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Harsco Corp – ‘10-K’ for 12/31/14 – ‘EX-101.SCH’

On:  Monday, 3/2/15, at 1:38pm ET   ·   For:  12/31/14   ·   Accession #:  45876-15-26   ·   File #:  1-03970

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  As Of               Filer                 Filing    For·On·As Docs:Size

 3/02/15  Harsco Corp                       10-K       12/31/14  110:32M

Annual Report   —   Form 10-K   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   1.82M 
 3: EX-21       Subsidiaries List                                   HTML     75K 
 4: EX-23       Consent of Experts or Counsel                       HTML     29K 
 2: EX-12       Statement re: Computation of Ratios                 HTML     48K 
 5: EX-31.1     Certification -- §302 - SOA'02                      HTML     34K 
 6: EX-31.2     Certification -- §302 - SOA'02                      HTML     34K 
 7: EX-32       Certification -- §906 - SOA'02                      HTML     30K 
74: R1          Document and Entity Information                     HTML     57K 
59: R2          Consolidated Balance Sheets                         HTML    195K 
70: R3          Consolidated Balance Sheets (Parenthetical)         HTML     35K 
78: R4          Consolidated Statements of Operations               HTML    166K 
100: R5          Consolidated Statements of Comprehensive Income     HTML     66K  
                (Loss)                                                           
61: R6          Consolidated Statements of Comprehensive Income     HTML     42K 
                (Loss) (Parenthetical)                                           
69: R7          Consolidated Statements of Cash Flows               HTML    201K 
53: R8          Consolidated Statements of Changes in Equity        HTML    116K 
42: R9          Consolidated Statements of Changes in Equity        HTML     60K 
                (Parenthetical)                                                  
102: R10         Summary of Significant Accounting Policies          HTML     96K  
80: R11         Recently Adopted and Recently Issued Accounting     HTML     39K 
                Standards                                                        
79: R12         Acquisitions and Dispositions                       HTML     74K 
86: R13         Accounts Receivable and Inventories                 HTML     71K 
87: R14         Equity Method Investments (Notes)                   HTML     98K 
84: R15         Property, Plant and Equipment                       HTML     52K 
88: R16         Goodwill and Other Intangible Assets                HTML    106K 
71: R17         Debt and Credit Agreements                          HTML     70K 
75: R18         Operating Leases                                    HTML     40K 
82: R19         Employee Benefit Plans                              HTML    526K 
110: R20         Income Taxes                                        HTML    233K  
96: R21         Commitments and Contingencies                       HTML     59K 
65: R22         Capital Stock                                       HTML    128K 
81: R23         Stock-Based Compensation                            HTML    353K 
67: R24         Financial Instruments                               HTML    236K 
33: R25         Information by Segment and Geographic Area          HTML    205K 
97: R26         Other Expenses                                      HTML    125K 
106: R27         Components of Accumulated Other Comprehensive Loss  HTML    178K  
47: R28         Restructuring Programs                              HTML     51K 
46: R29         Schedule Ii. Valuation and Qualifying Accounts      HTML     74K 
51: R30         Summary of Significant Accounting Policies          HTML    134K 
                (Policies)                                                       
52: R31         Summary of Significant Accounting Policies          HTML     48K 
                (Tables)                                                         
54: R32         Acquisitions and Dispositions (Tables)              HTML     67K 
22: R33         Accounts Receivable and Inventories (Tables)        HTML     73K 
94: R34         Equity Method Investments (Tables)                  HTML     88K 
63: R35         Property, Plant and Equipment (Tables)              HTML     50K 
66: R36         Goodwill and Other Intangible Assets (Tables)       HTML    104K 
37: R37         Debt and Credit Agreements (Tables)                 HTML     66K 
109: R38         Operating Leases (Tables)                           HTML     36K  
14: R39         Employee Benefit Plans (Tables)                     HTML    530K 
56: R40         Income Taxes (Tables)                               HTML    224K 
99: R41         Capital Stock (Tables)                              HTML    121K 
35: R42         Stock-Based Compensation (Tables)                   HTML    347K 
45: R43         Financial Instruments (Tables)                      HTML    214K 
50: R44         Information by Segment and Geographic Area          HTML    203K 
                (Tables)                                                         
60: R45         Other Expenses (Tables)                             HTML    120K 
21: R46         Components of Accumulated Other Comprehensive Loss  HTML    176K 
                (Tables)                                                         
41: R47         Restructuring Programs (Tables)                     HTML     45K 
16: R48         Summary of Significant Accounting Policies          HTML     31K 
                (Details)                                                        
98: R49         Summary of Significant Accounting Policies          HTML     60K 
                (Details 2)                                                      
34: R50         Summary of Significant Accounting Policies          HTML     29K 
                (Details 3)                                                      
95: R51         Summary of Significant Accounting Policies Prior    HTML     33K 
                period adjustments (Details)                                     
38: R52         Acquisitions and Dispositions (Details)             HTML    150K 
57: R53         Accounts Receivable and Inventories (Details)       HTML     80K 
15: R54         Equity Method Investments (Details)                 HTML    130K 
19: R55         Equity Method Investments (Details 2)               HTML     61K 
49: R56         Equity Method Investments (Details 3)               HTML     37K 
26: R57         Property, Plant and Equipment (Details)             HTML     66K 
103: R58         Goodwill and Other Intangible Assets (Details)      HTML     52K  
62: R59         Goodwill and Other Intangible Assets (Details 2)    HTML     94K 
85: R60         Debt and Credit Agreements (Details)                HTML     68K 
40: R61         Debt and Credit Agreements (Details 2)              HTML    101K 
43: R62         Operating Leases (Details)                          HTML     54K 
92: R63         Employee Benefit Plans (Details)                    HTML    117K 
89: R64         Employee Benefit Plans (Details 2)                  HTML    291K 
64: R65         Employee Benefit Plans (Details 3)                  HTML    518K 
91: R66         Employee Benefit Plans (Details 4)                  HTML     62K 
39: R67         Income Taxes (Details)                              HTML    284K 
68: R68         Income Taxes (Details 2)                            HTML    109K 
105: R69         Commitments and Contingencies (Details)             HTML     87K  
18: R70         Capital Stock (Details)                             HTML     80K 
32: R71         Capital Stock (Details 2)                           HTML    126K 
58: R72         Capital Stock (Details 3)                           HTML     53K 
24: R73         Stock-Based Compensation (Restricted Stock)         HTML    192K 
                (Details)                                                        
108: R74         Stock-Based Compensation (Stock Appreciation        HTML    351K  
                Rights) (Details)                                                
36: R75         Stock-Based Compensation (Performance Stock Units)  HTML    137K 
                (Details)                                                        
27: R76         Stock-Based Compensation (Stock Options) (Details)  HTML    115K 
31: R77         Stock-Based Compensation (Stock Options - Range of  HTML     55K 
                Exercise Prices) (Details)                                       
20: R78         Stock-Based Compensation (Other Stock Grants)       HTML     39K 
                (Details)                                                        
23: R79         Financial Instruments (Details)                     HTML     60K 
76: R80         Financial Instruments (Details 2)                   HTML     58K 
29: R81         Financial Instruments (Details 3)                   HTML     64K 
104: R82         Financial Instruments (Details 4)                   HTML     77K  
55: R83         Financial Instruments (Details 5)                   HTML     42K 
83: R84         Financial Instruments (Details 6)                   HTML     64K 
90: R85         Information by Segment and Geographic Area          HTML     49K 
                (Details)                                                        
28: R86         Information by Segment and Geographic Area          HTML     58K 
                (Details 2)                                                      
30: R87         Information by Segment and Geographic Area          HTML    102K 
                (Details 3)                                                      
101: R88         Information by Segment and Geographic Area          HTML     52K  
                (Details 4)                                                      
25: R89         Other Expenses (Details)                            HTML     83K 
77: R90         Components of Accumulated Other Comprehensive Loss  HTML    117K 
                (Details)                                                        
73: R91         Components of Accumulated Other Comprehensive Loss  HTML    110K 
                (Details 2)                                                      
93: R92         Restructuring Programs (Details)                    HTML     79K 
72: R93         Schedule Ii. Valuation and Qualifying Accounts      HTML     60K 
                (Details)                                                        
107: XML         IDEA XML File -- Filing Summary                      XML    170K  
17: EXCEL       IDEA Workbook of Financial Reports                  XLSX    557K 
44: EXCEL       IDEA Workbook of Financial Reports (.xls)            XLS   5.39M 
 8: EX-101.INS  XBRL Instance -- hsc-20141231                        XML   8.05M 
10: EX-101.CAL  XBRL Calculations -- hsc-20141231_cal                XML    417K 
11: EX-101.DEF  XBRL Definitions -- hsc-20141231_def                 XML   1.71M 
12: EX-101.LAB  XBRL Labels -- hsc-20141231_lab                      XML   3.58M 
13: EX-101.PRE  XBRL Presentations -- hsc-20141231_pre               XML   2.05M 
 9: EX-101.SCH  XBRL Schema -- hsc-20141231                          XSD    297K 
48: ZIP         XBRL Zipped Folder -- 0000045876-15-000026-xbrl      Zip    585K 


‘EX-101.SCH’   —   XBRL Schema — hsc-20141231


This Exhibit is an XBRL XML File.


                                                                                                                                                                                
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<link:definition> 2108100 - Disclosure - Debt and Credit Agreements </link:definition>
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<link:definition> 2408402 - Disclosure - Debt and Credit Agreements (Details) </link:definition>
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<link:definition> 2308301 - Disclosure - Debt and Credit Agreements (Tables) </link:definition>
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<link:definition> 2110100 - Disclosure - Employee Benefit Plans </link:definition>
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<link:definition> 2410402 - Disclosure - Employee Benefit Plans (Details) </link:definition>
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<link:definition> 2410403 - Disclosure - Employee Benefit Plans (Details 2) </link:definition>
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<link:definition> 2410404 - Disclosure - Employee Benefit Plans (Details 3) </link:definition>
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<link:definition> 2410405 - Disclosure - Employee Benefit Plans (Details 4) </link:definition>
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<link:definition> 2310301 - Disclosure - Employee Benefit Plans (Tables) </link:definition>
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<link:definition> 2405402 - Disclosure - Equity Method Investments (Details) </link:definition>
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<link:definition> 2405403 - Disclosure - Equity Method Investments (Details 2) </link:definition>
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<link:definition> 2405404 - Disclosure - Equity Method Investments (Details 3) </link:definition>
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<link:definition> 2105100 - Disclosure - Equity Method Investments (Notes) </link:definition>
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<link:definition> 2305301 - Disclosure - Equity Method Investments (Tables) </link:definition>
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<link:definition> 2115100 - Disclosure - Financial Instruments </link:definition>
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<link:definition> 2415402 - Disclosure - Financial Instruments (Details) </link:definition>
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<link:definition> 2415403 - Disclosure - Financial Instruments (Details 2) </link:definition>
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<link:definition> 2415404 - Disclosure - Financial Instruments (Details 3) </link:definition>
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<link:definition> 2415405 - Disclosure - Financial Instruments (Details 4) </link:definition>
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<link:definition> 2415406 - Disclosure - Financial Instruments (Details 5) </link:definition>
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<link:definition> 2415407 - Disclosure - Financial Instruments (Details 6) </link:definition>
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<link:definition> 2315301 - Disclosure - Financial Instruments (Tables) </link:definition>
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<link:definition> 2107100 - Disclosure - Goodwill and Other Intangible Assets </link:definition>
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<link:definition> 2407402 - Disclosure - Goodwill and Other Intangible Assets (Details) </link:definition>
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<link:definition> 2407403 - Disclosure - Goodwill and Other Intangible Assets (Details 2) </link:definition>
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<link:definition> 2307301 - Disclosure - Goodwill and Other Intangible Assets (Tables) </link:definition>
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<link:definition> 2111100 - Disclosure - Income Taxes </link:definition>
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<link:definition> 2411402 - Disclosure - Income Taxes (Details) </link:definition>
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<link:definition> 2411403 - Disclosure - Income Taxes (Details 2) </link:definition>
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<link:definition> 2411402 - Disclosure - Income Taxes (Details) </link:definition>
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<link:definition> 2116100 - Disclosure - Information by Segment and Geographic Area </link:definition>
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<link:definition> 2416402 - Disclosure - Information by Segment and Geographic Area (Details) </link:definition>
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<link:definition> 2416403 - Disclosure - Information by Segment and Geographic Area (Details 2) </link:definition>
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<link:definition> 2416405 - Disclosure - Information by Segment and Geographic Area (Details 4) </link:definition>
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<link:definition> 2109100 - Disclosure - Operating Leases </link:definition>
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<link:definition> 2409402 - Disclosure - Operating Leases (Details) </link:definition>
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<link:definition> 2117100 - Disclosure - Other Expenses </link:definition>
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<link:definition> 2417402 - Disclosure - Other Expenses (Details) </link:definition>
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<link:definition> 2406402 - Disclosure - Property, Plant and Equipment (Details) </link:definition>
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<link:definition> 2306301 - Disclosure - Property, Plant and Equipment (Tables) </link:definition>
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<link:definition> 2119100 - Disclosure - Restructuring Programs </link:definition>
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<link:definition> 2419402 - Disclosure - Restructuring Programs (Details) </link:definition>
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<link:definition> 2420401 - Schedule - SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS (Details) </link:definition>
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<link:definition> 2114100 - Disclosure - Stock-Based Compensation </link:definition>
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<link:definition> 2414407 - Disclosure - Stock-Based Compensation (Other Stock Grants) (Details) </link:definition>
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<link:definition> 2414404 - Disclosure - Stock-Based Compensation (Performance Stock Units) (Details) </link:definition>
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<link:definition> 2414402 - Disclosure - Stock-Based Compensation (Restricted Stock) (Details) </link:definition>
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<link:definition> 2414403 - Disclosure - Stock-Based Compensation (Stock Appreciation Rights) (Details) </link:definition>
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<link:definition> 2414405 - Disclosure - Stock-Based Compensation (Stock Options) (Details) </link:definition>
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<link:definition> 2414406 - Disclosure - Stock-Based Compensation (Stock Options - Range of Exercise Prices) (Details) </link:definition>
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<link:definition> 2314301 - Disclosure - Stock-Based Compensation (Tables) </link:definition>
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<xsd:element abstract="true" id="hsc_HarscoMetalsMineralsImprovementPlanProjectOrionMember" name="HarscoMetalsMineralsImprovementPlanProjectOrionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_HarscoRailMember" name="HarscoRailMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_HeatTransferProductsMember" name="HeatTransferProductsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ImpairmentOfLongLivedAssetsToBeDisposedOfAndTransactionExpenses" name="ImpairmentOfLongLivedAssetsToBeDisposedOfAndTransactionExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_InEventofanIPOMinimumCoVentureInterestinPartnershipThatCouldTerminateCompanysQuarterlyPayments" name="InEventofanIPOMinimumCoVentureInterestinPartnershipThatCouldTerminateCompanysQuarterlyPayments" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/>
<xsd:element id="hsc_IncomeExpenseOtherNet" name="IncomeExpenseOtherNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IncomeTaxDisclosureLineItems" name="IncomeTaxDisclosureLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IncomeTaxDisclosureTable" name="IncomeTaxDisclosureTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_IncreaseDecreaseInRestructuringProgramAccrualProgramOne" name="IncreaseDecreaseInRestructuringProgramAccrualProgramOne" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IndemnificationAgreementThreeMember" name="IndemnificationAgreementThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IndemnificationAgreementTwoMember" name="IndemnificationAgreementTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IndustrialGratingProductsMember" name="IndustrialGratingProductsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_InfrastructureTransactionStrategicVentureMember" name="InfrastructureTransactionStrategicVentureMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_InsuranceContractMember" name="InsuranceContractMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_InternationalMember" name="InternationalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_InternationalOtherThanUnitedKingdomMember" name="InternationalOtherThanUnitedKingdomMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_InventoryWriteDownForProductRationalization" name="InventoryWriteDownForProductRationalization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IssuePeriodFiveMember" name="IssuePeriodFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IssuePeriodFourMember" name="IssuePeriodFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IssuePeriodOneMember" name="IssuePeriodOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IssuePeriodSixMember" name="IssuePeriodSixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IssuePeriodThreeMember" name="IssuePeriodThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_IssuePeriodTwoMember" name="IssuePeriodTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_JointVentureContingencyThresholdInvesteeEarningsBeforeInterestTaxDepreciationandAmortization" name="JointVentureContingencyThresholdInvesteeEarningsBeforeInterestTaxDepreciationandAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element id="hsc_JointVentureContingencyThresholdNumberofYearsAfterAgreementThatWouldTerminateCompanysQuarterlyPayments" name="JointVentureContingencyThresholdNumberofYearsAfterAgreementThatWouldTerminateCompanysQuarterlyPayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/>
<xsd:element id="hsc_JointVentureLiquidationPreferenceValue" name="JointVentureLiquidationPreferenceValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
<xsd:element id="hsc_LineOfCreditFacilityContingentIncreaseToMaximumBorrowingCapacity" name="LineOfCreditFacilityContingentIncreaseToMaximumBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
<xsd:element id="hsc_LineOfCreditFacilityCovenantMaximumConsolidatedIndebtednessOfSubsidiaryToConsolidatedTangibleAssetsPercentage" name="LineOfCreditFacilityCovenantMaximumConsolidatedIndebtednessOfSubsidiaryToConsolidatedTangibleAssetsPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_LineOfCreditFacilityNumberOfLenders" name="LineOfCreditFacilityNumberOfLenders" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_LossContingencyAccrualRetrospectiveAdjustment" name="LossContingencyAccrualRetrospectiveAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element id="hsc_LossContingencyDamagesSoughtInterestPenaltiesAndFees" name="LossContingencyDamagesSoughtInterestPenaltiesAndFees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_LossContingencyDamagesSoughtPrincipalAmount" name="LossContingencyDamagesSoughtPrincipalAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_LosscontingencyBrazilianlaborclaimsMember" name="LosscontingencyBrazilianlaborclaimsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_LossonSaleofBusinessAndTransactionExpenses" name="LossonSaleofBusinessAndTransactionExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_MultiemployerPlanCostRecognized" name="MultiemployerPlanCostRecognized" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_MultiemployerPlanPeriodContributionsPercentage" name="MultiemployerPlanPeriodContributionsPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_MultiemployerPlansEmployerContributionsPercentagetoQualifyasSignificantPlan" name="MultiemployerPlansEmployerContributionsPercentagetoQualifyasSignificantPlan" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_MultiemployerPlansPensionDomesticMember" name="MultiemployerPlansPensionDomesticMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_MultiemployerPlansPensionForeignMember" name="MultiemployerPlansPensionForeignMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_NetPeriodPensionCostsDomestic" name="NetPeriodPensionCostsDomestic" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_NetPeriodPensionCostsForeign" name="NetPeriodPensionCostsForeign" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_NetWorkingCapitalSettlementMember" name="NetWorkingCapitalSettlementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_NewYorkCountyAsManagedByNewYorkSupremeCourtMember" name="NewYorkCountyAsManagedByNewYorkSupremeCourtMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_NewYorkStateSupremeCourtCountiesExcludingNewYorkCountyMember" name="NewYorkStateSupremeCourtCountiesExcludingNewYorkCountyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_NewZealandSteelPensionFundMember" name="NewZealandSteelPensionFundMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_NonEmployeeDirectorsStockPlan1995Member" name="NonEmployeeDirectorsStockPlan1995Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_Notes2Point70PercentDue15October2015Member" name="Notes2Point70PercentDue15October2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_Notes5Point75PercentDue15May2018Member" name="Notes5Point75PercentDue15May2018Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_NumberOfCountriesInWhichEntityHasCurrencyExposures" name="NumberOfCountriesInWhichEntityHasCurrencyExposures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_NumberOfMajorCustomers" name="NumberOfMajorCustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_OnsiteServicesToMetalProducersMember" name="OnsiteServicesToMetalProducersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_OtherAssetCategoriesMutualFundsMember" name="OtherAssetCategoriesMutualFundsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_OtherAssetCategoryMember" name="OtherAssetCategoryMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_OtherCountriesMember" name="OtherCountriesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_OtherIncludingAsbestosRelatedClaimsMember" name="OtherIncludingAsbestosRelatedClaimsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_OtherIncomeDisclosureTextBlock" name="OtherIncomeDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_OtherMiscellaneousIncomeExpense" name="OtherMiscellaneousIncomeExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_OtherMultiEmployerPlansMember" name="OtherMultiEmployerPlansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_OtherStockBasedCompensationUnitsMember" name="OtherStockBasedCompensationUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_OtherStockGrantsMember" name="OtherStockGrantsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_Paymentofunitadjustmentliability" name="Paymentofunitadjustmentliability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_PaymentsToAcquireBusinessesOtherNoncurrentAssetsNoncurrentLiabilitiesNet" name="PaymentsToAcquireBusinessesOtherNoncurrentAssetsNoncurrentLiabilitiesNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element id="hsc_PaymentsToAcquireBusinessesPropertyPlantAndEquipment" name="PaymentsToAcquireBusinessesPropertyPlantAndEquipment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_PendingAndFutureLitigationDeferredOrInactiveDocketMember" name="PendingAndFutureLitigationDeferredOrInactiveDocketMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_PendingLitigationActiveOrInExtremisDocketMember" name="PendingLitigationActiveOrInExtremisDocketMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_PensionAndPostretirementPlansLineItems" name="PensionAndPostretirementPlansLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_PreferredStockPurchaseRightsAgreementMember" name="PreferredStockPurchaseRightsAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ProceedsFromSaleOfAssetsAndDivestitureOfBusinesses" name="ProceedsFromSaleOfAssetsAndDivestitureOfBusinesses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_ProductWarrantyAccrualCurrencyTranslationAndOtherIncreaseDecrease" name="ProductWarrantyAccrualCurrencyTranslationAndOtherIncreaseDecrease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_PurchaseOfBusinessesNetOfCashAcquiredAbstract" name="PurchaseOfBusinessesNetOfCashAcquiredAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_QuantifyingMisstatementInCurrentYearFinancialStatementsAdjustmentAmount" name="QuantifyingMisstatementInCurrentYearFinancialStatementsAdjustmentAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_QuantifyingMisstatementInCurrentYearFinancialStatementsAmountPerDilutedShare" name="QuantifyingMisstatementInCurrentYearFinancialStatementsAmountPerDilutedShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_RailwayTrackMaintenanceServicesAndEquipmentMember" name="RailwayTrackMaintenanceServicesAndEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAmountsRelatedToAssetImpairmentLossRecognizedinAcquisitionsandDispositions" name="ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAmountsRelatedToAssetImpairmentLossRecognizedinAcquisitionsandDispositions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxExcludingAmountsRelatedToAssetImpairmentLossRecognizedinAcquisitionsandDispositions" name="ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxExcludingAmountsRelatedToAssetImpairmentLossRecognizedinAcquisitionsandDispositions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_ReclassificationFromAccumulatedOtherComprehensiveIncomeNetofTaxEquityMethodInvestee" name="ReclassificationFromAccumulatedOtherComprehensiveIncomeNetofTaxEquityMethodInvestee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ReconciliationOfDeferredIncomeTaxBenefitsRollForward" name="ReconciliationOfDeferredIncomeTaxBenefitsRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ReconciliationOfNetUnrecognizedTaxBenefitsRollForward" name="ReconciliationOfNetUnrecognizedTaxBenefitsRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_RestructuringAndRelatedActivitiesCompensationSavingsRealized" name="RestructuringAndRelatedActivitiesCompensationSavingsRealized" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element id="hsc_RestructuringCostsProgramTwo" name="RestructuringCostsProgramTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_RestructuringProgram2011And2012Member" name="RestructuringProgram2011And2012Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_RestructuringReservePeriodExpenseAndOtherAdjustments" name="RestructuringReservePeriodExpenseAndOtherAdjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_SaoPauloStateRevenueAuthorityMember" name="SaoPauloStateRevenueAuthorityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ScheduleOfAccumulatedBenefitObligationsTableTextBlock" name="ScheduleOfAccumulatedBenefitObligationsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ScheduleOfBusinessExitCostsTableTextBlock" name="ScheduleOfBusinessExitCostsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ScheduleOfGainLossOnDispositionOfAssetsTableTextBlock" name="ScheduleOfGainLossOnDispositionOfAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ScheduleOfOtherIncomeExpensesTableTextBlock" name="ScheduleOfOtherIncomeExpensesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ScheduleOfPensionAndPostretirementPlansTable" name="ScheduleOfPensionAndPostretirementPlansTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ScheduleOfProvisionForDoubtfulAccountsReceivablesTableTextBlock" name="ScheduleOfProvisionForDoubtfulAccountsReceivablesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ScheduleOfSeveranceCostsTableTextBlock" name="ScheduleOfSeveranceCostsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ScheduleOfShareBasedCompensationRestrictedStockUnitsAndCompensationExpenseTableTextBlock" name="ScheduleOfShareBasedCompensationRestrictedStockUnitsAndCompensationExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsByExercisePriceRangeTableTextBlock" name="ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsByExercisePriceRangeTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ScheduleOfShareBasedPaymentAwardInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock" name="ScheduleOfShareBasedPaymentAwardInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ScheduleOfShareRepurchasesTableTextBlock" name="ScheduleOfShareRepurchasesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageRemainingContractualTerms" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageRemainingContractualTerms" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageExercisePriceRollForward" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageExercisePriceRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant"/>
<xsd:element id="hsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ShareBasedCompensationArrangementsByShareBasedPaymentAwardPerformanceStockPayoutPercentageOfInitialGrant" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardPerformanceStockPayoutPercentageOfInitialGrant" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeExercisableSARsWeightedAverageExercisePrice" name="ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeExercisableSARsWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant"/>
<xsd:element id="hsc_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeNumberOfExercisableShares" name="ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeNumberOfExercisableShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
<xsd:element id="hsc_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeOutstandingSARsWeightedAverageExercisePrice" name="ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeOutstandingSARsWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant"/>
<xsd:element id="hsc_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeOutstandingSARsWeightedAverageRemainingContractualTerm" name="ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeOutstandingSARsWeightedAverageRemainingContractualTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_SharebasedCompensationArrangementbySharebasedPaymentAwardAwardRetirementAgeofEmployee" name="SharebasedCompensationArrangementbySharebasedPaymentAwardAwardRetirementAgeofEmployee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsAggregateIntrinsicValueExercised" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsAggregateIntrinsicValueExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExercisedinPeriodWeightedAverageExercisePrice" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExercisedinPeriodWeightedAverageExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExercisedinPeriodWeightedAverageGrantDateFairValue" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExercisedinPeriodWeightedAverageGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_SharebasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeNumberOfUnvestedShares" name="SharebasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeNumberOfUnvestedShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
<xsd:element id="hsc_SharebasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeNumberOfVestedShares" name="SharebasedCompensationSharesAuthorizedUnderStockAppreciationRightsExercisePriceRangeNumberOfVestedShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
<xsd:element id="hsc_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfNonvestedOptions" name="SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfNonvestedOptions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
<xsd:element id="hsc_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfVestedOptions" name="SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfVestedOptions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
<xsd:element abstract="true" id="hsc_SharesAuthorizedToBePurchasedRollForward" name="SharesAuthorizedToBePurchasedRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_StandbyLettersOfCreditBondsAndBankGuaranteesMember" name="StandbyLettersOfCreditBondsAndBankGuaranteesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeituresAndTaxObligationsSettledInShares" name="StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeituresAndTaxObligationsSettledInShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_StockIssuedDuringPeriodSharesStockOptionsExercisedNetOfTaxObligationsSettledInShares" name="StockIssuedDuringPeriodSharesStockOptionsExercisedNetOfTaxObligationsSettledInShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_StockIssuedDuringPeriodStockAppreciationRights" name="StockIssuedDuringPeriodStockAppreciationRights" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_StockRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased" name="StockRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_TaxYear2018Member" name="TaxYear2018Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_TaxYears2013Through2017Member" name="TaxYears2013Through2017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_TaxYears2018Through2022Member" name="TaxYears2018Through2022Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_TaxYears2023Through2027Member" name="TaxYears2023Through2027Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_TaxYears2028Through2032Member" name="TaxYears2028Through2032Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_TotalAnnualPaymentstoAcquireJointVentureAfterTax" name="TotalAnnualPaymentstoAcquireJointVentureAfterTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element id="hsc_TotalAnnualPaymentstoAcquireJointVentureBeforeTax" name="TotalAnnualPaymentstoAcquireJointVentureBeforeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element id="hsc_UndistributedEarningsofForeignSubsidiariesIncomeTaxExpenseIfRepatriated" name="UndistributedEarningsofForeignSubsidiariesIncomeTaxExpenseIfRepatriated" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
<xsd:element abstract="true" id="hsc_UnitAdjustmentLiabilityInfrastructureTransactionMember" name="UnitAdjustmentLiabilityInfrastructureTransactionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element id="hsc_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositionsNet" name="UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositionsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthoritiesNet" name="UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthoritiesNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element id="hsc_UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromChangesInEnactedLegislation" name="UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromChangesInEnactedLegislation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element id="hsc_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositionsNet" name="UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositionsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element id="hsc_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositionsNet" name="UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositionsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
<xsd:element id="hsc_UnrecognizedTaxBenefitsNet" name="UnrecognizedTaxBenefitsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
<xsd:element id="hsc_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitationsNet" name="UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitationsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_UsCommercialPaperMember" name="UsCommercialPaperMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_UsTreasurySecuritiesAndMortgageBackedSecuritiesMember" name="UsTreasurySecuritiesAndMortgageBackedSecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ValuationAllowanceDeferredTaxAssetCapitalLossCarryforwardMember" name="ValuationAllowanceDeferredTaxAssetCapitalLossCarryforwardMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ValuationAllowanceDeferredTaxAssetCurrencyTranslationMember" name="ValuationAllowanceDeferredTaxAssetCurrencyTranslationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ValuationAllowanceDeferredTaxAssetPensionAdjustmentsMember" name="ValuationAllowanceDeferredTaxAssetPensionAdjustmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ValuationAllowanceDeferredTaxAssetsDisposalOfAssetsMember" name="ValuationAllowanceDeferredTaxAssetsDisposalOfAssetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ValuationAllowanceDeferredTaxAssetsOperatingLossCarryforwardsMoreLikelyThanNotNotToBeRealizedMember" name="ValuationAllowanceDeferredTaxAssetsOperatingLossCarryforwardsMoreLikelyThanNotNotToBeRealizedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ValueAddedTaxAssessmentsJanuary2002ToDecember2003Member" name="ValueAddedTaxAssessmentsJanuary2002ToDecember2003Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
<xsd:element abstract="true" id="hsc_ValueAddedTaxAssessmentsJanuary2004ToMay2005Member" name="ValueAddedTaxAssessmentsJanuary2004ToMay2005Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
</xsd:schema>


2 Subsequent Filings that Reference this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 1/14/16  SEC                               UPLOAD10/11/17    1:128K Enviri Corp.
12/04/15  SEC                               UPLOAD10/11/17    1:156K Enviri Corp.
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