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Sunbelt-Turret Steel Inc., et al. – ‘S-4’ on 6/27/13 – ‘EX-101.SCH’

On:  Thursday, 6/27/13, at 4:44pm ET   ·   Accession #:  1193125-13-274848   ·   File #s:  333-189642, -01, -02, -03, -04, -05, -06, -07, -08, -09, -10, -11, -12, -13, -14, -15, -16, -17

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

 6/27/13  Sunbelt-Turret Steel Inc.         S-4                  176:28M                                    Donnelley … Solutions/FA
          Ryerson Holdings (Brazil), LLC
          Imperial-Trucking Company, LLC
          Ryerson Procurement Corp
          Ryerson International Trading, Inc.
          Ryerson Pan-Pacific LLC
          Turret Steel Industries, Inc.
          Wilcox-Turret Cold Drawn, Inc.
          J.M. Tull Metals Company, Inc.
          Ryerson International, Inc.
          Ryerson Americas, Inc.
          RCJV Holdings, Inc.
          Ryerson Inc.
          RdM Holdings, Inc.
          Turret Holding Corp
          Joseph T. Ryerson & Son, Inc.
          Epe, LLC
          Ryerson International Material Management Services, Inc.

Registration of Securities Issued in a Business-Combination Transaction   —   Form S-4
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: S-4         Registration of Securities Issued in a              HTML   3.06M 
                Business-Combination Transaction                                 
 2: EX-3.1      Articles of Incorporation/Organization or Bylaws    HTML     55K 
11: EX-3.10     Articles of Incorporation/Organization or Bylaws    HTML    116K 
12: EX-3.11     Articles of Incorporation/Organization or Bylaws    HTML     52K 
13: EX-3.12     Articles of Incorporation/Organization or Bylaws    HTML     83K 
14: EX-3.13     Articles of Incorporation/Organization or Bylaws    HTML     52K 
15: EX-3.14     Articles of Incorporation/Organization or Bylaws    HTML     83K 
16: EX-3.15     Articles of Incorporation/Organization or Bylaws    HTML     56K 
17: EX-3.16     Articles of Incorporation/Organization or Bylaws    HTML     83K 
18: EX-3.17     Articles of Incorporation/Organization or Bylaws    HTML     55K 
19: EX-3.18     Articles of Incorporation/Organization or Bylaws    HTML     81K 
20: EX-3.19     Articles of Incorporation/Organization or Bylaws    HTML     56K 
 3: EX-3.2      Articles of Incorporation/Organization or Bylaws    HTML     86K 
21: EX-3.20     Articles of Incorporation/Organization or Bylaws    HTML     85K 
22: EX-3.21     Articles of Incorporation/Organization or Bylaws    HTML     59K 
23: EX-3.22     Articles of Incorporation/Organization or Bylaws    HTML     83K 
24: EX-3.23     Articles of Incorporation/Organization or Bylaws    HTML     57K 
25: EX-3.24     Articles of Incorporation/Organization or Bylaws    HTML     83K 
26: EX-3.25     Articles of Incorporation/Organization or Bylaws    HTML     53K 
27: EX-3.26     Articles of Incorporation/Organization or Bylaws    HTML     82K 
28: EX-3.27     Articles of Incorporation/Organization or Bylaws    HTML     53K 
29: EX-3.28     Articles of Incorporation/Organization or Bylaws    HTML     81K 
30: EX-3.29     Articles of Incorporation/Organization or Bylaws    HTML     46K 
 4: EX-3.3      Articles of Incorporation/Organization or Bylaws    HTML     62K 
31: EX-3.30     Articles of Incorporation/Organization or Bylaws    HTML     67K 
32: EX-3.31     Articles of Incorporation/Organization or Bylaws    HTML     50K 
33: EX-3.32     Articles of Incorporation/Organization or Bylaws    HTML     89K 
34: EX-3.33     Articles of Incorporation/Organization or Bylaws    HTML     47K 
35: EX-3.34     Articles of Incorporation/Organization or Bylaws    HTML     67K 
36: EX-3.35     Articles of Incorporation/Organization or Bylaws    HTML     73K 
37: EX-3.36     Articles of Incorporation/Organization or Bylaws    HTML     71K 
 5: EX-3.4      Articles of Incorporation/Organization or Bylaws    HTML     83K 
 6: EX-3.5      Articles of Incorporation/Organization or Bylaws    HTML    142K 
 7: EX-3.6      Articles of Incorporation/Organization or Bylaws    HTML    136K 
 8: EX-3.7      Articles of Incorporation/Organization or Bylaws    HTML    121K 
 9: EX-3.8      Articles of Incorporation/Organization or Bylaws    HTML    136K 
10: EX-3.9      Articles of Incorporation/Organization or Bylaws    HTML     92K 
38: EX-4.1      Instrument Defining the Rights of Security Holders  HTML    789K 
39: EX-4.2      Instrument Defining the Rights of Security Holders  HTML    620K 
40: EX-4.7      Instrument Defining the Rights of Security Holders  HTML    139K 
41: EX-4.8      Instrument Defining the Rights of Security Holders  HTML    138K 
42: EX-10.5     Material Contract                                   HTML    196K 
43: EX-10.6     Material Contract                                   HTML    332K 
44: EX-10.7     Material Contract                                   HTML     60K 
46: EX-21.1     Subsidiaries List                                   HTML     48K 
47: EX-23.1     Consent of Experts or Counsel                       HTML     46K 
48: EX-99.1     Miscellaneous Exhibit                               HTML    112K 
49: EX-99.2     Miscellaneous Exhibit                               HTML     64K 
50: EX-99.3     Miscellaneous Exhibit                               HTML     61K 
51: EX-99.4     Miscellaneous Exhibit                               HTML     54K 
45: EX-12.1     Statement re: Computation of Ratios                 HTML     65K 
170: R1          Document and Entity Information                     HTML     59K  
123: R2          Consolidated Statements Of Operations               HTML    140K  
119: R3          Consolidated Statements Of Comprehensive Income     HTML     95K  
67: R4          Consolidated Statements Of Cash Flows               HTML    222K 
121: R5          Consolidated Balance Sheets                         HTML    205K  
100: R6          Consolidated Balance Sheets (Parenthetical)         HTML     58K  
148: R7          Consolidated Statements Of Stockholders Equity      HTML    100K  
102: R8          Consolidated Statements Of Stockholders Equity      HTML     50K  
                (Parenthetical)                                                  
105: R9          Summary of Accounting and Financial Policies        HTML     78K  
68: R10         Acquisitions                                        HTML     89K 
103: R11         Restricted Cash                                     HTML     49K  
147: R12         Inventories                                         HTML     59K  
137: R13         Property, Plant and Equipment                       HTML     60K  
120: R14         Intangible Assets                                   HTML     74K  
165: R15         Goodwill                                            HTML     56K  
143: R16         Restructuring and Other Charges                     HTML     79K  
65: R17         Debt                                                HTML    115K 
74: R18         Employee Benefits                                   HTML    286K 
164: R19         Commitments and Contingencies                       HTML     63K  
168: R20         Related Parties                                     HTML     53K  
172: R21         Sales by Product                                    HTML     65K  
167: R22         Other Matters                                       HTML     51K  
128: R23         Compensation Plan                                   HTML     55K  
70: R24         Derivatives and Fair Value Measurements             HTML    210K 
99: R25         Income Taxes                                        HTML    112K 
81: R26         Condensed Consolidating Financial Statements        HTML    613K 
80: R27         Supplementary Financial Data                        HTML     83K 
107: R28         Schedule II -Valuation And Qualifying Accounts      HTML     68K  
127: R29         Financial Statements                                HTML     69K  
140: R30         Recent Accounting Pronouncements                    HTML     54K  
87: R31         Goodwill and Other Intangible Assets                HTML     54K 
108: R32         Stockholders' Equity (Deficit), Other               HTML    109K  
                Comprehensive Income and Redeemable Noncontrolling               
                Interest                                                         
155: R33         Subsequent Events                                   HTML     49K  
84: R34         Summary of Accounting and Financial Policies        HTML    168K 
                (Policies)                                                       
135: R35         Summary of Accounting and Financial Policies        HTML     51K  
                (Tables)                                                         
136: R36         Acquisitions (Tables)                               HTML     76K  
111: R37         Inventories (Tables)                                HTML     53K  
79: R38         Property, Plant and Equipment (Tables)              HTML     56K 
134: R39         Intangible Assets (Tables)                          HTML     75K  
85: R40         Goodwill (Tables)                                   HTML     56K 
106: R41         Restructuring and Other Charges (Tables)            HTML     70K  
141: R42         Debt (Tables)                                       HTML     81K  
93: R43         Employee Benefits (Tables)                          HTML    288K 
130: R44         Financial Statements (Tables)                       HTML     74K  
118: R45         Derivatives and Fair Value Measurements (Tables)    HTML    210K  
83: R46         Income Taxes (Tables)                               HTML    109K 
151: R47         Condensed Consolidating Financial Statements        HTML    610K  
                (Tables)                                                         
76: R48         Supplementary Financial Data (Tables)               HTML     80K 
86: R49         Stockholders' Equity (Deficit), Other               HTML     98K 
                Comprehensive Income and Redeemable Noncontrolling               
                Interest (Tables)                                                
117: R50         Summary of Accounting and Financial Policies -      HTML     75K  
                Additional Information (Detail)                                  
124: R51         Estimated Useful Lives of Assets (Detail)           HTML     54K  
150: R52         Acquisitions - Additional Information (Detail)      HTML    130K  
66: R53         Estimated Fair Values of Assets Acquired and        HTML     96K 
                Liabilities Assumed (Detail)                                     
132: R54         Unaudited Pro Forma Information (Detail)            HTML     53K  
114: R55         Restricted Cash - Additional Information (Detail)   HTML     55K  
73: R56         Inventories (Detail)                                HTML     51K 
78: R57         Inventories - Additional Information (Detail)       HTML     66K 
122: R58         Property Plant and Equipment (Detail)               HTML     72K  
162: R59         Property Plant and Equipment - Additional           HTML     55K  
                Information (Detail)                                             
175: R60         Components of Intangible Assets (Detail)            HTML     65K  
173: R61         Intangible Assets - Additional Information          HTML     56K  
                (Detail)                                                         
138: R62         Estimated Amortization Expense (Detail)             HTML     62K  
92: R63         Changes in Carrying Amount of Goodwill (Detail)     HTML     67K 
89: R64         Goodwill - Additional Information (Detail)          HTML     65K 
133: R65         Restructuring Accrual Activity Summary (Detail)     HTML     76K  
160: R66         Restructuring and Other Charges - Additional        HTML     98K  
                Information (Detail)                                             
72: R67         Long-term debt (Detail)                             HTML     73K 
166: R68         Principal Payments on Debt (Detail)                 HTML     65K  
94: R69         Debt - Additional Information (Detail)              HTML    142K 
112: R70         Employee Benefits - Additional Information          HTML    149K  
                (Detail)                                                         
109: R71         Assumptions Used for Retirement Benefit Plans       HTML     69K  
                (Detail)                                                         
91: R72         Benefit Obligations and Net Periodic Benefit Costs  HTML    147K 
                (Detail)                                                         
104: R73         Amounts Recognized in Accumulated Other             HTML     64K  
                Comprehensive Income (Loss) (Detail)                             
146: R74         Amounts Recognized in Other Comprehensive Income    HTML     69K  
                (Loss) (Detail)                                                  
126: R75         Components of Net Periodic Benefit Cost (Detail)    HTML     86K  
60: R76         Effect of One Percentage Point Change in Assumed    HTML     59K 
                Health Care Cost Trend Rates (Detail)                            
131: R77         Weighted Average Asset Allocations (Detail)         HTML     55K  
61: R78         Target Ranges And Allocations (Detail)              HTML     61K 
125: R79         Fair Value Of Pension Plan Assets By Asset          HTML     90K  
                Category (Detail)                                                
77: R80         Fair Value Measurements Using Significant           HTML     81K 
                Unobservable Inputs (Detail)                                     
158: R81         Estimated Future Benefit Payments (Detail)          HTML     64K  
153: R82         Commitments and Contingencies - Additional          HTML    102K  
                Information (Detail)                                             
163: R83         Related Parties - Additional Information (Detail)   HTML     58K  
171: R84         Percentage of Sales by Major Product Line (Detail)  HTML     64K  
176: R85         Sales By Product - Additional Information (Detail)  HTML     56K  
59: R86         Other Matters - Additional Information (Detail)     HTML     54K 
75: R87         Compensation Plan - Additional Information          HTML     76K 
                (Detail)                                                         
159: R88         Location and Fair Value Amount of Derivative        HTML     58K  
                Instruments Reported in Consolidated Balance Sheet               
                (Detail)                                                         
139: R89         Derivatives and Fair Value Measurements -           HTML     66K  
                Additional Information (Detail)                                  
149: R90         Location and Amount of Gains and Losses Reported    HTML     59K  
                in Consolidated Statement of Operations (Detail)                 
144: R91         Assets And Liabilities Measured And Recorded At     HTML     73K  
                Fair Value On Recurring Basis (Detail)                           
63: R92         Assets and Liabilities Measured and Recorded at     HTML     52K 
                Fair Value on Non Recurring Basis (Detail)                       
95: R93         Carrying and Estimated Fair Values of Financial     HTML     90K 
                Instruments (Detail)                                             
96: R94         Available for Sale Securities (Detail)              HTML     60K 
113: R95         Elements Of Provision (Benefit) For Income Taxes    HTML     99K  
                (Detail)                                                         
98: R96         Reconciliation of Income Taxes with Amounts         HTML     85K 
                Computed by Applying Federal Tax Rate (Detail)                   
157: R97         Reconciliation of Income Taxes with Amounts         HTML     65K  
                Computed by Applying Federal Tax Rate                            
                (Parenthetical) (Detail)                                         
82: R98         Components Of Deferred Income Tax Assets And        HTML     96K 
                Liabilities (Detail)                                             
64: R99         Income Taxes - Additional Information (Detail)      HTML    104K 
156: R100        Reconciliation of Unrecognized Tax Benefits         HTML     57K  
                (Detail)                                                         
110: R101        Condensed Consolidating Financial Statements -      HTML     52K  
                Additional information (Detail)                                  
142: R102        Condensed Consolidating Statement Of Operations     HTML    198K  
                (Detail)                                                         
129: R103        Condensed Consolidating Statement Of Comprehensive  HTML    207K  
                Income (Detail)                                                  
152: R104        Condensed Consolidating Statement Of Cash Flows     HTML    131K  
                (Detail)                                                         
169: R105        Condensed Consolidating Balance Sheet (Detail)      HTML    104K  
101: R106        Summary by Quarter (Detail)                         HTML     79K  
62: R107        Summary by Quarter (Parenthetical) (Detail)         HTML     90K 
90: R108        Valuation And Qualifying Accounts (Detail)          HTML     67K 
174: R109        Valuation And Qualifying Accounts (Parenthetical)   HTML     50K  
                (Detail)                                                         
88: R110        Financial Statements - Additional Information       HTML     52K 
                (Detail)                                                         
154: R111        Goodwill and Other Intangible Assets - Additional   HTML     56K  
                Information (Detail)                                             
71: R112        Change In Stockholders' Equity (Deficit), Other     HTML    105K 
                Comprehensive Income and Redeemable Noncontrolling               
                Interest (Detail)                                                
97: R113        Change In Stockholders' Equity (Deficit), Other     HTML     52K 
                Comprehensive Income and Redeemable Noncontrolling               
                Interest (Parenthetical) (Detail)                                
145: R114        Changes in Accumulated Other Comprehensive Income   HTML    108K  
                (loss) by Component (Detail)                                     
161: R115        Reclassifications Out Of Accumulated Other          HTML     67K  
                Comprehensive Income (Detail)                                    
58: R116        Subsequent Event - Additional Information (Detail)  HTML     60K 
116: XML         IDEA XML File -- Filing Summary                      XML    222K  
115: EXCEL       IDEA Workbook of Financial Reports (.xls)            XLS   3.79M  
52: EX-101.INS  XBRL Instance -- ck0000790528-20130331               XML   5.60M 
54: EX-101.CAL  XBRL Calculations -- ck0000790528-20130331_cal       XML    382K 
55: EX-101.DEF  XBRL Definitions -- ck0000790528-20130331_def        XML   1.84M 
56: EX-101.LAB  XBRL Labels -- ck0000790528-20130331_lab             XML   2.13M 
57: EX-101.PRE  XBRL Presentations -- ck0000790528-20130331_pre      XML   2.09M 
53: EX-101.SCH  XBRL Schema -- ck0000790528-20130331                 XSD    307K 
69: ZIP         XBRL Zipped Folder -- 0001193125-13-274848-xbrl      Zip    390K

‘EX-101.SCH’   —   XBRL Schema — ck0000790528-20130331

This Exhibit is an XBRL XML File.

                                                                                                                                                                                
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<link:definition> 1020 - Disclosure - Commitments and Contingencies </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsRelatedPartyTransactionsDisclosureTextBlock" id="Role_NotesToFinancialStatementsRelatedPartyTransactionsDisclosureTextBlock">
<link:definition> 1021 - Disclosure - Related Parties </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsNetSalesByProductLineTableTextBlock" id="Role_NotesToFinancialStatementsNetSalesByProductLineTableTextBlock">
<link:definition> 1022 - Disclosure - Sales by Product </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsEquityMethodInvestmentsDisclosureTextBlock" id="Role_NotesToFinancialStatementsEquityMethodInvestmentsDisclosureTextBlock">
<link:definition> 1023 - Disclosure - Other Matters </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" id="Role_NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock">
<link:definition> 1024 - Disclosure - Compensation Plan </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsFinancialInstrumentsDisclosureTextBlock" id="Role_NotesToFinancialStatementsFinancialInstrumentsDisclosureTextBlock">
<link:definition> 1025 - Disclosure - Derivatives and Fair Value Measurements </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlock" id="Role_NotesToFinancialStatementsIncomeTaxDisclosureTextBlock">
<link:definition> 1026 - Disclosure - Income Taxes </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsCondensedConsolidatingFinancialInformationTextBlock" id="Role_NotesToFinancialStatementsCondensedConsolidatingFinancialInformationTextBlock">
<link:definition> 1027 - Disclosure - Condensed Consolidating Financial Statements </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsQuarterlyFinancialInformationTextBlock" id="Role_NotesToFinancialStatementsQuarterlyFinancialInformationTextBlock">
<link:definition> 1028 - Disclosure - Supplementary Financial Data </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" id="Role_NotesToFinancialStatementsScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock">
<link:definition> 1029 - Disclosure - Schedule II -Valuation And Qualifying Accounts </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" id="Role_NotesToFinancialStatementsOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock">
<link:definition> 1030 - Disclosure - Financial Statements </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" id="Role_NotesToFinancialStatementsNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock">
<link:definition> 1031 - Disclosure - Recent Accounting Pronouncements </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlock" id="Role_NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlock">
<link:definition> 1032 - Disclosure - Goodwill and Other Intangible Assets </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock" id="Role_NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlock">
<link:definition> 1033 - Disclosure - Stockholders' Equity (Deficit), Other Comprehensive Income and Redeemable Noncontrolling Interest </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsSubsequentEventsTextBlock" id="Role_NotesToFinancialStatementsSubsequentEventsTextBlock">
<link:definition> 1034 - Disclosure - Subsequent Events </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlockPolicies" id="Role_NotesToFinancialStatementsOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlockPolicies">
<link:definition> 1035 - Disclosure - Summary of Accounting and Financial Policies (Policies) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlockTables" id="Role_NotesToFinancialStatementsOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlockTables">
<link:definition> 1036 - Disclosure - Summary of Accounting and Financial Policies (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsBusinessCombinationDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsBusinessCombinationDisclosureTextBlockTables">
<link:definition> 1037 - Disclosure - Acquisitions (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsInventoryDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsInventoryDisclosureTextBlockTables">
<link:definition> 1038 - Disclosure - Inventories (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsPropertyPlantAndEquipmentDisclosureTextBlockTables">
<link:definition> 1039 - Disclosure - Property, Plant and Equipment (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsIntangibleAssetsDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsIntangibleAssetsDisclosureTextBlockTables">
<link:definition> 1040 - Disclosure - Intangible Assets (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsGoodwillDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsGoodwillDisclosureTextBlockTables">
<link:definition> 1041 - Disclosure - Goodwill (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsRestructuringAndRelatedActivitiesDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsRestructuringAndRelatedActivitiesDisclosureTextBlockTables">
<link:definition> 1042 - Disclosure - Restructuring and Other Charges (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsDebtDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsDebtDisclosureTextBlockTables">
<link:definition> 1043 - Disclosure - Debt (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsPensionAndOtherPostretirementBenefitsDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsPensionAndOtherPostretirementBenefitsDisclosureTextBlockTables">
<link:definition> 1044 - Disclosure - Employee Benefits (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlockTables">
<link:definition> 1045 - Disclosure - Financial Statements (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsFinancialInstrumentsDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsFinancialInstrumentsDisclosureTextBlockTables">
<link:definition> 1046 - Disclosure - Derivatives and Fair Value Measurements (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsIncomeTaxDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsIncomeTaxDisclosureTextBlockTables">
<link:definition> 1047 - Disclosure - Income Taxes (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsCondensedConsolidatingFinancialInformationTextBlockTables" id="Role_NotesToFinancialStatementsCondensedConsolidatingFinancialInformationTextBlockTables">
<link:definition> 1048 - Disclosure - Condensed Consolidating Financial Statements (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsQuarterlyFinancialInformationTextBlockTables" id="Role_NotesToFinancialStatementsQuarterlyFinancialInformationTextBlockTables">
<link:definition> 1049 - Disclosure - Supplementary Financial Data (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlockTables" id="Role_NotesToFinancialStatementsStockholdersEquityNoteDisclosureTextBlockTables">
<link:definition> 1050 - Disclosure - Stockholders' Equity (Deficit), Other Comprehensive Income and Redeemable Noncontrolling Interest (Tables) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureSummaryOfAccountingAndFinancialPoliciesAdditionalInformation" id="DisclosureSummaryOfAccountingAndFinancialPoliciesAdditionalInformation">
<link:definition> 1051 - Disclosure - Summary of Accounting and Financial Policies - Additional Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureEstimatedUsefulLivesOfAssets" id="DisclosureEstimatedUsefulLivesOfAssets">
<link:definition> 1052 - Disclosure - Estimated Useful Lives of Assets (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureAcquisitionsAdditionalInformation" id="DisclosureAcquisitionsAdditionalInformation">
<link:definition> 1053 - Disclosure - Acquisitions - Additional Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureEstimatedFairValuesOfAssetsAcquiredAndLiabilitiesAssumed" id="DisclosureEstimatedFairValuesOfAssetsAcquiredAndLiabilitiesAssumed">
<link:definition> 1054 - Disclosure - Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureUnauditedProFormaInformation" id="DisclosureUnauditedProFormaInformation">
<link:definition> 1055 - Disclosure - Unaudited Pro Forma Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureRestrictedCashAdditionalInformation" id="DisclosureRestrictedCashAdditionalInformation">
<link:definition> 1056 - Disclosure - Restricted Cash - Additional Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureInventories" id="DisclosureInventories">
<link:definition> 1057 - Disclosure - Inventories (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureInventoriesAdditionalInformation" id="DisclosureInventoriesAdditionalInformation">
<link:definition> 1058 - Disclosure - Inventories - Additional Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosurePropertyPlantAndEquipment" id="DisclosurePropertyPlantAndEquipment">
<link:definition> 1059 - Disclosure - Property Plant and Equipment (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentAdditionalInformation" id="DisclosurePropertyPlantAndEquipmentAdditionalInformation">
<link:definition> 1060 - Disclosure - Property Plant and Equipment - Additional Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureComponentsOfIntangibleAssets" id="DisclosureComponentsOfIntangibleAssets">
<link:definition> 1061 - Disclosure - Components of Intangible Assets (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureIntangibleAssetsAdditionalInformation" id="DisclosureIntangibleAssetsAdditionalInformation">
<link:definition> 1062 - Disclosure - Intangible Assets - Additional Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureEstimatedAmortizationExpense" id="DisclosureEstimatedAmortizationExpense">
<link:definition> 1063 - Disclosure - Estimated Amortization Expense (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureChangesInCarryingAmountOfGoodwill" id="DisclosureChangesInCarryingAmountOfGoodwill">
<link:definition> 1064 - Disclosure - Changes in Carrying Amount of Goodwill (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureGoodwillAdditionalInformation" id="DisclosureGoodwillAdditionalInformation">
<link:definition> 1065 - Disclosure - Goodwill - Additional Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureRestructuringAccrualActivitySummary" id="DisclosureRestructuringAccrualActivitySummary">
<link:definition> 1066 - Disclosure - Restructuring Accrual Activity Summary (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureRestructuringAndOtherChargesAdditionalInformation" id="DisclosureRestructuringAndOtherChargesAdditionalInformation">
<link:definition> 1067 - Disclosure - Restructuring and Other Charges - Additional Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureLongtermDebt" id="DisclosureLongtermDebt">
<link:definition> 1068 - Disclosure - Long-term debt (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosurePrincipalPaymentsOnDebt" id="DisclosurePrincipalPaymentsOnDebt">
<link:definition> 1069 - Disclosure - Principal Payments on Debt (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureDebtAdditionalInformation" id="DisclosureDebtAdditionalInformation">
<link:definition> 1070 - Disclosure - Debt - Additional Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureEmployeeBenefitsAdditionalInformation" id="DisclosureEmployeeBenefitsAdditionalInformation">
<link:definition> 1071 - Disclosure - Employee Benefits - Additional Information (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureAssumptionsUsedForRetirementBenefitPlans" id="DisclosureAssumptionsUsedForRetirementBenefitPlans">
<link:definition> 1072 - Disclosure - Assumptions Used for Retirement Benefit Plans (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureBenefitObligationsAndNetPeriodicBenefitCosts" id="DisclosureBenefitObligationsAndNetPeriodicBenefitCosts">
<link:definition> 1073 - Disclosure - Benefit Obligations and Net Periodic Benefit Costs (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureAmountsRecognizedInAccumulatedOtherComprehensiveIncomeloss" id="DisclosureAmountsRecognizedInAccumulatedOtherComprehensiveIncomeloss">
<link:definition> 1074 - Disclosure - Amounts Recognized in Accumulated Other Comprehensive Income (loss) (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType roleURI="http://www.ryerson.com/taxonomy/role/DisclosureAmountsRecognizedInOtherComprehensiveIncomeloss" id="DisclosureAmountsRecognizedInOtherComprehensiveIncomeloss">
<link:definition> 1075 - Disclosure - Amounts Recognized in Other Comprehensive Income (loss) (Detail) </link:definition>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:presentationLink </link:usedOn>
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<element name="PropertyPlantAndEquipmentUsefulLifeAndValuesAbstract" id="ck0000790528_PropertyPlantAndEquipmentUsefulLifeAndValuesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="ReclassificationsOutOfAccumulatedOtherComprehensiveIncomeLineItems" id="ck0000790528_ReclassificationsOutOfAccumulatedOtherComprehensiveIncomeLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="ReducedLineOfCreditFacilityCommitmentFeePercentage" id="ck0000790528_ReducedLineOfCreditFacilityCommitmentFeePercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="RestrictedCashFairValueDisclosure" id="ck0000790528_RestrictedCashFairValueDisclosure" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="RiskAdjustmentUltimateTrendRate" id="ck0000790528_RiskAdjustmentUltimateTrendRate" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="RyersonChinaMember" id="ck0000790528_RyersonChinaMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SalesInformationLineItems" id="ck0000790528_SalesInformationLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScenarioOneMember" id="ck0000790528_ScenarioOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScenarioTwoMember" id="ck0000790528_ScenarioTwoMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScheduleOfAccumulatedOtherComprehensiveIncomeLossByComponentTableTextBlock" id="ck0000790528_ScheduleOfAccumulatedOtherComprehensiveIncomeLossByComponentTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScheduleOfAccumulatedOtherComprehensiveIncomeLossNetOfTaxTable" id="ck0000790528_ScheduleOfAccumulatedOtherComprehensiveIncomeLossNetOfTaxTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
<element name="ScheduleOfCondensedConsolidatingBalanceSheetsLineItems" id="ck0000790528_ScheduleOfCondensedConsolidatingBalanceSheetsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScheduleOfCondensedConsolidatingBalanceSheetsTable" id="ck0000790528_ScheduleOfCondensedConsolidatingBalanceSheetsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
<element name="ScheduleOfCondensedConsolidatingStatementOfCashFlowsLineItems" id="ck0000790528_ScheduleOfCondensedConsolidatingStatementOfCashFlowsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScheduleOfCondensedConsolidatingStatementOfCashFlowsTable" id="ck0000790528_ScheduleOfCondensedConsolidatingStatementOfCashFlowsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
<element name="ScheduleOfCondensedConsolidatingStatementOfComprehensiveIncomeTable" id="ck0000790528_ScheduleOfCondensedConsolidatingStatementOfComprehensiveIncomeTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
<element name="ScheduleOfCondensedConsolidatingStatementOfIncomeAndComprehensiveIncomeLineItems" id="ck0000790528_ScheduleOfCondensedConsolidatingStatementOfIncomeAndComprehensiveIncomeLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScheduleOfDerivativesNotDesignatedAsHedgingInstrumentsGainLossInStatementOfFinancialPerformanceTableTextBlock" id="ck0000790528_ScheduleOfDerivativesNotDesignatedAsHedgingInstrumentsGainLossInStatementOfFinancialPerformanceTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScheduleOfEstimatedFutureAmortizationExpenseLineItems" id="ck0000790528_ScheduleOfEstimatedFutureAmortizationExpenseLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScheduleOfEstimatedFutureAmortizationExpenseTable" id="ck0000790528_ScheduleOfEstimatedFutureAmortizationExpenseTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
<element name="ScheduleOfInventoriesTable" id="ck0000790528_ScheduleOfInventoriesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
<element name="ScheduleOfPropertyPlantAndEquipmentTableTextBlock" id="ck0000790528_ScheduleOfPropertyPlantAndEquipmentTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ScheduleOfWeightedAverageAssetAllocationsByAssetCategoryTableTextBlock" id="ck0000790528_ScheduleOfWeightedAverageAssetAllocationsByAssetCategoryTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SfiGrayMember" id="ck0000790528_SfiGrayMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" id="ck0000790528_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="ShortTermForeignDebtMember" id="ck0000790528_ShortTermForeignDebtMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="SingerSteelCompanyMember" id="ck0000790528_SingerSteelCompanyMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="StainlessSteelFlatMember" id="ck0000790528_StainlessSteelFlatMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="StainlessSteelPlateMember" id="ck0000790528_StainlessSteelPlateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="SummaryOfAccountingAndFinancialPoliciesLineItems" id="ck0000790528_SummaryOfAccountingAndFinancialPoliciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="SupplementalFinancialInformationTable" id="ck0000790528_SupplementalFinancialInformationTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
<element name="TargetRangesAndAllocationsMember" id="ck0000790528_TargetRangesAndAllocationsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TenancyAndOtherCostsMember" id="ck0000790528_TenancyAndOtherCostsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TenantRelationshipsMember" id="ck0000790528_TenantRelationshipsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TurretSteelMember" id="ck0000790528_TurretSteelMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TwelvePercentSecuredNotesDueTwoThousandFifteenMember" id="ck0000790528_TwelvePercentSecuredNotesDueTwoThousandFifteenMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
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<element name="TwentySeventeenAndTwentyEighteenNotesMember" id="ck0000790528_TwentySeventeenAndTwentyEighteenNotesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="TwoThousandAndElevenRestructuringPlanMember" id="ck0000790528_TwoThousandAndElevenRestructuringPlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="UnitedStatesLargeCapitalMember" id="ck0000790528_UnitedStatesLargeCapitalMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="UnitedStatesSmallMidCapitalMember" id="ck0000790528_UnitedStatesSmallMidCapitalMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
<element name="UnrecognizedTaxBenefitsReductionsResultingFromSettlementsAndLapseOfApplicableStatuteOfLimitations" id="ck0000790528_UnrecognizedTaxBenefitsReductionsResultingFromSettlementsAndLapseOfApplicableStatuteOfLimitations" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
</schema>

2 Subsequent Filings that Reference this Filing

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

 7/24/13  SEC                               UPLOAD9/24/17    1:143K Ryerson Procurement Corp.
 7/11/13  SEC                               UPLOAD9/24/17    1:163K Ryerson Procurement Corp.
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