ASTM A193/A193M-12b

Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications

ABSTRACT
This specification covers alloy steel and stainless steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications. Ferritic steels shall be properly heat treated as best suits the high temperature characteristics of each grade. Immediately after rolling or forging, the bolting material shall be allowed to cool to a temperature below the cooling transformation range. The chemical composition requirements for each alloy are presented in details. The steel shall not contain an unspecified element for ordered grade to the extent that the steel conforms to the requirements of another grade for which that element is a specified element. The tensile property and hardness property requirements are discussed, the tensile property requirement is highlighted by a full size fasteners, wedge tensile testing.
SCOPE
1.1 This specification2 covers alloy and stainless steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications. See Specification A962/A962M for the definition of bolting. Bars and wire shall be hot-wrought and may be further processed by centerless grinding or by cold drawing. Austenitic stainless steel may be carbide solution treated or carbide solution treated and strain-hardened. When strain hardened austenitic steel is ordered, the purchaser should take special care to ensure that Appendix X1 is thoroughly understood.  
1.2 Several grades are covered, including ferritic steels and austenitic stainless steels designated B5, B8, and so forth. Selection will depend upon design, service conditions, mechanical properties, and high temperature characteristics.  
1.3 The following referenced general requirements are indispensable for application of this specification: Specification A962/A962M.Note 1—The committee formulating this specification has included several steel types that have been rather extensively used for the present purpose. Other compositions will be considered for inclusion by the committee from time to time as the need becomes apparent.Note 2—For grades of alloy-steel bolting suitable for use at the lower range of high temperature applications, reference should be made to Specification A354.Note 3—For grades of alloy-steel bolting suitable for use in low temperature applications, reference should be made to Specification A320/A320M.  
1.4 Nuts for use with bolting are covered in Section 13.  
1.5 Supplementary Requirements are provided for use at the option of the purchaser. The supplementary requirements shall apply only when specified in the purchase order or contract.  
1.6 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply.  
1.7 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

General Information

• Status: Historical
• Publication Date: 07-Aug-2012
• ICS: 21.060.01 - Fasteners in general
• ICS: 77.080.20 - Steels
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.22 - Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications

Relations

• Replaces: ASTM A193/A193M-12 - Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
• Effective Date: 08-Aug-2012
• Replaced By: ASTM A193/A193M-14 - Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
• Effective Date: 01-Jun-2014
• Referred By: ASTM F38-18 - Standard Test Methods for Creep Relaxation of a Gasket Material
• Effective Date: 08-Aug-2012
• Referred By: ASTM F3394/F3394M-20 - Standard Specification for Hardened Steel Backup and Reaction Washers Inch and Metric Dimensions<rangeref></rangeref >
• Effective Date: 08-Aug-2012
• Referred By: ASTM F1370-92(2019)e1 - Standard Specification for Pressure-Reducing Valves for Water Systems, Shipboard
• Effective Date: 08-Aug-2012
• Referred By: ASTM F2798-09(2023) - Standard Specification for Sealless Lube Oil Pump with Oil Through Motor for Marine Applications
• Effective Date: 08-Aug-2012
• Referred By: ASTM F2716-08(2020) - Standard Practice for Comparison of Nonmetallic Flat Gaskets in High Pressure Saturated Steam
• Effective Date: 08-Aug-2012
• Referred By: ASTM A354-17e2 - Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
• Effective Date: 08-Aug-2012
• Referred By: ASTM F1718-01(2019) - Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps
• Effective Date: 08-Aug-2012
• Referred By: ASTM F1565-00(2019) - Standard Specification for Pressure-Reducing Valves for Steam Service
• Effective Date: 08-Aug-2012
• Referred By: ASTM C1533-15(2022) - Standard Guide for General Design Considerations for Hot Cell Equipment
• Effective Date: 08-Aug-2012
• Referred By: ASTM F998-12(2022) - Standard Specification for Centrifugal Pump, Shipboard Use
• Effective Date: 08-Aug-2012
• Referred By: ASTM C852/C852M-17(2022) - Standard Guide for Design Criteria for Plutonium Gloveboxes
• Effective Date: 08-Aug-2012
• Referred By: ASTM F1510-21 - Standard Specification for Rotary Positive Displacement Pumps, Ships Use
• Effective Date: 08-Aug-2012
• Referred By: ASTM F2437/F2437M-17 - Standard Specification for Carbon and Alloy Steel Compressible-Washer-Type Direct Tension Indicators for Use with Cap Screws, Bolts, Anchors, and Studs
• Effective Date: 08-Aug-2012

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:A193/A193M −12b
StandardSpecification for
Alloy-Steel and Stainless Steel Bolting for High Temperature
or High Pressure Service and Other Special Purpose
1
Applications
This standard is issued under the fixed designationA193/A193M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
Note—Table 1 was corrected editorially and the year date changed on August 8, 2012.
1. Scope* 1.5 SupplementaryRequirementsareprovidedforuseatthe
2 option of the purchaser. The supplementary requirements shall
1.1 This specification covers alloy and stainless steel bolt-
apply only when specified in the purchase order or contract.
ing for pressure vessels, valves, flanges, and fittings for high
temperature or high pressure service, or other special purpose 1.6 This specification is expressed in both inch-pound units
applications. See Specification A962/A962M for the definition and in SI units; however, unless the purchase order or contract
of bolting. Bars and wire shall be hot-wrought and may be specifies the applicable M specification designation (SI units),
further processed by centerless grinding or by cold drawing. the inch-pound units shall apply.
Austenitic stainless steel may be carbide solution treated or
1.7 The values stated in either SI units or inch-pound units
carbide solution treated and strain-hardened. When strain
are to be regarded separately as standard. Within the text, the
hardened austenitic steel is ordered, the purchaser should take
SI units are shown in brackets. The values stated in each
special care to ensure that Appendix X1 is thoroughly under-
system may not be exact equivalents; therefore, each system
stood.
shall be used independently of the other. Combining values
1.2 Several grades are covered, including ferritic steels and from the two systems may result in non-conformance with the
austenitic stainless steels designated B5, B8, and so forth. standard.
Selection will depend upon design, service conditions, me-
2. Referenced Documents
chanical properties, and high temperature characteristics.
3
2.1 ASTM Standards:
1.3 The following referenced general requirements are in-
A153/A153M Specification for Zinc Coating (Hot-Dip) on
dispensable for application of this specification: Specification
Iron and Steel Hardware
A962/A962M.
A194/A194M Specification for Carbon andAlloy Steel Nuts
NOTE 1—The committee formulating this specification has included
several steel types that have been rather extensively used for the present for Bolts for High Pressure or High Temperature Service,
purpose. Other compositions will be considered for inclusion by the
or Both
committee from time to time as the need becomes apparent.
A320/A320M Specification for Alloy-Steel and Stainless
NOTE 2—For grades of alloy-steel bolting suitable for use at the lower
Steel Bolting for Low-Temperature Service
range of high temperature applications, reference should be made to
A354 Specification for Quenched and TemperedAlloy Steel
Specification A354.
NOTE 3—For grades of alloy-steel bolting suitable for use in low
Bolts, Studs, and Other Externally Threaded Fasteners
temperature applications, reference should be made to Specification
A788/A788M Specification for Steel Forgings, General Re-
A320/A320M.
quirements
1.4 Nuts for use with bolting are covered in Section 13.
A962/A962M Specification for Common Requirements for
Bolting Intended for Use at Any Temperature from Cryo-
genic to the Creep Range
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
B633 Specification for Electrodeposited Coatings of Zinc on
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
Iron and Steel
A01.22 on Steel Forgings andWrought Fittings for PipingApplications and Bolting
Materials for Piping and Special Purpose Applications.
Current edition approved Aug. 8, 2012. Published August 2012. Originally
3
approved in 1936. Last previous edition approved in 2012 as A193/A193M–12a. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
DOI: 10.1520/A0193_A0193M-12b. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SA-193 in Section II of that Code. the ASTM website.
*A Summary of Changes section appears at the end of this standard
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