ASTM A193/A193M-08a

Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials 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 specification covers alloy and stainless steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications. The term  bolting material as used in this specification covers bars, bolts, screws, studs, stud bolts, and wire. Bars and wire shall be hot-wrought. The material 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.
Note 1—The committee formulating this specification has included fifteen 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 material suitable for use at the lower range of high temperature applications, reference should be made to Specification A 354.
Note 3—For grades of alloy-steel bolting material suitable for use in low temperature applications, reference should be made to Specification A 320/A 320M.
1.3 Nuts for use with this bolting material are covered in Section 14.  
1.4 Supplementary Requirements S1 through S14 are provided for use when additional tests or inspection are desired. These shall apply only when specified in the purchase order.  
1.5 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable M specification designation (SI units), the material shall be furnished to inch-pound units.  
1.6 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. Within the text, the SI units are shown in brackets.

General Information

• Status: Historical
• Publication Date: 30-Apr-2008
• 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-08 - Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special Purpose Applications
• Effective Date: 01-May-2008
• Replaced By: ASTM A193/A193M-08b - Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special Purpose Applications
• Effective Date: 01-Aug-2008
• Referred By: ASTM C852/C852M-17(2022) - Standard Guide for Design Criteria for Plutonium Gloveboxes
• Effective Date: 01-May-2008
• Referred By: ASTM F1565-00(2019) - Standard Specification for Pressure-Reducing Valves for Steam Service
• Effective Date: 01-May-2008
• Referred By: ASTM F2798-09(2023) - Standard Specification for Sealless Lube Oil Pump with Oil Through Motor for Marine Applications
• Effective Date: 01-May-2008
• Referred By: ASTM A962/A962M-23a - Standard Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range
• Effective Date: 01-May-2008
• 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: 01-May-2008
• Referred By: ASTM F1718-01(2019) - Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps
• Effective Date: 01-May-2008
• Referred By: ASTM F1370-92(2019)e1 - Standard Specification for Pressure-Reducing Valves for Water Systems, Shipboard
• Effective Date: 01-May-2008
• Referred By: ASTM F38-18 - Standard Test Methods for Creep Relaxation of a Gasket Material
• Effective Date: 01-May-2008
• Referred By: ASTM C1725-17(2022) - Standard Guide for Hot Cell Specialized Support Equipment and Tools
• Effective Date: 01-May-2008
• Referred By: ASTM F2716-08(2020) - Standard Practice for Comparison of Nonmetallic Flat Gaskets in High Pressure Saturated Steam
• Effective Date: 01-May-2008
• Referred By: ASTM F1276-23 - Standard Test Method for Creep Relaxation of Laminated Composite Gasket Materials
• Effective Date: 01-May-2008
• Referred By: ASTM F3394/F3394M-20 - Standard Specification for Hardened Steel Backup and Reaction Washers Inch and Metric Dimensions<rangeref></rangeref >
• Effective Date: 01-May-2008
• Referred By: ASTM F1508-96(2021) - Standard Specification for Angle Style, Pressure Relief Valves for Steam, Gas, and Liquid Services
• Effective Date: 01-May-2008

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: A 193/A 193M – 08a
Standard Specification for
Alloy-Steel and Stainless Steel Bolting Materials for High
Temperature or High Pressure Service and Other Special
1
Purpose Applications
This standard is issued under the fixed designationA 193/A 193M; 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.
1. Scope* 1.5 This specification is expressed in both inch-pound units
2
and in SI units. However, unless the order specifies the
1.1 This specification covers alloy and stainless steel bolt-
applicable M specification designation (SI units), the material
ing material for pressure vessels, valves, flanges, and fittings
shall be furnished to inch-pound units.
for high temperature or high pressure service, or other special
1.6 The values stated in either inch-pound units or SI units
purpose applications. The term bolting material as used in this
are to be regarded separately as standard. The values stated in
specification covers bars, bolts, screws, studs, stud bolts, and
each system are not exact equivalents; therefore, each system
wire. Bars and wire shall be hot-wrought. The material may be
must be used independently of the other. Combining values
further processed by centerless grinding or by cold drawing.
from the two systems may result in nonconformance with the
Austenitic stainless steel may be carbide solution treated or
specification. Within the text, the SI units are shown in
carbide solution treated and strain-hardened. When strain
brackets.
hardened austenitic steel is ordered, the purchaser should take
special care to ensure that Appendix X1 is thoroughly under-
2. Referenced Documents
stood.
3
2.1 ASTM Standards:
1.2 Several grades are covered, including ferritic steels and
A 153/A 153M Specification for Zinc Coating (Hot-Dip) on
austenitic stainless steels designated B5, B8, and so forth.
Iron and Steel Hardware
Selection will depend upon design, service conditions, me-
A 194/A 194M Specification for Carbon and Alloy Steel
chanical properties, and high temperature characteristics.
Nuts for Bolts for High Pressure or High Temperature
NOTE 1—The committee formulating this specification has included
Service, or Both
fifteen steel types that have been rather extensively used for the present
A 320/A 320M Specification for Alloy-Steel and Stainless
purpose. Other compositions will be considered for inclusion by the
Steel Bolting Materials for Low-Temperature Service
committee from time to time as the need becomes apparent.
A 354 Specification for Quenched and Tempered Alloy
NOTE 2—For grades of alloy-steel bolting material suitable for use at
Steel Bolts, Studs, and Other Externally Threaded Fasten-
the lower range of high temperature applications, reference should be
made to Specification A 354. ers
NOTE 3—For grades of alloy-steel bolting material suitable for use in
A 788/A 788M Specification for Steel Forgings, General
low temperature applications, reference should be made to Specification
Requirements
A 320/A 320M.
A 962/A 962M Specification for Common Requirements
1.3 Nuts for use with this bolting material are covered in
forSteelFastenersorFastenerMaterials,orBoth,Intended
Section 14.
for Use at Any Temperature from Cryogenic to the Creep
1.4 Supplementary Requirements S1 through S14 are pro-
Range
vided for use when additional tests or inspection are desired.
B 695 Specification for Coatings of Zinc Mechanically
These shall apply only when specified in the purchase order.
Deposited on Iron and Steel
B 696 SpecificationforCoatingsofCadmiumMechanically
Deposited
B 766 Specification for Electrodeposited Coatings of Cad-
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
mium
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.22 on Steel Forgings andWrought Fittings for PipingApplications and Bolting
Materials for Piping and Special Purpose Applications.
Current edition approved May 1, 2008. Published June 2008. Originally
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approved in 1936. Last previous edition approved in 2008 as A 193/A 193M-08.
2
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
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.
Copyright © ASTM International, 100 Barr H
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:A193/A193M–08 Designation: A 193/A 193M – 08a
Standard Specification for
Alloy-Steel and Stainless Steel Bolting Materials for High
Temperature or High Pressure Service and Other Special
1
Purpose Applications
This standard is issued under the fixed designationA 193/A 193M; 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.
1. Scope*
2
1.1 This specification covers alloy and stainless steel bolting material for pressure vessels, valves, flanges, and fittings for high
temperature or high pressure service, or other special purpose applications. The term bolting material as used in this specification
covers bars, bolts, screws, studs, stud bolts, and wire. Bars and wire shall be hot-wrought. The material 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.
NOTE 1—The committee formulating this specification has included fifteen 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 material suitable for use at the lower range of high temperature applications, reference should be made to
Specification A 354.
NOTE 3—For grades of alloy-steel bolting material suitable for use in low temperature applications, reference should be made to Specification
A 320/A 320M.
1.3 Nuts for use with this bolting material are covered in Section 14.
1.4 SupplementaryRequirementsS1throughS10S14areprovidedforusewhenadditionaltestsorinspectionaredesired.These
shall apply only when specified in the purchase order.
1.5 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable
M specification designation (SI units), the material shall be furnished to inch-pound units.
1.6 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each
system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two
systems may result in nonconformance with the specification. Within the text, the SI units are shown in brackets.
2. Referenced Documents
3
2.1 ASTM Standards:
A 153/A 153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A 194/A 194M SpecificationforCarbonandAlloySteelNutsforBoltsforHighPressureorHighTemperatureService,orBoth
A 320/A 320M Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service
A 354 Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
A 788/A 788M Specification for Steel Forgings, General Requirements
A 962/A 962M Specification for Common Requirements for Steel Fasteners or Fastener Materials, or Both, Intended for Use
at Any Temperature from Cryogenic to the Creep Range
B 695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
B 696 Specification for Coatings of Cadmium Mechanically Deposited
B 766 Specification for Electrodeposited Coatings of Cadmium
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.22
on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.
Current edition approvedAprilMay 1, 2008. Published MayJune 2008. Originally approved in 1936. Last previous edition approved in 20072008 asA 193/A 193M-078.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-193 in Section II of that Code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or con
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:A 193/A 193M–08 Designation: A 193/A 193M – 08a
Standard Specification for
Alloy-Steel and Stainless Steel Bolting Materials for High
Temperature or High Pressure Service and Other Special
1
Purpose Applications
This standard is issued under the fixed designationA 193/A 193M; 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 (ϵ) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
2
1.1 This specification covers alloy and stainless steel bolting material for pressure vessels, valves, flanges, and fittings for high
temperature or high pressure service, or other special purpose applications. The term bolting material as used in this specification
covers bars, bolts, screws, studs, stud bolts, and wire. Bars and wire shall be hot-wrought. The material 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.
NOTE 1—The committee formulating this specification has included fifteen 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 material suitable for use at the lower range of high temperature applications, reference should be made to
Specification A 354A354.
NOTE 3—For grades of alloy-steel bolting material suitable for use in low temperature applications, reference should be made to Specification
A 320/A 320MA320/A320M.
1.3 Nuts for use with this bolting material are covered in Section 14.
1.4 SupplementaryRequirementsS1throughS10S14areprovidedforusewhenadditionaltestsorinspectionaredesired.These
shall apply only when specified in the purchase order.
1.5 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable
M specification designation (SI units), the material shall be furnished to inch-pound units.
1.6 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each
system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two
systems may result in nonconformance with the specification. Within the text, the SI units are shown in brackets.
2. Referenced Documents
3
2.1 ASTM Standards:
A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A194/A194M Specification for Carbon andAlloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
A320/A320M Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
A354 Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
A788/A788M Specification for Steel Forgings, General Requirements
A962/A962M SpecificationforCommonRequirementsforBoltingIntendedforUseatAnyTemperaturefromCryogenictothe
Creep Range
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
B696 Specification for Coatings of Cadmium Mechanically Deposited
B766 Specification for Electrodeposited Coatings of Cadmium
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.22
on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.
Current edition approvedAprilMay 1, 2008. Published MayJune 2008. Originally approved in 1936. Last previous edition approved in 20072008 asA 193/A 193M-078.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-193 in Section II of that Code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail].
...