ASTM A193/A193M-04a
(Specification)Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service
Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service
SCOPE
1.1 This specification covers alloy and stainless steel bolting material for pressure vessels, valves, flanges, and fittings for high-temperature service. 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 13.
1.4 Supplementary Requirements S1 through S10 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. Within the text, the SI units are shown in brackets. 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.
General Information
Relations
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 – 04a
Standard Specification for
Alloy-Steel and Stainless Steel Bolting Materials for High-
1
Temperature Service
This standard is issued under the fixed designation A 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 (e) 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—Corrections were made throughout editorially and the year date was changed on May 11, 2004.
1. Scope* applicable M specification designation (SI units), the material
2
shall be furnished to inch-pound units.
1.1 This specification covers alloy and stainless steel bolt-
1.6 The values stated in either inch-pound units or SI units
ing material for pressure vessels, valves, flanges, and fittings
are to be regarded separately as standard. Within the text, the
for high-temperature service. The term bolting material as used
SI units are shown in brackets. The values stated in each
in this specification covers bars, bolts, screws, studs, stud bolts,
system are not exact equivalents; therefore, each system must
and wire. Bars and wire shall be hot-wrought. The material
be used independently of the other. Combining values from the
may be further processed by centerless grinding or by cold
two systems may result in nonconformance with the specifi-
drawing. Austenitic stainless steel may be carbide solution
cation.
treated or carbide solution treated and strain-hardened. When
strain hardened austenitic steel is ordered, the purchaser should
2. Referenced Documents
take special care to ensure that Appendix X1 is thoroughly
3
2.1 ASTM Standards:
understood.
A 194/A 194M Specification for Carbon and Alloy Steel
1.2 Several grades are covered, including ferritic steels and
Nuts for Bolts for High-Pressure or High-Temperature
austenitic stainless steels designated B5, B8, and so forth.
Service, or Both
Selection will depend upon design, service conditions, me-
A 320/A 320M Specification for Alloy/Steel Bolting Mate-
chanical properties, and high-temperature characteristics.
rials for Low-Temperature Service
NOTE 1—The committee formulating this specification has included
A 354 Specification for Quenched and Tempered Alloy
fifteen steel types that have been rather extensively used for the present
Steel Bolts, Studs, and Other Externally Threaded Fasten-
purpose. Other compositions will be considered for inclusion by the
ers
committee from time to time as the need becomes apparent.
A 962/A 962M Specification for Common Requirements
NOTE 2—For grades of alloy-steel bolting material suitable for use at
for Steel Fasteners or Fastener Materials, or Both, Intended
the lower range of high-temperature applications, reference should be
made to Specification A 354.
for Use at Any Temperature from Cryogenic to the Creep
NOTE 3—For grades of alloy-steel bolting material suitable for use in
Range
low-temperature applications, reference should be made to Specification
E 18 Test Methods for Rockwell Hardness and Rockwell
A 320/A 320M.
Superficial Hardness of Metallic Materials
1.3 Nuts for use with this bolting material are covered in
E 21 Test Methods for Elevated Temperature Tension Tests
Section 13.
of Metallic Materials
1.4 Supplementary Requirements S1 through S10 are pro-
E 112 Test Methods for Determining Average Grain Size
vided for use when additional tests or inspection are desired.
E 139 Test Methods for Conducting Creep, Creep-Rupture,
These shall apply only when specified in the purchase order.
and Stress-Rupture Tests of Metallic Materials
1.5 This specification is expressed in both inch-pound units
E 150 Practice for Conducting Creep and Creep-Rupture
and in SI units. However, unless the order specifies the
Tension Tests of Metallic Materials Under Conditions of
4
Rapid Heating and Short Times
E 151 Practice for Tension Tests of Metallic Materials at
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.22 on Steel Forgings and Wrought Fittings for Piping Applications and Bolting
3
Materials for Piping and Special Purpose Applications. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 11, 2004. Published June 2004. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1936. Last previous edition approved in 2004 as A 193/A 193M-04. Standards volume information, refer to the standard’s Document Summary page on
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- the ASTM
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.