ASTM A234/A234M-01

Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service

SCOPE
1.1 This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction covered by the latest revision of ASME B16.9, B16.11, B16.28, MSS SP-79, and MSS SP-95. These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures. Fittings differing from these ASME and MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A960.
1.2 Optional supplementary requirements are provided for fittings where a greater degree of examination is desired. When desired, one or more of these supplementary requirements may be specified in the order.
1.3 This specification does not cover cast welding fittings or fittings machined from castings. Cast steel welding fittings are governed by Specifications A216/A216M and A217/A217M.
1.4 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.
1.5 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

• Status: Historical
• Publication Date: 09-Dec-2001
• ICS: 23.040.40 - Metal fittings
• 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 A234/A234M-00a - Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
• Effective Date: 10-Dec-2001
• Referred By: ASTM F1548-01(2023) - Standard Specification for Performance of Fittings for Use with Gasketed Mechanical Couplings Used in Piping Applications
• Effective Date: 10-Dec-2001
• Referred By: ASTM A758/A758M-14(2019) - Standard Specification for Wrought-Carbon Steel Butt-Welding Piping Fittings with Improved Notch Toughness
• Effective Date: 10-Dec-2001
• Referred By: ASTM A960/A960M-23 - Standard Specification for Common Requirements for Wrought Steel Piping Fittings
• Effective Date: 10-Dec-2001
• Referred By: ASTM F1155-10(2019) - Standard Practice for Selection and Application of Piping System Materials
• Effective Date: 10-Dec-2001
• Referred By: ASTM F1387-23 - Standard Specification for Performance of Piping and Tubing Mechanically Attached Fittings
• Effective Date: 10-Dec-2001
• Referred By: ASTM F682-82a(2023) - Standard Specification for Wrought Carbon Steel Sleeve-Type Pipe Couplings
• Effective Date: 10-Dec-2001
• Referred By: ASTM C1847-21 - Standard Specification for Direct Buried Pre-Insulated and Jacketed Polyurethane Bonded Low Temperature Hot Water Piping Systems
• Effective Date: 10-Dec-2001
• Referred By: ASTM F1545-15a(2021) - Standard Specification for Plastic-Lined Ferrous Metal Pipe, Fittings, and Flanges
• Effective Date: 10-Dec-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Used in USDOE-NE Standards
Designation: A 234/A 234M – 01
An American National Standard
Standard Specification for
Piping Fittings of Wrought Carbon Steel and Alloy Steel for
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Moderate and High Temperature Service
This standard is issued under the fixed designation A 234/A 234M; 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.
1. Scope A 216/A 216M Specification for Steel Castings, Carbon,
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Suitable for Fusion Welding, for High-Temperature Ser-
1.1 This specification covers wrought carbon steel and
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vice
alloy steel fittings of seamless and welded construction covered
A 217/A 217M Specification for Steel Castings, Martensi-
by the latest revision of ASME B16.9, B16.11, B16.28, MSS
tic Stainless and Alloy, for Pressure-Containing Parts
SP-79, and MSS SP-95. These fittings are for use in pressure
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Suitable for High-Temperature Service
piping and in pressure vessel fabrication for service at moder-
A 960 Specification for Common Requirements for
ate and elevated temperatures. Fittings differing from these
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Wrought Steel Piping Fittings
ASME and MSS standards shall be furnished in accordance
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2.3 ASME Standards:
with Supplementary Requirement S58 of Specification A 960.
B16.9 Steel Butt-Welding Fittings
1.2 Optional supplementary requirements are provided for
B16.11 Forged Steel Fittings, Socket Welding and Threaded
fittings where a greater degree of examination is desired. When
B16.28 Wrought Steel Butt-Welding Short Radius Elbows
desired, one or more of these supplementary requirements may
and Returns
be specified in the order.
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2.4 ASME Boiler and Pressure Vessel Code:
1.3 This specification does not cover cast welding fittings or
Section V Nondestructive Examination
fittings machined from castings. Cast steel welding fittings are
Section VIII, Division 1, Pressure Vessels
governed by Specifications A 216/A 216M and A 217/
Section IX Welding Qualifications
A 217M.
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2.5 MSS Standards:
1.4 This specification is expressed in both inch-pound units
MSS SP-25 Standard Marking System for Valves, Fittings,
and in SI units. However, unless the order specifies the
Flanges, and Unions
applicable “M” specification designation (SI units), the mate-
MSS SP-79 Socket Welding Reducer Inserts
rial shall be furnished to inch-pound units.
MSS SP-95 Swage(d) Nipples and Bull Plugs
1.5 The values stated in either inch-pound units or SI units
2.6 ASNT Standard:
are to be regarded separately as standard. Within the text, the
SNT-TC-1A(1984) Recommended Practice for Nondestruc-
SI units are shown in brackets. The values stated in each
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tive Testing Personnel Qualification and Certification
system are not exact equivalents; therefore, each system must
be used independently of the other. Combining values from the
3. Ordering Information
two systems may result in nonconformance with the specifi-
3.1 See Specification A 960.
cation.
4. General Requirements
2. Referenced Documents
4.1 Product furnished to this specification shall conform to
2.1 In addition to those reference documents listed in
the requirements of Specification A 960, including any supple-
Specification A 960, the following list of standards apply to
mentary requirements that are indicated in the purchase order.
this specification.
Failure to comply with the requirements of Specification A 960
2.2 ASTM Standards:
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This specification is under the jurisdiction of ASTM Committee A01 on Steel, Annual Book of ASTM Standards, Vol 01.02.
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Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 01.01.
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A01.22 on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Available from ASME International, Three Park Avenue, New York, NY
Materials for Piping and Special Purpose Applications. 10016–5990.
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Current edition approved Sept. 10, 2001. Published November 2001. Originally Available from Manufacturers Standardization Society of the Valve and Fittings
published as A 234 – 40 T. Last previous edition A 234/A 234M – 00a. Industry, 1815 N. Fort Myer Drive, Arlington, VA 22209.
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For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from American Society for Nondestructive Testing, 4153 Arlingate
cation SA-234 in Section II of that Code. Plaza, Columbus, OH 43228-0518.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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A 234/A 234M
composition of the Grade in Table 1 a
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