ASTM A234/A234M-00a

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-00 - Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
• Effective Date: 10-Dec-2001
• Replaced By: ASTM A234/A234M-01 - 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 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
• 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

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.
Designation: A 234/A 234M – 00a Used in USDOE-NE Standards
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 Suitable for Fusion Welding, for High-Temperature Ser-
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vice
1.1 This specification covers wrought carbon steel and
A 217/A 217M Specification for Steel Castings, Martensi-
alloy steel fittings of seamless and welded construction covered
tic Stainless and Alloy, for Pressure-Containing Parts
by the latest revision of ASME B16.9, B16.11, B16.28, MSS
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Suitable for High-Temperature Service
SP-79, and MSS SP-95. These fittings are for use in pressure
A 960 Specification for Common Requirements for
piping and in pressure vessel fabrication for service at moder-
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Wrought Steel Piping Fittings
ate and elevated temperatures. Fittings differing from these
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2.3 ASME Standards:
ASME and MSS standards shall be furnished in accordance
B16.9 Steel Butt-Welding Fittings
with Supplementary Requirement S58 of Specification A 960.
B16.11 Forged Steel Fittings, Socket Welding and Threaded
1.2 Optional supplementary requirements are provided for
B16.28 Wrought Steel Butt-Welding Short Radius Elbows
fittings where a greater degree of examination is desired. When
and Returns
desired, one or more of these supplementary requirements may
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2.4 ASME Boiler and Pressure Vessel Code:
be specified in the order.
Section V Nondestructive Examination
1.3 This specification does not cover cast welding fittings or
Section VIII, Division 1, Pressure Vessels
fittings machined from castings. Cast steel welding fittings are
Section IX Welding Qualifications
governed by Specifications A 216/A 216M and A 217/
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2.5 MSS Standards:
A 217M.
MSS SP-25 Standard Marking System for Valves, Fittings,
1.4 This specification is expressed in both inch-pound units
Flanges, and Unions
and in SI units. However, unless the order specifies the
MSS SP-79 Socket Welding Reducer Inserts
applicable “M” specification designation (SI units), the mate-
MSS SP-95 Swage(d) Nipples and Bull Plugs
rial shall be furnished to inch-pound units.
2.6 ASNT Standard:
1.5 The values stated in either inch-pound units or SI units
SNT-TC-1A(1984) Recommended Practice for Nondestruc-
are to be regarded separately as standard. Within the text, the
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tive Testing Personnel Qualification and Certification
SI units are shown in brackets. The values stated in each
system are not exact equivalents; therefore, each system must
3. Ordering Information
be used independently of the other. Combining values from the
3.1 See Specification A 960.
two systems may result in nonconformance with the specifi-
cation.
4. General Requirements
4.1 Product furnished to this specification shall conform to
2. Referenced Documents
the requirements of Specification A 960, including any supple-
2.1 In addition to those reference documents listed in
mentary requirements that are indicated in the purchase order.
Specification A 960, the following list of standards apply to
Failure to comply with the requirements of Specification A 960
this specification.
constitutes non-conformance with this specification. In case of
2.2 ASTM Standards:
a conflict between the requirements of this specification and
A 216/A 216M Specification for Steel Castings, Carbon,
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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 Dec. 10, 2000. Published March 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 – 00. 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, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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