ASTM A350/A350M-02a

Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components

SCOPE
1.1 This specification covers several grades of carbon and low-alloy steel forged or ring-rolled flanges, forged fittings and valves intended primarily for low-temperature service and requiring notch toughness testing. They are made to specified dimensions, or to dimensional standards, such as the ASME and API Specifications referenced in Section 2. Although this specification covers some piping components machined from rolled bar and seamless tubular materials (see 5.3.3), it does not cover raw material produced in these product forms.
1.2 No limitation on size is intended beyond the ability of the manufacturer to obtain the specified requirements. However, Class 3 of Grade LF787 is only available in the quenched-and-precipitation heat treated condition.
1.3 Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified by the purchaser in the order.
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.
Note 1—Refer to Test Methods and Definitions A370 for notes on significance of notched-bar impact testing.

General Information

• Status: Historical
• Publication Date: 09-Jun-2002
• 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 A350/A350M-02 - Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components
• Effective Date: 10-Jun-2002
• Replaced By: ASTM A350/A350M-02b - Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components
• Effective Date: 10-Sep-2002
• Referred By: ASTM A727/A727M-14(2019) - Standard Specification for Carbon Steel Forgings for Piping Components with Inherent Notch Toughness
• Effective Date: 10-Jun-2002
• Referred By: ASTM A420/A420M-22 - Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
• Effective Date: 10-Jun-2002
• Referred By: ASTM A961/A961M-23 - Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
• Effective Date: 10-Jun-2002

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.
An American National Standard
Designation: A 350/A 350M – 02a
Standard Specification for
Carbon and Low-Alloy Steel Forgings, Requiring Notch
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Toughness Testing for Piping Components
This standard is issued under the fixed designation A 350/A 350M; 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 370 Test Methods and Definitions for Mechanical Testing
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2
of Steel Products
1.1 This specification covers several grades of carbon and
A 788 Specification for Steel Forgings, General Require-
low-alloy steel forged or ring-rolled flanges, forged fittings and
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ments
valves intended primarily for low-temperature service and
A 961 Specification for Common Requirements for Steel
requiring notch toughness testing. They are made to specified
Flanges, Forged Fittings, Valves, and Parts for Piping
dimensions, or to dimensional standards, such as the ASME
5
Applications
and API Specifications referenced in Section 2. Although this
2.2 ASME Standards:
specification covers some piping components machined from
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B 16.5 Steel Pipe Flanges and Flanged Fittings
rolled bar and seamless tubular materials (see 5.3.3), it does not
B 16.9 Factory-Made Wrought Steel Butt-Welding Fit-
cover raw material produced in these product forms.
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tings
1.2 No limitation on size is intended beyond the ability of
B 16.10 Face-to-Face and End-to-End Dimensions of Fer-
the manufacturer to obtain the specified requirements. How-
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rous Valves
ever, Class 3 of Grade LF787 is only available in the
B 16.11 Forged Steel Fittings, Socket-Welding and
quenched-and-precipitation heat treated condition.
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Threaded
1.3 Supplementary requirements are provided for use when
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B 16.30 Unfired Pressure Vessel Flange Dimensions
additional testing or inspection is desired. These shall apply
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B 16.34 Valves-Flanged, Threaded, and Welding End
only when specified by the purchaser in the order.
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B 16.47 Large Diameter Steel Flanges
1.4 This specification is expressed in both inch-pound units
2.3 ASME Boiler and Pressure Vessel Code:
and in SI units. However, unless the order specifies the
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Section IX Welding Qualifications
applicable “M” specification designation (SI units), the mate-
2.4 AWS Standards:
rial shall be furnished to inch-pound units.
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A 5.1 Mild Steel Covered Arc-Welding Electrodes
1.5 The values stated in either inch-pound units or SI units
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A 5.5 Low-Alloy Steel Covered Arc-Welding Electrodes
are to be regarded separately as standard. Within the text, the
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2.5 API Standards:
SI units are shown in brackets. The values stated in each
600 Steel Gate Valves with Flanged or Butt-Welding Ends
system are not exact equivalents; therefore, each system must
602 Compact Design Carbon Steel Gate Valves for Refinery
be used independently of the other. Combining values from the
Use
two systems may result in nonconformance with the specifi-
605 Large Diameter Carbon Steel Flanges
cation.
NOTE 1—Refer to Test Methods and Definitions A 370 for notes on 3. Ordering Information
significance of notched-bar impact testing.
3.1 It is the purchaser’s responsibility to specify in the
purchase order information necessary to purchase the needed
2. Referenced Documents
material. In addition to the ordering information guidelines in
2.1 ASTM Standards:
3
Annual Book of ASTM Standards, Vol 01.03.
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This specification is under the jurisdiction of ASTM Committee A01 on Steel, Annual Book of ASTM Standards, Vol 01.05.
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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 June 10, 2002. Published June 2002. Originally Available from American Welding Society, 550 LeJeune Rd., P.O. Box 351040,
published as A 350 – 52 T. Last previous edition A 350/A 350M – 02. Miami, FL 33135.
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For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from American Petroleum Institute, 1220 L Street N.W., Washington,
cation SA-350 in Section II of that Code. DC 20005.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superseded and replaced
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