ASTM A815/A815M-01
(Specification)Standard Specification for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
Standard Specification for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
SCOPE
1.1 This specification covers two general classes, WP and CR, of wrought ferritic, ferritic/austenitic, and martensitic stainless steel fittings of seamless and welded construction covered by the latest revision of Specification A 960. Fittings differing from these standards may be furnished in accordance with Supplementary Requirement S8.
1.1.1 Class WP fittings are subdivided into four subclasses: Classes WP-S, WP-W, WP-WX, and WP-WU. They are manufactured to the requirements of Specification A960, and they shall have pressure ratings compatible with 12.2 . Class WP-S fittings are those manufactured from seamless product by a seamless method of manufacture (marked with class symbol WP-S); Class WP-W fittings are those which contain welds where the fitting fabrication or construction welds have been radiographed (marked with class symbol WP-W); and Class WP-WX fittings are those which contain welds where all welds have been radiographed (marked with class symbol WP-WX); and Class WP-WU fittings are those which contain welds where all welds have been ultrasonically tested (marked with class symbol WP-WU).
1.1.2 Class CR fittings are those manufactured to the requirements of MSS SP-43, and they shall have pressure ratings compatible with 12.3.
1.2 This specification does not apply to cast fittings.
1.3 Optional supplementary requirements are provided. When desired, one or more of these may be specified 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.
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Designation: A 815/A 815M – 01 An American National Standard
Standard Specification for
Wrought Ferritic, Ferritic/Austenitic, and Martensitic
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Stainless Steel Piping Fittings
This standard is issued under the fixed designation A 815/A 815M; 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.
1. Scope two systems may result in nonconformance with the specifi-
cation.
1.1 This specification covers two general classes, WP and
CR, of wrought ferritic, ferritic/austenitic, and martensitic
2. Referenced Documents
stainless steel fittings of seamless and welded construction
2.1 ASTM Standards:
covered by the latest revision of Specification A 960. Fittings
A 262 Practices for Detecting Susceptibility to Intergranu-
differing from these standards may be furnished in accordance
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lar Attack in Austenitic Stainless Steels
with Supplementary Requirement S8.
A 370 Test Methods and Definitions for Mechanical Testing
1.1.1 Class WP fittings are subdivided into four subclasses:
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of Steel Products
Classes WP-S, WP-W, WP-WX, and WP-WU. They are
A 388/A388M Practice for Ultrasonic Examination of
manufactured to the requirements of Specification A 960, and
3
Heavy Steel Forgings
they shall have pressure ratings compatible with 12.2. Class
A 751 Test Methods, Practices, and Terminology for
WP-S fittings are those manufactured from seamless product
2
Chemical Analysis of Steel Products
by a seamless method of manufacture (marked with class
A 763 Practices for Detecting Susceptibility to Intergranu-
symbol WP-S); Class WP-W fittings are those which contain
2
lar Attack in Ferritic Stainless Steels
welds where the fitting fabrication or construction welds have
A 960 Specification for Common Requirements for
been radiographed (marked with class symbol WP-W); and
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Wrought Steel Piping Fittings
Class WP-WX fittings are those which contain welds where all
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E 165 Test Method for Liquid Penetrant Examination
welds have been radiographed (marked with class symbol
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2.2 ASME Standards:
WP-WX); and Class WP-WU fittings are those which contain
B16.9 Wrought Steel Butt-Welding Fittings
welds where all welds have been ultrasonically tested (marked
B16.11 Forged Steel Fittings, Socket-Welding and Threaded
with class symbol WP-WU).
B16.28 Wrought Steel Butt-Welding Short Radius Elbows
1.1.2 Class CR fittings are those manufactured to the
and Returns
requirements of MSS SP-43, and they shall have pressure
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2.3 MSS Standards:
ratings compatible with 12.3.
SP-25 Standard Marking System for Valves, Fittings,
1.2 This specification does not apply to cast fittings.
Flanges, and Unions
1.3 Optional supplementary requirements are provided.
SP-43 Standard Practice for Light Weight Stainless Steel
When desired, one or more of these may be specified in the
Butt-Welding Fittings
order.
SP-79 Socket-Welding Reducer Inserts
1.4 This specification is expressed in both inch-pound units
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2.4 ASME Boiler and Pressure Vessel Codes:
and in SI units. However, unless the order specifies the
Section VIII Division I, Pressure Vessels
applicable “M” specification designation [SI units], the mate-
Section IX Welding Qualifications
rial shall be furnished to inch-pound units.
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2.5 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
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
be used independently of the other. Combining values from the 2
Annual Book of ASTM Standards, Vol 01.03.
3
Annual Book of ASTM Standards, Vol 01.05.
4
Annual Book of ASTM Standards, Vol 01.01.
5
Annual Book of ASTM Standards, Vol 03.03.
1 6
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Available from American Society of Mechanical Engineers, Three Park
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee Avenue, New York, NY 10016-5990.
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A01.22 on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Available from Manufacturers’ Standardization Society of the Valve and
Materials for Piping and Special Purpose Applications. Fittings Industry, 127 Park St., N.E., Vienna, VA 22180.
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Current edition approved Mar. 10, 2001. Published May 2001. Originally Available from American Society for Nondestructive Testing, 4153 Arlingate
published as A 815 – 83. Last previous edition A 815/A 815M – 00a. Plaza, P.O. Box 28518, Columbus, OH 43228-0518.
Copyright © ASTM, 100
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