ASTM A815/A815M-07b
(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/A 960M. 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 A 960/A 960M, and they shall have pressure ratings compatible with . 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 .
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 – 07b
Standard Specification for
Wrought Ferritic, Ferritic/Austenitic, and Martensitic
1
Stainless Steel Piping Fittings
This standard is issued under the fixed designationA 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* be used independently of the other. Combining values from the
two systems may result in nonconformance with the specifi-
1.1 This specification covers two general classes, WP and
cation.
CR, of wrought ferritic, ferritic/austenitic, and martensitic
stainless steel fittings of seamless and welded construction
2. Referenced Documents
covered by the latest revision of Specification A 960/A 960M.
2
2.1 ASTM Standards:
Fittings differing from these standards may be furnished in
A 262 Practices for Detecting Susceptibility to Intergranu-
accordance with Supplementary Requirement S8.
lar Attack in Austenitic Stainless Steels
1.1.1 Class WP fittings are subdivided into four subclasses:
A 370 Test Methods and Definitions for MechanicalTesting
Classes WP-S, WP-W, WP-WX, and WP-WU. They are
of Steel Products
manufactured to the requirements of Specification A 960/
A 388/A 388M Practice for Ultrasonic Examination of
A 960M, and they shall have pressure ratings compatible with
Heavy Steel Forgings
12.2. Class WP-S fittings are those manufactured from seam-
A 751 Test Methods, Practices, and Terminology for
less product by a seamless method of manufacture (marked
Chemical Analysis of Steel Products
withclasssymbolWP-S);ClassWP-Wfittingsarethosewhich
A 763 Practices for Detecting Susceptibility to Intergranu-
contain welds where the fitting fabrication or construction
lar Attack in Ferritic Stainless Steels
welds have been radiographed (marked with class symbol
A 960/A 960M Specification for Common Requirements
WP-W); and Class WP-WX fittings are those which contain
for Wrought Steel Piping Fittings
welds where all welds have been radiographed (marked with
E 165 Test Method for Liquid Penetrant Examination
class symbol WP-WX); and Class WP-WU fittings are those
3
2.2 ASME Standards:
which contain welds where all welds have been ultrasonically
B16.9 Factory-Made Wrought Butt-Welding Fittings
tested (marked with class symbol WP-WU).
B16.11 Forged Fittings, Socket-Welding and Threaded
1.1.2 Class CR fittings are those manufactured to the
4
2.3 MSS Standards:
requirements of MSS SP-43, and they shall have pressure
MSS SP-43 Standard Practice for Light Weight Stainless
ratings compatible with 12.3.
Steel Butt-Welding Fittings
1.2 This specification does not apply to cast fittings.
MSS SP-79 Socket-Welding Reducer Inserts
1.3 Optional supplementary requirements are provided.
MSS SP-83 Steel Pipe Unions, Socket-Welding and
When desired, one or more of these may be specified in the
Threaded
order.
MSS SP-95 Swage(d) Nipples and Bull Plugs
1.4 This specification is expressed in both inch-pound units
3
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-
5
2.5 ASNT Standard:
rial 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
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
SI units are shown in brackets. The values stated in each
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
system are not exact equivalents; therefore, each system must
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
Available from American Society of Mechanical Engineers (ASME), ASME
International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, www.asme.org.
4
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
A01.22 on Steel Forgings andWrought Fittings for PipingApplications and Bolting Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-
Materials for Piping and Special Purpose Applications. hq.com.
5
Current edition approved Nov. 1, 2007. Published December 2007. Originally AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box
approved in 1983. Last previous edition approved in 2007 asA 815/A 815M – 07a. 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
*ASummary of Changes section appears
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:A815/A815M–07a Designation: A 815/A 815M – 07b
Standard Specification for
Wrought Ferritic, Ferritic/Austenitic, and Martensitic
1
Stainless Steel Piping Fittings
This standard is issued under the fixed designationA 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 (´) indicates an editorial change since the last revision or reapproval.
1. 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 SpecificationA 960/A 960M. 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
manufacturedtotherequirementsofSpecificationA 960/A 960M,andtheyshallhavepressureratingscompatiblewith12.2.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
beenradiographed(markedwithclasssymbolWP-WX);andClassWP-WUfittingsarethosewhichcontainweldswhereallwelds
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 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
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.
2. Referenced Documents
2
2.1 ASTM Standards:
A 262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 388/A 388M Practice for Ultrasonic Examination of Heavy Steel Forgings
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A 763 Practices for Detecting Susceptibility to Intergranular Attack in Ferritic Stainless Steels
A 960/A 960M Specification for Common Requirements for Wrought Steel Piping Fittings
E 165 Test Method for Liquid Penetrant Examination
3
2.2 ASME Standards:
B16.9Wrought Steel Butt-Welding Fittings Factory-Made Wrought Butt-Welding Fittings
B16.11 Forged Steel Fittings, Socket-Welding and Threaded
4
2.3 MSS Standards:
MSS SP-43 Standard Practice for Light Weight Stainless Steel Butt-Welding Fittings
MSS SP-79 Socket-Welding Reducer Inserts
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.22
on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.
Current edition approved Sept.Nov. 1, 2007. Published OctoberDecember 2007. Originally approved in 1983. Last previous edition approved in 2007 as
A 815/A 815M – 07a.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
www.asme.org.
4
Available from Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-hq.com.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM Inte
...
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