ASTM A815/A815M-14
(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
ABSTRACT
This specification covers two general classes, WP and CR, of wrought ferritic, ferritic/austenitic, and martensitic stainless steel fittings of seamless and welded construction. Class WP fittings are subdivided into four subclasses: Classes WP-S, WP-W, WP-WX, and WP-WU. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. The steel shall be melted by electric furnace, vacuum furnace, or electric furnace followed by vacuum or electroslag-consumable remelting. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining or by combination of two or more of these operations. The materials shall undergo heat treatment and shall follow the required cooling process and tempering temperature. Chemical and product analyses shall be performed and shall conform to the required chemical composition in carbon, manganese, phosphorus, silicon, sulfur, nickel, chromium, molybdenum, copper, nitrogen, and titanium. The mechanical properties of the fitting material shall conform to the required values in yield strength, tensile strength, elongation, and hardness.
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 A960/A960M. Fittings differing from these standards may be furnished in accordance with Supplementary Requirement S58 of Specification A960/A960M.
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/A960M, and they shall have pressure ratings compatible with 13.2. 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 13.3.
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 SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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Designation:A815/A815M −14
StandardSpecification for
Wrought Ferritic, Ferritic/Austenitic, and Martensitic
1
Stainless Steel Piping Fittings
This standard is issued under the fixed designationA815/A815M; 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* 1.5 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. Within the text, the
1.1 This specification covers two general classes, WP and
SI units are shown in brackets. The values stated in each
CR, of wrought ferritic, ferritic/austenitic, and martensitic
system may not be exact equivalents; therefore, each system
stainless steel fittings of seamless and welded construction
shall be used independently of the other. Combining values
covered by the latest revision of Specification A960/A960M.
from the two systems may result in non-conformance with the
Fittings differing from these standards may be furnished in
standard.
accordance with Supplementary Requirement S58 of Specifi-
cation A960/A960M.
2. Referenced Documents
1.1.1 Class WP fittings are subdivided into four subclasses:
2
2.1 ASTM Standards:
Classes WP-S, WP-W, WP-WX, and WP-WU. They are
A262 Practices for Detecting Susceptibility to Intergranular
manufactured to the requirements of Specification A960/
Attack in Austenitic Stainless Steels
A960M, and they shall have pressure ratings compatible with
A388/A388M Practice for Ultrasonic Examination of Steel
13.2. Class WP-S fittings are those manufactured from seam-
Forgings
less product by a seamless method of manufacture (marked
A751 Test Methods, Practices, and Terminology for Chemi-
withclasssymbolWP-S);ClassWP-Wfittingsarethosewhich
cal Analysis of Steel Products
contain welds where the fitting fabrication or construction
A763 Practices for Detecting Susceptibility to Intergranular
welds have been radiographed (marked with class symbol
Attack in Ferritic Stainless Steels
WP-W); and Class WP-WX fittings are those which contain
A923 Test Methods for Detecting Detrimental Intermetallic
welds where all welds have been radiographed (marked with
Phase in Duplex Austenitic/Ferritic Stainless Steels
class symbol WP-WX); and Class WP-WU fittings are those
A960/A960M Specification for Common Requirements for
which contain welds where all welds have been ultrasonically
Wrought Steel Piping Fittings
tested (marked with class symbol WP-WU).
E165 Practice for Liquid Penetrant Examination for General
1.1.2 Class CR fittings are those manufactured to the
Industry
requirements of MSS SP-43, and they shall have pressure
3
2.2 ASME Standards:
ratings compatible with 13.3.
B16.9 Factory-Made Wrought Butt-Welding Fittings
1.2 This specification does not apply to cast fittings.
B16.11 Forged Fittings, Socket-Welding and Threaded
4
2.3 MSS Standards:
1.3 Optional supplementary requirements are provided.
MSS SP-43 Standard Practice for Light Weight Stainless
When desired, one or more of these may be specified in the
Steel Butt-Welding Fittings
order.
MSS SP-79 Socket-Welding Reducer Inserts
1.4 This specification is expressed in both inch-pound units
MSS SP-83 Steel Pipe Unions, Socket-Welding and
and in SI units. However, unless the order specifies the
Threaded
applicable “M” specification designation [SI units], the mate-
rial shall be furnished to inch-pound units.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel, the ASTM website.
3
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee Available from American Society of Mechanical Engineers (ASME), ASME
A01.22 on Steel Forgings andWrought Fittings for PipingApplications and Bolting International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
Materials for Piping and Special Purpose Applications. www.asme.org.
4
Current edition approved Oct. 1, 2014. Published October 2014. Originally AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
approved in 1983. Last previous edition approved in 2013 as A815/A815M–13a. Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-
DOI: 10.1520/A0815_A0815M-14. hq.com.
*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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A815/A81
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This document is not an ASTM standard and is intended only to provide the user of an ASTM 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 − 13a A815/A815M − 14
Standard Specification for
Wrought Ferritic, Ferritic/Austenitic, and Martensitic
1
Stainless Steel Piping Fittings
This standard is issued under the fixed designation A815/A815M; 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 Specification A960/A960M. Fittings differing
from these standards may be furnished in accordance with Supplementary Requirement S58 of Specification A960/A960M.
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/A960M, and they shall have pressure ratings compatible with 12.213.2.
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 12.313.3.
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 SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units
are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with the standard.
2. Referenced Documents
2
2.1 ASTM Standards:
A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A388/A388M Practice for Ultrasonic Examination of Steel Forgings
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A763 Practices for Detecting Susceptibility to Intergranular Attack in Ferritic Stainless Steels
A923 Test Methods for Detecting Detrimental Intermetallic Phase in Duplex Austenitic/Ferritic Stainless Steels
A960/A960M Specification for Common Requirements for Wrought Steel Piping Fittings
E165 Practice for Liquid Penetrant Examination for General Industry
3
2.2 ASME Standards:
B16.9 Factory-Made Wrought Butt-Welding Fittings
B16.11 Forged Fittings, Socket-Welding and Threaded
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.22
on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.
Current edition approved Nov. 1, 2013Oct. 1, 2014. Published November 2013October 2014. Originally approved in 1983. Last previous edition approved in 2013 as
A815/A815M–13.–13a. DOI: 10.1520/A0815_A0815M-13A.10.1520/A0815_A0815M-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 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, ThreeTwo Park Ave., New York, NY 10016-5990,
http://www.asme.org.
*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
1
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