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ASTM A403 - 79 Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

Abbreviation
ASTM A403 - 79
Valid from
27/07/1979

Information provider
IHS Markit
Author
American Society of Testing and Materials
Information type
ASTM Standard
Format
PDF


Description

This specification2 covers two general classes. WP and CR. of wrought austenitic stainless steel fittings of seamless and welded construction covered by the latest revision of ANSI B 16.9, ANSI B 16.11. ANSI B 16.28, MSS Standard Practice SP-79 and MSS Standard Practice SP-43. Fittings differing from these standards may be furnished in accordance with Supplementary Requirement S9. 

Class WP fittings are subdivided into three subclasses: Classes WP-S, WP-W. and WPWX. They are manufactured to the requirements of ANSI BI6.9, BI6.11, BI6.28, or MSS Standard Practice SP-79, and they shalI have pressure ratings compatible with 9.2. 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 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 alI welds have been radiographed (marked with class symbol WP-WX). 

Class CR fittings are those manufactured to the requirements of MSS SP-43, and they shaH have pressure ratings compatible with 9.3. 

This specification does not apply to cast fittings. Cast austenitic-steel piping fittings are covered by Specifications A 351, A 743, and A 744. 

Optional supplementary requirements are provided. When desired, one or more may be specified in the order. 

The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate. 

2For ASME Boiler and Pressure Vessel Code applications see related Specification SA-403 in Section II of that Code.

For assistance with locating previous versions, please contact the information provider.
Notes/comments

ANSI B16.11-1980 cites ANSI/ASTM A403-78, which is not currently available online. We have provided you with a link to this more recent version for your information only.

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For assistance with locating previous versions, please contact the information provider.

ANSI B16.11-1980 cites ANSI/ASTM A403-78, which is not currently available online. We have provided you with a link to this more recent version for your information only.

This resource is cited by:

ASTM A403 - 79 Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

This document is CITED BY:

ASTM A403 - 79 Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

Description

This specification2 covers two general classes. WP and CR. of wrought austenitic stainless steel fittings of seamless and welded construction covered by the latest revision of ANSI B 16.9, ANSI B 16.11. ANSI B 16.28, MSS Standard Practice SP-79 and MSS Standard Practice SP-43. Fittings differing from these standards may be furnished in accordance with Supplementary Requirement S9. 

Class WP fittings are subdivided into three subclasses: Classes WP-S, WP-W. and WPWX. They are manufactured to the requirements of ANSI BI6.9, BI6.11, BI6.28, or MSS Standard Practice SP-79, and they shalI have pressure ratings compatible with 9.2. 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 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 alI welds have been radiographed (marked with class symbol WP-WX). 

Class CR fittings are those manufactured to the requirements of MSS SP-43, and they shaH have pressure ratings compatible with 9.3. 

This specification does not apply to cast fittings. Cast austenitic-steel piping fittings are covered by Specifications A 351, A 743, and A 744. 

Optional supplementary requirements are provided. When desired, one or more may be specified in the order. 

The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate. 

2For ASME Boiler and Pressure Vessel Code applications see related Specification SA-403 in Section II of that Code.

View on Information Provider website
ASTM A403 - 79 Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
Description

This specification2 covers two general classes. WP and CR. of wrought austenitic stainless steel fittings of seamless and welded construction covered by the latest revision of ANSI B 16.9, ANSI B 16.11. ANSI B 16.28, MSS Standard Practice SP-79 and MSS Standard Practice SP-43. Fittings differing from these standards may be furnished in accordance with Supplementary Requirement S9. 

Class WP fittings are subdivided into three subclasses: Classes WP-S, WP-W. and WPWX. They are manufactured to the requirements of ANSI BI6.9, BI6.11, BI6.28, or MSS Standard Practice SP-79, and they shalI have pressure ratings compatible with 9.2. 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 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 alI welds have been radiographed (marked with class symbol WP-WX). 

Class CR fittings are those manufactured to the requirements of MSS SP-43, and they shaH have pressure ratings compatible with 9.3. 

This specification does not apply to cast fittings. Cast austenitic-steel piping fittings are covered by Specifications A 351, A 743, and A 744. 

Optional supplementary requirements are provided. When desired, one or more may be specified in the order. 

The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate. 

2For ASME Boiler and Pressure Vessel Code applications see related Specification SA-403 in Section II of that Code.

View on Information Provider website
This resource does not cite any other resources.

ASTM A403 - 79 Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

This resource does not CITE any other resources.
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