ASTM A234/A234M-11a

1.1 This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction covered by the latest revision of ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, and MSS-SP-97. These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures. Fittings differing from these ASME and MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A960/A960M.

1.2 Optional supplementary requirements are provided for fittings where a greater degree of examination is desired. When desired, one or more of these supplementary requirements may be specified in the order.

1.3 This specification does not cover cast welding fittings or fittings machined from castings. Cast steel welding fittings are governed by Specifications A216/A216M and A217/A217M.

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.



Keywords: pipe fittingschar: emdashsteel; piping applications; pressure containing parts; pressure vessel service; temperature service applicationschar: emdashelevated; Alloy steel fittings--specifications; Carbon steel pipe fittings--specifications; Elevated temperature service applications--steel; Steel fittings--specifications; Wrought steel fittings--specifications; ICS Number Code 23.040.40 (Metal fittings)

This product referenced by:ANSI/ASME B16.11-2011 - Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
ANSI/ASME B16.9-2012 - Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
This product replaces:ASTM A234/A234M-11 - Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service

Browse Product Family:

ASTM A234/A234M-11a
ASTM A234/A234M-11
ASTM A234/A234M-10b
ASTM A234/A234M-10a
ASTM A234/A234M-10
ASTM A234/A234M-07
ASTM A234/A234M-06a
ASTM A234/A234M-06
ASTM A234/A234M-05a
ASTM A234/A234M-05
ASTM A234/A234M-04
ASTM A234/A234M-03
ASTM A234/A234M-02
ASTM A234/A234M-01a
ASTM A234/A234M-01
ASTM A234/A234M-00
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ASTM A234/A234M-97