ASTM A422 / ASME SA422 / Butt Welds in Still Tubes supplier & distributor in India

ASTM A422/ASME SA422

BUTT WELDS IN STILL TUBES FOR REFINERY SERVICE
(ASTM A 422 / ASME SA 422 /ASTMA422/ASMESA422)

This standard is issued under the fixed designation A 422; 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 ( ε) indicates an editorial change since the last revision or reapproval.

1.Scope

1.1 This specification covers requirements for butt welds joining lengths of still tubes. It is intended for use in conjunction with an applicable specification for still tubes which determines when butt welds are permissible. See Section 1 of Specification A 161, Specification A 200, and Specification A 271.

1.2 The values stated in inch-pound units are to be regarded as the standard.

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