ASTM A423 / ASME SA423 / Seamless and Electric Welded Low Alloy Steel Tubes supplier & distributor in India

ASTM A423M-89/ASME SA423

SEAMLESS AND ELECTRIC WELDED LOW ALLOY STEEL TUBES
(ASTM A 423 M - 89 / ASME SA 423 /ASTMA423M-89/ASMESA423)

This standard is issued under the fixed designation A 423; 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 minimum-wall-thickness, seamless and electric-resistance welded, low-alloy steel tubes for pressure containing parts such as economizers or other applications where corrosion resistance is important.

1.2 The tubing sizes and thicknesses usually furnished to this specification are 1/2 to 5 in. [12.7 to 127 mm] in outside diameter and 0.035 to 0.500 in. [0.9 to 12.7 mm] inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.

1.3 Mechanical property requirement is provided and, when desired, shall be so stated in the order.

1.4 An optional supplementary requirement is provided and, when desired, shall be so stated in the order.

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. Combing values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the "M" designation of this specified in the order.

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