ASTM A369 / ASME SA369 / Carbon and Ferritic Alloy Steel Forged and Bored Pipe supplier & distributor in India

ASTM A369M-89/ASME SA369

CARBON AND FERRITIC ALLOY STEEL FORGED AND BORED PIPE FOR HIGH TEMPERATURE SERVICE

(ASTM A 369 M - 89 / ASME SA 369 /ASTMA369M-89/ASMESA369)

This standard is issued under the fixed designation A 369/A 369M; 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 heavy-wall carbon and alloy steel pipe (Note 1) made from turned and bored forgings and this specification shall be suitable for bending and other forming operation and for fusion welding. Selection ill depend in design, service conitions, mechanical properties and high-temperature characteristics.

NOTE 1¦¡The use of the word "pipe" throughout the several sections of this specification is used in the broad sense and intended to mean pipe headers, or leads.

NOTE 2 ¦¡ The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such
traditional terms as "nominal diameter," "size," and "nominal size." 1.2 Several grades of ferritic steels are covered. Their compositions are given in Table 1.

1.3 Supplementary requirements (S1 to S6) of an optional nature are provided. These supplementary requirements call for additional tests to be made, and when desired shall be so stated in the order, together with the number of such tests required.

1.4 The values stated in either inch-pound units or SI units are to 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. Combining values from the two systems may result in nonconformance with the
specification. The inch-pound units shall apply unless the "M" designation of this specification is specified in the order.

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