ASTM-A592 › Historical Revision Information
Standard Specification for High-Strength Quenched and Tempered Low-Alloy Steel Forged Fittings and Parts for Pressure Vessels
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ASTM A592/A592M-04 covers the standard specification for high-strength quenched and tempered low-alloy steel forged fittings and parts used for pressure vessels. The steel shall be made by a melting process and shall be fully killed and fine grained. After forging and before reheating, the forgings shall be cooled to provide substantially complete transformation of austenite. Samples for mechanical test specimens shall be removed after the quenching and tempering heat treatment. The test specimens may be machined from a production forging or from special forged blocks suitably worked and heat treated with the production forgings. Such special blocks shall be obtained from an ingot, slab, or billet from the same heat as the forgings they represent and shall be reduced by forging in a manner similar to that for the products to be represented. The specimens shall undergo tension and Charpy V-notch impact tests.
Scope
1.1 This specification covers high-strength quenched and tempered low-alloy steel forged fittings and parts for pressure vessels. The maximum thickness of forgings under this specification shall be 11/2 in. [38 mm] for Grade A, and 4 in. [100 mm] for Grades E and F.
Note 1—These grades are similar to corresponding grades in Specification A 517/A 517M.
1.2 Although no provision is made for supplementary requirements in this standard, the supplementary requirements in Specification A 788 may be considered by the purchaser.
1.3 Welding technique is of fundamental importance and it is presupposed that welding procedures will be in accordance with approved methods for the class of material used.
1.4 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as the standard; within the text and tables, 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.
1.5 Unless the order specifies the applicable "M" specification designation, the material shall be furnished to the inch-pound units.
Keywords
high-strength low-alloy steel; fittings—steel; pressure vessel service; quenched and tempered steel; steel forgings—alloy; ICS Number Code 23.060.01 (Valves in general)
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01.05 (Steel--Bars, Forgings, Bearing, Chain, Tool)
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Document Number
ASTM-A592/A592M-04
Revision Level
2004 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
May 1, 2004
Document Type
Specification
Page Count
3 pages
Committee Number
A01.06