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This specification covers chromium-manganese-silicon alloy steel plates, intended particularly for welded boilers and other pressure vessels.
Formerly under the jurisdiction of Committee A01 on Steel, Stainless Steel, and Related Alloys, this specification was withdrawn in September 2004 because there is no indication that the specification is being used or that material pertaining to it is being produced.
1.1 This specification covers chromium-manganese-silicon alloy steel plates, intended particularly for welded boilers and other pressure vessels.
1.2 Plates under this specification are available in two grades having strength levels as follows:
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1.3 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements; however, current practice normally limits the maximum thickness of plates furnished under this specification to 2 in. [50 mm].
1.4 Grade A is suitable for rivets and when so used the bars shall be subject to the requirements for rolled bars specified in Specification A 31, except for the chemical and mechanical requirements.
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. Combining values from the two systems may result in nonconformance with this specification.
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ASTM A202 / A202M-03, Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Manganese-Silicon (Withdrawn 2004), ASTM International, West Conshohocken, PA, 2003, www.astm.orgBack to Top