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ASTM A387/A387M-06a

Historical Revision

Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum

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1.1 This specification covers chromium-molybdenum alloy steel plates intended primarily for welded boilers and pressure vessels designed for elevated temperature service.

1.2 Plates are available under this specification in several grades having different alloy contents as follows:/p>

1.3 Each grade except Grades 21L, 22L, and 91 is available in two classes of tensile strength levels as defined in the Tensile Requirements tables. Grades 21L and 22L are available only as Class 1. Grade 91 is available only as Class 2.

Grade 911, previously covered by this specification, is now covered by Specification A 1017/A 1017M.

1.4 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property 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.


This specification covers chromium-molybdenum alloy steel plates for welded boilers and pressure vessels designed for elevated temperature service. Materials considered under this specification are available in grades 2, 12, 11, 22, 22L, 21, 21L, 5, 9 and 91. The steel materials shall be killed and shall be thermally treated. The steel specimens shall undergo heat analysis and product analysis and shall conform to the chemical requirements for carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, nickel, vanadium, columbium, boron, nitrogen, aluminum, titanium, and zirconium. The steel specimens shall also undergo tension tests and shall conform to the required values of tensile strength, yield strength, and elongation.


SDO ASTM: ASTM International
Document Number A387
Publication Date Oct. 1, 2006
Language en - English
Page Count 6
Revision Level 06a
Supercedes
Committee A01.11
Publish Date Document Id Type View
Nov. 1, 2017 A0387_A0387M-17A Revision
March 15, 2017 A0387_A0387M-17 Revision
April 1, 2011 A0387_A0387M-11 Revision
Oct. 1, 2010 A0387_A0387M-10 Revision
Oct. 1, 2006 A0387_A0387M-06A Revision
March 1, 2006 A0387_A0387M-06 Revision
Oct. 1, 2005 A0387_A0387M-05A Revision
March 1, 2005 A0387_A0387M-05 Revision
May 10, 2003 A0387_A0387M-03 Revision
March 10, 1999 A0387_A0387M-99E01 Revision
March 10, 1999 A0387_A0387M-99 Revision
Sept. 1, 2023 A0387_A0387M-17AR23 Reaffirmation