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About This Item

 

Full Description

1.1 This specification2 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:
  Nominal Nominal   Chromium Molybdenum Grade Content, % Content, %   2 0.50 0.50  12 1.00 0.50  11 1.25 0.50  22 2.25 1.00  21 3.00 1.00   5 5.00 0.50   9 9.00 1.00  91 9.00 1.00
1.3 Each grade except Grade 91 is available in two classes of tensile strength levels as defined in the Tensile Requirements tables. Grade 91 is available only as Class 2. Grade 91 consists of two types, with Type 2 differentiated from Type 1 by requiring restricted composition for the enhancement of creep resistance.
Note 1: Grade 911, previously covered by this specification, is now covered by Specification A1017/A1017M.
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.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
 

Document History

  1. ASTM A387/A387M-17a(2023)

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

    • Most Recent
  2. ASTM A387/A387M-17a


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

    • Historical Version
  3. ASTM A387/A387M-17


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

    • Historical Version
  4. ASTM A387/A387M-11


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

    • Historical Version
  5. ASTM A387/A387M-10


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

    • Historical Version
  6. ASTM A387/A387M-06a


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

    • Historical Version
  7. ASTM A387/A387M-06


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

    • Historical Version
  8. ASTM A387/A387M-05a


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

    • Historical Version
  9. ASTM A387/A387M-05


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

    • Historical Version
  10. ASTM A387/A387M-03


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

    • Historical Version
  11. ASTM A387/A387M-99e1


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

    • Historical Version
  12. ASTM A387/A387M-99


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

    • Historical Version