SA387 GR.12 CL1 Alloy Pressure Vessel steel plate
SA387 GR.12 CL1 Alloy Pressure Vessel steel plate
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- Commodity name: SA387 GR.12 CL1 Alloy Pressure Vessel steel plate
A387 Grade 12 CL 1 are under steel specification standard ASTM A387/A387M for pressure vessel steel plates, alloy steel with Chromium-Molybdenum
SA387 GR.12 CL1 Alloy Pressure Vessel steel plate Descriptions:
A387Gr12CL1 pressure vessel steel plate owned minimum yield strength at 275 Mpa,and tensile strength within 450-585 Mpa. Pressure vessel steel plate SA387 Grade 12 CL 1 is in American standard ASME SA 387/SA 387M.Boiler steel plate A387 Grade 12 Cl 1 are according to ASTM A387/A387M. These steel materials also shall conform to steel specification A 20/A 20M. These requirements outline the testing and retesting methods and procedures,permissible variations in dimensions and weight,quality and repair of defects,marking,loading,etc.
Chemical Composition and Mechanical Properties:
SA387 Gr.12 CL.1 Chemical Composition Grade The Element Max (%) C Si Mn P S Cr Mo SA387 Gr.12 Cl.1 0.04-0.17 0.13-0.45 0.35-0.73 0.035 0.035 0.74-1.21 0.40-0.65
Grade SA387 Gr.12 CL.1 Mechanical Property Thickness Yield Tensile Elongation SA387 Gr.12 Cl.1 mm Min Mpa Mpa Min % t≦50 230 380-550 22 50<t≦200 - - 18 Refered Standards for ASME SA387 Alloy Steel Plate
ASTM
- SA20/A20M: General requirements for pressure vessel plates.
- SA370: Test specification for mechanical properties of steel
- SA435/A435M: For straight-beam ultrasonic examination of steel plates
- SA577/A577M: For ultrasonic angle beam examination of steel plates
- SA578/A578M: For straight beam UT examination of rolled steel plates in special applications
- SA1017/A1017M: Specification for pressure vessle plates of alloy steel, chromium-molybdenum-tungsten
AWS Specification
- A5.5/A5.5M: Low alloy steel electrodes for shield metal arc welding.
- A5.23/A5.23M: Low alloy steel electrodes for fulxes for submerged arc welding.
- A5.28/A5.28M: For gas shielded arc welding
- A5.29/A5.29M: For flux cored arc welding.
Heat Treatment for SA387 Chrom Moly Alloy Steel Plate
Chrome moly alloy steel plate under ASME SA387 shall be killed steel, with thermally treated either by annealing, normarlizing and tempering. Or in case agreed by buyer, accelerated cooling from the austenitizing temperature by air blasting or liquid quenching, followed by tempering, minimum tempering temperatures shall be as below table:
Grade Temperature, °F [°C] 2, 12 and 11 1150 [620] 22, 22L, 21, 21L and 9 1250 [675] 5 1300 [705] Key words:- SA387 GR.12 CL1 Alloy Pressure Vessel steel plate
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