ASTM A533 Grade A CLASS 2

ASTM A533/A533M A533 Grade A CLASS 2,ASME SA533/SA533M SA533GRACL2 steel plate are mainly used for building pressure veesels with alloy elements Mn and Mo. Comparing with boiler steel plate A533GrAcl1, boiler steel plate A533GrAcl2 owned a higher yield strength(Min. 485Mpa) and tensile strength(620-795Mpa),so pressure vessel steel plates also be named as high strength steel plates which can be bear the higher strength surroundings. Ultrasonice examination shall be done after rolled steel plates SA533GRACL2.

Technical Requirements & Additional Services:

  • High tension test
  • Conform to ASTM A20/A20M
  • Low temperature impacting test
  • Simulated post-welded heat treatment (PWHT)
  • Issued Orginal Mill test certificate under EN 10204 FORMAT 3. 1/3. 2
  • Shot blasting and Painting, Cutting and welding as per end user’s demands

Mechnical property for A533GrACl2 boiler steel:

Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
485 620-795 200mm 50mm

Chemical composition for A533 Grade A Cl2 boiler steel (Product Analysis Max%)

Main chemical elements composition of A533GrACl2
C Si Mn P S Mo
0.25 0.13-0.45 1.07-1.62 0.035 0.035 0.41-0.64
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