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  • A302 Grade A
  • A302 Grade A

A302 Grade A,A302GrA

  • Steel Standard: ASTM A302/A302M
  • Rolling Type: Boiler steel plate,Pressure vessel steel plate
  • Thickness: 6mm-300mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: Normalised/Normalized+Tempered
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■ Overview
Under ASTM A302/A302M steel specification,there are four steel grades,such as A302 Grade A boiler steel plate,A302 Grade B pressure vessel steel plate,A302 Grade C boiler steel plate and A302 Grade D pressure vessel steel plate.Pressure vessel steel plate SA302 Grade A is manganese-molybdenum alloy steel plates intended particularly for welded boilers and other pressure vessels.Boiler steel plate A302 Grade A shall be with minimum yield strength at 310Mpa,and tensile strength within 515-655 Mpa. 
■ Full Data
 Technical Requirements & Additional Services:
♦  High tension test
♦  Low temperature impacting test
♦  Normalised for thick plates over 40mm
♦  Simulated post-welded heat treatment (PWHT)
♦  Rolling under standard NACE MR-0175 (HIC+SSCC)
♦  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
■ Techicals
Mechnical property for A302GrA boiler steel:

Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
310 515-655 200mm 50mm
15 19

Chemical composition for A302 Grade A boiler steel (Product Analysis Max%)

Main chemical elements composition of A302Grade A
Thickness(mm) C Si Mn P S Mo
T≤25 0.20 0.13-0.45 0.87-1.41 0.035 0.035 0.41-0.64
25<T≤50 0.23
50<T 0.25
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