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  • A203 Grade D
  • A203 Grade D

A203 Grade D,A203GrD

  • Steel Grade: A203 Grade D,A203GrD
  • Steel Standard: ASTM A203/A203M
  • Rolling Type: Boiler steel plate,Pressure vessel steel plate
  • Thickness: 6mm-300mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
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■ Overview
Under steel specification ASTM A 203/A 203 M and SA 203/SA 203M, there are Nickel alloy boiler steel plate SA203 Grade D,pressure vessel steel plate A203 Grade D.The steel plate A203 Grade D intended primarily for welded pressure vessels. As a steel making practice, the steel shall be killed and shall conform to fine grain size requirements.Generally, for steel grades SA203 grade A,SA203 Grade B and SA203 Grade D and SA203 Grade E,the heat treatment shall be done Normalized.For pressure vessel steel plate SA203 Grade F,the heat treatment shall be Quenched and Tempered.

■ Full Data
Technical Requirements & Additional Services:
♦ High tension test
♦ Low temperature impacting test
♦ 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 A203 Grade D alloy steel:

Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
255 450-585 200mm 50mm
19 23

Chemical composition for A203 Grade D alloy steel (Heat Analysis Max%)

Main chemical elements composition of A203 Grade D
Thickness(mm) C Si Mn P S Ni
T≤50 0.17 0.15-0.40 0.70 0.035 0.035 3.25-3.75
50<T 0.20 0.80

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