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  • SA203GrB steel plate
  • SA203GrB steel sheet


  • Steel Grade: SA203 Grade B,SA203GrB
  • Steel Standard: ASME SA203/SA203M
  • Rolling Type: Boiler steel plate,Pressure vessel steel plate
  • Thickness: 5mm-300mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
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■ Overview
SA203 Grade B steel plate with minimum yield strength at 275 Mpa,higher than SA203 Grade A steel sheet at 255 Mpa,and tensile strength shall be above 480 Mpa for SA203GrB steel sheet.Tension Test shall be done for SA203 Grade B steel plate when rolling and other general requirements for SA203GRB steel sheet shall be comply to ASME sa20/sa20m.

■ Full Data
Technical Requirements & Additional Services for SA203 Grade B steel plate:
♦  Charpy V-nocth impacting test
♦  Simulated post-welded heat treatment (PWHT)
♦  Rolling under standard NACE MR-0175 (HIC+SSCC)
♦  Shot blasting comply to SA2.5 and Painting with shop primer
♦  Normalized heat treatment for steel plate
♦  Issued Orginal Mill test certificate under EN 10204 FORMAT 3.2 with third party insepction witness
♦  Cutting,Welding,Rough Machining,Finish Maching,Drilling,Milling,Grinding according to CAD Drawing
■ Techicals
Mechnical property for SA203 Grade B steel plate:

Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
275 485-620 200mm 50mm
17 21

Chemical composition for SA203 Grade B steel plate (Heat Analysis Max%)

Main chemical elements composition of SA203 Grade B
Thickness(mm) C Si Mn P S Ni
T≤50 0.21 0.15-0.40 0.70 0.035 0.035 2.10-2.50
50<T 0.24 0.80
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