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  • A633GrA
  • A633GrA

A633GrA,A633 Grade A

  • Steel Standard: ASTM A633/A633M
  • Rolling Type: Low alloy steel plate,HSLA steel plate
  • Thickness: 6mm-450mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: Normalised
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■ Overview
ASTM A633 Grade A low alloy steel plate is mainly used in steel structures.This steel standard A633/A633M includes four different steel grades A633GrA,A633GrC,A633GrD and A633GrE.They have owned different chemical composition and mechanical property.Low alloy steel plate A633Gr.A owned the minimum yield strength at 290Mpa,and the tensile strength shall be within 430-570Mpa.Normalized het treatment is necessary for steel plate A633 Grade A for any thickness when rolling.
■ Full Data
Technical Requirements & Additional Services:
♦ High tension test
♦ Low temperature impacting test
♦ Simulated post-welded heat treatment (PWHT)
♦ All thickness for this grade shall be done Normalized
♦ 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 A633GrA low alloy steel: 

Thickness(mm) Yield strength (≥Mpa) Tensile strength (≥Mpa) Elongation in ≥,%
T≤65 290 430-570 200mm 50mm
65<T≤100 290 430-570
100<T ... ... 18 23

Chemical composition for A633GrA low alloy steel (Product Analysis Max%)

Main chemical elements composition of A633GrA
C Si Mn P S Nb
0.18 0.15-0.50 1.00-1.35 0.035 0.04 0.05
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