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  • A131 Grade A
  • A131GrA

A131 Grade A,A131GrA

  • Steel Standard: ASTM A131/A131M
  • Rolling Type: Shipbuilding steel plate,Platform steel plate
  • Thickness: 3mm-300mm
  • Width: 1500mm-4200mm
  • Length: 3000mm-18000mm
  • Heat Treatment: As Rolled/Control-rolled/TMCP/Normalised
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■ Overview
A131 Grade A steel plate is common strength shipbuilding plate which is mainly used for built hull of vessels,ship body construction.Normally when rolling,Air rolled and Control Rolled is ok for ship plate A131 Grade A with the thickness equal and belows 40 Millimeters,and for thickness above 40mm,the heat treatment shall be Normalised or TMCP,these two technical treatment would improve steel strength in yield and tensile points. 
■ Full Data
Technical Requirements & Additional Services:
 High tension test
 Z-Test (Z15,Z25,Z35)
 Low temperature impacting test
 Ultrasonic test under ASTM A435,A577,A578
 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 A131 Grade A shipbuilding structual steel:

Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
235 400-520 200mm 50mm
21 24

Chemical composition for A131 Grade A ship steel (Heat Analysis Max%)

Main chemical elements composition of A131 Grade A
C Si Mn P S
0.21 0.50 2.5×C 0.035 0.035
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