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What is the difference between ST37-2 steel plate and Q235B steel plate

What is the difference between ST37-2 steel plate and Q235B steel plate
Feb 17, 2020

The difference between ST37-2 steel plate and Q235B steel plate in chemical composition:

Grade C Mn P S Si Cu N Ni Cr Mo
ST37-2 ≦0.20 - ≦0.050 ≦0.050 - - ≦0.009 - - -
Q235B 0.12-0.20 0.30-0.70 ≦0.045 ≦0.045 ≦0.30 - - - - -

The difference between ST37-2 steel plate and Q235B steel plate in mechanical properties:

Grade Yield strength Tensile strength Extension
MPA MPA %
ST37-2 ≧225 340~470 ≧24
Q235B ≧225 375~460 ≧26
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