Q235B A36 Angle Steel

A36 steel plate is similar to Q235B steel plate, it is one Q235b equivalent steel standard, another one is SS400. While the difference between A36 and Q235B is as follows:

Different Yield Point (A36=250MPa, Q235B=235MPa);

Different Tensile Strength (A36=400-550MPa, Q235B=375-500MPa);

Different element content requirements: (A36: C is equal to or less than 0.25%, Si is less than or equal to 0.4%, P < 0.04%, s is less than or equal to 0.05%; Q235B:C=0.12-0.2%, Si is less than or equal to 0.3, P < 0.045%, s is equal to or less than 0.045%).Q235 manganese content of the requirements (Mn=0.30-0.70%) A36 manganese content is not required.

Q235 & A36

Different standard formulation parties:
A36 for American Standard ASME standard (ASTM specification equivalent) materials, Q235 GB700 standards GB material. GB700:Q235 G3101:SS400 JIS ASME:A36

Different chemical composition:
The content of Mn element in A36 due to the plate thickness (or diameter) of different instead, below 20mm, without Mn. Q235 of C, Si, Mn, S, P and other elements of the content have made a request

Different mechanical property:
The tensile strength of A36 is Ksi 58~80 (about 400~550MPa), the yield strength is 36 Ksi (about 250MPa); the tensile strength of 370~500 is MPa Q235, and the yield strength is 235MPa

Introduction：

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