ASTM A36 Steel plate equivalent grade is Q235B in China. The two equivalent steel grades have much in common without any doubt. However, you will get to know that there are many difference between ASTM A36 steel plate and Q235B steel plate also if you check carefully the technical data comparison between Q235B and A36 as below :

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Chemical Composition

Grade	Chemical composition %
Grade	C	Si	Mn	P	S	Cu
Q235B	0.2 max	0.35 max	1.40 max	0.045 max	0.045 max	-
A36	0.26 max	0.40 max	-	0.04 max	0.05 max	0.20 min

Mechanical Property

Grade	Yield strength ReH/(N/mm2) (t≤16mm) min	Tensile strength Rm/(N/mm2) (3mm≤t≤16mm)	Elongation A/% (3mm≤t≤40mm) min	Charpy V test
Grade	Yield strength ReH/(N/mm2) (t≤16mm) min	Tensile strength Rm/(N/mm2) (3mm≤t≤16mm)	Elongation A/% (3mm≤t≤40mm) min	Temperature/℃	Impact energy (Longitudinal)/J min
Q235B	235	370-500	26	20	27
A36	250	400-550	23	-	-

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Shandong Chengshun Metal Materials Co., Ltd. is located in Jinan City, Shandong Province. It is a comprehensive company dealing in high-quality steel products, with a superior geographical location and very convenient transportation. The company has a complete and scientific quality system, and has been recognized by the industry for its integrity, strength and product quality.

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Mainly exported to Europe, Southeast Asia, South Africa, the Middle East, Latin America and other countries and regions, the products are favored by Chinese and foreign users.

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Hight Strength Low Alloy Steel