SM400A - JIS G 3106-2008

Grade	SM400A
Corresponding Standard	JIS G 3106-2008 Rolled steels for welded structure
Classification	Carbon Steel

SM400A Chemical Element Composition Content (%)

	Component	C	P	S	More
厚度≤50	Minimum Value	-	-	-	Mn≥2.5C*
厚度≤50	Maximum Value	0.23	0.035	0.035	Mn≥2.5C*

	Component	C	P	S	More
<50厚度≤200	Minimum Value	-	-	-	Mn≥2.5C*
<50厚度≤200	Maximum Value	0.25	0.035	0.035	Mn≥2.5C*

SM400A Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t≤16	400~510	≥245
16<t≤40	400~510	≥235
40<t≤100	400~510	≥215
100<t≤160	400~510	≥205
160<t≤200	400~510	≥195
t≤5			No.5 ≥23
5<t≤16			No.1A ≥18
16<t≤50			≥22
t>40			No.4 ≥24

1 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

2 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
Q235A Q235B Q235D	SM400A SS400	1015 A283C GradeC GradeD SSGrade33	E235B Fe360B	RSt37-2 St37-2	E24-2	S235JR Fe360B① Fe360BFN① S235JRG2①	1.0038(dubl)	St2ps St2sp St3ps St3sp	1311 1312	40A 40B

3 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM/AISI	ISO	EN	Numerical Grade
Q235C (GB/T 700-2006)	U12358	SM400A (JIS G3106:2004)	Gr.65[240] (ASTM A573/A573M:2000)	E235C (ISO 630:1995)	S235J0 (EN 10025-2:2004)	1.0114

SM400A Corresponding Standards(Same grade name, different standards)

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