SM490B - JIS G 3106-2008

Grade	SM490B
Corresponding Standard	JIS G 3106-2008 Rolled steels for welded structure
Classification	Carbon Steel

SM490B Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S
厚度≤50	Minimum Value	-	-	-	-	-
厚度≤50	Maximum Value	0.18	0.55	1.65	0.035	0.035

	Component	C	Si	Mn	P	S
<50厚度≤200	Minimum Value	-	-	-	-	-
<50厚度≤200	Maximum Value	0.2	0.55	1.65	0.035	0.035

SM490B Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t≤16	490~610	≥325
16<t≤40	490~610	≥315
40<t≤100	490~610	≥295
100<t≤160	490~610	≥285
160<t≤200	490~610	≥275
t≤5			No.5 ≥22
5<t≤16			No.1A ≥17
16<t≤50			≥21
t>40			No.4 ≥23

1 Approximate Comparison Table

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
20	SM490B	A537CL1	E355	StE355	A510AP E355R	P355N	1.0562	15GF	2106	223Gr.490 50DD

2 Approximate Comparison Table

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM/AISI	ISO	EN	Numerical Grade
Q275C (GB/T 700-2006)	U12758	SM490B (JIS G3106:2004) SM490B	Gr.70[290] (ASTM A573/A573M:2000)	E275C (ISO 630:1995)	S275J0 (EN 10025-2:2004)	1.0143

3 Approximate Comparison Table

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM/AISI	ISO	EN	Numerical Grade
Q275D (GB/T 700-2006)	U12759	SM490B (JIS G3106:2004)	Gr.70[290] (ASTM A573/A573M:2000)	E275D (ISO 630:1995)	S275J2 (EN 10025-2:2004)	1.0145

SM490B Corresponding Standards(Same grade name, different standards)

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