SM490A - JIS G 3106-2008

Grade	SM490A
Corresponding Standard	JIS G 3106-2008 Rolled steels for welded structure
Classification	Carbon Steel

SM490A Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S
厚度≤50	Minimum Value	-	-	-	-	-
厚度≤50	Maximum Value	0.2	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	0.22	0.55	1.65	0.035	0.035

SM490A 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 Carbon Structural Steel and Engineering Steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	SS	BS EN/BS
Q345B Q345C	SM490A SS490	A572 A678Gr.A SSGrade50	E355C Fe510B	St52-3	E36-2	S355JR Fe510B	1.0045	2132-01	50B

2 Approximate Comparison Table Structural, Pressure Vessel and Engineering Steels

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST
Q420D	SM490A SM490C	A255Gr.D A633E	E420	StE420	E420R	S420N FeE420KGN	1.8902	16G2AF

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
Q275B (GB/T 700-2006)	U12753	SM490A (JIS G3106:2004)	Gr.70[290] (ASTM A573/A573M:2000)	E275B (ISO 630:1995)	S275JR (EN 10025-2:2004)	1.0044

SM490A Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!