HR2 D - ISO 1079-2009

Grade	HR2
Old Grade
Corresponding Standard	IS 1079-2009 Hot rolled carbon steel sheet and strip specification
Classification	Carbon Steel

HR2 Chemical Element Composition Content (%)

Component	C	Mn	P	S
Minimum Value	-	-	-	-
Maximum Value	0.1	0.45	0.04	0.035

HR2 Mechanical Properties

form	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %
Thin plates and strips	≤420	t≤3 L0=80mm：≥25 L0=50mm：≥26 t＞3mm L0=5.65√S0: ≥30 L0=50mm: ≥31

1 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

China		United States	International Organization for Standardization	Germany		France	Russia	United Kingdom
GB	ISC	ASTM	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	BS EN/BS
Q195 (A1) (B1)	U11952	A285M Gr.B	HR2	S185 (St33)	1.0035	S185 (A33)	Ст1кп Ст1сп Ст1пс	S185 (040A10)

2 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	United Kingdom
JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
SPHD	A621CQ CS	HR2	StW22	1C	DD11	1.0332	15kp	HR3

HR2 Corresponding Standards(Same grade name, different standards)

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