HR4 EDD - ISO 1079-2009

Grade	HR4
Old Grade
Corresponding Standard	IS 1079-2009 Hot Rolled Carbon Steel Sheet and Strip Specification
Classification	Carbon Steel

HR4 Chemical Element Composition Content (%)

Component	C	Mn	P	S
Minimum Value	-	-	-	-
Maximum Value	0.08	0.35	0.03	0.03

HR4 Mechanical Properties

form	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %
Thin plates and strips	≤380	t≤3 L0=80mm：≥31 L0=50mm：≥32 t＞3mm L0=5.65√S0: ≥36 L0=50mm: ≥37

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
SPHE SPHE-AK	A622DQ DS	HR4	StW24	3C	DD13	1.0335	08kp	HR1

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