HR275 - ISO 4995-2014

Grade	HR275
Corresponding Standard	ISO 4995-2014 Hot-Rolled Steel Sheet of Structural Quality
Classification	Alloy Steel

HR275 Chemical Element Composition Content (%)

Component	C	Mn	P	S	Cr	Ni	Cu	Mo	Ti ^①	V ^①	Nb ^①	More
Minimum Value	-	-	-	-	-	-	-	-	-	-	-	Cu+Ni+Cr+Mo≤0.50，Cr+Mo≤0.16
Maximum Value	0.2	1.2	0.035	0.035	0.15	0.2	0.2	0.06	0.008	0.008	0.008	Cu+Ni+Cr+Mo≤0.50，Cr+Mo≤0.16

HR275 Mechanical Properties

	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t<3，L=50	≥370	≥275	≥17
t<3，L=80	≥370	≥275	≥15
3≤t≤6, L=5.65√S (Cross-sectional Area)	≥370	≥275	≥20
3≤t≤6，L=50	≥370	≥275	≥18

HR275 Corresponding Standards(Same grade name, different standards)

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