U75VG - TB /T 3276-2011

Grade	U75VG
Corresponding Standard	TB /T 3276-2011 Rail for High Speed Railway
Classification	Alloy Steel

U75VG Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^*	Ni ^*	Cu ^*	Mo ^*	Ti ^*	V	Nb ^*	Al	Sn ^*	Sb ^*	More
Minimum Value	0.71	0.5	0.75	-	-	-	-	-	-	-	0.04	-	-	-	-	Cu+10Sn≤0.35 Cr+Mo+Ni+Cu≤0.35
Maximum Value	0.75	0.7	1.05	0.025	0.025	0.15	0.1	0.15	0.02	0.025	0.08	0.01	0.004	0.03	0.02	Cu+10Sn≤0.35 Cr+Mo+Ni+Cu≤0.35

U75VG Mechanical Properties

Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Hardness HBW
≥980	≥10	Rail head top surface centerline hardness (HBW10/3000): 280~320

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