ER7 - EN 13262-2004

Grade	ER7
Corresponding Standard	EN 13262-2004 Railway Applications - Wheelsets and Bogies - Wheels - Product Requirement
Classification	Carbon Steel

ER7 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V	More
Minimum Value	-	-	-	-	-	-	-	-	-	-	Cr+Mo+Ni≤0.5
Maximum Value	0.52	0.4	0.8	0.02	0.015	0.3	0.3	0.3	0.08	0.06	Cr+Mo+Ni≤0.5

ER7 Mechanical Properties

condition	Mark	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
Wheel test sample	Rim	820~940	≥520	≥14	-20°C,≥10；+20°C,KU2≥17
Radiator plate sample	Spoke	Tensile strength reduction value ≥110*		≥16

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