Q420C - GB /T 34199-2017

Grade	Q420C
Corresponding Standard	GB /T 34199-2017 Hot-rolled H section steel for electrified railway pillars
Classification	Alloy Steel

Q420C Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Ni	N	Ti	V	Nb	More
Minimum Value	-	-	-	-	-	-	-	-	-	-	CEV≤0.44
Maximum Value	0.15	0.5	1.7	0.03	0.03	0.8	0.012	0.2	0.2	0.07	CEV≤0.44

Q420C Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤40	520~680	t≤16: ReH≥420 16＜t≤40: ReH≥410	A: ≥19	0°C: ≥34

Q420C Corresponding Standards(Same grade name, different standards)

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