Q355C - GB /T 34199-2017

Grade	Q355C
Corresponding Standard	GB /T 34199-2017 Hot-Rolled H Section Steel for Electrified Railway Pillars
Classification	Alloy Steel

Q355C Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Ni	N	Ti	V	Nb	More
Minimum Value	-	-	-	-	-	-	-	-	-	-	CEV≤0.43
Maximum Value	0.2	0.5	1.6	0.03	0.03	0.5	0.01	0.2	0.15	0.07	CEV≤0.43

Q355C 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	470~630	t≤16: ReH≥355 16＜t≤40: ReH≥345	A: ≥22	0°C: ≥34

Approximate Comparison Table High strength low alloy structural steels

China	International Organization for Standardization	European Standard
GB	ISO	EN
Q355C GB/T 1591-2018	S355C ISO 630-2-2011	S355J0 EN 10025-2-2004

Q355C Corresponding Standards(Same grade name, different standards)

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