Q460C - GB /T 1591-2018

Grade	Q460C
Corresponding Standard	GB /T 1591-2018 High Strength Low Alloy Structural Steels
Classification	Alloy Steel

Q460C Chemical Element Composition Content (%)

Component	C ^①	Si	Mn	P ^②	S ^②	Cr	Ni	Cu	Mo	N ^⑤	Ti ^④	V ^④	Nb ^③	B
Minimum Value	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Maximum Value	0.2	0.55	1.8	0.03	0.03	0.3	0.8	0.4	0.2	0.015	0.05	0.13	0.05	0.004

Q460C Mechanical Properties

thickness or diameter t mm	Test Temperature	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤16	Room temperature	550~720	ReH: ≥460	≥18
16<t≤40		550~720	ReH: ≥450	≥18
40<t≤63		550~720	ReH: ≥430	≥17
63<t≤80		550~720	ReH: ≥410	≥17
80<t≤100		550~720	ReH: ≥410	≥17
100<t≤150		530~700	ReH: ≥390	≥17
specimen	0°C				long. ≥34 tr. ≥27

New and Old Grade Replacement List

Approximate Comparison Table High strength low alloy structural steels

China	International Organization for Standardization	European Standard
GB	ISO	EN
Q460C GB/T 1591-2018	S450C ISO 630-2-2011	S450J0 EN 10025-2-2004

Q460C Corresponding Standards(Same grade name, different standards)

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