Q460qD - GB /T 714-2025

Grade	Q460qD
Corresponding Standard	GB /T 714-2025 Structural Steel for Bridge
Classification	Alloy Steel

Q460qD Chemical Element Composition Content (%)

	Component	C	Si	Mn ^③	P	S	Cr	Ni	Cu	Mo	N	Ti ^①	V ^①	Nb ^①	B ^④	Al ^①②	H ^④
热机械轧制钢	Minimum Value	-	-	0.8	-	-	-	-	-	-	-	0.006	0.01	0.01	-	0.01	-
热机械轧制钢	Maximum Value	0.11	0.55	1.7	0.025	0.015	0.5	0.3	0.3	0.25	0.008	0.03	0.08	0.09	0.0005	0.045	0.0002

Q460qD Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤50	≥570	ReL ≥460	≥18	-20°C t≤12 ≥80 12＜t≤100 ≥120
50＜t≤100	≥570	ReL ≥450	≥18	-20°C ≥120
100＜t≤130	≥490	ReL ≥385	≥18	-20°C ≥47

1 Approximate Comparison Table High strength structural steel plates in the quenched and tempered condition

China	International Organization for Standardization	European Standard
GB	ISO	EN
Q460QD GB/T 16270-2009 Q460D GB/T 16270-1996	E460DD ISO 4950.3-2003	S460Q EN 10025-6-2004

2 Approximate Comparison Table High strength structural steel plates in the quenched and tempered condition

China	International Organization for Standardization
GB	ISO
Q460QD GB/T 34560.4-2017 Q460D GB/T 16270-2009	S460QD ISO 630-4-2012

Q460qD Corresponding Standards(Same grade name, different standards)

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