Q500qNHD - GB /T 714-2025

Grade	Q500qNHD
Corresponding Standard	GB /T 714-2025 Structural Steel for Bridge
Classification	Alloy Steel

Q500qNHD 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
耐候钢	Minimum Value	-	0.15	1.1	-	-	0.45	0.3	0.25	-	-	0.006	0.01	0.01	-	0.015	-
耐候钢	Maximum Value	0.11	0.5	1.5	0.025	0.015	0.7	0.45	0.55	0.25	0.008	0.03	0.1	0.1	0.0005	0.05	0.0002

Q500qNHD Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %
t≤50	≥630	ReL ≥500	≥18
50＜t≤100	≥630	ReL ≥480	≥18
100＜t≤150	≥560	ReL ≥450	≥18

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