Q690GJ-D - GB /T 19879-2023

Grade	Q690GJ-D
Corresponding Standard	GB /T 19879-2023 Steel Plate for Building Structure
Classification	Alloy Steel

Q690GJ-D Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb	Al ^①
Minimum Value	-	-	-	-	-	-	-	-	-	-	-	-	0.015
Maximum Value	0.18	0.6	2.2	0.02	0.01	1.2	2	0.5	0.6	0.03	0.12	0.11	-

Q690GJ-D Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
12≤t≤20	770~940	R_eH：≥690	≥14
20<t≤50	770~940	R_eH：690~860	≥14

Q690GJ-D Corresponding Standards(Same grade name, different standards)

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