B440QZR - Q/BQB 310-2014

Grade	B440QZR
Corresponding Standard	Q/BQB 310-2014 Continuously hot-rolled steel sheet and strip for automobile structural use
Brand/Supplier	-> BAOSTEEL
Classification	Alloy Steel

B440QZR Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum Value	-	-	-	-	-	-	-	-
Maximum Value	0.12	0.5	1.3	0.03	0.025	0.15	0.15	0.2

B440QZR Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
440~570	≥320	≥15

B440QZR 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"!