B490RNQB - Q/BQB 313-2019

Grade	B490RNQB
Corresponding Standard	Q/BQB 313-2019 Hot Rolled Steel Plates and Coils for Building Structures
Classification	Carbon Steel

B490RNQB Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	More
Minimum Value	-	0.15	-	-	-	0.45	0.05	0.3	0.3	Pcm≤0.27
Maximum Value	0.15	0.55	1.6	0.03	0.015	0.75	0.3	0.5	0.9	Pcm≤0.27

B490RNQB Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
6≤t＜12	490~610	≥325	≥17
12≤t≤16	490~610	325~445	≥17
t＞16	490~610	325~445	≥21

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