19Mn6 - Q/BQB 320-2003

Grade	19Mn6
Corresponding Standard	Q/BQB 320-2003 Hot Rolled Steel Sheets and Strips for Boilers and Pressure Vessels
Classification	Alloy Steel

19Mn6 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^*	Ni ^*	Mo ^*	Ti ^*	V ^*	Nb ^*	Al	More
Minimum Value	0.15	0.3	1	-	-	-	-	-	-	-	-	0.02	Cr+Cu+Ni+Mo≤0.7
Maximum Value	0.22	0.6	1.6	0.03	0.025	0.3	0.3	0.08	0.03	0.02	0.01	-	Cr+Cu+Ni+Mo≤0.7

19Mn6 Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t≤16	510~650	≥355	≥21	0°C: ≥31
t＞16	510~650	≥345	≥21	0°C: ≥31

19Mn6 Corresponding Standards(Same grade name, different standards)

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