15MnCuCr-QT - GB /T 4172-1984

Grade	15MnCuCr-QT
Corresponding Standard	GB 4172-1984 Atmosphere Corrosion Resisting Steel for Welded Structure
Classification	Alloy Steel

15MnCuCr-QT Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni ^*	Cu	Mo ^*	Ti ^*	V ^*	Nb ^*	Zr ^*	Al ^*
Minimum Value	0.1	0.15	0.9	-	-	0.3	-	0.2	-	0.02	0.02	0.015	-	0.015
Maximum Value	0.19	0.35	1.3	0.04	0.04	0.65	0.65	0.4	0.3	0.1	0.15	0.05	0.15	-

15MnCuCr-QT 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	549~696	≥441	≥20	-20°C: ≥31
16＜t≤40	549~696	≥431	≥22	-20°C: ≥31
t＞40	549~696	≥412	≥20	-20°C: ≥31

New and Old Grade Replacement List

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