45MnB A71452 - GB /T 3077-2015

Grade	45MnB
China ISC	A71452
Corresponding Standard	GB /T 3077-2015 Alloy structure steels
Classification	Alloy Steel
Properties	Strength Hardness Machinability Quench Hardness

45MnB Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	B
Minimum Value	0.42	0.17	1.1	-	-	-	-	-	-	0.0008
Maximum Value	0.49	0.37	1.4	0.03	0.03	0.3	0.3	0.3	0.1	0.0035

45MnB Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
d=25	Quenching + Tempering	≥1030	≥835	≥9	≥40	≤217	≥39

45MnB 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"!