20MnCrMo4-2

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#20MnCrMo4-2

Description

20MnCrMo4-2 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 20MnCrMo4-2

Category	Type	Steel Grade
Steel Grades	Carbon Steel	20MnCrMo4-2
		20MnCr4-2
		B23
		17MnCr5
		B24
		19MnCr5
		B25
		15CrMo4
		B26
		20CrMo4
		B27

Chemical composition(mass fraction)(wt.%) of the 20MnCrMo4-2

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17-0.23	0.4	0.65-1.1	0.025	0.015	0.4-0.75
Mo	Al	Cu	Nb	Ti	V	Ce
0.1-0.2	0.05	0.3		+
N	O2	Pb	B	Other
	0.002

Mechanical Properties of steel grade 20MnCrMo4-2

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
679 (≥)	399 (≥)	31	12	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	414

Physical Properties of steel grade 20MnCrMo4-2

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
21	-	-			0.11	-
187	824	-	24.3	244		-
469	-	22	42.2			424	433

Heat Treatment of steel grade 20MnCrMo4-2

Heat treated : 1715°C - 1994°C

Technological Curves of steel grade 20MnCrMo4-2

No Curve

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Jiangyou Longhai Special Steel Co.,Ltd.

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