20Cr4

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#20Cr4

Description

20Cr4 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 20Cr4

Category	Type	Steel Grade
Steel Grades	Carbon Steel	20Cr4
		A485 Grade3
		A485 Grade4
		52100
		5195
		K19526
		1070M
		5160
		B20
		20Cr3
		B21

Chemical composition(mass fraction)(wt.%) of the 20Cr4

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17-0.23	0.4	0.6-0.9	0.025	0.015	0.9-1.2
Mo	Al	Cu	Nb	Ti	V	Ce
	0.05	0.3		+
N	O2	Pb	B	Other
	0.002

Mechanical Properties of steel grade 20Cr4

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)
273 (≥)	757 (≥)	32	13	24	Solution and Aging, Annealing, Ausaging, Q+T,etc	343

Physical Properties of steel grade 20Cr4

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
41	-	-			0.41	-
362	275	-	32.3	421		-
165	-	12	43.2			311	312

Heat Treatment of steel grade 20Cr4

Heat treated : 1321°C - 1743°C

Technological Curves of steel grade 20Cr4

No Curve

Available Suppliers

Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com

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