4820H

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#4820H

Description

4820H Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 4820H

Category	Type	Steel Grade
Steel Grades	Carbon Steel	4820H
		18CrNiMo7-6
		B31
		18NiCrMo14-6
		B32
		16NiCrMo16-5
		4118H
		4320H
		4620H
		4720H
		4817H

Chemical composition(mass fraction)(wt.%) of the 4820H

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17-0.23	0.15-0.35	0.4-0.8	0.025	0.015		3.2-3.8
Mo	Al	Cu	Nb	Ti	V	Ce
0.2-0.3	≤ 0.05	≤0.3		+
N	O2	Pb	B	Other
	≤0.002

Mechanical Properties of steel grade 4820H

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)
366 (≥)	151 (≥)	12	31	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	114

Physical Properties of steel grade 4820H

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	-	-			0.12	-
912	525	-	13.3	422		-
881	-	41	13.2			311	134

Heat Treatment of steel grade 4820H

Heat treated : 1297°C - 1312°C

Technological Curves of steel grade 4820H

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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