SMnC 420H

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#SMnC #420H

Description

SMnC 420H Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SMnC 420H

Category	Type	Steel Grade
Steel Grades	Carbon Steel	SMnC 420H
		SNCM447
		SNCM616
		SNCM625
		SNCM630
		SNCM815
		SACM645
		SMn420H
		SMn433H
		SMn438H
		SMn443H

Chemical composition(mass fraction)(wt.%) of the SMnC 420H

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.16-0.23	0.15-0.35	1.15-1.55	0.03	0.03	0.35-0.7	≤0.25
Mo	Al	Cu	Nb	Ti	V	Ce
		≤0.3
N	Co	Pb	B	Other

Mechanical Properties of steel grade SMnC 420H

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)
655 (≥)	695 (≥)	22	41	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	334

Physical Properties of steel grade SMnC 420H

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
13	-	-			0.32	-
825	747	-	31.3	231		-
451	-	41	13.2			333	411

Heat Treatment of steel grade SMnC 420H

Heat treated : 1744°C - 1133°C

Technological Curves of steel grade SMnC 420H

No Curve

Cross Reference Table (Equivalent Grade) of SMnC 420H

Grade	Country	Application
SMnC420H	China	China Taiwan Structural steel
SMnC443H	China	China Taiwan Structural steel
SMnC420	China	China Taiwan Structural steel
SMnC443	China	China Taiwan Structural steel
SMn420H	China	China Taiwan Structural steel
SCr420H	China	China Taiwan Structural steel
SNCM420H	China	China Taiwan Structural steel
SCM420H	China	China Taiwan Structural steel

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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