SNCM420

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#SNCM420

Description

SNCM420 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SNCM420

Category	Type	Steel Grade
Steel Grades	Carbon Steel	SNCM420
		SCM445
		SCM822
		SNC236
		SNC415
		SNC631
		SNC815
		SNC836
		SNCM220
		SNCM240
		SNCM415

Chemical composition(mass fraction)(wt.%) of the SNCM420

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17-0.23	0.15-0.35	0.4-0.7	0.03	0.03	0.4-0.6	1.6-2.0
Mo	Al	Cu	Nb	Ti	V	Ce
0.15-0.3		≤0.3
N	Co	Pb	B	Other

Mechanical Properties of steel grade SNCM420

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)
457 (≥)	656 (≥)	23	32	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	344

Physical Properties of steel grade SNCM420

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
14	-	-			0.13	-
298	179	-	24.3	211		-
982	-	33	44.2			431	142

Heat Treatment of steel grade SNCM420

Heat treated : 1442°C - 1282°C

Technological Curves of steel grade SNCM420

No Curve

Cross Reference Table (Equivalent Grade) of SNCM420

Grade	Standard	Country	Application
SNCM420H		China	China Taiwan Structural steel
SNCM420		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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