SMn438H

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#SMn438H

Description

SMn438H Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SMn438H

Category	Type	Steel Grade
Steel Grades	Carbon Steel	SMn438H
		SNCM431
		SNCM439
		SNCM447
		SNCM616
		SNCM625
		SNCM630
		SNCM815
		SACM645
		SMn420H
		SMn433H

Chemical composition(mass fraction)(wt.%) of the SMn438H

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.34-0.41	0.15-0.35	1.3-1.7	0.03	0.03	≤0.35	≤0.25
Mo	Al	Cu	Nb	Ti	V	Ce
		≤0.3
N	Co	Pb	B	Other

Mechanical Properties of steel grade SMn438H

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)
446 (≥)	688 (≥)	23	32	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	331

Physical Properties of steel grade SMn438H

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
42	-	-			0.32	-
645	511	-	43.3	444		-
374	-	22	33.2			431	131

Heat Treatment of steel grade SMn438H

Heat treated : 1892°C - 1322°C

Technological Curves of steel grade SMn438H

No Curve

Cross Reference Table (Equivalent Grade) of SMn438H

Grade	Standard	Country	Application
SMn438H		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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