SMn438

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#SMn438

Description

SMn438 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SMn438

Category	Type	Steel Grade
Steel Grades	Carbon Steel	SMn438
		S40C
		S43C
		S45C
		S48C
		S50C
		S53C
		S55C
		S58C
		SMn420
		SMn433

Chemical composition(mass fraction)(wt.%) of the SMn438

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.35-0.41	0.15-0.35	1.35-1.65	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 SMn438

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)
875 (≥)	814 (≥)	42	22	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	421

Physical Properties of steel grade SMn438

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
23	-	-			0.33	-
559	445	-	21.3	214		-
755	-	43	43.2			131	133

Heat Treatment of steel grade SMn438

Heat treated : 1326°C - 1754°C

Technological Curves of steel grade SMn438

No Curve

Cross Reference Table (Equivalent Grade) of SMn438

Grade	Standard	Country	Application
SMn438H		China	China Taiwan Structural steel
SMn438		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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