SK4M

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#SK4M

Description

SK4M Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: SK4M

Category	Type	Steel Grade
Steel Grades	Tool Steel	SK4M
		SKH 55
		SKH 56
		SKH 57
		SKH 58
		SKH 59
		SK2M
		SK120M
		SK105M
		SK3M
		SK95M

Chemical composition(mass fraction)(wt.%) of the SK4M

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.9-1.0	0.35	0.5	0.03	0.03	≤0.3	≤0.25
Mo	Al	Cu	Nb	Ti	V	Ce
		≤0.25
N	Co	Pb	B	Other

Mechanical Properties of steel grade SK4M

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)
422 (≥)	722 (≥)	42	22	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	422

Physical Properties of steel grade SK4M

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
34	-	-			0.11	-
236	812	-	31.3	214		-
755	-	44	44.2			241	124

Heat Treatment of steel grade SK4M

Heat treated : 1938°C - 1363°C

Technological Curves of steel grade SK4M

No Curve

Cross Reference Table (Equivalent Grade) of SK4M

Grade	Standard	Country	Application
SK4M	JIS	Japan	Cold rolled special steel strip

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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Stainless Steels

Tube/Pipe

Steel Profiles

Cold rolled/hot rolled

Wire rod

Quality special steel

Superalloy & High Temperature Alloy