SKH 4

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#SKH #4

Description

SKH 4 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: SKH 4

Category	Type	Steel Grade
Steel Grades	Tool Steel	SKH 4
		32CrMoV3-3
		SKD 8
		X38CrCoWV4-4-4
		SKT 3
		SKT 4
		55NiCrMoV7
		SKT 6
		45NiCrMo16
		SKH 2
		SKH 3

Chemical composition(mass fraction)(wt.%) of the SKH 4

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.73-0.83	0.45	0.4	0.03	0.03	3.8-4.5
Mo	Al	Cu	Nb	W	V	Ce
				17.0-19.0	1.0-1.5
N	Co	Pb	B	Other
	9.0-11.0

Mechanical Properties of steel grade SKH 4

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)
636 (≥)	458 (≥)	23	43	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	323

Physical Properties of steel grade SKH 4

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
32	-	-			0.31	-
824	578	-	44.3	141		-
514	-	23	12.2			241	211

Heat Treatment of steel grade SKH 4

Heat treated : 1384°C - 1617°C

Technological Curves of steel grade SKH 4

No Curve

Cross Reference Table (Equivalent Grade) of SKH 4

Grade	Standard	Country	Application
SKH2	JIS	Japan	Tungsten series high speed tool steel
SKH3	JIS	Japan	Tungsten series high speed tool steel
SKH4	JIS	Japan	Tungsten series high speed tool steel
SKH10	JIS	Japan	Tungsten series high speed tool steel
SKH40	JIS	Japan	Powder metallurgy high-speed tool steel
SKH50	JIS	Japan	W-phase system high-speed tool steel
SKH51	JIS	Japan	W-phase system high-speed tool steel
SKH52	JIS	Japan	W-phase system high-speed tool steel
SKH53	JIS	Japan	W-phase system high-speed tool steel
SKH54	JIS	Japan	W-phase system high-speed tool steel
SKH55	JIS	Japan	W-phase system high-speed tool steel
SKH56	JIS	Japan	W-phase system high-speed tool steel
SKH57	JIS	Japan	W-phase system high-speed tool steel
SKH58	JIS	Japan	W-phase system high-speed tool steel
SKH59	JIS	Japan	W-phase system high-speed tool steel
SKH3		Sweden	Carbide for cutting tools
SKH3		Sweden	Carbide for cutting tools
SKH59
SKH59
SKH53		China	Carbide for cutting tools

Available Suppliers

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Rfq.: sales@longhaisteel.com

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