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SKH59 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKH59

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JIS SKH59

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This page is mainly introduced the SKH59 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKH59,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKH59

Steel Garde:SKH59
Type:Special Alloy
Country:Japan
Standard:JIS
Application:W-phase system high-speed tool steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	652～709	σb/MPa
Yield Strength	672	σ 0.2 ≥/MPa
Elongation	29	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	541～743	-
HRC	30	-

Physical Properties

Thermal expansion	51-81	e-6/K
Thermal conductivity	09-01	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1409-6745	째C
Density	2659-7884	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
SKH59 Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk