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SKH51 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKH51

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JIS SKH51

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This page is mainly introduced the SKH51 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKH51,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKH51

Steel Garde:SKH51
Type:Special Alloy
Country:Japan
Standard:JIS
Application:W-phase system high-speed tool steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	143～627	σb/MPa
Yield Strength	323	σ 0.2 ≥/MPa
Elongation	32	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	656～990	-
HRC	30	-

Physical Properties

Thermal expansion	77-07	e-6/K
Thermal conductivity	33-16	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5662-6294	째C
Density	2257-3476	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)
SKH51 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