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SKD8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKD8

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JIS SKD8

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This page is mainly introduced the SKD8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKD8,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKD8

Steel Garde:SKD8
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Hot-work die steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	750～753	σb/MPa
Yield Strength	794	σ 0.2 ≥/MPa
Elongation	07	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	109～297	-
HRC	30	-

Physical Properties

Thermal expansion	09-76	e-6/K
Thermal conductivity	71-07	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4324-9881	째C
Density	6100-4677	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)
SKD8 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