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SKS7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS7

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JIS SKS7

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This page is mainly introduced the SKS7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS7,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKS7

Steel Garde:SKS7
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Alloy tool steel - Tool steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SKS7M	JIS	Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	409～255	σb/MPa
Yield Strength	760	σ 0.2 ≥/MPa
Elongation	42	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	569～915	-
HRC	30	-

Physical Properties

Thermal expansion	84-56	e-6/K
Thermal conductivity	12-48	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4904-8004	째C
Density	5449-0704	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)
SKS7 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