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SK1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SK1

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JIS SK1

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This page is mainly introduced the SK1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SK1,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SK1
JIS G4401(2000)

Steel Garde:SK1
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Carbon tool steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SK140	JIS	Japan
SK120	JIS	Japan
SK105	JIS	Japan
SK4	CNS	China
SK4	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	821～265	σb/MPa
Yield Strength	159	σ 0.2 ≥/MPa
Elongation	07	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	217～957	-
HRC	30	-

Physical Properties

Thermal expansion	30-36	e-6/K
Thermal conductivity	57-81	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2939-8081	째C
Density	2617-7278	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)
SK1 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