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SKS4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS4

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JIS SKS4

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This page is mainly introduced the SKS4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKS4

Steel Garde:SKS4
Type:Special Alloy
Country:Japan
Standard:JIS
Application:shock-resistant steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SKS41	JIS	Japan
SKS43	JIS	Japan
SKS44	JIS	Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	473～434	σb/MPa
Yield Strength	998	σ 0.2 ≥/MPa
Elongation	92	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	425～502	-
HRC	30	-

Physical Properties

Thermal expansion	89-53	e-6/K
Thermal conductivity	41-19	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0101-5709	째C
Density	5732-8550	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)
SKS4 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