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SKT4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKT4

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JIS SKT4

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This page is mainly introduced the SKT4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKT4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKT4

Steel Garde:SKT4
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Hot-work die steel

Relevant products:

1.2714(L6, 55NiCr...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
1.2714	DIN	Germany

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	318～840	σb/MPa
Yield Strength	230	σ 0.2 ≥/MPa
Elongation	64	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	870～706	-
HRC	30	-

Physical Properties

Thermal expansion	37-80	e-6/K
Thermal conductivity	47-59	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7630-9644	째C
Density	4804-5968	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)
SKT4 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