Sitemap | E-mail:sales@steelgs.com

SKD4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKD4

Location » Home » Grades > Special Alloy > SKD4

Contact

+86-13880247006

E-mail: sales@longhaisteel.com

JIS SKD4

Profile

This page is mainly introduced the SKD4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKD4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKD4

Steel Garde:SKD4
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Hot-work die steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	839～857	σb/MPa
Yield Strength	700	σ 0.2 ≥/MPa
Elongation	35	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	806～226	-
HRC	30	-

Physical Properties

Thermal expansion	67-83	e-6/K
Thermal conductivity	18-22	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2448-4662	째C
Density	3765-3413	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)
SKD4 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