Sitemap | E-mail:sales@steelgs.com

SK4M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SK4M

Location » Home » Grades > Special Alloy > SK4M

Contact

+86-13880247006

E-mail: sales@longhaisteel.com

JIS SK4M

Profile

This page is mainly introduced the SK4M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SK4M,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SK4M

Steel Garde:SK4M
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Cold rolled special steel strip

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	768～096	σb/MPa
Yield Strength	461	σ 0.2 ≥/MPa
Elongation	36	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	336～610	-
HRC	30	-

Physical Properties

Thermal expansion	74-29	e-6/K
Thermal conductivity	26-94	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0778-7189	째C
Density	8966-9547	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)
SK4M 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