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SKS81M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS81M

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JIS SKS81M

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This page is mainly introduced the SKS81M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS81M,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKS81M

Steel Garde:SKS81M
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Cold rolled special steel strip

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	439～266	σb/MPa
Yield Strength	648	σ 0.2 ≥/MPa
Elongation	94	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	979～404	-
HRC	30	-

Physical Properties

Thermal expansion	01-73	e-6/K
Thermal conductivity	57-80	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1679-2978	째C
Density	5574-1012	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)
SKS81M 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