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SK3M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SK3M

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JIS SK3M

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This page is mainly introduced the SK3M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SK3M,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SK3M

Steel Garde:SK3M
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Cold rolled special steel strip

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	704～814	σb/MPa
Yield Strength	458	σ 0.2 ≥/MPa
Elongation	01	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	845～672	-
HRC	30	-

Physical Properties

Thermal expansion	80-50	e-6/K
Thermal conductivity	68-78	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4010-6480	째C
Density	5499-9279	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)
SK3M 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