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ST15E chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ST15E

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JIS ST15E

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This page is mainly introduced the ST15E chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ST15E,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ST15E
Hardness quartile HRA:91.5
Bending strength frequency/MPa:1550

Steel Garde:ST15E
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
ST15E	JIS	Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	657～354	σb/MPa
Yield Strength	135	σ 0.2 ≥/MPa
Elongation	66	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	573～774	-
HRC	30	-

Physical Properties

Thermal expansion	58-68	e-6/K
Thermal conductivity	59-61	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4255-0439	째C
Density	7913-3125	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)
ST15E 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