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 513~666 σb/MPa
Yield Strength 799 σ 0.2 ≥/MPa
Elongation 51 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 157~919 -
HRC 30 -

Physical Properties

Thermal expansion 24-85 e-6/K
Thermal conductivity 23-23 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8957-9446 째C
Density 1578-6295 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

Technical specification/standard for download