ST40E chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ST40E

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JIS ST40E

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This page is mainly introduced the ST40E chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ST40E,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ST40E
Hardness quartile HRA:90
Bending strength frequency/MPa:2000
  • Steel Garde:ST40E
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material Standard Country
ST40E JIS Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 283~601 σb/MPa
Yield Strength 703 σ 0.2 ≥/MPa
Elongation 10 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 142~708 -
HRC 30 -

Physical Properties

Thermal expansion 11-62 e-6/K
Thermal conductivity 21-03 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0271-2472 째C
Density 3602-4852 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)
ST40E 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