ST30E chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ST30E

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JIS ST30E

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This page is mainly introduced the ST30E chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ST30E,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ST30E
Hardness quartile HRA:91
Bending strength frequency/MPa:1800
  • Steel Garde:ST30E
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material Standard Country
ST30E JIS Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 733~545 σb/MPa
Yield Strength 786 σ 0.2 ≥/MPa
Elongation 67 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 702~157 -
HRC 30 -

Physical Properties

Thermal expansion 16-16 e-6/K
Thermal conductivity 76-29 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9006-2861 째C
Density 6962-7100 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)
ST30E 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