St70F chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of St70F

Location » Home » Grades > Special Alloy > St70F

ONORM St70F

Profile

This page is mainly introduced the St70F chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of St70F,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
St70F
  • Steel Garde:St70F
  • Type:Special Alloy
  • Country:Austria
  • Standard:ONORM
  • Application:Austrian structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 720~238 σb/MPa
Yield Strength 156 σ 0.2 ≥/MPa
Elongation 86 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 388~670 -
HRC 30 -

Physical Properties

Thermal expansion 99-73 e-6/K
Thermal conductivity 88-93 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9785-1256 째C
Density 2003-4995 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)
St70F 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

Hot keywords:St70F
Previous: St60F
Next: St02F