St03FK4a chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of St03FK4a

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ONORM St03FK4a

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This page is mainly introduced the St03FK4a chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of St03FK4a,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
St03FK4a
  • Steel Garde:St03FK4a
  • Type:Special Alloy
  • Country:Austria
  • Standard:ONORM
  • Application:Austrian structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 673~259 σb/MPa
Yield Strength 464 σ 0.2 ≥/MPa
Elongation 36 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 408~581 -
HRC 30 -

Physical Properties

Thermal expansion 24-32 e-6/K
Thermal conductivity 01-22 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6709-5019 째C
Density 5762-6547 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)
St03FK4a 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

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