OSC7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of OSC7

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STAS/SR OSC7

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This page is mainly introduced the OSC7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of OSC7,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
OSC7
  • Steel Garde:OSC7
  • Type:Special Alloy
  • Country:Romania
  • Standard:STAS/SR
  • Application:tool steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 784~481 σb/MPa
Yield Strength 110 σ 0.2 ≥/MPa
Elongation 60 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 599~833 -
HRC 30 -

Physical Properties

Thermal expansion 06-07 e-6/K
Thermal conductivity 45-65 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2298-2673 째C
Density 4255-1447 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)
OSC7 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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