OL52.4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of OL52.4

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STAS/SR OL52.4

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This page is mainly introduced the OL52.4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of OL52.4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
OL52.4
  • Steel Garde:OL52.4
  • Type:Special Alloy
  • Country:Romania
  • Standard:STAS/SR
  • Application:Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 677~986 σb/MPa
Yield Strength 260 σ 0.2 ≥/MPa
Elongation 52 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 779~376 -
HRC 30 -

Physical Properties

Thermal expansion 49-95 e-6/K
Thermal conductivity 37-41 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2587-1762 째C
Density 4533-1988 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)
OL52.4 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