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OLC70A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of OLC70A

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STAS/SR OLC70A

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This page is mainly introduced the OLC70A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of OLC70A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
OLC70A

Steel Garde:OLC70A
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Alloy structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	274～406	σb/MPa
Yield Strength	436	σ 0.2 ≥/MPa
Elongation	46	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	986～337	-
HRC	30	-

Physical Properties

Thermal expansion	26-20	e-6/K
Thermal conductivity	17-94	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7501-7714	째C
Density	8355-4500	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)
OLC70A 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