70A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 70A

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CSA 70A

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This page is mainly introduced the 70A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 70A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
70A
  • Steel Garde:70A
  • Type:Special Alloy
  • Country:Canada
  • Standard:CSA
  • Application:Canada Engineering and steel structure

Cross Reference Table(Equivalent Materials):

Material Standard Country
OLC70A STAS/SR Romania
70AT CSA Canada

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 382~163 σb/MPa
Yield Strength 043 σ 0.2 ≥/MPa
Elongation 04 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 010~068 -
HRC 30 -

Physical Properties

Thermal expansion 71-91 e-6/K
Thermal conductivity 93-27 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7436-2622 째C
Density 4909-2034 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)
70A 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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