C71U chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of C71U

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UNE C71U

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This page is mainly introduced the C71U chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of C71U,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
C71U
  • Steel Garde:C71U
  • Type:Special Alloy
  • Country:Spain
  • Standard:UNE
  • Application:Spain structural alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 586~890 σb/MPa
Yield Strength 948 σ 0.2 ≥/MPa
Elongation 82 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 467~333 -
HRC 30 -

Physical Properties

Thermal expansion 97-30 e-6/K
Thermal conductivity 36-90 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1223-4282 째C
Density 8805-0781 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)
C71U 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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