EN X7Ni9 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EN X7Ni9

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EN EN X7Ni9

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This page is mainly introduced the EN X7Ni9 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EN X7Ni9,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Euronorm Structural steel, EN X7Ni9
  • Steel Garde:EN X7Ni9
  • Type:Special Alloy
  • Country:Euronorm
  • Standard:EN
  • Application:Euronorm Structural steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
X7Ni9 UNE Spain

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 514~758 σb/MPa
Yield Strength 246 σ 0.2 ≥/MPa
Elongation 29 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 453~625 -
HRC 30 -

Physical Properties

Thermal expansion 55-90 e-6/K
Thermal conductivity 88-59 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7366-8253 째C
Density 5307-1653 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)
EN X7Ni9 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