HNV8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HNV8

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UNS HNV8

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This page is mainly introduced the HNV8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HNV8,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steel for intake valves

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.20  0.25
Si   0.50
Mn 0.50  1.00
P   0.040
S   0.025
Cr 11.0  12.5
Ni 0.50  1.00
Mo 0.90  1.25
W 0.90  1.25

Mechanical Properties

Tensile strength 193~166 σb/MPa
Yield Strength 877 σ 0.2 ≥/MPa
Elongation 44 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 799~271 -
HRC 30 -

Physical Properties

Thermal expansion 41-52 e-6/K
Thermal conductivity 87-10 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6743-3744 째C
Density 0778-3934 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)
HNV8 Stainless Steels 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