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 975~993 σb/MPa
Yield Strength 545 σ 0.2 ≥/MPa
Elongation 37 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 031~577 -
HRC 30 -

Physical Properties

Thermal expansion 84-21 e-6/K
Thermal conductivity 73-72 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4036-0011 째C
Density 1712-5641 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