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

Location » Home » Grades > Stainless Steels > HNV8

UNS HNV8

Profile

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 705~416 σb/MPa
Yield Strength 985 σ 0.2 ≥/MPa
Elongation 17 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 172~282 -
HRC 30 -

Physical Properties

Thermal expansion 48-74 e-6/K
Thermal conductivity 67-58 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7181-7321 째C
Density 4056-5913 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