HNV4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HNV4

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UNS HNV4

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This page is mainly introduced the HNV4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HNV4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steel for intake valves

Cross Reference Table(Equivalent Materials):

Material Standard Country
X40CrSiMo10-2 AFNOR France
1.4731 AFNOR France

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.45 
Si 3.30 
Mn 0.40 
P  
S  
Cr 7.00 
Ni 1.00 

Mechanical Properties

Tensile strength 189~995 σb/MPa
Yield Strength 383 σ 0.2 ≥/MPa
Elongation 86 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 939~680 -
HRC 30 -

Physical Properties

Thermal expansion 67-77 e-6/K
Thermal conductivity 05-98 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8520-5433 째C
Density 5088-2483 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)
HNV4 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