EV2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EV2

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UNS EV2

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This page is mainly introduced the EV2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EV2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steel for exhaust valves

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.40 
Si 0.80 
Mn 4.30 
Cr 24.0 
Ni 3.80 
Mo 1.40 

Mechanical Properties

Tensile strength 867~716 σb/MPa
Yield Strength 043 σ 0.2 ≥/MPa
Elongation 21 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 995~325 -
HRC 30 -

Physical Properties

Thermal expansion 39-70 e-6/K
Thermal conductivity 56-13 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4325-8916 째C
Density 7379-6858 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)
EV2 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

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