EV3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EV3

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UNS EV3

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This page is mainly introduced the EV3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EV3,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steel for exhaust valves

Cross Reference Table(Equivalent Materials):

Material Standard Country
S63016 AISI USA
HEV3 UNS USA
N07751 AISI USA
Z20CN21-12Az AFNOR France

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.20 
Si 1.00 
Mn 1.30 
Cr 21.0 
Ni 11.5 

Mechanical Properties

Tensile strength 644~119 σb/MPa
Yield Strength 176 σ 0.2 ≥/MPa
Elongation 53 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 483~791 -
HRC 30 -

Physical Properties

Thermal expansion 12-41 e-6/K
Thermal conductivity 32-43 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6907-7939 째C
Density 8356-9733 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)
EV3 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