EVl7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EVl7

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UNS EVl7

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This page is mainly introduced the EVl7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EVl7,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   0.10
Si   1.00
Mn   2.00
P   0.045
S   0.030
Cr 17.0  19.0
Ni 8.00  10.0
Cu 3.00  4.00

Mechanical Properties

Tensile strength 248~254 σb/MPa
Yield Strength 583 σ 0.2 ≥/MPa
Elongation 77 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 661~007 -
HRC 30 -

Physical Properties

Thermal expansion 64-19 e-6/K
Thermal conductivity 73-89 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6371-1292 째C
Density 7864-1029 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)
EVl7 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