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America SAE EV9 Engine poppet valve information report and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: EV9 / EV 9
Category Grade Standard Region/Area Standard Content
Metals EV 9 SAE J 775 America Engine poppet valve information report

Chemical composition(mass fraction)(wt.%) of the EV 9

Element Min Max Similar
W 1.5000 3.0000 -
Si 0.3000 0.8000 -
S - 0.0300 -
P - 0.0450 -
Ni 12.0000 15.0000 -
Mo 0.2000 0.5000 -
Mn - 1.0000 -
Cr 12.0000 15.0000 -
C 0.3500 0.5000 -

Mechanical Properties of steel grade EV 9

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
255 (≥) 748 (≥) 14 41 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade EV 9

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
13 - -     0.34 -  
117 385 - 44.3 413   -  
339 - 31 23.2   244 342

Heat Treatment of steel grade EV 9

Heat treated : 1316°C - 1432°C

Technological Curves of steel grade EV 9

Cross Reference Table (Equivalent Grade) of EV 9

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