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Description

USA UNS EV2 Specialsteel Steel for exhaust valves and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: EV2
Category Class Grade Standard Country Application
Steel GradesSpecialsteel EV2 UNS USA Steel for exhaust valves

Chemical composition(mass fraction)(wt.%) of the EV2

C Si Mn Cr Ni Mo
0.40 - ≥ 0.80 - ≥ 4.30 - ≥ 24.0 - ≥ 3.80 - ≥ 1.40 - ≥

Mechanical Properties of steel grade EV2

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)
361 (≥) 525 (≥) 44 31 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade EV2

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
34 - -     0.32 -  
828 582 - 21.3 112   -  
887 - 41 12.2   231 213

Heat Treatment of steel grade EV2

Heat treated : 1452°C - 1583°C

Technological Curves of steel grade EV2


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