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Description

USA UNS HEV2 Specialsteel Steel for exhaust valves and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: HEV2
Category Class Grade Standard Country Application
Steel GradesSpecialsteel HEV2 UNS USA Steel for exhaust valves

Chemical composition(mass fraction)(wt.%) of the HEV2

C Si Mn P S Cr Ni
0.04 - ≥ 0.08 - ≥ 2.25 - ≥ ≤ ≥ ≤ ≥ 16.0 - ≥ ≤remaining

Mechanical Properties of steel grade HEV2

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)
852 (≥) 932 (≥) 31 23 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade HEV2

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
31 - -     0.23 -  
236 884 - 21.3 213   -  
222 - 43 23.2   144 424

Heat Treatment of steel grade HEV2

Heat treated : 1451°C - 1369°C

Technological Curves of steel grade HEV2

Cross Reference Table (Equivalent Grade) of HEV2

Grade Standard Country Application
HEV2
SAE HEV2
SAE HEV2
N07002
UNS N07002
UNS N07002

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