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X 80 CrSiNi 20

Italy UNI X80CrSiNi20 Hot rolled finished special alloyed steel products. Round bars for internal combustion engine valves and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X80CrSiNi20 / X 80 CrSiNi 20
Category Grade Standard Region/Area Standard Content
Metals X 80 CrSiNi 20 UNI 3992 Italy Hot rolled finished special alloyed steel products. Round bars for internal combustion engine valves

Chemical composition(mass fraction)(wt.%) of the X 80 CrSiNi 20

Element Min Max Similar

Mechanical Properties of steel grade X 80 CrSiNi 20

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)
321 (≥) 212 (≥) 21 11 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade X 80 CrSiNi 20

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
32 - -     0.43 -  
763 637 - 42.3 411   -  
829 - 43 24.2   233 114

Heat Treatment of steel grade X 80 CrSiNi 20

Heat treated : 1446°C - 1318°C

Technological Curves of steel grade X 80 CrSiNi 20

Cross Reference Table (Equivalent Grade) of X 80 CrSiNi 20

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