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X 2 NiCrMoCuN 20 18

Germany DIN X2NiCrMoCuN2018 High alloyed NiCrMoCu steel and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals X 2 NiCrMoCuN 20 18 -- Germany High alloyed NiCrMoCu steel

Chemical composition(mass fraction)(wt.%) of the X 2 NiCrMoCuN 20 18

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0450 -
Ni 19.0000 21.0000 -
N 0.0800 0.1500 -
Mo 2.0000 2.5000 -
Mn - 2.0000 -
Cu 1.8000 2.2000 -
Cr 16.5000 18.5000 -
C - 0.0300 -

Mechanical Properties of steel grade X 2 NiCrMoCuN 20 18

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)
817 (≥) 388 (≥) 14 33 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade X 2 NiCrMoCuN 20 18

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
23 - -     0.12 -  
611 726 - 33.3 321   -  
715 - 14 24.2   323 212

Heat Treatment of steel grade X 2 NiCrMoCuN 20 18

Heat treated : 1888°C - 1145°C

Technological Curves of steel grade X 2 NiCrMoCuN 20 18

Cross Reference Table (Equivalent Grade) of X 2 NiCrMoCuN 20 18

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