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X 5 NiCrAlTi 31 20 +RA

EU EN X5NiCrAlTi3120+RA Flat products made of steels for pressure purposes - part 7: stainless steels and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals X 5 NiCrAlTi 31 20 +RA EN 10028-7 EU Flat products made of steels for pressure purposes - part 7: stainless steels

Chemical composition(mass fraction)(wt.%) of the X 5 NiCrAlTi 31 20 +RA

Element Min Max Similar
Ti 0.2000 0.5000 -
Si - 0.7000 -
S - 0.0100 -
P - 0.0150 -
Ni 30.0000 32.5000 -
Nb - 0.1000 -
N - 0.0300 -
Mn - 1.5000 -
Cu - 0.5000 -
Cr 19.0000 22.0000 -
Co - 0.5000 -
C 0.0300 0.0800 -
Al 0.2000 0.5000 -
Ti 0.2000 0.5000 -
Si - 0.7000 -
S - 0.0100 -
P - 0.0150 -
Ni+Co 30.0000 32.5000 -
Ni 30.0000 32.5000 -
Nb - 0.1000 -
Mn - 1.5000 -
Cu - 0.5000 -
Cr 19.0000 22.0000 -
Co - 0.5000 -
C 0.0300 0.0800 -
Al + Ti - 0.7000 -
Al 0.2000 0.5000 -
Ti 0.2000 0.5000 -
Si - 0.7000 -
S - 0.0100 -
P - 0.0150 -
Ni+Co 30.0000 32.5000 -
Ni 30.0000 32.5000 -
Nb - 0.1000 -
N - 0.0300 -
Mn - 1.5000 -
Cu - 0.5000 -
Cr 19.0000 22.0000 -
Co - 0.5000 -
C 0.0300 0.0800 -
Al + Ti - 0.7000 -
Al 0.2000 0.5000 -

Mechanical Properties of steel grade X 5 NiCrAlTi 31 20 +RA

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)
274 (≥) 963 (≥) 24 44 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade X 5 NiCrAlTi 31 20 +RA

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
44 - -     0.11 -  
382 577 - 41.3 122   -  
195 - 22 34.2   431 212

Heat Treatment of steel grade X 5 NiCrAlTi 31 20 +RA

Heat treated : 1483°C - 1619°C

Technological Curves of steel grade X 5 NiCrAlTi 31 20 +RA

Cross Reference Table (Equivalent Grade) of X 5 NiCrAlTi 31 20 +RA

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