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X 15 CrNiSi 25 21

EU EN X15CrNiSi2521 Heat resisting steels and nickel alloys and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X15CrNiSi2521 / X 15 CrNiSi 25 21
Category Grade Standard Region/Area Standard Content
Metals X 15 CrNiSi 25 21 EN 10095 EU Heat resisting steels and nickel alloys

Chemical composition(mass fraction)(wt.%) of the X 15 CrNiSi 25 21

Element Min Max Similar
Si 1.5000 2.5000 -
S - 0.0150 -
P - 0.0450 -
Ni 19.0000 22.0000 -
N - 0.1100 -
Mn - 2.0000 -
Cr 24.0000 26.0000 -
C - 0.2000 -

Mechanical Properties of steel grade X 15 CrNiSi 25 21

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)
148 (≥) 681 (≥) 41 21 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade X 15 CrNiSi 25 21

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
33 - -     0.12 -  
777 433 - 24.3 334   -  
499 - 13 11.2   342 324

Heat Treatment of steel grade X 15 CrNiSi 25 21

Heat treated : 1564°C - 1164°C

Technological Curves of steel grade X 15 CrNiSi 25 21

Cross Reference Table (Equivalent Grade) of X 15 CrNiSi 25 21

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