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X 15 CrNiSi 25 20

EU EU X15CrNiSi2520 Heat-resistant steels; technical terms of delivery and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X15CrNiSi2520 / X 15 CrNiSi 25 20
Category Grade Standard Region/Area Standard Content
Metals X 15 CrNiSi 25 20 EU 95 EU Heat-resistant steels; technical terms of delivery

Chemical composition(mass fraction)(wt.%) of the X 15 CrNiSi 25 20

Element Min Max Similar
Si 1.5000 2.5000 -
S - 0.0300 -
P - 0.0450 -
Ni 19.0000 22.0000 -
Mn - 2.0000 -
Cr 24.0000 26.0000 -
C - 0.2000 -

Mechanical Properties of steel grade X 15 CrNiSi 25 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)
344 (≥) 517 (≥) 24 34 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade X 15 CrNiSi 25 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
34 - -     0.13 -  
931 428 - 31.3 113   -  
347 - 42 13.2   142 141

Heat Treatment of steel grade X 15 CrNiSi 25 20

Heat treated : 1925°C - 1696°C

Technological Curves of steel grade X 15 CrNiSi 25 20

Cross Reference Table (Equivalent Grade) of X 15 CrNiSi 25 20

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