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X 20 CrNi 25 4

Spain UNE X20CrNi254 Stainless steels. Technical delivery conditions for wire-rod and forgings for general purposes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X20CrNi254 / X 20 CrNi 25 4
Category Grade Standard Region/Area Standard Content
Metals X 20 CrNi 25 4 UNE 36016-1 Spain Stainless steels. Technical delivery conditions for wire-rod and forgings for general purposes

Chemical composition(mass fraction)(wt.%) of the X 20 CrNi 25 4

Element Min Max Similar
Si 0.8000 1.5000 -
S - 0.0300 -
P - 0.0450 -
Ni 3.0000 6.0000 -
N - 0.1000 -
Mn - 2.0000 -
Cr 24.0000 27.0000 -
C 0.1500 0.2500 -

Mechanical Properties of steel grade X 20 CrNi 25 4

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)
917 (≥) 558 (≥) 13 41 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade X 20 CrNi 25 4

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
14 - -     0.44 -  
463 532 - 13.3 313   -  
527 - 33 11.2   313 314

Heat Treatment of steel grade X 20 CrNi 25 4

Heat treated : 1964°C - 1761°C

Technological Curves of steel grade X 20 CrNi 25 4

Cross Reference Table (Equivalent Grade) of X 20 CrNi 25 4

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