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X 7 NiCrCoMo 54 20

Germany DIN X7NiCrCoMo5420 High alloyed NiCrMo steel and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals X 7 NiCrCoMo 54 20 -- Germany High alloyed NiCrMo steel

Chemical composition(mass fraction)(wt.%) of the X 7 NiCrCoMo 54 20

Element Min Max Similar

Mechanical Properties of steel grade X 7 NiCrCoMo 54 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)
484 (≥) 574 (≥) 21 21 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade X 7 NiCrCoMo 54 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 - -     0.23 -  
232 696 - 32.3 343   -  
846 - 21 34.2   121 423

Heat Treatment of steel grade X 7 NiCrCoMo 54 20

Heat treated : 1215°C - 1217°C

Technological Curves of steel grade X 7 NiCrCoMo 54 20

Cross Reference Table (Equivalent Grade) of X 7 NiCrCoMo 54 20

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