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Germany DIN 2.4638 High-temperature resisting NiCrMoW alloy and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 2.4638 / 2.4638
Category Grade Standard Region/Area Standard Content
Metals 2.4638 -- Germany High-temperature resisting NiCrMoW alloy

Chemical composition(mass fraction)(wt.%) of the 2.4638

Element Min Max Similar
W 2.5000 3.5000 -
V - 0.3500 -
Si - 0.0800 -
Ni 50.0000 - -
Mo 12.5000 14.5000 -
Mn - 0.5000 -
Cr 20.0000 22.0000 -
C - 0.0150 -

Mechanical Properties of steel grade 2.4638

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)
333 (≥) 858 (≥) 11 12 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade 2.4638

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
41 - -     0.44 -  
636 374 - 31.3 341   -  
991 - 22 24.2   432 434

Heat Treatment of steel grade 2.4638

Heat treated : 1215°C - 1253°C

Technological Curves of steel grade 2.4638

Cross Reference Table (Equivalent Grade) of 2.4638

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