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X 68 NiMnCrVNb 12-5

Germany DIN X68NiMnCrVNb12-5 High alloyed NiMnCr steel and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals X 68 NiMnCrVNb 12-5 -- Germany High alloyed NiMnCr steel

Chemical composition(mass fraction)(wt.%) of the X 68 NiMnCrVNb 12-5

Element Min Max Similar

Mechanical Properties of steel grade X 68 NiMnCrVNb 12-5

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)
298 (≥) 747 (≥) 24 31 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade X 68 NiMnCrVNb 12-5

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
32 - -     0.34 -  
799 814 - 34.3 411   -  
223 - 11 32.2   314 133

Heat Treatment of steel grade X 68 NiMnCrVNb 12-5

Heat treated : 1148°C - 1622°C

Technological Curves of steel grade X 68 NiMnCrVNb 12-5

Cross Reference Table (Equivalent Grade) of X 68 NiMnCrVNb 12-5

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