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America UNS K66979 铁镍基超耐热合金 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K66979 / K66979
Category Grade Standard Region/Area Standard Content
Metals K66979 -- America 铁镍基超耐热合金

Chemical composition(mass fraction)(wt.%) of the K66979

Element Min Max Similar

Mechanical Properties of steel grade K66979

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)
737 (≥) 651 (≥) 31 23 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade K66979

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 - -     0.33 -  
343 174 - 23.3 211   -  
323 - 34 44.2   142 111

Heat Treatment of steel grade K66979

Heat treated : 1557°C - 1577°C

Technological Curves of steel grade K66979

Cross Reference Table (Equivalent Grade) of K66979

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