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America SAE AF71 Special Purpose Alloys (Superalloys) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AF71 / AF71
Category Grade Standard Region/Area Standard Content
Metals AF71 SAE J 467B America Special Purpose Alloys (Superalloys)

Chemical composition(mass fraction)(wt.%) of the AF71

Element Min Max Similar
Ti 2.2000 2.7500 -
Si - 1.0000 -
S - 0.0400 -
P - 0.0400 -
Ni 41.0000 43.5000 -
Mn - 0.8000 -
Cr 4.9000 5.7500 -
C - 0.0600 -
Al 0.3000 0.8000 -
Ti 2.2000 2.7500 -
Si - 1.0000 -
S - 0.0400 -
P - 0.0400 -
Ni 41.0000 43.5000 -
Mn - 0.8000 -
Cr 4.9000 5.7500 -
C - 0.0600 -
Al 0.3000 0.8000 -

Mechanical Properties of steel grade AF71

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)
879 (≥) 839 (≥) 42 12 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade AF71

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 - -     0.21 -  
398 395 - 23.3 413   -  
236 - 41 23.2   144 234

Heat Treatment of steel grade AF71

Heat treated : 1435°C - 1235°C

Technological Curves of steel grade AF71

Cross Reference Table (Equivalent Grade) of AF71

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