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Description

USA UNS SAE J 467 (1968), AF71 Specialsteel Special Purpose Alloys ("Superalloys") and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: AF71
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel AF71 Precipitation-Hardening UNS USA Special Purpose Alloys ("Superalloys")

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

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo W V B
≤0.30 ≤0.30 ≤18.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤12.50 ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤0.20 ≤3.00 ≤ ≥ ≤0.90 ≤0.20

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)
463 (≥) 758 (≥) 22 22 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

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
21 - -     0.12 -  
483 975 - 21.3 114   -  
591 - 12 44.2   314 242

Heat Treatment of steel grade AF71

Heat treated : 1578°C - 1551°C

Technological Curves of steel grade AF71

Cross Reference Table (Equivalent Grade) of AF71

Grade Standard Country Application
AF-71

Relevant standard of AF71

SAE J 467 (1968) Special Purpose Alloys ("Superalloys") SAE-J-467-(1968).pdf

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