AF71 Stainless Steels to SAE J 467 (1968)

AF71 - Specification & Application

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

Special Purpose Alloys ("Superalloys")

Chemical composition(wt.%) of AF71 grade: to SAE J 467 (1968)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.30
Si - 0.30
Mn - 18.00
P - -
S - -
Ni - -
Cr - 12.50
Al - -
Cu - -
Ti - -
Fe - remaining
N - 0.20
Mo - 3.00
W - -
V - 0.90
B - 0.20

AF71 - Detail

Special Purpose Alloys ("Superalloys")

Mechanical properties of grade AF71 SAE J 467 (1968)

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
155 (≥) 851 (≥) 43 24 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical properties of grade AF71 SAE J 467 (1968)

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
129 (≥) 767 (≥) 23 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 412
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
757 481 728

Equivalent Grade

Equivalent Products

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