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AISI 8660

America AISI AISI8660 Former SAE Standard and Former SAE Ex-Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AISI8660 / AISI 8660
Category Grade Standard Region/Area Standard Content
Metals AISI 8660 SAE J 1249 America Former SAE Standard and Former SAE Ex-Steels

Chemical composition(mass fraction)(wt.%) of the AISI 8660

Element Min Max Similar
C 0.5600 0.6400 -
Mn 0.7500 1.0000 -
P - 0.0350 -
S - 0.0400 -
Si 0.1500 0.3500 -
Ni 0.4000 0.7000 -
Cr 0.4000 0.6000 -
Mo 0.1500 0.2500 -
Cu - 0.3500 -
Pb - - -
C 0.5500 0.6500 -
Mn 0.7500 1.0000 -
P - 0.0250 -
S - 0.0250 -
Si 0.1500 0.3000 -
Ni 0.4000 0.7000 -
Cr 0.4000 0.6000 -
Mo 0.1500 0.2500 -
C 0.5600 0.6400 -
Mn 0.7500 1.0000 -
P - 0.0350 -
S - 0.0400 -
Si 0.1500 0.3500 -
Ni 0.4000 0.7000 -
Cr 0.4000 0.6000 -
Mo 0.1500 0.2500 -

Mechanical Properties of steel grade AISI 8660

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)
318 (≥) 242 (≥) 11 32 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade AISI 8660

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
44 - -     0.23 -  
699 793 - 41.3 112   -  
281 - 42 11.2   131 434

Heat Treatment of steel grade AISI 8660

Heat treated : 1625°C - 1225°C

Technological Curves of steel grade AISI 8660

Cross Reference Table (Equivalent Grade) of AISI 8660

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