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America SAE 8660 Estimated mechanical properties and machinability of steel bars and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 8660 / 8660
Category Grade Standard Region/Area Standard Content
Metals 8660 SAE J 1397 America Estimated mechanical properties and machinability of steel bars

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

Element Min Max Similar

Mechanical Properties of steel grade 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)
883 (≥) 827 (≥) 33 24 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade 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
31 - -     0.12 -  
458 586 - 24.3 441   -  
311 - 41 43.2   423 341

Heat Treatment of steel grade 8660

Heat treated : 1226°C - 1381°C

Technological Curves of steel grade 8660

Cross Reference Table (Equivalent Grade) of 8660

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