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864 Grade 1 Class 3 Type 4

America SAE 864Grade1Class3Type4 Sintered powder metal parts: Ferrous and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals 864 Grade 1 Class 3 Type 4 SAE J 471 America Sintered powder metal parts: Ferrous

Chemical composition(mass fraction)(wt.%) of the 864 Grade 1 Class 3 Type 4

Element Min Max Similar

Mechanical Properties of steel grade 864 Grade 1 Class 3 Type 4

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)
668 (≥) 359 (≥) 31 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade 864 Grade 1 Class 3 Type 4

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
33 - -     0.23 -  
422 712 - 32.3 132   -  
456 - 32 43.2   414 323

Heat Treatment of steel grade 864 Grade 1 Class 3 Type 4

Heat treated : 1386°C - 1711°C

Technological Curves of steel grade 864 Grade 1 Class 3 Type 4

Cross Reference Table (Equivalent Grade) of 864 Grade 1 Class 3 Type 4

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