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864 Grade 4 Class 3 Type 1

America SAE 864Grade4Class3Type1 Sintered powder metal parts: Ferrous and Mechanical Properties, Chemical Element, Cross Reference.

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

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

Element Min Max Similar
Other - 2.0000 -
Cu 18.0000 22.0000 -
C 0.6000 0.9000 -

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

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)
938 (≥) 895 (≥) 22 22 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

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

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 - -     0.11 -  
624 696 - 31.3 322   -  
419 - 12 31.2   142 143

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

Heat treated : 1574°C - 1781°C

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

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

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