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Industrial Annealing Services |
 Full industrial annealing solutions, annealing services is the process of slowly raising the temperature
about 50 ºC (90 ºF) above the Austenitic temperature line
A3 or line ACM in the case of Hypo eutectoid steels (steels with <
0.77% Carbon) and 50 ºC (90 ºF) into the Austenite-Cementite
region in the case of Hypereutectoid steels (steels with > 0.77%
Carbon).
Aneealing is held at this temperature for sufficient time for all the material to transform into Austenite or Austenite-Cementite as the case may be. It is then slowly cooled at the rate of about 20 ºC/hr (36
ºF/hr) in a furnace to about 50 ºC (90 ºF) into the
Ferrite-Cementite range. At this point, it can be cooled in room temperature
air with natural convection.
The grain structure has coarse Pearlite with ferrite or Cementite
(depending on whether hypo or hyper eutectoid). The steel becomes
soft and ductile.
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Industrial Annealing Services, Full Annealing solutions, Annealing services from India
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