What does the glow temperature mean



Under glow In materials science, one understands the heating, soaking and cooling of semi-finished products and workpieces in order to achieve defined material properties. Annealing is a branch of heat treatment.

To do this, the annealing process is divided into at least 3 phases:

  1. Warming up (also warming up or warming up)
    In the warm-up phase, the workpiece is brought to the holding temperature.
  2. Hold
    In the holding phase, the workpiece is held at a constant holding temperature. It serves to equalize the temperature in the workpiece and to establish equilibrium between chemical and physical processes in the material. The duration necessary for this is called the holding time and depends not only on the result to be achieved but also on the workpiece geometry and the arrangement of the workpieces in the annealing furnace or the heat treatment system.
  3. cooling down
    In the cooling phase, the workpiece is brought back to ambient temperature.

It may be necessary to adhere to specific heating and cooling speeds in both the warm-up and cool-down phases.

Materials for high requirements sometimes require the 3 phases mentioned to be broken down into further sub-phases. There is a 9-stage heat treatment for the material 2.4669. Such complex heat treatments are also called annealing specifications or annealing programs for the purpose of linguistic differentiation. Whereby annealing program is used homonymously and also

  • the chronological sequence of annealing of different workpieces or
  • the compilation of the possible annealing for a product (range)

can mean.


Depending on the desired material property, a distinction is made between:

For the process of glowing, see also under embers (light emission) and embers (combustion).

Category: Change fabric properties