Follow us:  facebook  google   



Annealing is the process of restoring completely or partially stable conditions for the steel grade in changing its microstructure and its mechanical properties. Annealing can be suitable to cancel a work hardening, a too high hardness and stress concentrations.
After annealing, the steel will be more ductile, less hard and in stable conditions (thermodynamic equilibrium). Then the steel becomes well-suited for forming or shaping applications or ready to receive another hardening process.



Stress Relieving

Stress relieving is a process that significantly reduces internal stress in a material, like steel or metal, without altering its other properties. This process is typically carried out by heating the material to a suitable temperature. Stress relieving is recommended for steel that is subject to fragility and cracks generation when it undergoes hardening or before it is used in downstream processes. For example, it is recommended to make a stress relieving heat treatment after hardening or forming.

Normalizing is done with the purpose of transforming an inhomogeneous microstructure with some unwanted components into a consistent and regular fine-grained microstructure. For example, we recommend normalizing after casting or hot forming due to a structure which is not homogeneous enough.
Sub-Zero Treatment or Cryogenic

"Sub-Zero" is a process required to initiate or finalize a metallurgical transformation below the ambient temperature. For example, “Sub-Zero” is required to finalize the transformation of austenite into martensite for some steels grades. If the “Sub-Zero” is not performed in some cases, the steel may contain some retained austenite which is not suitable to reach the desired hardness and subsequent mechanical properties. This process may also prevent dimensional changes when the steel is put into use. Sub-Zero treatment is typically carried out at extremely cold temperatures, around -80 to -150 degrees Celsius, using liquid nitrogen.

For further inquiries, you can contact us at:
Contact Tel : 038-080411,086-375-7403
Email :
This email address is being protected from spambots. You need JavaScript enabled to view it.
LineID : @heattreatment 

Product Menu

Our Company

Tel  : 66(0) 2295-1000-8,66(0) 2295-1901-6
Fax  : 66(0) 2295 1009 , 66(0) 2683 0943 , 66(0) 2683 0944
Addr. : 42, 48 Rama 3 Road, Soi 53, Yannawa, Bangkok 10120
Tel. : 66(0) 38-080-400 , 66(0) 38-080-411
Fax : 66(0) 38-080-409 , 66(0) 38-080-419 , 66(0) 38-080-429

: 155 Moo 14 Sukhumvit Road (Old Route) Bang Pakong Tambon    Bang Pakong District Chachoengsao Province

Visit Us