The famous law in heat Treatment : 1 hour per Inch
The famous law in heat Treatment : 1 hour per Inch
(OP)
In heat tretament there is a famous law : the time of treatment is 1 hour per inch
1- What is the origin of this law ?
2- Is it for Thermal diffusion or for chemical diffusion ?
Stanislastment
1- What is the origin of this law ?
2- Is it for Thermal diffusion or for chemical diffusion ?
Stanislastment





RE: The famous law in heat Treatment : 1 hour per Inch
RE: The famous law in heat Treatment : 1 hour per Inch
Ok but :
What about the macroségrégation or the microségrégation ?
What about also the homogeineization of the grain size ?
RE: The famous law in heat Treatment : 1 hour per Inch
RE: The famous law in heat Treatment : 1 hour per Inch
The "rule of thumb" mentioned by swall above was developed based on practical experience in heat treatment shops. It was discovered that holding an item using time at temperature assures adequate soak time to avoid thermal gradients, and to assure complete austenite transformation.
Keep in mind this "rule of thumb" was also developed for post weld heat treatment, and that beyond a certain component thickness (2"), the temperature soak time can be revised to 15 minute increments at temperature.
RE: The famous law in heat Treatment : 1 hour per Inch
Rao Yallapragada
RE: The famous law in heat Treatment : 1 hour per Inch