Surface Finishing
Heat Treatment Service
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Heat Treatment
Heat treating of the surface is a range of processes used mainly with steel parts that use heating in various ways for different periods to achieve required surface properties. One of the commonly used heat treatment processes for steel parts is hardening. As the name suggests, hardening results in a hardened surface on the steel part.
In surface hardening, the surface of the steel part is first heated to the transformation temperature of 800℃ or higher and a certain amount of carbon is dissolved into the surface. The part is then cooled down using oil or water while carbon is supersaturated in the part surface. This produces a hardened surface. The surface colour of hardened parts changes to a dull grey.
Prolean offers surface heat treatment for steel parts.
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Specify final material state and post-treatment inspection condition
Heat-treatment requirements must identify the material grade, target condition, controlled property, applicable test method and which features are inspected after treatment. Plan for potential change in size, form or surface condition when setting machining allowance.
Engineering data to lock before release
| Material basis | Grade, incoming condition and traceability |
|---|---|
| Treatment target | Required condition, hardness/strength or microstructure |
| Geometry control | Allowance and post-treatment critical dimensions |
| Evidence | Test method, report format and sampling requirement |
Hardness or strength targets should identify the measurement method and location, not only a number without test context.
