HEAT TREATMENT COVENTRY LTD
Stress Relief Heat Treatment
Stress relieving uses controlled heating and cooling to reduce residual stresses introduced by manufacturing.
01
What the Process Is
Residual stress can be introduced by welding, casting, forging, forming, straightening or heavy machining. Stress relief heat treatment is intended to reduce these stresses without applying a full hardening cycle.
02
How the Treatment Works
Parts are heated to a material-appropriate temperature below a major transformation range, held as required and cooled in a controlled manner. The correct cycle depends on alloy, prior condition and governing specification.
03
Why Engineers Specify It
The treatment may improve dimensional stability during subsequent machining or service and reduce the risk associated with locked-in manufacturing stresses.
04
Typical Components and Applications
- Welded fabrications
- Rough-machined blanks before finishing
- Castings and forgings
- Complex components where dimensional stability is important
05
Materials, Specification and Process Control
Provide the alloy, prior processing route, component section, required standard and the stage at which stress relief is intended. Some heat-treated materials can lose properties if the wrong temperature is used.
Important: suitability depends on the exact material grade, component condition, geometry and required specification. Please provide these details for technical review before treatment.
Related Heat-Treatment Services
Not every component needs the same thermal cycle. Explore our full heat-treatment services or discuss the drawing and performance requirement with our team.
Frequently Asked Questions
It is often placed after stress-generating operations and before final precision machining, but the manufacturing plan should determine the correct stage.
No practical treatment should be assumed to remove every residual stress. The objective and acceptance requirement should be defined.
Possibly, but temperature must be compatible with the prior heat treatment and required properties. Full material history is important.
Request a Stress Relieving Quotation
Tell us the process, material or steel grade, quantity, component dimensions and required specification. We will review the information and advise on the next step.