stress relieving heat treatment
The most important step after welding large, heavy structures. We relieve residual stresses in the material to reliably prevent warping and cracking during subsequent machining or under operational loads.
Homogeneous structure, uncompromising corrosion protection
In the construction of large-scale industrial equipment, low residual stress is of the utmost importance for safety. We anneal your welded assemblies—weighing several metric tons—with temperature control accurate to the millimeter and extremely slow cooling rates. This ensures absolute dimensional accuracy on the boring machine and later in the plant.
stress relieving heat treatment
Annealing at a sufficiently high temperature—determined by the specific material—followed by slow cooling to relieve internal stresses as much as possible without significantly altering other properties of the microstructure.
Heat Treatment & Temperatures
- Operating temperatures up to 1050 °C (up to 1070 °C for short periods)
- Unrestricted operation throughout the entire lower temperature range
quality assurance (QA)
quality assurance (QA) At our company, a team of in-house certified inspectors handles this process, utilizing a wide range of non-destructive and destructive testing methods, precise 3D measurement, and comprehensive batch traceability. This ensures that every component meets our quality standards and complies with applicable regulations.
For a comprehensive and audit-ready Documentation Handled by our own team. All materials, components, and filler metals remain traceable; all documentation is stored in an audit-proof manner and prepared in accordance with standards and individual customer requirements.
Any questions? We’re here to help you personally.
At WOLF Vessel and Apparatus Construction, you and your projects are our top priority. You can always count on our consistently high product quality and our comprehensive service.
Volker Ermert
Werksleiter/Leiter Wärmebehandlung
Details on stress relieving heat treatment
What furnace sizes are available from WOLF? Why are heating and cooling rates so critical here? Learn everything you need to know about the stabilization of large welded assemblies.
What information do you need to prepare a specific quote? + − Component dimensions (max. length, width, height), component weight, desired heat treatment type (stress relieving heat treatment, normalizing, or other processes), desired surface treatment or cooling strategy, required process documentation, and, if applicable, standards (e.g., DIN/EN standards).
Component dimensions (max. length, width, height), component weight, desired heat treatment type (stress relieving heat treatment, normalizing, or other processes), desired surface treatment or cooling strategy, required process documentation, and, if applicable, standards (e.g., DIN/EN standards).
What specific characteristics or factors of your facility affect the quality of the heat treatment? + − Very high operating temperatures and controlled cooling rates support the required mechanical properties and stress relief. Large cooling tanks (polymer quenching tanks) and a variety of cooling methods allow for customized process adjustments depending on the material and component.
Very high operating temperatures and controlled cooling rates support the required mechanical properties and stress relief. Large cooling tanks (polymer quenching tanks) and a variety of cooling methods allow for customized process adjustments depending on the material and component.
What advantages does your system offer specifically for heavy-duty welded structures? + − Performing stress relieving heat treatment or normalizing, as well as other specialized heat treatment processes. The large dimensions of the working area and high weight capacity enable the treatment of large and heavy components.
Performing stress relieving heat treatment or normalizing, as well as other specialized heat treatment processes. The large dimensions of the working area and high weight capacity enable the treatment of large and heavy components.
What types of bridge or process solutions do you offer in addition to heat treatment? + − Professional stress relieving heat treatment or normalizing, as well as other specialized heat treatment processes for optimizing heavy-duty welded structures. Goal: To relieve stresses and ensure the longevity of the components.
Professional stress relieving heat treatment or normalizing, as well as other specialized heat treatment processes for optimizing heavy-duty welded structures. Goal: To relieve stresses and ensure the longevity of the components.