How to cut > How to minimize distortions from thermal cutting

How to minimize distortions from thermal cutting

There are several ways to minimize distortions from cutting operations.
  • If the material doesn’t require preheating, cutting submerged in water will minimize the distortion.
  • For materials requiring preheating or postheating, using submerged cutting followed by postheating is recommended over preheating to minimize distortion.
  • Switching to a cutting method that generates less heat can reduce distortion. Oxy-fuel cutting is the most heat-intensive, followed by plasma cutting, and finally laser cutting, which introduces the least amount of heat.
  • Make nesting so that parts are cut out at different locations of the plate. Strategically nesting parts on the plate ensures uniform heat distribution and reduces distortion.
  • If cutting long slender parts cut both sides of the part simultaneously with to torches. This if of course only possible in certain cases.
  • Simultaneously cutting both sides of long, slender parts with two torches can mitigate distortion, although feasible only in specific cases.
  • Non-thermal processes like abrasive water jet or sawing can be alternatives to thermal cutting, eliminating heat-induced distortions altogether.

Contact Technical support


The information in this report is only applicable to SSAB’s products and should not be applied to any other products than original SSAB products. 


This report provides general results and recommendations for SSAB steel products. This report is subject to SSAB’s Terms of Use. It shall be the user's responsibility to verify that the information contained herein is correct and is suitable to be used for the particular purpose and application of the user. The report is intended to be used by professional users only who possess adequate expertise, qualification and knowledge for the safe and correct use of the results and recommendations in this report. This report is provided “as is”. The use of the report is at user’s own discretion and risk and that users will be solely responsible for any use of this report. SSAB disclaims any liability for the content or potential errors of this report, including but not limited to warranties and condition of merchantability or fitness for a particular purpose or suitability for individual applications. SSAB shall not be liable for any kind of direct or indirect damages and/or costs related to or arising therefrom, whether special, incidental, consequential or directly or indirectly related to the use of, or the inability to use, the report or the content, information or results included therein.