Trailer Design Guideline > Manufacturing
Hot straightening
Hot straightening is a very common method to restore longitudinal beams for trailer chassis that have been distorted due to welding.
Hot straightening is not recommended for Strenx® and Strenx® CR. This is because the steel may lose its guaranteed properties in the heated area.
The recommended maximum temperature these steels can be subjected to without loosing their guaranteed mechanical properties is:
- Strenx® 700MC: 650 °C
- Strenx® 700 CR: 300 °C
- Strenx® 960 CR: 200 °C
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.
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