What is the maximum temperature allowed for straightening during welding?

The maximum temperature allowed for straightening during welding is set to avoid compromising the integrity of the materials being worked on. At this temperature, the structural properties of the material are sufficiently preserved to prevent issues such as distortion, reduced strength, or altered mechanical properties that may arise from heat exposure.

650°C is considered a practical limit because, at this temperature, most materials—especially metals commonly used in container construction—can be manipulated without causing significant risk of damage. This threshold also aligns with industry standards that protect both the weld quality and the overall safety of the structural components involved in welding processes.

Other temperature options like 550°C, 600°C, or 700°C are either too low or too high, potentially leading to increased risks of negatively affecting the material's performance or causing deformation beyond acceptable limits.