Stainless steel stretching parts have magnetism, and the following methods can be tried to solve it:
Low temperature annealing method: After low-temperature annealing, residual stress in stainless steel can be eliminated, achieving the goal of reducing magnetism. Normally, the low-temperature annealing temperature is controlled between 300-500 ℃, and the annealing time depends on the thickness of the stainless steel material, usually 2-4 hours.
Residual stress relief method: Stainless steel materials will generate residual stress during processing, leading to magnetization. The method of passivation can be used to remove stress, causing stainless steel materials to deform under the action of force, increasing the elastic modulus of the material itself, and achieving the goal of stress removal. This method is suitable for small stainless steel parts.
Coordinated composition method: Add appropriate alloying elements to stainless steel materials to ensure their composition is coordinated. For example, adding elements such as molybdenum and nickel, controlling their content within a certain range, can eliminate magnetism in stainless steel. However, due to its difficulty in blending, it is not a commonly used method to eliminate magnetism in the production process.
Please note that the magnetic issues in stainless steel materials can be addressed using the above methods according to different production needs. Meanwhile, different methods may be required to address magnetic issues for different stainless steel materials and processing methods. If the problem is difficult to solve, it is recommended to consult experts in the relevant field or seek professional assistance.
