Effect of heat treatment on stainless steel pipe fittings
Stainless steel pipe fittings and flanges production enterprises should take into account the production cost of pipe fittings, but also the factors of preventing corrosion and improving product quality. Therefore, it is necessary to adopt solid solution process in the production process of stainless steel flange to enhance the safety of pipe fittings. Heat treatment process plays a vital role in the quality and safety of pipe fittings. It is known that in order to save cost in pipe fittings production, a few enterprises did not take solid solution treatment, only used polishing and sandblasting methods to deal with the defects and shortcomings of pipe fittings, which will bring permanent hidden dangers to the use of pipe fittings.
Effect of heat treatment on stainless steel pipe fittings:
The molecule structure, magnetic properties and physical properties of stainless steel pipe fittings have changed after forming and welding. The corrosion resistance of the stainless steel can be restored by the solution process under atmosphere protection. At the same time, the required hardness of the stainless steel can be obtained to ensure the best service performance of the stainless steel. The stainless steel pipe fittings after solution treatment have good improvement effect.
- Eliminate the modification of stainless steel pipe fittings in the process of processing, reduce the hardness of stainless steel to less than 220HV, improve the plasticity and toughness of stainless steel, and make the pipes more convenient and safe in installation.
- Restore the stress and intergranular change in the production process of stainless steel pipe fittings, reduce the intergranular corrosion and stress corrosion of stainless steel, and enhance the anti-corrosion ability.
- Remove the magnetism of stainless steel and stabilize the structure.
- Natural brightness of reduced stainless steel (different from polished brightness).