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Stainless steel screws have enhanced corrosion resistance after solution treatment

2024 - 09 - 02

Stainless steel screws, especially those made of high-quality stainless steel such as 304 or 316, have significantly enhanced corrosion resistance after solution treatment. This improvement process not only improves the overall performance of the screws, but also broadens their application areas, especially in environments with high corrosion resistance requirements.
Effect of solution treatment on corrosion resistance
Eliminate harmful phases: In stainless steel, precipitated phases such as carbides often become the starting point of corrosion. Solution treatment reduces the number of corrosion sources by dissolving these phases into the matrix, thereby reducing the possibility of corrosion.
Improve matrix purity: After solution treatment, the alloy elements in the matrix of stainless steel screws are more evenly distributed, reducing the formation of local chromium-depleted areas. Chromium is a key element in the corrosion resistance of stainless steel, and its uniform distribution helps to improve the corrosion resistance of the entire material.
Enhance grain boundary stability: Solution treatment can also improve the grain boundary structure of stainless steel, making it more stable. Stable grain boundaries are not easy to become a breakthrough for corrosion, thereby improving the material's resistance to intergranular corrosion.
Optimize the organizational structure: The organizational structure of stainless steel screws after solution treatment is more uniform and fine, which helps to reduce the possibility of stress concentration and crack initiation, and further improves the corrosion resistance and overall strength of the material.
Specific performance and application
Stainless steel screws after solution treatment perform well in the fields of medical, chemical, marine engineering, etc. In medical equipment, its good corrosion resistance and biocompatibility ensure patient safety; in chemical equipment, it can resist the erosion of various corrosive media and ensure the long-term stable operation of the equipment; in marine engineering, its strong seawater corrosion resistance provides reliable protection for offshore facilities.