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Ranking of stainless steel rust prevention ability |
Publisher: Jiangsu Yushan Metal Technology Co., Ltd | Hits: 704 | Published on: 2024-1-29 11:51:51 | Close |
| Firstly, it should be emphasized that stainless steel of any material is essentially an iron-based alloy steel, and containing iron elements increases the risk of rusting. Secondly, it should be understood that the essence of rust is corrosion, which is caused by the long-term exposure of the steel surface to air and oxidation reactions. The body of stainless steel contains metallic chromium. When the chromium content is above 12.5%, a delicate and stable passivation film will be formed on the surface of the steel, greatly enhancing its corrosion resistance. And what we are talking about here is relative, not absolute. The strength of its corrosion resistance depends on the chemical composition of the stainless steel itself and the type of medium used. For example, 304 stainless steel has excellent corrosion resistance in dry atmospheric environments. But if used in coastal areas, sea fog with a large amount of salt in the atmosphere will quickly rust. 316 stainless steel will perform well under these conditions, so not any type of stainless steel can rust in any environment. Ranking of Stainless Steel Rust Prevention Ability Fifth place, 430 stainless steel, commonly known as stainless steel, has the worst corrosion resistance and is very prone to rusting. Fourth place, 201 stainless steel. Most household stainless steel products are made of this type of stainless steel, which will rust over time. Third place, 304 stainless steel, the most economical and practical stainless steel, will not rust in general usage environments. The second place, 316 stainless steel, has strong rust resistance, but it is still unsatisfactory in high concentration acidic and alkaline environments. First place, 2205 duplex stainless steel, even in harsh environments, has strong rust resistance. |
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