Basic Knowledge of Steel Materials: Stainless Steel Composition
Stainless steel is an alloy primarily made of iron, mixed with chromium, nickel, and other elements.
Due to the presence of chromium and other elements, a strong passive film forms on the surface, making it a corrosion-resistant metal. Stainless steel is not a rust-proof steel; it is a "rust-resistant" steel. As chromium is added to iron, it gradually becomes more resistant to rust. When more than 10.5% chromium is added, it is referred to as stainless steel. In addition to corrosion resistance, stainless steel possesses excellent properties such as heat resistance, workability, and strength. It also excels in aesthetics and is easy to maintain, which are significant features. Furthermore, stainless steel has a long lifespan, resulting in less frequent repairs and replacements, providing advantages in terms of lifecycle costs.
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