Does stainless steel blacken? Why rust and what are the advantages and disadvantages of using stainless steel and how to distinguish between stainless steel and carbon steel. Rust is a common phenomenon in steel and metal. This is the process of metal corrosion under the influence of the surrounding environment.
The cause of stainless steel is black and rusty
The underlying cause is obvious chemical corrosion and electrochemical corrosion
Chemical corrosion is the oxidation-reduction process of metals directly reacting with environmental oxygen, usually air and water
Electrochemical corrosion is the destruction of metal by the contact of an alloy with an electrolyte solution that generates an electric current
To prevent rusting of iron and steel, the most basic thing is to prevent the steel from being exposed to the environment to avoid being oxidized and corroded. Can be painted on iron surface, metal with protective grease...
Stainless steel is a carbon alloy with added chromium. When chromium is added it will oxidize to form chromium oxide. The invisible thin passive film wraps around the steel, preventing the steel from being exposed to the environment. If the metal is scratched with a lot of chromium oxide, it will quickly form and restore a thin, anti-corrosion film. Environment where oxygen content is low but chloride is high. For example, sea salt, sugar or many different chemicals in the environment, this passive film will lack oxygen to regenerate chromium oxide, and at this time the steel will rust.
Although it can not be completely rustproof, but stainless steel will be better than ordinary carbon steel.
A material that is considered superior to metal materials.
High strength: this material is very strong and retains its original shape for a long time. Resistance to impact and structural damage is high, and the hardness of the steel is preserved over a wide temperature range. Save on repair costs.
Corrosion resistance: Superior rust resistance than other metals suitable for a wide range of environments. There are still certain chemical environments that can cause problems with stainless steel equipment. When choosing to buy this material, we need to talk to the supplier about the purpose and use environment to receive the best advice on choosing stainless steel.
Aesthetics: Stainless steel has a smooth surface that requires only proper maintenance of the steel to have very few dents, cracks and grooves forming on stainless steel. This helps to keep the steel clean and beautiful with very little dents, cracks and grooves forming on the stainless steel. This helps to keep steel clean, much nicer than many other materials and materials.
Recyclability up to 90%: Not durable in terms of materials and aesthetics, stainless steel is also highly recyclable to reduce waste into the environment.
Easy to clean: The surface of stainless steel is always glossy, so cleaning is very simple.
