Stainless steel is more and more popular with people because of its corrosion resistance and the advantages of not being easily damaged. So what is the difference between stainless steel photovoltaic bolts and iron bolts? Today, the editor will take you to find out:
Both steel and iron making processes are carried out by oxidation-reduction reactions, but there is a big difference in the reaction objects between the two. Iron making is to reduce iron, while steel making is to reduce excess carbon in pig iron and other Impurities are removed. Therefore, iron and steel are distinguished by the amount of carbon content. Iron-carbon alloys with a carbon content of less than 2% are steel, and those with a carbon content of more than 2% are called iron. So from a metallurgical point of view, there is no such thing as stainless iron.
Steel is widely used because of its toughness, elasticity and rigidity. The most common reason for consumers to buy is that stainless steel will not rust, and whether the standard will be attracted by magnets. As far as rust is concerned, rust means that it is not resistant to corrosion. The main element that determines the corrosion resistance of stainless steel is chromium. Steel with chromium content above 10.5% will not rust. At this time, the oxidation of chromium and the corrosive medium will form an oxide film on its surface, which can prevent basic further corrosion.
