Understanding more about the material characteristics will help you better use it.
Q235 is a carbon structural steel. Carbon steel is an alloy mainly composed of iron and carbon, but the carbon content is less than 2%. Generally, it also contains a small amount of silicon, manganese, sulfur, phosphorus, and other elements. Carbon steel with sulfur and phosphorus content greater than 0.35% but less than 0.5% by mass is called ordinary carbon steel. High-quality carbon steel and high-quality steel have lower sulfur content, and the latter has less than 0.3% sulfur and phosphorus content.
Q235 is easy to corrode and rust, but not in reinforced concrete. Q235 steel contains carbon, phosphorus, manganese, silicon, and other components and impurities, and forms ferrite, pearlite, austenite, and other different solid solution forms at the same time. When there are conductive substances such as water film on the steel surface, different components in the steel show different potentials, which is easy to lead to an electrochemical reaction.
