After hot-dip galvanizing, a zinc layer is formed on the surface of the steel. This zinc layer can effectively isolate the steel from the external environment, prevent oxygen, moisture, etc. from corroding the steel, and greatly extend the service life of the angle steel. It is especially suitable for humid and corrosive environments, such as seaside buildings, chemical plants, etc.
The galvanizing treatment is an important feature of these angle steels. The galvanizing layer can provide good anti-corrosion protection for the angle steels and extend the service life of the angle steels in various environments, especially in humid and corrosive environments. At the same time, the galvanizing layer makes the surface of the angle steels smoother and more beautiful.
American standard H-beam A36 is a carbon structural steel with excellent performance. It is made by adding a certain amount of alloy elements such as silicon, manganese, phosphorus, etc. to ordinary low-carbon steel. Its main component is iron, the carbon content does not exceed 0.2365%, the silicon content is between 0.15% - 0.40%, the manganese content is between 0.30% - 0.60%, and the phosphorus content is between 0.035% - 0.045%. The reasonable ratio of these elements makes A36 have excellent performance in strength, hardness and toughness. It also has excellent plasticity and weldability.
Q235B and Q355B galvanized angle steel are two common steel materials for construction and structure. They have some differences in chemical composition, mechanical properties, and uses.
SS400 is a steel grade specified in the Japanese JIS standard, where SS stands for structural steel and 400 means its minimum tensile strength is 400MPa. Its main chemical components include carbon (C), silicon (Si), manganese (Mn), sulfur (S) and phosphorus (P). The carbon content is about 0.05-0.20%, the manganese content is about 1.40-1.75%, and it also contains a small amount of impurity elements such as sulfur and phosphorus. For SS400 angle steel, its chemical composition should comply with the provisions of JIS G3112, with a carbon content between 0.18%-0.28%, a silicon content between 0.12%-0.30%, a manganese content between 0.70%-1.00%, and a certain amount of phosphorus (P) and sulfur (S) elements to increase hardness and strength.
After galvanizing, a zinc layer is formed on the surface of the angle steel, which can play a protective role, greatly improve the corrosion resistance of the angle steel, extend its service life, reduce rust and damage in humid and corrosive environments, and make it more suitable for use in harsh conditions such as outdoor and humid environments.
