Galvanized steel refers to that ordinary carbon construction steel can effectively prevent steel from corrosion and rusting and thus prolong the service life of steel after being galvanized, including galvanization and hot dip galvanization. Generally, it is commonly used for building exterior walls, such as glass curtain walls, marble curtain walls, aluminum curtain walls as columns and stress materials, or for outdoor telecommunications towers, highways and other outdoor buildings. The steel is called galvanized steel, in which galvanization is divided into electrogalvanizing and hot-dip galvanizing.
Galvanized steel mainly includes the following main components: first, iron, which is the main component of steel. The difference between iron and steel is in carbon content. Iron has lower carbon content, so it has better toughness and hardness. The second is sulfur, but it is a harmful impurity. When steel with high sulfur content is processed at high temperature, it is easy to embrittlement; In addition, there is phosphorus element. Phosphorus will reduce the plasticity and toughness of steel, which will be more obvious at lower temperatures. Therefore, in high-quality galvanized steel materials, the content of sulfur and phosphorus should be strictly controlled to ensure the quality of galvanized steel.
