What is Q550NHA weathering steel?
Today, Zherui company will answer this question for everyone, let's take a look.
Q550NHA weathering steel structure has many unique advantages, such as high strength, high toughness, earthquake resistance, light weight, low price, small space, no consumption of civil engineering, etc. Light steel structure is used for residential buildings, its construction period is short, capital Fast turnover, etc., is an economic steel with the concept of “green” and sustainable development.
Fire-resistant weathering steels have been widely used abroad, such as corten steel. For example, the steel structure building of the second office building of Nippon Steel in Japan, according to the traditional design of the column beam fire layer thickness of 50mm, after the use of fire resistant weathering steel, the fire layer is reduced to 15mm, less than 1/3 of the original, the department exposed the outdoor column beam The protective layer is removed, and some large car parking garages and sports fields do not use protective layers at all.
China's residential construction industry is looking forward to the domestic Q550NHA weathering steel fire resistant weathering steel to be put on the market as soon as possible. Nowadays, Q550NHA weathering steel refractory weathering steel has the proper technology to make the steel contain specific components, surface structure and microstructure, so that the steel itself is naturally required for weather resistance and fire resistance. Its weather resistance is comparable to that of corten steel in the United States, which is 2-8 times that of ordinary steel, and can improve the coating performance several times to several tens of times.