GB/T 4172-2000 Weathering resistance steel for welding structure
Weathering resistance steel for welded structure is made to reduce the corrosion damage that can be caused by rain, snow and wind. Steel that has been specially alloyed and treated to make it long-term resistant to various types of weather can be used for the production of structures that are exposed to International elements, such as bridges, buildings, and machinery.
Weathering resistance steel for iolated welding structure is a kind of micro alloys with low carbon content. It is a low-alloy steel that is quenched and tempered and has special alloying elements added to increase its strength, hardenability and toughness. It has added small amounts of Mn, Cu, V, Ni, Cr and other components, which can improve the anti-corrosion performance of steel. The stronger the chromium content, the larger the corrosion resistance of the steel. Weathering resistant steel is usually divided into two categories according to the amount of chromium: high-alloy weathering steel and medium-alloy weathering steel. High-alloy weathering steel has a chromium content of more than 12%, medium-alloy weathering steel has a chromium content of between 6% and 9%.
Weathering resistance steel for welded structure is applicable to the design, manufacture and use of constructions or other applications which are exposed to strong corrosion and heat. It can resist cortezing corrosion, stress corrosion cracking and creep corrosion under hot and wet atmospheric conditions, as well as strong acid and alkali. Weathering steel for welded structures has good formability, weldability, oxidation resistance and corrosion resistance, making it an ideal choice for the construction of structures exposed to harsh weather climates.
Weathering steel for welded structures is widely used in steel shops, metallurgy, power plants, roads and bridges, etc. It can be used in many applications that need to protect themselves from weather, salt, acid and alkaline conditions, as well as resist mechanical damage, like bridges, ships, vehicles, boxes and containers. It is also suitable for offshore platforms, chemical industry and petrochemical plants, power stations, heating plants and other places that need strong corrosion-resistance and strength.
Weathering steel for welded structures meets the standards of GB/T 4172-2000. It is a general-purpose steel and it has been widely used in many fields. Weathering steel for welded structures is an ideal choice for the construction of structures exposed to harsh weather climates, providing a corrosion-resistant, strong and durable structure.
