High-aluminium steel with high strength, high toughness, low density, low cost and other advantages, widely used in automotive, energy and other key industries. However, with the substantial increase in the aluminium content of high-alumina steel, its production difficulty increases steeply, especially in the continuous casting of high-alumina steel, prone to adhesion and leakage of steel, billet scarring, water mouth tuberculosis, plug stick adhesion, central segregation defects, and other thorny issues.
How to break through the bottleneck of high alumina steel continuous casting technology, high alumina steel to achieve multi-furnace stable continuous casting, has become a lot of advanced iron and steel enterprises focus on the direction. Pangang's high-alumina steel continuous casting technology has made an important breakthrough, the typical high-alumina steel 34MnB5V can now be poured continuously for 6 furnaces, reaching the domestic advanced level.
The world's largest diameter ductile iron pipe in Hubei Huangshi has come off the production line successfully, the iron pipe diameter is 3 m, and its weight is 15 tons. Large diameter ductile iron pipe not only has a stronger resistance to foundation settlement, but also can significantly reduce the consumption of various materials.
Comparing DN1000 and DN3000 pipe: DN3000 pipe diameter increased by 2 times, and the amount of water increased by 20 times; the product's material consumption is saved 19%. Adding variety of elements in ductile iron pipe formula is to ensure the finished product higher strength, greater toughness and longer work life.
