The world's No. 1 cable-stayed bridge between Shanghai and Nantong Yangtze River Bridge, produced by ZXTG Special Steel Group, was successfully installed and tested. The world's first successful application.
At present, all extra-long-span bridges over a kilometer are cable stayed or suspension bridges. Large-scale bridge construction requires large investment and complicated service environment. It has strict requirements on the strength index, torsion index, fatigue performance, and corrosion resistance of bridge cable steel wires.
In order to meet the requirements of bridge construction and ensure absolute safety performance, ZXTG special steel has successfully developed ultra-high-strength galvanized steel wire for bridge cables using its own equipment and material technology advantages. ZXTG uses ultra-high clean smelting technology, large-section controlled rolling technology, and green environmental-friendly online EDC water bath toughening heat treatment technology, special steel high-clean smelting and homogenizing solidification technology, dual-line special steel production technology, and QWTP Wire offline salt bath toughening and other technologies have developed 1860Mpa class, 1960Mpa class, 2000Mpa class ultra-high strength bridge cable galvanized steel, among which 1860Mpa class and 1960Mpa class bridge cable steel have been successfully used in Humen II Bridge, Yangsigang Bridge, Wufengshan Yangtze River Bridge, Shanghehang Bridge and other landmark super-large bridges.
The 2000MPa-grade bridge cable steel supplied by ZXTG special steel was used in the Shanghai-Nantong Yangtze River Bridge, not only realizing the world's first application of 2000MPa-grade bridge cable steel in extra large bridges, but also the first domestic adoption of Φ7.0mm The breakthrough of -2000MPa-class stay cables represents a new leap forward in bridge construction in China, and the field of bridge construction materials has entered a new era of vigorous development.