The Sydney Harbour Bridge is a steel structure, with the steel arch carrying the live and dead loads out to the underground concrete abutments. The steel used by Dorman, Long & Co. Ltd. was not mild steel or plain-carbon steel. They chose to use a precursor to modern day structural steels: silicon steel. read more
mide steel plate,weather resistant steel plate,corrision steel plate these all can be used in harbour bridge. Atmospheric corrosion resistant steel is made from common steel by adding a small amount of corrosion resistant elements such as copper and nickel. read more
The Sydney Harbour Bridge is a steel through arch bridge across Sydney Harbour that carries rail, vehicular, bicycle, and pedestrian traffic between the Sydney central business district (CBD) and the North Shore. read more
S355 steel is predominantly used in highway bridge applications, as it is readily available, and generally gives the optimum balance between stiffness and strength. S275 steel is often used on railway bridges, where stiffness rather than strength governs the design, or where fatigue is the critical design case. read more