Projects

Long-span bridges (such as suspension bridges and cable-stayed bridges) make extensive use of weathering steel and bridge-specific threaded steel. Weathering steel, by adding elements such as copper and chromium, forms a dense oxide layer, which can achieve "coating-free corrosion protection" in coastal and rainy areas, reducing later maintenance costs. Bridge threaded steel ensures the long-term stability of the reinforced concrete structure of bridge piers and bridge decks.

HRB400E seismic-resistant threaded steel is a core material of reinforced concrete in ordinary civil buildings. Its seismic performance can delay structural failure under earthquake loads, giving residents time to escape. Meanwhile, color-coated steel sheets are used for roofs and walls, combining decoration and corrosion resistance, and are commonly found in the enclosure systems of prefabricated houses.

The vehicle body structure uses advanced high-strength steel (AHSS) and hot-formed steel. The hot-formed steel can reach a strength of over 1500MPa after being quenched at 950℃. It is used in key parts such as door anti-collision beams and A-pillars to effectively absorb energy in a collision and improve the safety of the whole vehicle. At the same time, lightweight aluminum alloy steel (aluminum-steel composite material) is used in the body panels to help reduce the energy consumption of new energy vehicles.

High-speed rail and subway cars extensively use corrosion-resistant stainless steel (such as 301L and 304), which combines strength and fatigue resistance under high-speed aerodynamic loads and complex environments; the tracks themselves rely on U71Mn hot-rolled rail steel, whose high hardness and wear resistance can ensure a service life of more than 20 years.

The hull of ocean-going vessels is made of marine structural steel (such as AH32 and DH36), which has good low-temperature toughness (impact energy ≥27J at -20℃) and can withstand extreme environments such as polar regions and deep seas; the deck and cabins of the vessels are made of anti-slip patterned steel plates to ensure the safe operation of personnel and equipment.

The wind turbine tower is made of Q345E low-alloy structural steel, which maintains its toughness even in low-temperature environments of -40℃, supporting the stable operation of 100-meter-long wind turbine blades; the photovoltaic support uses hot-dip galvanized steel, which is protected against corrosion by a zinc layer (zinc layer thickness ≥85μm), and has a service life of over 25 years in outdoor environments.