In 2018, the ultra-high-strength marine steel developed by SGJT Steel Technology Corporation, a leading rare earth steel manufacturer in China, was successfully commercialized.
As of March 2022, the product has been successfully applied to multiple offshore wind power jack-up installation platforms in China.
Steel for marine engineering is a key structural material for marine engineering equipment. It needs to withstand harsh service environments such as offshore wind and waves, undercurrent, atmospheric erosion, and seawater corrosion. The material is required to have high structural strength, good low-temperature toughness, atmospheric corrosion resistance and resistance. Seawater corrosion performance and good weldability.
The company's production of ultra-high-strength marine steel with a yield strength of 550MPa and above is the first production of the factory's wide and thick plate line. The product requires high strength, low temperature impact resistance of minus 40 °C, and extremely demanding performance requirements, and has passed the China Classification Society. Ultra-high strength marine steel factory audit.