Research on steel material corrosion and protection in deep ocean

No doubt that there are lots of treasures under the deep ocean, especially for various gas which are our needed nowadays. However, due to the typical character of deep ocean different from mainland, it is hard to get the treasure out. Thus, requirements for various pipes like seamless steel pipe and ERW steel pipe would be serious than ever in order to have a good features for working beneath the deep ocean.

Compared with the shallow sea environment, there are enormous pressures in the deep sea as well as serious problems of temperature, salinity, dissolved oxygen, pH, biological fouling, metal ion deposition and surface flow rate, which bring great difficulty for deep sea's research and development as many mature technologies in the sea and in the shallow sea can not be applied in the deep ocean. Deep sea materials, related to high strength steel, corrosion resistant alloys and non-metallic materials, are mainly used in deep-sea oil platforms, deep-sea oil production equipment, deep-sea pipeline, deep sea voyage and other deep sea engineering equipment.

High-performance steel, not only has the ability to withstand pressure, easy processing and low prices, and toughness, fatigue strength and energy absorption are good performance. High-performance steel pipe is mainly used for the manufacture of submarine pipelines and marine mooring chains, and is also used for the manufacture of pressure hulls. For example, the pressure hull of US submarine booms mainly uses Hy series quenched and tempered steel and alloy steel, and the Japanese submarine NS-30, NS-46, NS-63, NS-80, NS-90 and NS-110. As manufacturer of various steel pipes, Threewaysteel can deal with these troubles too.