Report from our correspondent on September 18, river steel WuGang news said, as the topic main implementation unit, river steel WuGang participation "much starker choices-and graver consequences-in" national key subject development plan - "cryogenic and severe corrosion conditions and low cost container steel" 7 ni steel to achieve industrialization trial production, among them 6 mm, 12 mm, 30 mm, 50 mm thick 7 ni steel - 196 degrees Celsius low-temperature impact work in more than 180 kilojoules, various performance indicators meet the requirements of relevant standards.
This marks the emergence of Hegang Wugang as one of the few international producers capable of producing 7-nickel steel.

For a long time, LNG (liquefied natural gas) storage tank materials are mainly 9Ni steel, while nickel is relatively expensive. Moreover, China is a "nickel poor" country, so it is urgent to develop low-nickel LNG storage tank materials.
7Ni steel is used as the steel for nickel-saving LNG storage tank. By reducing nickel content, the material cost of the downstream industry can be saved up to more than 2000 yuan/ton.
At present, Japan has taken the lead in developing 7 nickel steel as steel for low nickel LNG storage tanks and successfully applied it to build large LNG storage tanks.
China's low nickel LNG storage tank steel is still in its infancy.
To this end, Hegang Wugang and Northeastern University and other domestic research institutions jointly carried out the research and development of "low-cost container steel under ultra-low temperature and harsh corrosion conditions", "organization and control principle and key manufacturing technology of low-nickel LNG steel".

In order to ensure the quality of research and development, the project team has set up a special technical research team, carried out a lot of laboratory research, and established the design scheme and production process parameters of the new steel alloy;
By using the advanced smelting and rolling control and cooling technology of Hegang Wugang, the complete metallurgy theory of low-nickel container steel has been established, and a series of key technical problems, such as the control of the microstructure and properties of low-nickel steel plate, have been overcome.
Next step, The River steel Wugang will actively promote the third party assessment and through the industry review, for the variety reserve to lay a solid technical foundation.
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