In his article, Engineering with Ni steel for LNG applications Part one of two: 9% Nickel steels, Pradip Goswami, P. Eng, IWE. Welding Consultant and Metallurgical Specialist, talks about the importance of having a viable way to transport and store mass amounts of liquefied natural gas (LNG), as it has become widely considered a form of clean energy. Although austenitic stainless steels 304 and 316 offer excellent ductility and notch-toughness at the LNG storage temperature of -161.5°C or below, 9% nickel (Ni) steel poses as the superior option.
Worldwide, 9% Ni steel is already most commonly used for the construction of above, and underground onshore LNG tanks, due to its weight savings, higher yield strength, and reasonably good notch-toughness at the LNG storage temperature, the article explains.
For the full article, please email Catarina Muia at c.muia@kci-world.com for the article PDF.
Image courtesy of ACCIONA Canada