The material for the LNG container for the large capacity of LNG storage is 9% Ni steel in consideration of the design of -161 ~ -168 oC of the design temperature of LNG as shown in the following sheet “TEMPERATURE RANGE FOR MATERIAL OF CRYOGENIC STORAGE TANKS”. In principle, stainless steel type 304 is used for the tank having small capacity and in case that the use of 9% Ni steel is not economical. The stainless steel type 304 is also used for the membrane of in-ground and above ground tank.
LNG design tank type
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