Can Aluminium be used for LNG applications? The answer is yes. MOSS-Rosenburg type tanks (Independent Type B tanks - Spherical) is fabricated of aluminium alloy 5083 annealed. LNG Vessel - Moss-Rosenburg containment (source:http://www2.gov.bc.ca/assets/gov/taxes/lng.jpg) The use of aluminium for LNG applications is permitted by the IGC Code (Chapter 6). It is also permitted by IGF Code for use in LNG fuel pipe lines as well as containment systems. Aluminium alloy 5083 forms part of the approved 5000 series for marine use. It is supplied annealed and has a UTS 275 to 350 N/mm2. It has a lower melting point of app.660 C when compared with stainless steel. However, this is not a consideration for use in LNG applications. It has a lower elongation rate and also has toughness, which keeps the material properties retained to a temperature of up to -196C. Hence it does not require an impact test (IGC/IGF Codes) However, it compromises on the tensile stress it can take when