LNGTainer launches new tank

Finnish LNG tank manufacturer LNGTainer has launched a new tank which brings together two innovations; LNGTainer’s tank container and Outokumpu’s austenitic stainless steel grade, Supra 316plus.

LNGTainer CEO, Tom Sommardal said: “The most revolutionary aspect of LNGTainer’s new tank container is that the structure includes a light, flexible inside tank and outside pressure vessel. For the light inside tank, we chose Outokumpu’s Supra 316plus steel grade. With the new patented structure, we could decrease the weight of the tank by 30% and increase its capacity by 15%. Because the weight of the inside tank is significantly less than in competing tanks, the time for cooling off the inside tank is considerably shorter. Light inside tank cools off faster for transport.”

LNGTainer first considered using aluminium in the inside tank, while Outokumpu offered Supra 316plus because of its properties. Supra 316plus has relatively better low temperature properties compared to other similar materials. In fact, its strength and ductility only improve as the temperature drops down to the lowest measured cryogenic temperature of -196°Celsius. LNG is transported in a temperature of -164°Celsius and then warmed back to gas when delivered.

Outokumpu Project Manager, Juha Kela said: “By having excellent low temperature properties, Supra 316plus enables thinner gauges, which translates as savings in weight, fuel, energy costs, as well as a lower carbon footprint. LNGTainer’s new tank container is a real breakthrough, and it demonstrates the best use of stainless steel properties in extreme conditions.”

For more information visit www.outokumpu.com

9th Oct 2017