POSCO steel making company, headquartered in Pohang, South Korea, is teaming up with Hyundai MIPO Dockyard to build the world’s largest liquefied natural gas (LNG) fuelled bulk carrier.
The 50,000 DWT ship will incorporate a large range of energy efficient technologies, including a dual-fuel capable engine that is able to operate on both bunker grade C fuel oil and LNG.
The ship will use POSCO’s high manganese steel for its fuel tank that contains approximately 20% manganese, which means it can store LNG down to temperatures of -162℃. Compared with nickel and aluminium traditionally used for fuel tanks, the steel has a superior yield strength, extremely low temperature toughness and competitive price.
Furthermore, as the ship will be designed to be compliant with the International Code of Safety for Ships using Gases or Other Low-flashpoint Fuels (IGF Code) when sailing across the ocean, the high manganese steel used has a higher chance for being selected as a material for extremely low temperatures required by the International Maritime Organization (IMO) once the ship enters into service.
The ship will be used to carry limestone from Gangwon-do, a northeastern province in South Korea, to POSCO’s Gwangyang works located at South Jeolla Province in southwest South Korea from 2018.
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