There are only a few countries in the world that can build LNG ships, and Invar, which is the core material of LNG ships, is also known as the "Pearl in the Pearl." Previously, only one company in the world could produce it.
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(1/n)
5 years ago, this global exclusive monopoly was broken by China BGTG Special Steel Group.
BGTG Special Steel has passed the French GTT company's certification of LNG marine Invar, became the world's second qualified supplier to supply thin film LNG marine Invar.
(2/n)
BGTG Special Steel has passed the French GTT company's certification of LNG marine Invar, became the world's second qualified supplier to supply thin film LNG marine Invar.
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French GTT company is an engineering company specializing in the research and development of low temperature storage and transportation technology of liquefied natural gas. It has more than 60 years of experience in manufacturing LNG storage tank membrane sealing systems.
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(3/n)
The French GTT company has a number of patented technologies for thin-film LNG tanker tankers.
All materials used in thin-film LNG ships need to be certified and licensed by the company.
(4/n)
All materials used in thin-film LNG ships need to be certified and licensed by the company.
(4/n)
In the large family of ships, there are 3 high-end ships that are recognized in the world as "the crown jewels" of the shipbuilding industry, one is aircraft carrier, one is a luxury cruise ship and the 3rd one is an LNG (liquefied natural gas) ship.
(5/n)
(5/n)
LNG ships are called "Big Macs", and they are called "super freezers at sea".
They are special ships that transport liquefied gas at -163℃.
Its high tech, high difficulty and high added value are internationally recognized.
At present, only China and S.Korea can build it.
(6/n)
They are special ships that transport liquefied gas at -163℃.
Its high tech, high difficulty and high added value are internationally recognized.
At present, only China and S.Korea can build it.
(6/n)
As a major power tool, the first LNG ship manufactured in China in April 2008 was successfully undocked, marking the rapid rise of Chinese shipyards in the field of LNG ship construction.
(7/n)
(7/n)
However, as the core material of LNG ships, Invar alloys always rely on imports, the main reason is that it is too difficult to develop.
In thin-film LNG ship maintenance systems, Invar alloys are widely used as thin-film materials, such as paper,with a thickness of 0.7 mm.
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In thin-film LNG ship maintenance systems, Invar alloys are widely used as thin-film materials, such as paper,with a thickness of 0.7 mm.
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They are ultra-low temperature resistant special steels with an operating temperature of -163 °C.
These data show that the technical difficulty of its development is far beyond imagination.
(9/n)
These data show that the technical difficulty of its development is far beyond imagination.
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In 2013, the project “Key Technology Application Research of LNG Ship Invar and Insulation Box Plywood” by the Ministry of Industry and Information Technology led by Hudong Zhonghua Shipbuilding (Group) Company was officially launched.
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Facing the challenges, BGTG Central Research Institute Special Steel Technology Center and Welding and Corrosion Research Institute, BGTG Special Steel Steelmaking Plant, BGTG Hot Rolling Plant... worked hard to overcome difficulties and break foreign tech barriers.
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(11/n)
... successfully completed the industrial trial production of this alloy, and achieved stable physical properties and good strength and toughness under ultra-low temperature conditions (-196 °C).
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So far,BGTG Special Steel has become the world's second qualified supplier of thin-film LNG marine invar alloys while realizing the localization of LNG marine invar alloys.👍
Although S.Korea has more LNG ship orders than China now, China can produce invar steel by itself.
(13/n)
Although S.Korea has more LNG ship orders than China now, China can produce invar steel by itself.
(13/n)
Remember "the crown jewels" of the shipbuilding industry I mentioned earlier?
China already has the building capacity of all three kinds of large ships!
But that's the other stories.😎
(End)
China already has the building capacity of all three kinds of large ships!
But that's the other stories.😎
(End)
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