China Making Manned Submersible to Dive to 10,000 Meters Depth

SCMP says in its report yesterday titled “Key work finished on Chinese submersible to carry humans to greater depths” that previously China built two manned submersibles that have dived to 4,500 meters and 7,000 meters below sea level and now it is building a new one to dive to 10,000 meters according to CCTV report yesterday.

The manned sphere is being made of titanium to withstand the great pressure at such a depth. Officials of the manufacturer Baoji Titanium Industry said that it was the first time titanium had been used to make a personnel sphere for a submersible.

Wang Dingchun, the company’s deputy general manager, told the broadcaster that the metal was more flexible and the company is able to make titanium alloy that is “almost corrosion-free”.

The report says, “The sphere is being made in two halves that will be welded together with just one seam to make it more solid. Traditionally there are more pieces involved.” Test dive of the submersible will be conducted at the world’s deepest Mariana Trench in three years.

Such deep-sea submersible will facilitate China’s sea bottom mining and its technology will be very useful for China in developing the most advanced submarine.

Comment by Chan Kai Yee on SCMP’s report, full text of which can be found at

One Comment on “China Making Manned Submersible to Dive to 10,000 Meters Depth”

  1. Steve says:

    Excellent news on China’s R & D.