SpaceX has a fleet of three prototype Starships (SN5, SN6, and SN7). The SN5 and SN6 bodies are fully stacked. The SN7 has survived a 7.6 bar pressure test.
Elon indicates that the 304L steel alloy performs better than the 301 steel. A failure of the 304L led a lead instead of burst.
In 6 months, SpaceX will start using their internally developed new 30X steel alloy.
SpaceX will build Superheavy-class spaceports around the Earth, moon and Mars over the coming years.
Tank didn’t burst, but leaked at 7.6 bar. This is a good result & supports idea of 304L stainless being better than 301. We’re developing our own alloy to take this even further. Leak before burst is highly desirable.
— Elon Musk (@elonmusk) June 15, 2020
Probably 6 months or so. 301 is certainly fine for orbit, but SpaceX 30X will be better.
— Elon Musk (@elonmusk) February 10, 2020
SpaceX is building floating, superheavy-class spaceports for Mars, moon & hypersonic travel around Earth https://t.co/zLJjz43hKw
— Elon Musk (@elonmusk) June 16, 2020
SOURCES – SpacexCentric, Spacex, Elon Musk, Boca Chica Gal, Marcus House
Written by Brian Wang, Nextbigfuture.com