Titanium scuba tank

[rich2741]

.

Ultra high pressure vessel – (usually aluminum/carbon fiber/epoxy resin composite)
300 bar gas (4,351.13213190628 psi at 100F); service rated: 4,350 psi
burst disc should rupture at 4,785 psi



Max pressure vessel – (titanium, welded, no DOT approval; CPV for military use only)
414 bar gas (6,004.56234203066 psi at 100F); service rated : 6,000 psi
burst disc should rupture at 6,600 psi

 

[cldomson1]

get steel HP80s and jack them up to 3700 - very light and negative empty.

 

[jt_1208]

I know of a friend who's able to make titanium oxygen tank.
Is there a market for it?