It is well recognized that a diving tank is a tank that supplies air to a diver underwater. But in addition to this seemingly simple and unique role, there is a lot of variety. The flat metal cylinder for diving tanks has an amazing number of options. With the exception of a few exclusive models, all diving tanks are made of aluminium or steel alloy. Chromium molybdenum alloy will be used from time to time in specialized diving for sports, military use and technical diving. All styles have their own positive and negative points. Aluminium tanks are the lightest, although the significant difference underwater is minimal. The difference becomes more significant when the amount of effort required to move between dives is taken into account. Aluminium air tanks also usually have a positive buoyancy, which you may have to pay for by adding weights. This detail slightly interrupts their lightest weight advantage over steel tanks. Aluminium containers are generally cheaper than steel and ...