Scuba Tank Sizes Steel

Compiled by huron scuba snorkel adventure travel inc.

Scuba tank sizes steel.

A scuba tank s capacity is determined by its size and pressure rating. Size of steel vs aluminum tanks. The size and working pressure of your scuba tank can be determined by looking at the markings on the crown of your tank. For example most aluminum tanks from the smallest 6 cuft pony bottle to an 80 cuft tank have a fill pressure of 3000 psi.

Because less material is needed to make them steel tanks are usually slightly smaller and lighter than aluminum. The difference between pressure volume it should be noted that the pressure of a tank is not a measure of the size or volume of a tank. Divers direct carries 4 sizes in blue. Steel tanks are usually more expensive than aluminum tanks.

There is a lot of information listed on the crown of the tank and the order in which the information is listed varies from tank to tank but the codes are standardized and easy to read if you know what to look for. Smaller than an aluminum tank of the same capacity a steel scuba tank is a more compact air supply solution a fact that becomes doubly important for twin tank setups. An 80 cubic foot steel tank rated to 3000 psi will be slightly smaller than an 80 cubic foot aluminum tank rated to 3000 psi because the tank walls are thinner. But if budget is not a concern steel tanks are the way to go.

If properly maintained steel tanks tend to last longer than aluminum tanks. The information is believed to be accurate but is not guaranteed. Steel tanks have thinner walls than aluminum tanks with an equal pressure rating. Scuba diving tank cylinder strap weight webbing belt with stainless steel buckle.

Steel dive tanks weigh more due to the material in which it s made requiring less weight to be used in a weight belt. Most steel and aluminum tanks have a diameter of 7 25 inches with a height of around 20 to 30 inches. 170mm rubber scuba diving cylinder tank boot for 12l steel tanks. Low pressure or high pressure.

The pressure in a scuba tank is measured in psi pounds per square inch or bar in metric. Steel scuba tanks are denser than aluminum tanks meaning you have to be less concerned with buoyancy issues especially at the end of a dive. The information below was compiled from a variety of sources including luxfer pressed steel tank catalina and oms. Scuba diving steel tank boot size 7 25.

For a 6 cuft bottle this means at 3000 psi the tank contains 6 cuft of air. The service life of a properly cared for modern steel scuba tank is widely considered to be 50 years or more.