Steel Scuba Tank Sizes

The service life of a properly cared for aluminum tank is more controversial but some dive shops won t fill an aluminum tank manufactured before 1990 due to concerns regarding sustained load cracking of aluminum alloys in wide use.

Steel scuba tank sizes.

Aluminum and steel scuba tank sizes. The size of a scuba diving tank will determine its capacity which is an important consideration. How to choose the best scuba tanks size. Most steel and aluminum tanks have a diameter of 7 25 inches with a height of around 20 to 30 inches.

Steel dive tanks weigh more due to the material in which it s made requiring less weight to be used in a weight belt. The capacity of a scuba cylinder is an important consideration. The capacity of any tank is measured in pressurized cubic feet. High pressure steel scuba tanks allow up to 3442 psi to be pumped into a cylinder while low pressure steel scuba tanks can fill up to 2640 psi.

Divers direct carries 4 sizes in blue. High pressure steel tanks will have a pressure range between 3300 psi to 3500 psi 227 240 bar. 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 service life of a properly cared for modern steel scuba tank is widely considered to be 50 years or more.

This is a benefit for some scuba divers. A scuba tank s capacity is determined by its size and pressure rating. There is no perfect size tank for all diving types and all divers. The most popular tank size that is used by recreational divers is the ones that hold 80 to 100 cubic feet of air.