What are the two types of materials commonly used to make scuba tanks?

Scuba tanks are primarily constructed from steel and aluminum due to their strength, lightweight properties, and resistance to corrosion. Steel tanks tend to be more robust and can hold higher pressures, which allows for greater volume and longer dive times in a smaller and lighter package overall. Aluminum tanks, on the other hand, are popular for their lightweight nature and good corrosion resistance, making them easier to transport and use.

Both materials are designed to withstand the high pressures associated with holding compressed air for scuba diving, ensuring safety during dives. They also undergo extensive testing and certification to meet safety standards, providing divers with reliable equipment for underwater exploration.