Compressed gas cylinders are primarily made of which material?

Compressed gas cylinders are primarily made of seamless steel due to the material’s strength, durability, and ability to withstand high pressures. Steel cylinders are designed to safely contain gases at pressures ranging from several hundred to several thousand psi. The seamless construction eliminates potential weak points that could form in welded cylinders, making them safer for storage and transport.

Seamless steel also has excellent resistance to impact and corrosion when properly treated, making it suitable for various environments where gas cylinders are used. This enhanced safety and reliability are critical because any failure in a compressed gas cylinder can lead to dangerous situations, including explosive ruptures. Therefore, while alternatives like aluminum and composites are used under specific conditions, seamless steel remains the primary material for the majority of high-pressure gas cylinders.