What type of cylinder is typically used for storing oxygen?

Seamless steel or lightweight alloy cylinders are the standard choice for storing oxygen due to their strength, durability, and ability to withstand the high pressures at which oxygen is stored. These materials ensure that the cylinders can safely contain the gas without risk of rupture, which is crucial in both medical and industrial applications.

Additionally, seamless steel provides a high level of integrity, minimizing the risk of leaks. The lightweight alloy variants also offer advantages in terms of portability and ease of handling while maintaining the necessary strength and safety standards for high-pressure gas storage. The other materials mentioned simply cannot provide the same level of safety or effectiveness for oxygen storage, making seamless steel or lightweight alloy cylinders the appropriate and superior choice in this context.