How Material Affects Tube Bending Quality | Metal Fabrication If your product requires tube bending, the material is absolutely important. Certain materials are easier to bend, and the final product has different qualities. This article will focus on steel and aluminum because they are the most common materials used for pipes. (To find out which steel or aluminum is best for your application, please check this article.) If you have questions about other materials, please feel free to contact us. info@zec-industrygroup.com