With a minimum of 10% chromium content, stainless steel is known for corrosion resistance. It's typically not as strong as steel and can be more difficult to machine.

Brass alloys consist primarily of copper, but they can contain as much as 40% zinc, which increases their machinability. They are often used for nuts, rivets, hinges, and locks.

Because PVC resists many acids and alkalies, it’s widely used for tanks and in chemical-processing applications. Also known as PVC Type 1.