Also known as chrome steel, 52100 is an extremely hard and wear-resistant material. These balls are often used in bearings.

Also known as mild steel, use these low-carbon steel balls in parts that don't require high strength.

With a diameter that’s held to a close tolerance, this material is hardened for increased wear and abrasion resistance.

The addition of molybdenum gives 316 stainless steel excellent corrosion resistance. Use it in a variety of marine and chemical-processing applications.

Widely used as bearings and in valves, 2017 aluminum is a durable, lightweight material.