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About Steel
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Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.
Steel Balls
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Multipurpose Low-Carbon Steel—Low-carbon steel balls are our easiest steel balls to machine. They are often used for parts that don’t require high strength, such as knobs. These balls can be surface hardened with heat treating for added wear resistance.
Wear-Resistant 52100 Alloy Steel—High carbon and chromium content makes this 52100 alloy steel extremely hard and resistant to wear. It’s also known as chrome steel. Often used as bearings, these balls are hardened for increased abrasion and impact resistance.
Dia., mm | Dia. Tolerance, mm | Heat Treatment | Yield Strength, psi | Mechanical Finish | Hardness | Appearance | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Multipurpose Low-Carbon Steel | |||||||||||
| 9 | -0.13 to 0.13 | Case Hardened | 44,000 | Tumbled | Rockwell C60 (Extra Hard) | Mirror Like | 250 | 96455K137 | 000000 | ||
Wear-Resistant 52100 Alloy Steel | |||||||||||
| 9 | -0.0025 to 0.0025 | Hardened | 295,000 | — | Rockwell C60 (Extra Hard) | Mirror Like | 20 | 9292K44 | 0000 | ||
