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    4 Products

    Extra-Hard C2 Tungsten Carbide

    Machine long-lasting tools, such as end mills and inserts, with these rods. Tungsten carbide, sometimes called carbide, is harder than our Corrosion-Resistant Tungsten with excellent wear resistance. Its extreme hardness lets cutting edges stay sharp far longer than high-speed steel.
    Balls
    Image of Product. Front orientation. Tungsten. Tungsten Carbide, C2 Carbide, Balls.
    Dia.,
    mm
    Dia. Tolerance,
    mm
    Mechanical
    Finish
    Yield
    Strength
    Hardness
    Temper
    Rating
    Pkg.
    Qty.
    Pkg.
    15-0.0025 to 0.0025PolishedNot RatedRockwell C75 (Extra Hard)Not Rated19686K79000000
     

    Hardened Ultra-Wear-Resistant 440C Stainless Steel Balls

    Image of Product. Front orientation. Stainless Steel. Hardened Ultra-Wear-Resistant 440C Stainless Steel Balls.
    The best choice for high-performance bearings and valves, these 440C stainless steel balls are among the strongest, hardest, and most wear-resistant we offer. They’re passivated to wash away surface particles that cause rust, and they’re polished to a mirror-like finish that contaminants can’t stick to. The result is balls that stay smooth and stand the test of time—even at temperatures up to 800° F. They’re made to strict ISO 3290 standards for roundness and surface quality.
    These balls are magnetic, so you can use them in separators, sensors, and automated handling systems that use magnetic pickup or positioning.
    Grade 25—Precision-ground to tighter tolerances than Grade 100 balls. Use them in high-accuracy assemblies.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Stainless
    Steel Balls
    Dia.,
    mm
    Dia. Tolerance,
    mm
    Hardness
    Specs.
    Met
    Magnetic
    Properties
    Appearance
    Pkg.
    Qty.
    Pkg.
    Grade 25
    15-0.0025 to 0.0025Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like51598K36000000
     

    Steel Balls

    Image of Product. Front orientation. Steel. Steel Balls.
    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
    15-0.13 to 0.13Case Hardened44,000TumbledRockwell C60 (Extra Hard)Mirror Like5096455K143000000
     
    Wear-Resistant 52100 Alloy Steel
    15-0.0025 to 0.0025Hardened295,000—Rockwell C60 (Extra Hard)Mirror Like59292K520000
     
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