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Grinding Balls & Other Grinding Media

GRINDING MEDIA SPECIFICATIONS

Click on the Grinding Media to view specifications.
Note: Sizes shown in red indicate media that is recommended for use in bead mills except where stated otherwise.

Click here for Metallic Grinding Media

Click here for Non-Metallic Grinding Media

Metallic

  • Carbon Steel
    Carbon Steel
    Grinding Balls
    CARBON STEEL GRINDING BALLS
    (SAE 1065–through-hardened)
    Specific Gravity: 7.8
    Hardness: ROCKWELL C 60–62
    Relative Cost: Low
    Sizes Available: 1/8", 3/16", 1/4", 5/16", 3/8", 1/2, 3/4"


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  • Chrome Steel
    Chrome Steel
    Grinding Balls
    CHROME STEEL GRINDING BALLS
    (SAE 52100)
    Specific Gravity: 7.8
    Hardness: ROCKWELL C 60–67
    Relative Cost: Low to Moderate
    Sizes Available: 1mm, 2mm,1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2", 3/4", 1"


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  • Stainless Steel
    Stainless Steel
    Grinding Balls
    STAINLESS STEEL GRINDING BALLS
    (AISI 440-C)
    Specific Gravity: 7.7
    Hardness: ROCKWELL C 58–65
    Relative Cost: Moderate
    Sizes Available: 2mm,1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2", 3/4", 1"


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  • Steel Shot
    Steel Shot,
    Through-Hardened
    STEEL SHOT, THROUGH-HARDENED
    Specific Gravity: 7.6
    Hardness: ROCKWELL C 55–60
    Relative Cost: Low
    Sizes Available: .25mm, .50mm, .6mm,.71mm, .85mm, 1mm, 1.18mm, 1.40mm, 1.70mm, 2mm, 2.36mm, 2.80mm


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  • Forged Steel
    Forged Steel
    Grinding Balls
    FORGED STEEL GRINDING BALLS
    Specific Gravity: N/A
    Hardness: 55–63HRC
    Relative Cost: Very Low
    Sizes Available:20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 65mm, 75mm, 90mm, 100mm, 125mm


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  • High Chrome Cast
    High Chrome Cast
    Grinding Balls
    HIGH CHROME CAST GRINDING BALLS 10-13%
    Specific Gravity: N/A
    Hardness: Surface=≥60HRC, Core=≥58HRC
    Relative Cost: Very Low
    Sizes Available: 6mm, 8mm, 10mm, 12mm, 15mm, 17mm, 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm

    HIGH CHROME CAST GRINDING BALLS 14-18%
    Specific Gravity: N/A
    Hardness: Surface=≥62HRC, Core=≥60HRC
    Relative Cost: Very Low
    Sizes Available: 6mm, 8mm, 10mm, 12mm, 15mm, 17mm, 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm

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Non-Metallic

  • Alumina Satellites
    Alumina Satellites
    ALUMINA 99.9% BALLS
    Specific Gravity: 3.9
    Hardness: Hv10 = 1800
    Relative Cost: High
    Sizes Available: .5mm, 1mm, 2mm, 3mm, 5mm, 10mm, 15mm, 20mm, 25mm

    ALUMINA 99.5% BALLS
    Specific Gravity: 3.8
    Hardness: Hv 1300 kg/mm2
    Relative Cost: Moderate
    Sizes Available: 0.2mm, 0.3mm, 0.5mm, 1mm, 2mm, 3mm, 5mm, 8mm, 10mm, 15mm, 20mm

    ALUMINA 99.8% SATELLITES
    Specific Gravity: 3.4-3.7
    Hardness: ROCKWELL 45N 78 – 79
    Relative Cost: Moderate
    Sizes Available: 1/4"

    ALUMINA 94% BALLS
    Specific Gravity: 3.59
    Hardness: Hv 1200 kg/mm2
    Relative Cost: Low to Moderate
    Sizes Available: 0.5mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 13mm, 15mm, 20mm

    ALUMINA 90% BEADS AND SATELLITES
    Specific Gravity: 3.4 - 3.7
    Hardness: ROCKWELL 45N 75
    Relative Cost: Low
    Sizes Available: 3mm, 7/32", 1/4", 3/8", 1/2"
    Note: 3mm size are Beads-remaining four sizes are satellites
  • Alumina Beads
    Alumina Beads
    ALUMINA BEADS
    Specific Gravity: N/A
    Hardness: Mohs 9, VICKERS (0.5 kg) 1200 ± 50
    Relative Cost: Low to Moderate
    Sizes Available: 0.25–0.34mm, 0.34–0.44mm, 0.4–0.6mm, 0.8–1.2mm, 1.2–1.6mm, 1.4–1.6mm, 1.6–1.8mm, 1.8–2.0mm, 2.0–2.5mm, 2.5–3.0mm
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  • Ceramic
    Ceramic (Steatite)
    Satellites
    CERAMIC (STEATITE) SATELLITES
    Specific Gravity: 2.6-2.7
    Hardness: ROCKWELL 45N 60-65
    Relative Cost: Low to Moderate
    Sizes Available: 1/4", 5/16", 3/8", 1/2", 20mm, 25mm

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  • Glass
    Glass Beads
    (Lead Free)
    GLASS BEADS (LEAD FREE)
    Specific Gravity: 2.5
    Hardness: KNOOP 515 kg/mm2
    Relative Cost: Low
    Sizes Available: 0.25–0.50mm, 0.40–0.60mm, 0.60.8mm, 0.75–1.0mm, 0.80–1.0mm, 1mm, 1.5mm, 1.0–1.25mm, 1.25–1.55mm, 1.55–1.85mm, 1.7–2.0mm, 2mm, 2.0–2.4mm, 2.4–2.9mm, 2.85–3.45mm, 3mm, 3.5mm, 3.6–4.1mm, 3.8–4.1mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 14mm, 16mm

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  • Silicon Carbide
    Silicon Carbide Balls
    SILICON CARBIDE BALLS
    Specific Gravity: 3.1
    Hardness: KNOOP 2500 kg/mm2
    Relative Cost: Very High
    Sizes Available: 5mm, 10mm, 15mm, 20mm

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  • Silicon Nitride
    Silicon Nitride Balls
    SILICON NITRIDE BALLS
    Specific Gravity: 3.2
    Hardness: Hv10 = 1300
    Relative Cost: Very High
    Sizes Available: 2mm, 3mm, 5mm, 10mm, 15mm, 20mm, 25mm

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  • Tungsten Carbide
    Tungsten Carbide
    Satellites
    TUNGSTEN CARBIDE SATELLITES
    Specific Gravity: 14.4-14.8
    Hardness: 92.0 ± 0.5 Hra
    Relative Cost: Moderate to High
    Sizes Available: 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 3/8", 7/16", 1/2", 9/16", 3/4", 1"
    Note: Smaller sizes beginning at 0.5mm available upon request.

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  • Zirconium Oxide Y203 95% Balls
    Zirconium Oxide - 95%,
    High-Purity
    (Y203 stabilized) Balls
    ZIRCONIUM OXIDE, High-Purity (Y203 STABILIZED)
    95% Balls
    Specific Gravity: 6.0
    Hardness: Hv 1150 kg/mm2
    Relative Cost: High
    Sizes Available: 0.03mm, 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.65mm, 0.8mm, 1mm, 1.25mm, 1.5mm, 2mm, 3mm, 5mm, 6mm, 8mm, 10mm, 15mm, 20mm, 25mm
    Note: 6mm and 8mm limited availability. Cylinders available in 3/8" and 1/2" sizes.

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  • Zirconium Oxide Y203 93% Beads
    Zirconium Oxide - 93%
    (Y203 stabilized) Beads
    ZIRCONIUM OXIDE, High-Purity (Y203 STABILIZED)
    93% Beads
    Specific Gravity: 6.0
    Hardness: Hv 1250 HV1
    Relative Cost: Moderate
    Sizes Available: 0.1mm, 0.15–0.28mm, 0.25–0.35mm, 0.35–0.45mm, 0.45–0.55mm, 0.6mm, 0.8mm, 1.0mm, 1.25mm, 1.5mm, 1.75mm, 2.0mm, 2.3mm

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  • Zirconium Oxide Rare Earth
    Zirconium Oxide
    (CeO2 rare
    earth-stabilized)
    ZIRCONIUM OXIDE (CeO2 RARE EARTH-STABILIZED)
    Specific Gravity: 6.0
    Hardness: Hv 1200 – 1250
    Relative Cost: Moderate
    Sizes Available: 0.4–0.6mm, 0.6–0.8mm, 0.8–1.0mm, 0.7–1.2mm, 1.0–1.2mm, 1.2–1.4mm, 1.4–1.6mm, 1.7–2.4mm, 2.4–2.8mm, 2.8–3.3mm, 6mm, 8mm, 10mm, 12.5mm, 16mm, 21mm, 26mm, 31mm
    Note: Sizes up to 2.8-3.3mm are beads. 6mm and larger are satellites.

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  • Zirconium Silicate
    Zirconium Sillcate
    Beads
    ZIRCONIUM SILICATE BEADS
    Sintered (58% Zr02, 37% SiO2)

    Specific Gravity: 4.0
    Hardness: 800 HVI
    Relative Cost: Moderate
    Sizes Available: 0.8–1.0mm, 1.0–1.2mm, 1.2–1.4mm, 1.4–1.6mm, 1.6–1.8mm, 1.8–2.0mm, 2.0–2.2mm, 2.2–2.4mm, 2.4–2.6mm, 2.5–2.8m

    ZIRCONIUM SILICATE BEADS
    Fused (68% Zr02, 30% SiO2)

    Specific Gravity: 3.8
    Hardness: 700 HVI
    Relative Cost: Moderate
    Sizes Available: 0.1–0.2mm, 0.2–0.3mm, 0.3–0.4mm, 0.4–0.6mm, 0.6–0.8mm, 0.8–1.0mm, 1.0–1.25mm, 1.25–1.6mm, 1.6–2.0mm, 2.0-2.5mm
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NOTE: Grinding balls and media are sold on a per pound basis, but ATTRITORS and DMQX-Mills are loaded by volume. Therefore, the more dense the media, the more pounds of media required. For instance, a machine requiring only 40 lbs. of stainless steel may require up to 80 lbs. of tungsten carbide. Information contained herein is accurate and reliable to the best of our knowledge, but our suggestions and recommendations cannot be guaranteed because the conditions of use are beyond our control.

Shapes including balls, satellites, balcones, cylinders
and diagonals are available upon request.


Ball

Satellite

Balcone

Cylinder

Diagonal