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.

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"


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Chrome Steel
Chrome Steel
Grinding Balls
CHROME STEEL GRINDING BALLS
(SAE 52100)
Specific Gravity: 7.8
Hardness: ROCKWELL C 62–66
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 55–64
Relative Cost: Moderate
Sizes Available: 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: 7.7
Hardness: ROCKWELL C 55–60
Relative Cost: Low
Sizes Available: .25mm, .50mm, .71mm, .85mm,
1mm, 1.18mm, 1.40mm, 1.70mm, 2mm

2.36mm, 2.80mm


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Non-Metallic
Alumina
Alumina
ALUMINA    
99.9% Balls
Specific Gravity:
3.9
Hardness: Hv 1750 kg/mm2
Relative Cost: High
Sizes Available: 1mm, 2mm
3mm, 5mm, 10mm
  99.5% Balls
Specific Gravity:
3.4–3.7
Hardness: Hv 1350 kg/mm2
Relative Cost: Moderate
Sizes Available: 0.2mm, 0.3mm, 0.5mm, 1mm, 2mm
3mm, 5mm, 8mm, 10mm, 15mm, 20mm
  99.8% Satellites
Specific Gravity:
3.4 - 3.7
Hardness: ROCKWELL 45N 78-79
Relative Cost: Moderate
Sizes Available: 1/4"
         
94% Balls
Specific Gravity:
3.4–3.7
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
  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
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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"

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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: 0.4–0.6mm, 0.5–0.75mm, 0.6–0.8mm,
0.75–1.0mm,0.8–1.0mm, 1.0–1.2mm, 1.0–1.25mm,
1.1–1.3mm, 1.2–1.4mm, 1.25–1.55mm, 1.4–1.6mm,
1.55–1.85mm, 1.6–1.8mm, 1.7–2.0mm, 1.8–2.0mm

2.0–2.3mm, 2.0–2.4mm, 2.3–2.6mm, 2.3–2.7mm,
2.5–2.85mm, 2.8–3.2mm, 2.85–3.3mm, 3.2–3.8mm,
3.3–3.6mm, 3.6–4.1mm, 3.7–4.3mm, 4.2–4.8mm,
4.7–5.3mm, 5.0mm, 5.7–6.3mm, 6.0mm, 6.7–7.3mm,
7.0mm, 7.6–8.4mm, 8.0mm, 8.6–9.4mm, 9.0mm,
9.5–10.5mm, 10mm, 10.5–11.5mm, 12mm, 14mm,
15mm, 16mm

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Nylon
Nylon Pellets
NYLON PELLETS
Specific Gravity: 0.7-1.2
Relative Cost: Low to Moderate
Sizes Available: 1/8"

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Silicon Carbide
Silicon Carbide
Balls
SILICON CARBIDE BALLS
Specific Gravity: 3.1
Hardness: KNOOP 2800 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: Hv 1400-1500 kg/mm2
Relative Cost: Very High
Sizes Available: 5mm, 10mm, 15mm, 20mm, 25mm

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Tungsten Carbide
Tungsten Carbide
Satellites
TUNGSTEN CARBIDE SATELLITES
Specific Gravity: 14.4-14.8
Hardness: 88-89HRA
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"
Note: some smaller sizes available upon request

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Zirconium Oxide Y203 95% Balls
Zirconium Oxide - 95%,
High-Purity
(Y203 stabilized) Balls
ZIRCONIUM OXIDE (Y203 STABILIZED)
95% Balls
Specific Gravity: 6.0
Hardness: Hv 1280 kg/mm2
Relative Cost: High
Sizes Available: 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

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Zirconium Oxide Y203 93% Beads
Zirconium Oxide - 93%
(Y203 stabilized) Beads
ZIRCONIUM OXIDE (Y203 STABILIZED)
93% Beads
Specific Gravity: 6.0
Hardness: Hv 1280 kg/mm2
Relative Cost: Moderate
Sizes Available: 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm,
0.6mm, 0.8mm, 1mm, 1.25mm, 1.5mm, 1.75mm, 2mm, 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 1150kg/mm2
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
  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: Other shapes including balcones, cylinders and diagonals are available upon request.
balcones

cylinders

diagonals