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SIZES SHOWN IN RED INDICATE MEDIA THAT ARE 2MM OR SMALLER

DESCRIPTION

SPECIFIC

GRAVITY

HARDNESS

RELATIVE

COST

SIZES AVAILABLE

METALLIC

Carbon Steel Balls

(SAE 1065 – Through-Hardened)

7.8

ROCKWELL C 60 – 62

Low

1

8

"

,

3

16

"

,

1

4

"

,

5

16

"

,

3

8

"

,

1

2

"

,

3

4

"*

Chrome Steel Balls (SAE 52100)

7.8

ROCKWELL C 60 – 67

Low to Moderate

1mm

,

2mm

,

1

8

"

,

5

32

"

,

3

16

"

,

7

32

"

,

1

4

"

,

5

16

"

,

3

8

"

,

1

2

"

,

3

4

"

,

1

"

Stainless Steel Balls (AISI 440-C)

7.7

ROCKWELL C 58 – 65

Moderate

2mm

*,

1

8

"

,

5

32

"

,

3

16

"

,

7

32

"

,

1

4

"

,

5

16

"

,

3

8

"

,

1

2

"

,

3

4

"

,

1

"

Steel Shot, Through-Hardened

7.6

ROCKWELL C 55 – 60

Low

0.25mm

,

0.50mm

,

0.60mm

,

0.71mm

,

0.85mm

,

1mm

,

1.18mm

,

1.40mm

,

1.70mm

,

2mm

,

2.36mm, 2.80mm

Forged Steel Balls

N/A

55 – 63HRC

Very Low 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 65mm, 75mm, 90mm, 100mm, 125mm

High Chrome Cast Balls 10–13%

N/A

Surface=≥60HRC

Core=≥58HRC

Very Low 6mm, 8mm, 10mm, 12mm, 15mm, 17mm, 20mm, 25mm, 30mm, 40mm, 50mm, 60mm,

70mm, 80mm, 90mm, 100mm, 110mm, 120mm

High Chrome Cast Balls 14–18%

N/A

Surface=≥62HRC

Core=≥60HRC

Very Low 6mm, 8mm, 10mm, 12mm, 15mm, 17mm, 20mm, 25mm, 30mm, 40mm, 50mm, 60mm,

70mm, 80mm, 90mm, 100mm, 110mm, 120mm

NON-METALLIC

Alumina 99.9%— Balls

3.9

Hv

10

= 1800

High

0.5mm

,

1mm

,

2mm

, 3mm, 5mm, 10mm, 15mm, 20mm, 25mm

99.5%— Balls

3.8

Hv 1300 kg/mm

2

Moderate

0.2mm

,

0.3mm

,

0.5mm

,

1mm

,

2mm

, 3mm, 5mm, 8mm, 10mm, 15mm, 20mm

94%— Balls

3.59

Hv 1200 kg/mm

2

Low to Moderate

0.5mm

,

1mm

,

2mm

, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 13mm, 15mm, 20mm

90%— Beads and Satellites

3.4 – 3.7

ROCKWELL 45N 75

Low

3mm,

7

32

" ,

1

4

" ,

3

8

"

,

1

2

"

Note: 3mm size are Beads-remaining four sizes are satellites

Alumina Beads

N/A

Mohs 9

VICKERS (0.5 kg) 1200 ± 50 Low to Moderate

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

Burundum Cylinders Alumina 90%— (White)

3.42

Mohs 9

Moderate

1

4

"

,

1

2

"

,

13

16

"

,

1

1

4

"

96%— (White)

3.65

Mohs 9+

Moderate

1

4

"

,

1

2

"

,

13

16

"

,

1

1

4

"

99%— (Tan)

3.85

Mohs 9+

Moderate

1

2

"

,

13

16

"

,

1

"

,

1

1

4

"

Ceramic (Steatite) Satellites

2.6 – 2.7

ROCKWELL 45N 60 – 65

Low to Moderate

1

4

"

,

5

16

"

,

3

8

"

,

1

2

"

, 20mm, 25mm

Glass Beads (Lead Free)

2.5

KNOOP 515 kg/mm

2

Low

0.25–0.50mm

,

0.40–0.60mm

,

0.6–0.8mm

,

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

Nylon Pellets

0.7 – 1.2

Low to Moderate

1

8

"

Silicon Carbide Balls

3.1

Hv 2500 kg/mm

2

Very High

5mm, 10mm, 15mm, 20mm

Silicon Nitride Balls

3.2

Hv

10

= 1300

Very High

2mm

, 3mm, 5mm, 10mm, 15mm, 20mm, 25mm

Tungsten Carbide Satellites or Balls

14.4 – 14.8

92.0 ± 0.5 Hra

Moderate to High

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.

Zirconium Oxide, High-Purity (Y

2

O

3

Stabilized)

95%— Balls

6.0

Hv 1150 kg/mm

2

High

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.

93%— Beads

6.0

Hv 1250 HV1

Moderate

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

Zirconium Oxide (CeO

2

Rare Earth-Stabilized)

Sizes up to 2.8–3.3mm are beads,

6mm and larger are satellites.

6.0

Hv 1200 – 1250

Moderate

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

Zirconium Silicate Beads

Sintered (58% ZrO

2

, 37% SiO

2

)

4.0

800 HV1

Moderate

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% ZrO

2

, 30% SiO

2

)

3.8

700 HV1

Moderate

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

1925 Akron-Peninsula Road

Akron, Ohio 44313-4896

Phone:

330.929.3333

Fax:

330.929.3034

unionprocess@unionprocess.com

www.unionprocess.com

© 2017 Union Process, Inc. All Rights Reserved.

*These sizes are available in large quantities only as a special order.