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Metal Balls

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Alumina Oxide Ceramic Balls

Ceramic Balls

Ceramic balls are particularly well suited for use in extremely harsh environments where high temperatures, corrosive and erosive substances are present.

Standard 99.5% alumina oxide ceramic balls have proven performance in wear, heat and corrosive environments, as well as, in maintaining dimensional stability at temperatures up to 20000 F.

Alumina resists oxidation and is tolerant to water, salt solutions, and many chemicals and acids, but is not suitable for use in hydrochloric or hydrofluoric acids or strong alkaline solutions.

Typical applications include pumps, valves and flow meters.

Alumina Oxide Ceramic Balls

Click Here for Ball Terms and Definitions (Grades Available and Tolerances)

Stock Part # Grade # Diameter Pkg Qty.  Price/Pkg
KB-1231 C24 0.125 Per 50  $61.00
KB-1232 C24 0.156 Per 50  $65.00
KB-1233 C24 0.187 Per 50  $69.00
KB-1234 C24 0.218 Per 50  $72.00
KB-1235 C24 0.250 Per 50  $76.00
KB-1236 C24 0.281 Per 50  $79.00
KB-1237 C24 0.312 Per 50  $83.00
KB-1238 C24 0.375 Per 25  $62.00
KB-1239 C24 0.437 Per 25  $83.00
KB-1240 C24 0.500 Per 25  $85.50
KB-1241 C24 0.625 Per 5  $86.30
KB-1242 C24 0.750 Per 5  $95.00
KB-1242 C24 1.000 Per 5  $128.00

Alumina Oxide Ceramic Balls:  

 

Grade

Size Range in Inches and Millimeters

C10*

1/8 - 1                    3.175 - 25.400

C24*

1/8 - 1                    3.175 - 25.400

48

1/8 - 2                    3.175 - 50.800

100

1/8 - 4                    3.175 - 101.600

200

1/8 - 6                    3.175 - 152.400

Alumina Oxide - *Alumina Oxide is specified as grade C10 and C24 which is equal to grade 10 and 24, except surface finish is less then or equal to 3Ra.

Balls per Pound

Size

Balls per Pound

Inches

Millimeters

1/8

3.175

6896.55

5/32

3.968

3558.72

3/16

4.762

2061.86

7/32

5.556

1297.02

1/4

6.350

870.32

9/32

7.143

610.50

5/16

7.937

445.43

3/8

9.525

257.20

13/32

10.318

203.17

7/16

11.112

166.11

1/2

12.700

108.62

5/8

15.875

56.39

3/4

19.050

33.01

1

25.400

13.85

Material Analysis

Property/Material..........................................................................

Alumina Oxide - 99.5% pure

Chemistry (wt%).............................................................................

99.5% Al2O3 - .5% Other

Hardness kg/mm3.......................................................................

1700 Hv

Density (gm/cc)..............................................................................

3.87

Transverse Rupture Strength (psi)...............................................

45,000

Ultimate Compressive Strength (psi)..........................................

>330,000

Ultimate Tensile Strength (psi).....................................................

31,000

Modulus of Elasticity (psi).............................................................

53 x 106

Maximum Work Temperature.......................................................

14000C

Fracture Toughness (K1C) kg/mm1.5...........................................

13.5

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