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Rexalloy 35 Ball Valve Data Sheet
| Chemical Composition |
| Element |
Percentage |
| 1. Cobalt |
42.5% to 43.5% |
| 2. Chrome |
33.5% to 34.5% |
| 3. Tungsten |
18.0% to 19.08 |
| 4. Carbon |
2.38 to 2.5% |
| 5. Silicon |
1.0% to 1.2% |
| 6. Trace Elements |
1.08% |
Physical Characteristics
1. Rockwell "C" Hardness 57 to 63
2. Tolerances
a) diameter: +/- .001"
b) spherically : +/- .0001"
3. Surface Roughness in Micro-Inches 2.0
a) microfinish #8 or Better
4. Specific Gravity 8.76
5. Density (lb/in3) 0.316
Applications
Cobalt-Base Alloy Balls are used in extreme wear and
temperature applications, particularly where lubrication
is marginal. They are also used where a high
degree of corrosion resistance is desirable.
Specific areas of usage far REXALLOY®™35 Balls are:
-
Sub-surface oil well pumps
- with matching REXALLOY®™33 or 44 seats, they
serve as check flow valves
- Homogenizer units
- food and beverage processing plants, as suction and discharge valves when mated properly.
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