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Easy-to-Machine Thermally Stable Kovar Nickel Alloy Rods
- Yield Strength: 55,000 psi
- Hardness: Rockwell B105 (Hard)
- Temper: Condition B (1/4 Hard)
- Specifications Met: ASTM F15
This nickel-iron-cobalt alloy expands at the same rate as glass when heated. It offers better machinability than Invar 36 and is often used anywhere a dependable glass-to metal seal is required, such as in diodes and microwave tubes.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
| Dia. | Dia. Tolerance | Mechanical Finish | Straightness Tolerance | 1/2 ft. Lg. | 1 ft. Lg. | 3 ft. Lg. | |
| 3/16" | -0.002" to 0.002" | Ground | 1/8" per 5 ft. | 0000000 | |||
| 1/4" | -0.002" to 0.002" | Ground | 1/8" per 5 ft. | 0000000 | |||
| 3/8" | -0.002" to 0.002" | Ground | 1/8" per 5 ft. | 0000000 | |||
| 1/2" | -0.002" to 0.002" | Ground | 1/8" per 5 ft. | 0000000 | |||
| 5/8" | -0.002" to 0.002" | Ground | 1/8" per 5 ft. | 0000000 | |||
| 3/4" | -0.002" to 0.002" | Ground | 1/8" per 5 ft. | 0000000 |