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| Customization: | Available |
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| Color: | Silver |
| Shape: | Round Tube |
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This is a precision 4J29 alloy tubing, also known as Kovar. It is a nickel-cobalt ferrous alloy designed to match the thermal expansion rate of borosilicate glass and ceramic materials. This makes it the ideal choice for creating reliable, hermetic seals in demanding electronic and aerospace applications.
Key Features
Ultra-Low Thermal Expansion: Matches the CTE of borosilicate glass for perfect sealing.
Excellent Hermeticity: Creates strong, reliable gas-tight seals.
High Temperature Resistance: Maintains performance in demanding environments.
Precision Manufactured: Seamless construction with tight dimensional tolerances.
Good Corrosion Resistance: Provides long-term durability.
| Property | Description |
|---|---|
| Material | 4J29 Kovar Alloy (Ni-Co-Fe) |
| Standard | ASTM F15 |
| Key Feature | Matched CTE with borosilicate glass |
| Temper | Annealed |
| Process | Seamless cold drawn |
| Surface | Bright smooth finish |
| OD | 1.6mm (customizable) |
| ID | 1.3mm (customizable) |
| Wall Thickness | 0.15mm (customizable) |
| Length | 1.6mm (customizable) |
Glass-to-metal seals in electronic packages
Microwave and RF components
Aerospace and defense systems
Laser and optical device packaging
Sensor hermetic encapsulation
Our company Principle is " Quality first, Customer first".
CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got Iso9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel-based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, precision alloy, FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.
1, We're able to design and develop the product what our customers require and meet their requirements through providing the appropriate engineering drawings or samples.
2, We can provide the products within a week after payment.
3, Wecan provide sample of the products customer need.
4, We always insist on "Quality first, Customer first" as our business philosophy.
Question: Are you a trading company or manufacturer?
Answer: We're manufacturer.
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