Pure Nickel Capillary Tube
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Product Details:
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| Place of Origin: | CHINA |
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| Brand Name: | JINXING |
| Certification: | ISO 9001 |
| Model Number: | K94610 - Kovar Rod |
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Payment & Shipping Terms:
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| Minimum Order Quantity: | 30 kg |
| Price: | Negotiable |
| Packaging Details: | plywood cases |
| Delivery Time: | 15-20 days |
| Payment Terms: | T/T, D/P, L/C, D/A, Western Union, MoneyGram |
| Supply Ability: | 2000 kg per month |
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Detail Information |
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| Material: | Kovar Rod | Size: | Dia 8 - 100mm X L |
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| Density: | 8.37 G/cc | Tensile Strength: | 592 MPa |
| Hardness: | 70 HRB | Elongation: | 29% |
| Thermal Conductivity: | 17.2 W/m. K | Applications: | Sealing Alloy |
| Highlight: | 4J29 Alloy Kovar Rod,Nickel-Iron-Cobalt Rod,UNS K94610 Alloy Kovar Rod |
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Product Description
Kovar Rod is a low expansion metal of iron nickel cobalt melted in vacuum. The chemical composition of Kova is controlled within a narrow range to ensure that the accurate uniform thermal expansion performance is continuously maintained. The Kova manufacturing process utilizes high-end quality control to ensure uniform physical and mechanical properties for deep drawing, stamping and CNC processing.
| Chemical Compositions | |
| Element | Content |
| NICKEL (Ni) | 29 |
| COBALT (Co) | 17 |
| MANGANESE(Mn) | 0.5 |
| SILICON (SI) | 0.2 |
| SULFUR (S) | 0.025 |
| CHROMIUM(Cr) | 0.2 |
| COPPER (Cu) | 0.2 |
| MOLYBDENUM (Mo) | 0.2 |
| ZIRCONIUM (Zr) | 0.1 |
| PHOSPHORUS (P) | 0.025 |
| CARBON (C) | 0.06 |
| IRON | BALANCE |
The expansion alloy Kovar is precisely formulated and controlled so that its coefficient of thermal expansion is very close to that of hard glass or ceramic, meaning that it expands and contracts at similar rates. As such, it is well suited for applications where it is used in combination with glass or ceramic materials, especially where an airtight seal must be maintained over a wide temperature range. Kovar's other key strengths include:
It is used to make iron nickel cobalt alloy strips, bars, plates and pipes matched with hard glass for sealing. Suitable for transmitting tube, oscillating tube, pilot tube, transistor, sealed plug, relay shell and other electric vacuum devices. It has a certain linear expansion coefficient in the temperature range of 20 ℃ - 450 ℃, and can match with hard glass to seal firmly.
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