Shop No.1, Shivtirth Building, 10/12, Sindhi Lane, Mumbai - 400004.
Kovar Pipe
What is Kovar Pipe ?
Kovar pipe is a nickel–iron alloy known for its ability to bond with glass and ceramics. It is commonly used to seal semiconductor optical devices, electronic tubes, and precision components. Kovar pipe has a density of 8.24 g/cm³, is also used in optical and electronic packaging. Parag Metals is a trusted kovar pipe supplier in Mumbai, offering quality kovar tubes and pipes to perform in harsh environments.
Table of Content
- Advantages of Kovar Pipe
- Uses of Kovar Pipe
- Specification of Kovar Pipe
- Available Types of Kovar Pipe
- Kovar Pipe Equivalent Grades
- Chemical Composition Of Kovar Pipe
- Kovar Pipe Mechanical Properties
- Kovar Pipe Size, Thickness Chart
- Application Industries of Kovar Pipe
- Export Countries for Kovar Pipe
Kovar Pipe, Kovar Pipe Supplier In Mumbai, Kovar Pipe Supplier, Kovar Pipe Distributor, Kovar Pipe Dealer, Kovar Pipe Exporter, Kovar Pipe Stockist, Kovar Pipe Wholesaler, Kovar Pipe Price.
Kovar pipe is made from nickel, cobalt, and iron. This composition provides low coefficient of expansion and thermal stability. Our kovar pipes come in a variety of sizes and finishes. Outer diameters range from 2mm to 40mm, with wall thicknesses between 0.3mm to 3.0mm. Lengths go up to 6 meters. We maintain consistent quality, and our kovar pipe price is competitive based on size and order quantity. As a kovar pipe stockist and wholesaler, we ensure quick delivery from ready inventory.
Every kovar tube is tested for strength, precision, and finish. We follow ASTM F15 standards and carry out strict quality checks before dispatch. Each pipe is packed securely to prevent damage in transit. As a leading kovar pipe exporter and distributor, we ensure every shipment meets global quality norms and delivers dependable performance.
Advantages of Kovar Pipe
- Low coefficient of thermal expansion, closely matching that of borosilicate glass and ceramics.
- Excellent hermetic sealing properties for glass-to-metal and ceramic-to-metal joints.
- Good mechanical strength and dimensional stability over a wide temperature range.
- Maintains integrity under thermal cycling and vacuum conditions.
- Good machinability and weldability for precision fabrication.
Uses of Kovar Pipe
- Glass-to-metal sealed components in electronics and vacuum devices.
- Hermetic enclosures for semiconductors and electronic circuits.
- Scientific instruments requiring dimensional stability.
- High-vacuum systems and aerospace applications.
- Medical and telecommunication equipment housings.
Specification of Kovar Pipe
| Standards | ASTM F15, AMS/MIL-I-23011 |
|---|---|
| Size | ½” NB – 24″ NB |
| Range | 6.35 mm OD up to 254 mm OD in 0.6 TO 20 mm thickness |
| Schedule | SCH 10 – SCH XXS |
| Type | Seamless / ERW / Welded |
| Length | Single Random, Double Random & Cut Length |
| End | Plain End, Beveled End, Treaded |
Available Types of Kovar Pipe
Kovar Seamless Pipes
Kovar Welded Pipe
Kovar ERW Pipe
Kovar Rectangle Pipes
Kovar Round Pipe
Kovar Square Pipe
Kovar Pipe Equivalent Grades
| ASTM | UNS | Workstoff | AMS |
|---|---|---|---|
| F15 | K94610 | 1.3981 | I-23011 CL1 |
Chemical Composition Of Kovar Pipe
| Weight % | Ni | Fe | Co | C | Mn | Si | Al | Cr | Mg | Zr | Ti | Cu | Mo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alloy K Kovar | 29.0 | 53.0 | 17.0 | 0.04 max | 0.50 max | 0.20 | 0.10 max | 0.20 max | 0.10 max | 0.10 max | 0.10 max | 0.20 max | 0.20 max |
Kovar Pipe Mechanical Properties
| Material | Condition | Yield Strength (0.1% Offset) | Tensile Strength | Elongation % | ||
|---|---|---|---|---|---|---|
| psi | MPa | psi | MPa | |||
| Alloy K Kovar | Annealed | 49,000 | 340 | 75,000 | 520 | 42 |
Kovar Pipe Sizes
| Wall | Sizes ( O.D.) |
|---|---|
| .010 | 1/16″ , 1/8″ , 3/16″ |
| .020 | 1/16″ , 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ |
| .012 | 1/8″ |
| .016 | 1/8″ , 3/16″ |
| .028 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 3/4″ , 1″ , 1 1/2″ , 2″ |
| .035 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 7/16″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .049 | 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/8″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .065 | 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 3/4″ , 2″ , 2 1/2″ , 3″ |
| .083 | 1/4″ , 3/8″ , 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 7/8″ , 2″ , 2 1/2″ ,3″ |
| .095 | 1/2″ , 5/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .109 | 1/2″ , 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .120 | 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 2 1/4″ , 2 1/2″ , 3″ |
| .125 | 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 3″ , 3 1/4″ |
| .134 | 1″ |
| .250 | 3″ |
| .375 | 3 1/2″ |
Thickness Chart of Kovar Pipe
| Nominal size [inches] | Outside diameter [inches] | Outside diameter [mm] | Wall thickness [inches] | Wall thickness [mm] | Weight [lb/ft] | Weight [kg/m] |
|---|---|---|---|---|---|---|
| 1/8 | 0.405 | 10.3 | 0.095 | 2.41 | 0.31 | 0.47 |
| 1/4 | 0.54 | 13.7 | 0.119 | 3.02 | 0.54 | 0.8 |
| 1/2 | 0.84 | 21.3 | 0.147 | 3.73 | 1.09 | 1.62 |
| 3/4 | 1.05 | 26.7 | 0.154 | 3.91 | 1.47 | 2.2 |
| 1 | 1.315 | 33.4 | 0.179 | 4.55 | 2.17 | 3.24 |
| 1 1/4 | 1.66 | 42.2 | 0.191 | 4.85 | 3 | 4.47 |
| 1 1/2 | 1.9 | 48.3 | 0.2 | 5.08 | 3.63 | 5.41 |
| 2 | 2.375 | 60.3 | 0.218 | 5.54 | 5.02 | 7.48 |
| 2 1/2 | 2.875 | 73 | 0.276 | 7.01 | 7.66 | 11.41 |
| 3 | 3.5 | 88.9 | 0.3 | 7.62 | 10.25 | 15.27 |
| 3 1/2 | 4 | 101.6 | 0.318 | 8.08 | 12.5 | 18.63 |
| 4 | 4.5 | 114.3 | 0.337 | 8.56 | 14.98 | 22.32 |
| 5 | 5.563 | 141.3 | 0.375 | 9.53 | 20.78 | 30.97 |
| 6 | 6.625 | 168.3 | 0.432 | 10.97 | 28.57 | 42.56 |
| 8 | 8.625 | 219.1 | 0.5 | 12.7 | 43.39 | 64.64 |
| 10 | 10.75 | 273 | 0.594 | 15.09 | 64.43 | 96.01 |
| 12 | 12.75 | 323.8 | 0.688 | 17.48 | 88.63 | 132.08 |
| 14 | 14 | 355.6 | 0.75 | 19.05 | 106.13 | 158.1 |
| 16 | 16 | 406.4 | 0.844 | 21.44 | 136.61 | 203.53 |
| 18 | 18 | 457 | 0.938 | 23.83 | 170.92 | 254.55 |
| 20 | 20 | 508 | 1.031 | 26.19 | 208.87 | 311.17 |
| 24 | 24 | 610 | 1.125 | 30.96 | 296.58 | 442.08 |
Application Industries of Kovar Pipe
Export Countries for Kovar Pipe
- ASIA – China, Thailand, Singapore, Sri lanka, Bangladesh, Japan, Philippines, Vietnam, Nepal, Bhutan
- Middle East – Kuwait, Dubai, Saudi Arabia, Qatar, Oman, Bahrain, Jordan
- Europe – United Kingdom, Italy, Belgium, France, Croatia, Spain, Germany, Russia, Denmark
- South America – Argentina, Chile, Brazil, Colombia, Paraguay
- Africa – Ghana, South Africa