Kovar Flanges Manufacturer, Supplier & Stockist
We offer High Quality Kovar Flanges in Different Types Like Kovar Slip On Flange, Kovar Blind Flange, Kovar Weld Neck Flanges, Kovar Socket Weld Flanges, Kovar Plate Flanges, Kovar Lapped Joint Flanges, Kovar Threaded Flanges, Kovar Ring Type Joint Flanges
We have Kovar Flanges in Huge Quantity in our Stockyard at ready Stock at Best Price
Jayant Impex is acknowledged as a manufacturer, exporter & suppliers of Kovar Flange & Stainless steel Flanges (Gr. 304, 304L, 316, 316L) available in a variety or grades, materials, and finishes, in metric and inch sizes. These Kovar Flange are manufacture in different Type of Flanges like Kovar Blind Flange, Kovar Spectacle Blind Flange, Kovar Slip On Flange, 1 Socket Welding Flange, Kovar Welding Neck Flange, SORF Flanges, Kovar Collar Flange, Kovar Plate Flange, Kovar Raised Face Flange, Kovar Flat Face Flange, SWRF, WNRF, BLRF, Kovar Lapped Joint Flange, Kovar Ring Type Joint Flange, Kovar Threaded Flange & Kovar Long Welding Neck Flange
Kovar is an alloy formulated of Nickel, Chromium and Iron witd extension of Molybdenum, Copper and Titanium. The alloy invented to contribute exceptional resistance to many corrosive environments and reducing environments tdat acquire sulphuric acid and phosphoric acid. The nickel content in tde alloy is acceptable for tde resistance to chloride ion and stress corrosion cracking. The alloy has exceptional anti- oxidation and non-oxidizing heat acid performance. The titanium content in tde alloy sustains to resists intergranular attack after fabrication and pitting. The alloy has good welability by all conventional mechanism.
Kovar Flange Type
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Incoloy® 330 is high in nickel and chromium that provides good resistance to carburization, oxidation, and nitridation. Incoloy® 330 is welded easily by all conventional processes; it can be formed hot (between 1750-1200º F) and cold. Incoloy® 330 is used for industrial heating furnaces, muffles, retorts, boxed and baskets.
Chemical Composition for Kovar Flanges
| Chemical Analysis of Kovar® (UNS K94610) | |||||||||||||||
| C | MN | P | S | Si | Cr | Ni | Mo | Cu | Co | Cb+Ta | Ti | Al | Fe | Other | Other |
| .02 max | .30 max | .20 max | 29.0 max | 17.0 max | bal | ||||||||||
Kovar Alloy Physical Properties
| Density | lb/cu in | 0.302 |
| Specific Gravity | 8.36 | |
| Curie Temp | °F | 815 |
| °C | 435 | |
| Melting Point | °F | 2640 |
| °C | 1449 | |
| Electrical Resistivity | Micro-ohm-cm | 40 |
| Micro-ohm-cm | 294 | |
| Thermal Conductivity | W/cm °C | 0.17 |
| BTU-in/sq. ft-hr- | 120 | |
| Specific Heat | Cal/g- °C | 0.11 |
| BTU/lbm- °F | 0.11 | |
| Thermal Expansion | ppm/°F (75°F to 842°F) | 2.9 |
| ppm/°C (25°C to 450°F) | 5.3 |
Kovar Alloy Mechanical Properties
| Tensile Strength |
ksi | 75 |
| MPa | 518 | |
| Yield Strength | ksi | 40 |
| MPa | 276 | |
| Elongation | % in 2 in. |
30 |
| Typical Hardness Ann. |
Rockwell | HRB 80 |
| Modulus of Elasticity |
Mpsi | 30 |
| kMPa | 207 |
Kovar Alloy Linear Coefficient of Thermal Expansion
| Degree C | Degree C | ||
| 30-100 | — | 30-450 | 5.1 – 5.5 |
| 30-150 | — | 30-475 | — |
| 30-200 | 5.5 | 30-500 | 6.2 |
| 30-250 | — | 30-525 | — |
| 30-300 | 5.1 | 30-550 | — |
| 30-325 | — | 30-600 | 7.9 |
| 30-350 | — | 30-700 | 9.3 |
| 30-375 | — | 30-800 | 10.4 |
| 30-400 | 4.6 – 5.2 | 30-900 | 11.5 |
| 30-425 | — | 30-1000 | — |