Kovar (Fe-Ni-Co) Spherical Powder
Formula | Fe-Ni-Co, Iron-Nickel-Cobalt |
Synonyms | Kovar spherical particles, Kovar spherical powders, Kovar Powder, Kovar thermal spray powder, Kovar gas atomized powder |
Appearance | Black Powder |
Particle Size | 0-45 um, 45-105 um, can be customized upon request |
Melting Point | 2640 °C |
Density | 8.35 g/cm 3 |
Tensile Strength | 517 Mpa |
Yield Strength | 345 Mpa |
Description of Kovar (Fe-Ni-Co) Spherical Powder
Kovar (Fe-Ni-Co) spherical powder is composed of approximately 54% iron, 29% nickel, and 17% cobalt. it’s also known as ASTM F15 or Alloy 29-17. Kovar is widely used in applications requiring a tight seal between metal and glass or ceramics, such as in electronics, vacuum tubes, and semiconductor packaging.
Princeton Powder is a leading supplier of Kovar (Fe-Ni-Co) spherical powder. We specialize in a comprehensive range of spherical powder products and possess extensive expertise in additive manufacturing (3D printing) industry. ASTM F15 Kovar powder is for sale at a competitive price.
Chemical Composition
| Chemical Composition（wt%） | |||||
Ni | Fe | Co | Cr | Mo | C | |
HM-Kovar (Fe-Ni-Co) | 28.5-29.5 | Bal. | 16.8-17.8 | ≤0.20 | ≤0.20 | ≤0.03 |
Si | P | S | Cu | Mn |
| |
≤0.03 | ≤0.02 | ≤0.02 | ≤0.20 | ≤0.5 |
| |
Particle Size | 0-15μm, 15-45μm, 45-75μm, 45-150μm, or customized. | |||||
Particle Size distribution
0-15μm, 15-53μm, 45-105μm, 45-150μm. (Various particle sizes can be customized)
Applications
- Electronic Packaging: Sealing metal to glass or ceramics.
- Semiconductor Devices: Creating reliable connections in high-precision electronics.
- Vacuum Tubes: Ensuring hermetic seals for electronic component
Spherical kovar Powder Reference
Characterization of Kovar Material Produced by Powder Metallurgy
- In this study, production parameters of kovar material produced by powder metallurgy method was determined and powder metal parts were characterized. Chemical composition of the kovar material analyzed and elemental powders were stirred in three-dimensional mixer for 2 hours. The mixture powder was pressed at uni-directional press.
Equivalent materials to super alloy KOVAR are listed below: AMS 7726. AMS 7727. AMS 7728.
Kovar alloy is a vacuum melted, iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties.