FeNi 50 is a nickel-iron, soft magnetic alloy containing 50% nickel. Mainly used in two areas, for energy conversion and information processing
In the power industry, mainly in the high magnetic field has a high magnetic induction and low core loss of the alloy. In the electronics industry, mainly at low or medium alloy having a high magnetic permeability and low coercive force. At high frequencies shall be made on a thin strip or alloy higher resistivity. Usually with sheet or strip.
Soft magnetic materials in exchange for use, due to the alternating magnetic eddy currents are induced inside the material, resulting in the loss, the smaller the resistance of the alloy, the greater the thickness, the higher the frequency of the alternating magnetic field, eddy current losses greater, magnetic reduce more. For this, the material must be made thinner sheet (tape), and the surface coated with an insulating layer, or the use of certain methods to the surface to form an oxide insulating layer, such alloys commonly used magnesium oxide electrophoresis coating.
Iron-nickel alloy mostly in the alternating magnetic field use, mainly for yoke iron, relay, Small Power Transformers and Magnetically shielded.
| Composition | % | C | P | S | Mn | Si | Ni | Cr | Cu | Fe |
| Content | min | | | | 0.30 | 0.15 | 49.0 | - | | Bal |
| max | 0.03 | 0.02 | 0.02 | 0.60 | 0.30 | 51.0 | - | 0.20 |
Physical Properties
| Density (g/cm3) | 8.2 |
| Electrical resistivity at 20ºC (mm2/m) | 0.45 |
| Linear expansion coefficient (10 -6 ºC -1 ) | 9.20 |
| Resistivity (μΩ·m) | 0.45 |
| Curie point (ºC) | 500 |
| Saturation magnetostriction coefficient (10 -6 ) | 25.0 |
| Melting point (ºC) | - |
Applications
• Safety valves, resolvers, actuators
• High precision current transformer cores
• Ground fault circuit breaker (relay parts)
About us
Shanghai Tankii Alloy Material Co., Ltd. specialized in production of Nichrome Alloy, Precision Alloy, Thermal bimetal strip and other alloy products.
Based on the principle of “first quality, sincere service”, our managing ideology is pursuing technology innovation and creating the top brand in the alloy field. We persist in Quality - the foundation of the survival. It is our forever ideology to serve you with full heart and soul. We committed to provide customers all over the world with high-quality, competitive products and perfect service.
Our products, such us nichrome wire, nichrome strip, fecral wire, fecral strip, thermocouple wire, nickel wire, nickel strip have been exported to Europe, USA, India, Southest Asia, South America,etc.
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