-
tel:
+86 17625110110 -
email:
klaus@hralloys.com
Controlled Expansion Iron-nickel Alloy NILO 50 for Sealing to Glass in Making Reed Switch
It’s ommon name has Alloy 52 / Pernifer 50 / NILO 50 / Glass Seal 52 / N50 / FeNi50 / 50H / ASTM F30 / UNS N14052
A controlled expansion alloy, consisting of 51% Nickel, balance Iron, used in a wide variety of electronic applications, especially for glass seals. Alloy 52 is a nickel iron alloy whose coefficient of expansion closely mirrors soft glass. Applications for this product include magnetic reed switches and seals that need controlled linear expansion to approximately 525 °C.
Glass Seal 52 is suitable for the applications who require low coefficient of expansion, such as production, storage and transportation of liquid gas, temperature regulation devices working below 200℃, aperture mask, unit frameworks working below -200℃ and so on.
Alloy 52 Basic Chemical Composition (Weight %):
Ni | Cr | Mn | Si | C | Al | Mg | P | S | Fe |
50.50 | 0.10 max | 0.60 max | 0.30 max | 0.05 max | 0.10 max | 0.50 max | 0.025 max | 0.025 max | Balance |
Typical Mechanical Properties
| ||
Alloy 52 | Annealed | As Rolled |
Ultimate Tensile Strength (PSI) | 75,000 | 130,000 |
Yield Strength (PSI) | 30,000 | 125,000 |
Elongation | 30% | 1% |
Modulus of Elasticity (PSI) | 24 x 10e6 | |
Poisson's Ratio | 0.29 | |
Typical Physical Properties
| |
Density | 0.300 lbs/cu in |
Melting Point | 1425° C |
Electrical Resistivity @ RT | 43 Microhm-cm |
Temp. Coefficient Resistivity (20 to 100° C)
| 2900 PPM/°C |
Thermal Expansion Coefficient (30 to 400° C) | 10.0 x 10e-6/°C |
Applications
Glass to metal seals for electronic tubes, automotive and industrial lamps, and specialty hermetic devices.
FAQ:
Q: Are you a trading company or a manufacturer?
A: We are a direct factory with production lines and workers. Everything is flexible and there is no need to worry about intermediariesOr additional fees for traders.
Q: Which countries do you export to?
A: Our products are mainly exported to Australia, Canada, Britain, the United States, Germany, Thailand, South Korea and so on.
Q: Do you provide samples? Is it free or extra?
A: Yes, we can provide samples , but we don't pay the freight.
Q: What is your minimum order quantity?
A: In fact, there is no minimum order quantity for our products. But usually we recommend quantities based on acceptable prices.
Related Products
