Astm F30 Standard Nickel Based Alloys 52 Foil For Specialty Hermetic Devices

Alloy 52 Foil Glass Seal 521 UNS K95050 N14052 ASTM F30 electronic/glass seals

Alloy 52 foil / N14052 Alloy 52 contains 52% nickel and 48% iron and is widely used in the telecommunications industry. It also finds application in a wide variety of electronic applications, especially for glass seals. Also known as: Pernifer 502, NILO 50, Glass Seal 521 UNS K95050 N14052 ASTM F30

Alloy 52 is a ferronickel alloy with nickel content of 50.50%. It is used for glass metal sealing. When the temperature is 565 ° C, the thermal expansion rate of the alloy remains unchanged

Chemical composition:

Carbon: less than 0.01%

Manganese: 0.30%

Silicon: 0.20%

Nickel: 50.50%

Iron: allowance

Physical property:

Specific gravity: 8.30

Density: 0.30 lb / in3

Average specific heat: 0.12btu/lb/ ° f

Average thermal expansion coefficient: 77-842 ° F, annealed, 5.4x10-6in/in/ ° f

Thermal conductivity: 68-212 ° F, 97.00btu-in/hr/ft2 / ° f

Modulus of elasticity (E): 23.0x103ksi

Resistance: @ 70 ° F, 258.0 ohm CIR mil / ft

Temperature coefficient of resistance:

-67-77°F, 19.4X10-4 ohm/ohm/°F

77-221°F, 22.5X10-4 ohm/ohm/°F

Fold back temperature: 1050 ° f

Melting distance: 2600 ° f

Thermal expansion curve - ordinary glass and ceramics

Applications

Glass to metal seals for electronic tubes

Automotive and industrial lamps

Specialty hermetic devices