General Description

Alloy 52 is a nickel-iron controlled expansion alloy containing 51% nickel, it is used for glass to metal seals for electronic tubes, compact fluorescent lamps, and specialty hermetic devices.

Chemical Composition

Grade C% P% S% Mn% Si% Ni% Fe%
Alloy 52 Max 0.05 Max 0.02 Max 0.02 Max 0.80 Max 0.30 51.5-52.5 Bal.

Designations

UNS N14052

Specifications

ASTM F30

Wire, Strip, Bar, Thin wall tube are available

Physical Properties

Density: 8.25 g/cm3

Melting Point: 1430 °C

Mechanical Properties

 

σb/MPa

σP0.2/MPa

δ/%

Annealed 550 276 35

Linear Coefficient of Thermal Expansion ā,10-6/℃

Grade 20-100℃ 20-200℃ 20-300℃ 20-350℃ 20-400℃ 20-450℃ 20-500℃ 20-600℃
Alloy 52 10.3 10.4 10.2 10.3 10.3 10.3 10.3 10.8

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