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List of Alloys & profiles

List of Alloys & profiles

Alloy Wire International

Datasheet: Nilo® 52

Nilo® 52

Nilo® 52 was designed for use with a variety of soft glasses. It is known for its almost constant coefficient of thermal expansion up to approx. 565°C (1050°F). Nilo® 52’s low thermal expansion properties make it suitable for electronic applications, notably within the telecommunications industry.

Nilo® 52 is also known as Invar 52, Pernifer 50, and Glass Sealing 52

Available in all profile options

Nilo® 52 - Alloy Wire International 1

Key Features

Nilo® 52 offers the following key features:

Designed for use with a variety of soft glasses.
Almost constant coefficient of thermal expansion up to approx. 565°C (1050°F).

Typical Applications

Nilo® 52 is known to be suitable for the following applications:

Various glass to metal sealing applications with soft glass and ceramics.


Designations

W.NR 2.4478
UNS N14052
AWS 093

Specifications

ASTM F30

Chemical Composition

The chemical composition of Nilo® 52 is indicated in the table below:

ElementMin %Max %
Ni50.50 nominal
Febal
Mn0.60
Si0.30
C0.05
Cr0.25
P0.025
S0.03
Al0.10

Alloy Details

Nilo® 52 density, melting point, inflection point, thermal conductivity, and coefficient of expansion is indicated in the table below:

DensityMelting PointInflection PointThermal ConductivityCoefficient of Expansion
8.3 g/cm³1450 °C500 °C17 W/m• °C
10.3 µm/m °C (20 – 100 °C)
0.300 lb/in³2640 °F930 °F118 btu•in/ft2•h °F5.7 x 10-6 in/in °F (70 – 212 °F)

Heat treatment of finished parts

The Nilo® alloys are usually supplied and used in the annealed condition (residual cold work distorts the coefficients of thermal expansion). Annealing times may vary due to section thickness.

The typical heat treatment of Nilo® 52:

TypeTemperatureTimeCooling
Anneal850 – 1000 °C (1560 – 1830 °F)0.5 HrAir or water

Properties

The typical mechanical properties of Nilo® 52:

Annealed
Approx. tensile strength<600 N/mm²<87 ksi
Approx. operating temperatureup to +450 °Cup to +840 °F
Hard Drawn
Approx. tensile strength700 – 900 N/mm²102 – 131 ksi
Approx. operating temperatureup to +450 °Cup to +840 °F

The above tensile strength ranges are typical. If you require different please ask.

*Trade name of Special Metals Group of Companies