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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. 565oC (1050oF).
Nilo® 52 is also known as Invar 52, Pernifer 50, and Glass Sealing 52.
|Chemical Composition||Specifications||Designations||Key Features||Typical Applications|
|ASTM F30||W.NR 2.4478
|Designed for use with a variety of soft glasses.
Almost constant coefficient of thermal expansion up to approx. 565°C (1050°F).
|Various glass to metal sealing applications with soft glass and ceramics.|
|Density||8.3 g/cm³||0.300 lb/in³|
|Thermal Conductivity||17 W/m•°C||118 btu•in/ft2•h°F|
|Coefficient of Expansion||10.3 µm/m °C (20 – 100°C)||5.7 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.
|Anneal||850 – 1000||1560 – 1830||0.5||Air or water|
|Condition||Approx. tensile strength||Approx. operating temperature|
|Annealed||450 – 550||65 – 80||up to +450||up to +840|
|Hard Drawn||700 – 900||102 – 131||up to +450||up to +840|
The above tensile strength ranges are typical. If you require different please ask.
*Trade name of Special Metals Group of Companies