A Nickel-Iron-Cobalt, controlled expansion alloy containing nominally 29% Nickel and 17% Cobalt. Its coefficient of expansion (which decreases with rising temperature to the inflection point), matches the expansion rate of borosilicate glasses and alumina ceramics. Nilo® K is also known as Kovar, Dilver, and Pernifer 2918.
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
A Nickel-Iron, controlled expansion alloy containing 48% Nickel. Its coefficient of thermal expansion was designed to match that of soft lead and soda-lime glasses. This alloy also has a high inflection point. Nilo® 48 is often used in industrial thermostat rods up to 450°C (840°F) and for glass-to-metal seals in a number of applications, which may include radio valves and electric lamps. Nilo® 48 is also known as Invar 48 and Magnifer 50.
A Nickel-Iron, low expansion alloy containing 42% Nickel. It has a low and nominally constant coefficient of thermal expansion from room temperature to about 300°C (570°F). Nilo® 42 is also known as Invar 42, Pernifer 40, Dilaton 42, and Glass Sealing 42.
A Nickel-Iron, low expansion alloy containing 36% Nickel. It maintains near constant dimensions over the range of normal atmospheric temperatures and has a low coefficient of expansion from cryogenic temperatures to about 500°C (930°F). Nilo 36 also retains good strength and toughness at cryogenic temperatures. This makes it useful for applications such as cryogenic engineering and laser components. Nilo® 36 is also known as Invar / Invar 36, Supra 36, and Pernifer 36.
