What is an Invar Plate?
Invar plate is a high-performance material with special properties-the most significant of which is an extremely low coefficient of thermal expansion (CTE). That is to say, as a nickel-iron alloy, Invar expands very little and contracts even less when exposed to temperature changes, making it so ideal for dimensionally stable applications under varying thermal conditions. The name "Invar" originates from the word "invariable," as the alloy does not lose its shape or size, even when it is heated up to temperatures that fluctuate periodically. Since Invar contains almost 36% of nickel and 64% of iron, it contains greater thermal stability than most metals and alloys, which makes it more valuable in industries that require a reasonable degree of accuracy. Properties of Invar Plate Minimal Thermal Expansion: The most important characteristic of Invar is its very low coefficient of thermal expansion. It features nearly zero CTE in the range of -100°C to 200°C, so it has ...