Precision is non-negotiable in industries such as aerospace, electronics, and optical manufacturing, where even the smallest dimensional changes can lead to catastrophic failures. Invar 36, an iron-nickel alloy certified to ASTM F1684, has revolutionized precision engineering with its ultra-low coefficient of thermal expansion (CTE), making it the material of choice for applications requiring exceptional dimensional stability across a wide temperature range.
Composed of 36% nickel and 64% iron, Invar 36 exhibits a near-zero CTE between -200°C and 200°C, a property that sets it apart from conventional metals. Unlike steel or aluminum, which expand and contract significantly with temperature fluctuations, Invar 36 maintains its shape and size, ensuring the accuracy of critical components over time. This makes it ideal for manufacturing precision instruments such as optical lenses, laser components, and aerospace structural parts that demand tight tolerances.
Invar 36’s unique properties also make it indispensable in the electronics industry. As electronic devices become smaller and more powerful, the need for materials that can withstand thermal cycling without warping has grown. Invar 36 is used in the production of semiconductor wafers, electronic packaging, and precision connectors, ensuring reliable performance even in extreme temperature environments. Additionally, its excellent weldability and machinability allow for easy fabrication into complex shapes, further expanding its applications.
At Changzhou Brilliance Special Steel Co., Ltd., we supply Invar 36 in various forms, including sheet, plate, rod, and tube, all manufactured to meet the strict requirements of ASTM F1684. Our commitment to quality ensures that each product delivers consistent dimensional stability and performance, helping our customers achieve the highest levels of precision in their designs. Whether you’re working on a cutting-edge aerospace project or a high-tech electronic device, Invar 36 is the alloy that delivers reliability and precision when it matters most.
Post time: Dec-01-2025