Steel Alloys specializes in providing high-quality Welded Stainless Steel Tubes and Pipes, including alloys like Invar. Invar, a controlled expansion nickel-iron alloy, is pivotal in various applications. It’s renowned for its extremely low thermal expansion, making it indispensable in industries ranging from household appliances like electric irons and toasters to complex uses in office equipment such as computer terminals and TV screens.

Invar’s exceptional properties extend its utility to advanced electronic components, mobile phone network filters, and even as tank membranes for LNG transport ships. Its composition of 36% nickel and iron ensures superior ductility, weldability, and machinability comparable to austenitic stainless steel, without susceptibility to stress corrosion cracking. The coefficient of thermal expansion for Invar remains impressively low across a broad temperature range, from room temperature to approximately 230°C, making it a preferred choice in demanding industrial applications.