Glass Sealing Alloy Tube (Fe54/Ni29/Co17)

Glass Sealing Alloy Tube (Fe54/Ni29/Co17) is a high-integrity tubular form designed for use in vacuum-compatible and hermetically sealed systems where glass-to-metal transitions must be both thermally and mechanically robust. This Fe-Ni-Co alloy exhibits controlled thermal expansion matching that of technical glasses, allowing for stress-free bonding during repeated heating cycles. The tube form serves critical functions in vacuum heat collectors, pressure-resistant enclosures, and connector housings in advanced optical and aerospace assemblies. Applications span vacuum insulation systems, sealed power feedthroughs, and thermal collector tubes in renewable energy setups. The alloy’s cylindrical geometry is particularly advantageous in high-temperature collector designs, enabling effective glass-metal junctions under dynamic loading conditions. This material is central to enabling durable, leak-free enclosures across research domains such as solar thermal power, high-vacuum instrumentation, and aerospace-grade sensor housings. Glass Sealing Alloy Tube (Fe54/Ni29/Co17) remains a core enabler in the pursuit of long-life, high-reliability sealed systems.