
Ni29co18/ Uns K94610 (4J29) Kovar Expansion Alloy Strip. Hermetic Sealing Match: Expansion matches borosilicate glass and alumina ceramics for reliable sealing. High Purity Composition: Contains 29% Nickel, 17% Cobalt, and low carbon for optimal performance. Excellent Machinability: Porosity-free product designed for good machining and deep drawing properties. ISO9001 Certified: Manufacturing process certified under ISO9001 standard for quality assurance. Flexible Ordering: Small orders and samples are accepted with short delivery times. Custom Manufacturing: ODM and OEM services available with professional R&D support. Wide Application Range: Suitable for power tubes, microwave tubes, transistors, and scientific instruments. Multiple Size Options: Available in cold rolled (0.15-4mm) and hot rolled (4-22mm) strip sizes.