Precision Kovar Alloy Strip/Rod 4J29 (UNS K94610) – High-Performance Material for Critical Applications

Ultra-Low Thermal Expansion
– Ideal for hermetic seals in electronics, aerospace, and telecom industries due to matched expansion with borosilicate glass.
Nickel-Iron-Cobalt Precision Alloy
– Exceptional stability under extreme temperatures (-200°C to +450°C), ensuring reliability in sensors, relays, and vacuum tubes.
Laser-Cut Ready & Machinable
– Smooth surface finish (Ra <0.8μm) for precision welding/brazing, perfect for semiconductor packaging and medical devices.
Globally Sourced, Bulk Discounts
– Wholesale pricing for industrial buyers, with guaranteed consistency in thickness (±0.01mm) and ASTM F15 compliance.
Corrosion-Resistant & Non-Magnetic
– Optimized for RF shielding, microwave tubes, and satellite components where durability matters.
Custom Sizes Available
– Rods (1mm–50mm dia) or strips (0.1mm–5mm thick), shipped with certified material test reports. *Note: MOQ applies. Inquire for technical datasheets.*