Low Expansion Alloy
High Precision 4J29 Alloy Wire For Fe-Ni-Co Wire Kovar Type Sealing Alloy
Product Overview: 4J29 alloy wire, also known as a Fe-Ni-Co sealing alloy or Kovar-type wire, is widely used in applications requiring glass-to-metal hermetic sealing. It contains approximately 29% nickel and 17% cobalt, which gives it a controlled thermal expansion closely matched with borosilicate glass. This makes it ideal for use in electronic tubes, vacuum relays, infrared sensors, and aerospace-grade components. Material Composition: Nickel (Ni): ~29% Cobalt (Co): ~17%
Feni36 Precision Alloy 4j36 Ferro Nickel Alloy Invar 36 Wire Price Per Kg
High Quality Feni36 Precision Alloy 4j36 Ferro Nickel Alloy Invar 36 Wire Price Per Kg Product Description Product Overview – K93600 / K93601 / 4J36 Alloy K93600, K93601, and 4J36 are low-expansion Nickel-Iron alloys, typically containing around 36% Nickel and the rest Iron. They are known for their low coefficient of thermal expansion (CTE), making them ideal for precision applications where dimensional stability across temperature variations is critical. These alloys are