Low Expansion Alloy

High Precision 4J33 Sealing Wire Controlled Expansion Alloy For Hermetic Packaging Product Overview 4J33 alloy wire is a precision low-expansion Fe-Ni-Co alloy material specifically designed for hermetic glass-to-metal sealing applications. With approximately 33% nickel and a small amount of cobalt, this alloy offers a thermal expansion coefficient closely matched to hard glass and ceramics. It is widely used in the manufacture of vacuum tubes, infrared sensors, electronic

4J36 Invar Wire for Thermostatic Applications | Fe-Ni Alloy Wire with Controlled Thermal Expansion Product Overview 4J36 alloy wire, commonly known as Invar 36 wire, is a precision Fe-Ni alloy with an extremely low coefficient of thermal expansion (CTE). It contains approximately 36% nickel and is widely used in applications requiring dimensional stability across temperature changes, such as precision instruments, aerospace components, and electronic devices. Material

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%

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