Invar 52 - UNS K94700, ASTM A553, DIN 1.3921, EN AW-52

Invar 52 is a nickel-iron alloy with 52% nickel content, designed for applications that require excellent thermal expansion control and compatibility with glass and ceramics. This alloy is widely used in electronic and optical applications where thermal expansion must be matched to other materials.
Its exceptional dimensional stability and thermal properties make it an ideal choice for precision engineering, especially in sealing and bonding applications.
Invar 52 Plates & Sheets
Invar 52 plates and sheets are commonly used in precision assemblies requiring minimal thermal expansion and compatibility with other materials.
Invar 52 Round Bars
Invar 52 round bars are used in precision engineering applications, including the manufacture of hermetic seals and electronic components.
Invar 52 Flanges
Invar 52 flanges are designed for high-precision applications requiring dimensional stability and thermal expansion compatibility.
Invar 52 Fittings
Invar 52 fittings are employed in systems requiring reliable sealing and bonding capabilities in varying thermal conditions.
Invar 52 Tubes & Pipes
Invar 52 tubes and pipes are used in systems demanding stable thermal properties and precise dimensional control.
Invar 52 Fasteners
Invar 52 fasteners are used in assemblies requiring long-term dimensional stability and resistance to thermal expansion.
Applications of Invar 52
- Electronics: Used in electronic components that require minimal thermal expansion.
- Optical Instruments: Ideal for precision instruments where dimensional stability is critical.
- Hermetic Seals: Used for sealing applications with glass and ceramics.
- Engineering: Applied in high-performance systems requiring precise thermal compatibility.
Chemical Composition of Invar 52
- Nickel (Ni): 51.0% - 53.0%
- Iron (Fe): Balance
- Cobalt (Co): 0.4% max
- Chromium (Cr): 0.25% max
- Manganese (Mn): 0.30% max
- Carbon (C): 0.05% max
- Sulfur (S): 0.01% max
- Phosphorus (P): 0.01% max