UNS K93600 Good Price 36 Invar Rod Iron-Nickel Feni Alloy Wire 4j36

36 Invar is a Nickel-Iron alloy with about 36% Nickel and the remainder being Iron. It is a low-expansion alloy known for its extremely low coefficient of thermal expansion (CTE), making it ideal for use in applications requiring high dimensional stability across temperature changes. Invar 36 maintains its size and shape even under significant temperature variations, making it essential in industries where precision is critical.

This alloy is widely used in the manufacturing of precision instruments, scientific apparatus, aerospace components, and high-performance machinery where temperature-induced expansion could cause inaccuracies or failure.

Key Features:

• Nickel Content: 36%

• Low Thermal Expansion: Approx. 1.2 × 10⁻⁶ /°C (low CTE)

• High Dimensional Stability: Suitable for precise applications where size and shape need to be retained under temperature variations

• Magnetic Properties: Ferromagnetic at room temperature

• Excellent machinability: Can be easily formed, welded, and processed into various shapes and sizes

• Corrosion Resistance: Resistant to corrosion in many environments, though it may require coatings for harsher conditions

• High Strength: Provides strong mechanical properties for high-performance applications

Typical Applications:

Invar 36 is used in fields where thermal stability, precision and resistance to thermal expansion are critical, including in applications such as:

Precision alloys are metal materials with special physical properties (such as magnetic, electrical, thermal and other properties). The vast majority of precision alloys are based on ferrous metals, and only a few are based on non-ferrous metals. Usually include magnetic alloys (see magnetic materials), elastic alloys, expansion alloys, thermal bimetals, electrical alloys, hydrogen storage alloys (see hydrogen storage materials), shape memory alloys, magnetostrictive alloys (see magnetostrictive materials), etc.