Invar 36 is a nickel-iron alloy known for its unique thermal expansion properties. It has a low coefficient of thermal expansion (CTE), which can withstand drastic temperature changes without expanding or contracting significantly, making it ideal for use in precision instruments and scientific equipment. Invar 36 wire is widely used in various industries for its excellent dimensional stability, high strength, and magnetic properties. In this blog, we’ll detail the properties, uses, and composition of Invar 36 wire.
What is Invar 36 Wire?
Invar 36 wire is a strong, corrosion-resistant alloy containing approximately 36% nickel and 64% iron. This unique combination makes Invar 36 a highly efficient material for applications that require good dimensional stability over wide temperature ranges. It is used in various industries such as electronics, automotive components, medical prosthetics and aerospace engineering due to its excellent properties of low thermal expansion and high strength at elevated temperatures. It also provides excellent electrical conductivity and magnetic permeability, making it ideal for various purposes ranging from wiring to power transfer systems.
Properties of Invar 36 Wire
Invar 36 wire is known for its low CTE, which makes it resistant to thermal expansion and contraction. It has a CTE of 1.1 x 10^-6/°C at 20°C, much lower than other materials like steel and aluminium. This property makes Invar 36 ideal for precision instruments and scientific equipment requiring high dimensional stability. Invar 36 wire is also highly resistant to corrosion and oxidation, making it suitable for harsh environments. Its magnetic properties make it useful for applications that require magnetic shielding.
Composition of Invar 36 Wire
Invar 36 wire is a nickel-iron alloy comprising 36% nickel and 64% iron. It also contains trace amounts of other elements like carbon, silicon, sulfur, phosphorous, and manganese. The unique composition of Invar 36 gives it its low CTE and excellent thermal stability.
Uses of Invar 36 Wire
Invar 36 wire is applied in various industries, including aerospace, telecommunications, precision instruments, scientific equipment, and culinary arts. It is used to manufacture gyroscopes, cryogenic tanks, instrumentation and control systems, clocks, watches, and various other precision devices. Invar 36 wire is also used in the culinary arts industry for its unique thermal properties, as it helps to maintain the shape of pastry moulds and cooking utensils.
Benefits of Invar 36 Wire
Invar 36 wire is known for its exceptional dimensional stability, high strength, and magnetic properties. It has low CTE and high elasticity and can withstand drastic temperature changes without expanding or contracting significantly. These properties make it ideal for precision instruments and scientific equipment requiring high dimensional stability. Invar 36 wire is also highly resistant to corrosion and oxidation, making it ideal for harsh environments.
Conclusion
Invar 36 wire is a nickel-iron alloy known for its unique thermal expansion properties. Its low CTE makes it resistant to thermal expansion and contraction, making it ideal for precision instruments and scientific equipment use. Its high strength, excellent dimensional stability, magnetic properties, and resistance to corrosion and oxidation make it an ideal choice for various industries. Invar 36 wire has a broad range of applications, making it a versatile and useful material for modern technology. Its exceptional properties make it a favourite for manufacturing processes that require exceptional precision, making it a vital component of many mechanisms worldwide.