FE8453 Invar 42 Bar Annealed

Invar 42 Bar Annealed Description

Invar 42 Bar Annealed is a specialised nickel-iron alloy renowned for its remarkably low coefficient of thermal expansion. Designed to maintain superior dimensional stability over a wide temperature range, it is an excellent choice for applications where precise tolerances and reliable performance are critical. This includes semiconductor parts, optical devices, and telecommunications components. The annealed condition further enhances its mechanical properties, ensuring optimal ductility and workability while maintaining its hallmark thermal characteristics.

Manufactured under strict quality controls, our Invar 42 Bar Annealed meets rigorous internal standards to deliver consistent performance and long-term reliability. Each batch is meticulously tested for uniformity in composition and microstructure, ensuring that it meets and exceeds performance expectations. Customised dimensions are available to fit your specific project requirements and help you achieve precise, high-quality results.

Invar 42 Bar Annealed Applications

Invar 42 Bar Annealed is valued for its remarkably low thermal expansion and mechanical stability, making it essential in applications where dimensional accuracy is critical. Its unique combination of iron and nickel allows it to withstand extreme temperatures and maintain precision. Below are some notable categories where Invar 42 Bar Annealed is used.

1. Precision Instrumentation

·         Laser System Components: Minimising expansion for stable alignment.

·         Dimensional Gauges: Supporting consistently reliable measurements.

2. Electronics and Telecommunications

·         CRT Shadow Masks: Maintaining structural integrity under thermal stress.

·         Sealed Microwave Cavities: Ensuring stable frequencies in variable temperatures.

3. Aerospace 

·         Satellite Frames: Preserving dimensional stability in orbit.

·         Infrared Optical Mounts: Allowing precise focus for thermal imaging systems.

Invar 42 Bar Annealed Packaging

Invar 42 Bar Annealed is carefully packaged with robust protective materials to ensure secure transport. Vacuum packaging is used to reduce humidity exposure, effectively mitigating oxidation. Additionally, anti-corrosion solutions and rust inhibitors are applied to extend shelf life and maintain product integrity. We provide customised packing solutions, including unique labelling, bar lengths, and specialised crates, aligning with client requirements while maximising protection.

Packaging: Vacuum sealed, Wooden Box, or Customised.

Invar 42 Bar Annealed FAQs

Q1: What are the key material properties of Invar 42 Bar Annealed?

A1: Invar 42 Bar Annealed is known for its controlled coefficient of thermal expansion, which is close to that of certain glasses, making it ideal for hybrid metal-glass applications. Typically composed of 42% nickel and 58% iron, it exhibits high dimensional stability, good machinability, and consistent thermal properties across a broad temperature range. With a density near 8.1 g/cm³, it demonstrates stable mechanical characteristics in critical engineering applications.

Q2: How should Invar 42 Bar Annealed be processed or fabricated?

A2: Invar 42 Bar Annealed can be machined using conventional methods, but moderate speeds and feed rates are recommended to prevent excessive work hardening or tool wear. Brazing and welding are possible with expert control, ensuring minimal oxidation or distortion. Forming can be performed in the annealed condition, although allowances should be made for its moderate yield strength. Post-fabrication heat treatments further improve dimensional stability for precision assemblies.

Q3: Which quality standards and certifications apply to Invar 42 Bar Annealed?

A3: Invar 42 Bar Annealed often adheres to standards such as ASTM F1684 for controlled expansion alloys and may also meet AMS specifications for aerospace applications. Certified suppliers must maintain rigorous quality management systems, often conforming to ISO 9001 or AS9100. Material certifications verify composition, mechanical properties, and thermal characteristics, ensuring traceability and consistent performance across batches. Adherence to these standards guarantees dependable outcomes in specialised and critical use cases.

Related Information

1. Material Properties and Advantages

A well-known characteristic of Invar 42 Bar Annealed is its exceptionally low coefficient of thermal expansion, which ensures minimal dimensional changes even under fluctuating temperatures. This grade (Invar 42) is differentiated by its precise composition of iron and nickel, providing outstanding dimensional stability essential for critical engineering tasks where accuracy is paramount.

Beyond its low expansion properties, Invar 42 Bar Annealed exhibits good strength and ductility, allowing for easy machining and forming processes. These bars are available in customised dimensions, enabling manufacturers to choose optimal measurements for specialised applications without compromising performance or material integrity.

2. Applications in Advanced Industries

Catering to the requirements of aerospace components, scientific instrumentation, and high-tech electronics, Invar 42 Bar Annealed is frequently selected for its reliability in environments where dimensional consistency is non-negotiable. Its stable performance under varying temperatures makes it a prime candidate for satellite panel frameworks, precision measuring devices, and tools used in semiconductor production.

Designed to excel in research facilities, this grade (Invar 42) delivers consistent results in applications requiring rigorous thermal management and micro-level accuracy. Whether furnishing custom prototypes or mass-produced systems, the availability of bars in customised dimensions helps engineers integrate Invar 42 into a wide array of advanced industry projects.