FE8427 Invar 36 Rod Annealed

Invar 36 Rod Annealed Description

Our Invar 36 Rod Annealed is meticulously crafted from an iron-nickel alloy renowned for its outstanding dimensional stability and a near-zero coefficient of thermal expansion. This unique property ensures minimal variance in size when subjected to extreme temperature fluctuations, making it an ideal choice for precision components. Each rod can be customised to fit your exact dimensional requirements, delivering consistent performance and reliable results across various environments.

Commonly used in aerospace, energy, and instrumentation applications, Invar 36 excels in situations where tight tolerance control is paramount. Our rods undergo rigorous quality checks to guarantee uniform grain structure, optimal machinability, and high-quality annealing. By adhering to stringent industry standards—from manufacturing to testing—we provide a product that upholds precise tolerances and exceptional stability, ensuring the integrity and reliability of your most critical projects.

Invar 36 Rod Annealed Applications

Invar 36 Rod Annealed is known for its exceptionally low coefficient of thermal expansion, making it indispensable in a variety of industries that require dimensional stability and reliability. This iron-nickel alloy remains stable over a wide temperature range, enabling precise control in measurement instruments, electronic devices, and aerospace components. Below are several common applications where Invar 36 proves invaluable thanks to its unique physical characteristics.

1. Precision Measurement and Metrology

·         Metrology Gauges: Used for ultra-precise instruments that maintain accuracy when exposed to temperature fluctuations

·         Laser Components: Provide stable alignment in optical systems due to minimal expansion

2. Aerospace and Defence

·         Satellite Instruments: Ensure dimensional stability in sensitive guidance and navigation equipment

·         Missile Guidance Systems: Maintain accurate component integrity where atmospheric or thermal variations occur

3. Electronics and Cryogenic Systems

·         Semiconductor Enclosures: Offer controlled dimensional tolerances for high-end chip manufacturing

·         Cryogenic Vessels: Withstand extremely low temperatures while retaining shape and strength

Invar 36 Rod Annealed Packaging

Invar 36 Rod Annealed rods are wrapped in protective plastic sleeves, then vacuum-sealed to block moisture and contaminants. Additional anti-corrosive coatings and rust-inhibiting papers are inserted to maintain surface quality. Tailored crate or box packaging prevents damage during transit. Customisation options are available to accommodate specific lengths, bundling, and labelling requirements, ensuring a secure and efficient delivery.

Packaging: Vacuum sealed, Wooden Box, or Customised.

Invar 36 Rod Annealed FAQs

Q1: What are the key material properties of Invar 36 Rod Annealed?

A1: Invar 36 Rod Annealed is renowned for its remarkably low coefficient of thermal expansion, typically less than 2 x 10⁻⁶/°C between room temperature and 200°C. This stability helps minimise dimensional changes in precision-driven applications. The iron-nickel composition imparts consistent mechanical strength and ductility. Additionally, it provides excellent thermal conductivity and corrosion resistance, making it suitable for critical aerospace, electronic, and laboratory systems.

Q2: How can this Invar 36 Rod Annealed product be processed or fabricated?

A2: Invar 36 Rod Annealed can be machined using standard methods, though slower speeds and moderate feeds help avoid work hardening. Cold or hot forming is viable, with preheating often needed for hot forming to optimise ductility. Welding requires caution, typically using low-expansion filler metals under inert atmospheres. Post-fabrication annealing is recommended to regain dimensional stability and maintain the alloy’s distinct low-expansion behaviour.

Q3: Which quality standards and certifications apply to Invar 36 Rod Annealed?

A3: Invar 36 Rod Annealed is often produced and supplied to meet rigorous international specifications, including ASTM F1684 or equivalent standards. Additionally, many mills hold ISO 9001 certification to ensure consistent quality management throughout manufacturing. Mechanical and chemical properties are typically verified via mill test reports, meeting strict industry requirements for dimensional accuracy, composition, and performance. Traceability documentation is also standard practice.

Related Information

1. Material Properties and Advantages

Invar 36 Rod Annealed is specially noted for its extraordinarily low coefficient of thermal expansion, making it a reliable choice for applications that demand precision under shifting temperatures. Its nickel-iron composition ensures robust dimensional stability while maintaining a high level of strength, even when fabricated into customised dimensions for specialised projects. This grade is meticulously processed through controlled annealing methods, preserving the alloy’s inherent characteristics and enhancing its machinability for complex component manufacturing.

While other alloys might exhibit expansion or warping under heat stress, Invar 36 Rod Annealed retains a consistent form, reducing the need for frequent recalibrations or adjustments during assembly or maintenance. Engineers value its uniform structural integrity, which is crucial for parts like sensitive measuring instruments and aerospace assemblies. With a stable microstructure, this rod delivers consistent performance in demanding environments, thus ensuring efficiency and reliability across advanced industrial operations.

2. Applications in Advanced Industries

Because of its remarkable stability, Invar 36 Rod Annealed has become a go-to material for aerospace, optical, and nuclear research sectors where dimensional accuracy is non-negotiable. Used as customised rods in satellites, measurement devices, and high-resolution optical assemblies, it meets strict engineering demands that call for minimal thermal expansion over a range of operating conditions. Its capacity to maintain precision bonded interfaces also makes it a valuable asset in laser systems used in scientific exploration and defence technologies.

Transitioning seamlessly into electronics and telecommunications, this special alloy continues to prove indispensable in manufacturing sensitive components that must perform reliably in controlled environments. By retaining its engineered tolerances under fluctuating temperatures, Invar 36 Rod Annealed ensures device longevity and optimal function in advanced circuit boards and intricate sensor frameworks. This dependability enables industries to push the boundaries of innovation while maintaining stringent design constraints on both size and thermal performance.