Precision 4J32 Super-Invar Coil, please note that the above table provides a range of standard thicknesses, widths, and lengths for Precision Alloy.
- Dimensions:
- Thickness: 0.5mm – 50mm
- Width: >600mm
- Certification: ISO, SGS, BV and so on.
- *Customized size needs to be confirmed with us
- Grades: 1J22 soft magnetic alloy, 1J50 soft magnetic alloy, 1J79 Permalloy, 1J85 Permalloy, 4J32(Super-Invar), 4J36, 4J29 Kovar alloy, 4J42Kovar alloy, Cobalt-based elastic alloy 3J21.
Precision 4J32 Coil Size And Specifications
Precision 4J32 Super Invar Coil Alloy, also known as Super-Invar alloy, is a nickel-iron-cobalt-based precision alloy renowned for its exceptional low thermal expansion coefficient and superior mechanical properties. This alloy is primarily utilized in applications requiring high dimensional accuracy and stability within a range of ambient temperature changes. Its unique combination of properties makes it ideal for various industries, including aerospace, electronics, and precision instrument manufacturing.Huaxiao Metal Manufacturer is the professional and experienced in processing alloy in China.
Huaxiao Metal Supplier provides all sizes of Precision alloy coil for sale. Customized specifications are available upon request. Additionally, the exact chemical composition and mechanical properties may vary slightly within the ranges listed, depending on the specific alloy formulation and production process. Custom sizes are also available upon request. Welcome to inquire, and learn about more details about the alloy coil.
| Specification | Value |
|---|---|
| Density | 8.10 g/cm³ |
| Melting Temperature Range | 1430 – 1450 °C |
| Thermal Conductivity | 13.9 W/(m·°C) |
| Electrical Resistivity | 0.77 μΩ·m |
| Curie Point (Tc) | 220 °C |
| Residual Magnetic Induction (Br) | 0.58 T (at 4000 A/m) |
| Coercive Force (Hc) | 75 A/m |
Chemical Composition of Precision 4J32 Super Invar Coil
The chemical composition of 4J32 Super Invar alloy includes:
| Element | Range (wt%) |
|---|---|
| Nickel (Ni) | 31.5 – 33.0 |
| Iron (Fe) | Balance |
| Cobalt (Co) | 3.2 – 4.2 |
| Carbon (C) | ≤ 0.05 |
| Silicon (Si) | ≤ 0.20 (or 0.20 – 0.30 depending on production process) |
| Manganese (Mn) | 0.2 – 0.6 |
| Phosphorus (P) | ≤ 0.020 |
| Sulfur (S) | ≤ 0.020 |
| Copper (Cu) | 0.4 – 0.8 |
| Chromium (Cr) | 0.15 – 0.30 (trace amounts in some formulations) |
Physical Properties of Precision 4J32 Coil
| Property | Value |
|---|---|
| Density (g/cm³) | 8.1 |
| Thermal Conductivity (W/m·K) | 10.5 |
| Electrical Resistivity (μΩ·m) | 0.85 |
| Magnetic Permeability (μ) | ~100 (weakly magnetic) |
Comparison with 4J36:
Similar density but lower CTE due to optimized Co content.
Lower thermal conductivity than metals like copper, but this is irrelevant in applications prioritizing dimensional stability.
4J32 Super Invar alloy exhibits a very low coefficient of thermal expansion, typically less than 1.0×10^-6/°C within the temperature range of 20°C to 100°C. This property ensures dimensional stability even under temperature fluctuations. The alloy’s density of 8.10 g/cm³ and thermal conductivity of 13.9 W/(m·°C) contribute to its effectiveness in applications requiring thermal stability.
Mechanical Properties of Precision 4J32 Super Invar Coil
| Property | 4J32 (Annealed) | 4J32 (Cold Worked) |
|---|---|---|
| Tensile Strength (MPa) | 450–550 | 600–750 |
| Yield Strength (MPa) | 250–350 | 500–650 |
| Elongation (%) | 30–40 | 5–15 |
| Hardness (HV) | 130–160 | 180–220 |
Analysis:
Cold working increases strength but reduces ductility—important for forming processes.
Comparable to 4J36 but with better thermal stability.
Tips for Procurement and Cost-Effectiveness
- Supplier Selection: Choose a reputable supplier with a history of providing high-quality alloys.
- Material Certification: Ensure the alloy meets relevant standards and specifications, such as GB/T 37797-2019 and GB/T 15018-1994.
- Quantity Negotiation: Purchase in bulk to negotiate lower prices and reduce costs.
- Timely Delivery: Coordinate with the supplier to ensure timely delivery to minimize production delays.
Please note that the above specifications are typical and may vary slightly based on the manufacturer, production batch, and specific application requirements. For precise specifications and availability, it is recommended to consult with a supplier or manufacturer of Precision alloy coils. Huaxiao Metal Manufacturer also provides other shapes of Precision products, such as bar, sheet&plate, strip, tube&pipe, wire&mesh. The price is affordable and suitable.
What are the 4J32 Super Invar Benefits?
These benefits make them a suitable choice for a wide range of demanding applications across different industries. Welcome to Huaxiao Metal Manufacturer to request the price, trust you can be satisfied in the alloy products and buy our products in quickly.
Precision 4J32 Coil Applications and Uses
Huaxiao Metal Supplier provides all kinds of precision alloy coil in the world. Welcome to inquiry and ask for the price.
- Aerospace: Used in precision sensors, satellite support structures, and optical device frameworks due to its low thermal expansion coefficient.
- Electronics: Suitable for high-reliability components in complex circuits and connectors.
- Precision Instruments: Ideal for high-precision measurement equipment, and other devices requiring dimensional stability.
| Industry | Use Case | Why 4J32? |
|---|---|---|
| Aerospace | Satellite structures, sensor mounts | Zero thermal distortion |
| Optics | Telescope frames, laser housings | Prevents misalignment |
| Semiconductor | Wafer stages, EUV lithography | Nanometer-level stability |
| Scientific Instruments | Atomic clocks, interferometers | Long-term reliability |
Alloy Procurement and Cost-Effectiveness
When procuring 4J32 Super Invar alloy, consider the following factors for cost-effectiveness:
- Market Pricing: Monitor market trends to purchase during periods of lower prices.
- Material Utilization: Optimize designs to maximize material utilization and minimize waste.
- Long-Term Contracts: Establish long-term contracts with suppliers for consistent pricing and quality.
Precision 4J32 Permalloy Coil Advantages
- Low Thermal Expansion Coefficient: Ideal for applications where dimensional stability is crucial, such as precision instruments and aerospace components.
- High Corrosion Resistance: Suitable for use in atmospheric, freshwater, and seawater environments.
- Good Mechanical Properties: Offers a balance of strength, ductility, and toughness.
- Excellent Formability: Easily processed through hot and cold rolling, extrusion, and other forming methods.
- Ultra-low CTE – Minimizes dimensional changes in temperature-sensitive applications.
High Precision – Essential for optical mounts, laser systems, and aerospace components.
Corrosion Resistance – Better than standard steel in humid environments.
Machinability & Weldability – Can be processed with standard techniques.
The Precision 4J32 Super Invar Coil Alloy is a nickel-iron-cobalt alloy renowned for its ultra-low thermal expansion coefficient (CTE) at room and slightly elevated temperatures. This alloy is an enhanced version of traditional Invar (4J36), offering superior dimensional stability in precision applications where minimal thermal expansion is critical.
Key Characteristics:
Extremely low CTE (0.6–1.0 × 10⁻⁶/°C) within -60°C to 100°C
Excellent mechanical stability
Superior corrosion resistance compared to standard Invar
Ideal for aerospace, optical systems, and scientific instruments
Precision 4J32 Super Invar Coil is a specialized alloy renowned for its exceptional thermal expansion properties. This alloy, composed primarily of iron, nickel, and cobalt, exhibits extremely low coefficients of thermal expansion, making it an ideal material for applications requiring high dimensional stability over a range of temperatures.
Advantages:
- It maintains minimal size changes with temperature fluctuations, ensuring precision in devices.
- Enhanced high-temperature stability and corrosion resistance due to its nickel and cobalt content.
- Good machinability, allowing it to be processed into various forms such as coils.
In summary, Precision 4J32 Super Invar Coil offers unparalleled advantages in terms of dimensional stability, machinability, and corrosion resistance, making it a highly valued material across various high-precision fields.
4J32 Permalloy Factory
Huaxiao Metal Supplier provides professional services and reasonable prices, offering customers the best quality products. The Precision Alloy Coil Alloy Factory is a specialized manufacturing facility dedicated to the production of high-quality precision alloy coils. This factory combines advanced technology, rigorous quality control, and experienced personnel to ensure the production of precision alloy coils that meet the highest standards.The factory is equipped with state-of-the-art production equipment and machinery, capable of producing precision alloy coils with precise dimensions and consistent quality. Welcome to require, and ask to the price.
Manufacturing and Cost
The manufacturing process of 4J32 Super Invar alloy involves melting, casting, and subsequent thermal treatments to achieve the desired microstructure and properties. Costs are influenced by raw material prices, processing fees, and energy consumption. Efficient production processes and material optimization can help reduce manufacturing costs.
Pricing Insights
Pricing for 4J32 Super Invar alloy varies based on market conditions, raw material availability, and demand. It’s crucial to stay informed about market trends and negotiate effectively with suppliers to secure competitive pricing.
In Conclusion
The Precision 4J32 Super Invar Coil Alloy is the premium choice for applications requiring near-zero thermal expansion. While more expensive than 4J36, its enhanced stability justifies the cost in high-precision aerospace, optical, and scientific applications.
For cost-sensitive projects, 4J36 remains viable, but 4J32 is unmatched where thermal drift is unacceptable. Proper procurement strategy (bulk orders, certified suppliers) ensures optimal cost-performance balance.
Final Recommendation:
✔ Best for: Ultra-high-precision systems where CTE <1×10⁻⁶/°C is mandatory.
✔ Alternative: 4J36 if slight CTE variation is tolerable.
✔ Procurement Tip: Secure long-term contracts to mitigate Ni/Co price volatility.
This analysis provides data-driven insights for engineers and procurement specialists evaluating 4J32 Super Invar against alternatives.
Precision 4J32 Super Invar Coil Alloy is a versatile material with unique properties that make it indispensable in various industries. Its low thermal expansion coefficient, high corrosion resistance, and good mechanical properties combine to provide a robust solution for demanding applications. By understanding its specifications, chemical composition, physical and mechanical properties, and procurement tips, you can effectively leverage this alloy to meet your project requirements while optimizing costs. As technology progresses, 4J32 Super Invar alloy will continue to play a pivotal role in advancing industrial and technological developments.