Our 4J52 Fe-Ni Alloy Wire is a top pick for high-accuracy optical components. With 52% nickel and 48% iron, it offers a low CTE of ~4.9 ppm/°C (20-400°C), ensuring your parts stay dimensionally stable through temperature changes. It’s tough, corrosion-resistant, and easy to machine, making it perfect for precision optical applications. Whether you’re building lens frames or laser systems, our 4J52 wire delivers the accuracy and reliability you need.
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The optical device market is booming, with a projected CAGR of 6.1% through 2032, driven by advancements in laser technology, aerospace optics, and scientific instrumentation. As optical systems get more complex, materials that maintain precision under temperature fluctuations are critical. Aerospace relies on stable alloys for satellite optics, while electronics and medical devices need them for laser and sensor applications. Our 4J52 wire is tailored to these trends, offering the thermal stability and precision required for cutting-edge optical systems.
| Elements | 4J29 | 4J36 | |
| Carbon (C) | Not greater than | 0.03 | 0.05 |
| Sulfur (S) | 0.02 | 0.02 | |
| Phosphorus (P) | 0.02 | 0.02 | |
| Manganese (Mn) | ≤0.50 | 0.20-0.60 | |
| Silicon (Si) | ≤0.30 | ≤0.30 | |
| Nickel (Ni) | 28.5-29.5 | 35.0-37.0 | |
| Chromium (Cr) | - | - | |
| Cobalt (Co) | 16.8-17.8 | - | |
| Iron (Fe) | Rest | Rest | |
| Other Elements |
| Alloy Grade | 20°C-100°C | 20°C-300°C | 20°C-500°C |
| 4J36 Invar Alloy | 1.2×10⁻⁶ /°C | 2.5×10⁻⁶ /°C | - |
| 4J29 Kovar Alloy | 4.6×10⁻⁶ /°C | 5.5×10⁻⁶ /°C | 6.2×10⁻⁶ /°C |
| Alloy Grade | 4J36 Invar Alloy | 4J29 Kovar Alloy |
| Density (g/cm³) | 8.1 | 8.2 |
| Tensile Strength (MPa) | 500-600 | 600-700 |
| Yield Strength (MPa) | 250-350 | 300-400 |
| Hardness (HV) | 150-200 | 200-250 |
| Alloy Grade | 4J36 Invar Alloy | 4J29 Kovar Alloy |
| Electrical Resistivity (10⁻⁶ Ω·cm) | 80 | 50 |
| Thermal Conductivity (W/m·K) | 10-12 | 16-18 |
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Our 4J52 Fe-Ni Alloy Wire is a star performer in optical applications. It’s used in optical mounts and lens frames, ensuring alignment stays perfect despite temperature shifts. Laser systems rely on it for stable components in high-precision setups like medical lasers or industrial cutting tools. In aerospace, it supports satellite optics and navigation systems where accuracy is non-negotiable. You’ll also find it in scientific instruments like spectrometers, where its low CTE keeps measurements spot-on. Wherever precision optics are needed, our 4J52 wire shines.
Comparison Table: 4J52 Fe-Ni vs. 4J50 Nickel Alloy vs. Standard Invar
Parameter | 4J52 Fe-Ni | 4J50 Nickel Alloy | Standard Invar |
|---|---|---|---|
Composition | 52% Ni, 48% Fe | 50% Ni, 50% Fe | 36% Ni, 64% Fe |
CTE (ppm/°C, 20-400°C) | ~4.9 | ~4.8 | ~1.2–1.5 |
Temperature Range | -40°C to 400°C | -40°C to 400°C | -50°C to 230°C |
Curie Temperature | ~425°C | ~420°C | ~279°C |
Yield Strength (MPa) | ~345 | ~340 | ~260–300 |
Tensile Strength (MPa) | ~555 | ~550 | ~450–550 |
Density (g/cm³) | 8.23 | 8.21 | 8.05 |
Applications | Optical mounts, laser systems | Sensors, optical mounts | Clocks, precision instruments |
Corrosion Resistance | Excellent | Excellent | Moderate |
We know the market offers plenty of alloy options, but our 4J52 Fe-Ni Alloy Wire stands out for its quality and precision. Our rigorous quality control ensures a consistent CTE and robust mechanical properties (yield strength ~345 MPa, tensile strength ~555 MPa). We provide customized wire sizes and forms to meet your exact specs, with faster delivery than many alternatives. Our efficient production process keeps costs down without compromising quality, and our alloy’s excellent machinability and corrosion resistance give it an edge in optical applications. With years of expertise, we’re the partner you can trust for high-performance alloy solutions.
Why Choose Our 4J52 Fe-Ni Alloy Wire?
Our 4J52 Fe-Ni Alloy Wire is built for precision in optical devices. Its low thermal expansion, durability, and corrosion resistance make it ideal for lens frames, laser systems, and aerospace optics. Whether you’re pushing the limits of optical technology or building scientific instruments, our wire ensures your components stay accurate and reliable. Contact us today to see how 4J52 can elevate your optical projects!
About Us:
Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.
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FAQs
What is 4J52 Fe-Ni Alloy Wire?
It’s a nickel-iron alloy wire designed for high-accuracy components, offering low thermal expansion for precision optical devices.What are the key properties of 4J52?
It has a CTE of ~4.9 ppm/°C (20-400°C), excellent corrosion resistance, and high mechanical strength, ideal for optical applications.What industries use 4J52 Alloy Wire?
Optical engineering, aerospace, electronics, and scientific instrumentation rely on it for stable, high-precision components.What are common applications for 4J52?
It’s used in optical mounts, lens frames, laser systems, and precision sensors requiring minimal thermal distortion.How does 4J52 compare to other precision alloys?
Its 52% nickel content provides a balanced CTE and superior dimensional stability compared to many similar alloys.What temperature range is 4J52 effective in?
It maintains low thermal expansion from -40°C to 400°C, ensuring reliability in temperature-varying optical environments.Is 4J52 weldable or machinable?
Yes, it’s weldable and machinable with standard techniques, offering excellent workability for intricate components.How does 4J52 align with industry trends?
It supports the growing need for high-precision materials in optical systems, driven by advancements in laser technology and aerospace optics.
