Our 4J50 Nickel Alloy Wire is a powerhouse for applications needing rock-solid dimensional stability. With 50% nickel and 50% iron, it boasts a low CTE of ~4.8 ppm/°C (20-400°C), keeping components steady through temperature swings. It’s tough, corrosion-resistant, and a breeze to machine, making it ideal for precision parts. Whether you’re working on sensors or optical systems, our 4J50 wire delivers the reliability you need to get the job done.
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The precision alloy market is growing fast, with a projected CAGR of 5.6% through 2032, driven by aerospace, electronics, and automotive advancements. As industries push for smaller, smarter components, materials that resist thermal distortion are critical. Aerospace needs stable alloys for navigation and optical systems, while electronics demand precision in sensors and connectors. The rise of automation and IoT is fueling the need for materials like our 4J50 wire, which offers the thermal stability and durability required for next-gen technology.
| 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 4J50 Nickel Alloy Wire is a go-to for precision applications. It’s used in sensors for aerospace and automotive, where temperature changes can’t compromise accuracy. Optical mounts in high-end instruments rely on its stability to maintain alignment. In electronics, it’s perfect for connectors and temperature regulators that need to stay consistent. You’ll also find it in industrial automation, supporting components like Thermocouple s and precision gauges. Wherever thermal stability is key, our 4J50 wire shines.
Comparison Table: 4J50 Nickel Alloy vs. 4J47 Nickel-Iron vs. Standard Invar
Parameter | 4J50 Nickel Alloy | 4J47 Nickel-Iron | Standard Invar |
|---|---|---|---|
Composition | 50% Ni, 50% Fe | 47% Ni, 53% Fe | 36% Ni, 64% Fe |
CTE (ppm/°C, 20-400°C) | ~4.8 | ~4.7 | ~1.2–1.5 |
Temperature Range | -40°C to 400°C | -40°C to 350°C | -50°C to 230°C |
Curie Temperature | ~420°C | ~410°C | ~279°C |
Yield Strength (MPa) | ~340 | ~330 | ~260–300 |
Tensile Strength (MPa) | ~550 | ~540 | ~450–550 |
Density (g/cm³) | 8.21 | 8.18 | 8.05 |
Applications | Sensors, optical mounts | Precision tooling, optical mounts | Clocks, precision instruments |
Corrosion Resistance | Excellent | Excellent | Moderate |
We know there are plenty of alloy options out there, but our 4J50 Nickel Alloy Wire stands out for its quality and performance. Our strict quality control ensures a consistent CTE and solid mechanical properties (yield strength ~340 MPa, tensile strength ~550 MPa). We offer customized wire sizes and forms to fit your exact needs, with faster delivery than many alternatives. Our efficient production process keeps costs low without sacrificing quality, and our alloy’s excellent corrosion resistance and machinability give it an edge in precision applications. With years of expertise, we’re the partner you can count on for top-tier alloy solutions.
Why Choose Our 4J50 Nickel Alloy Wire?
Our 4J50 Nickel Alloy Wire is built for precision in temperature-varying environments. Its low thermal expansion, durability, and corrosion resistance make it perfect for sensors, optical mounts, and electronics. Whether you’re in aerospace, automotive, or advanced manufacturing, our wire ensures your components stay stable and reliable. Contact us today to see how 4J50 can elevate your 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 4J50 Nickel Alloy Wire?
It’s a nickel-iron alloy wire designed for stable dimensions in temperature-varying environments, perfect for precision components.What are the key properties of 4J50?
It offers a low CTE of ~4.8 ppm/°C (20-400°C), excellent corrosion resistance, and good mechanical strength for reliable performance.What industries use 4J50 Alloy Wire?
Aerospace, electronics, precision manufacturing, and automotive industries use it for thermally stable components.What are common applications for 4J50?
It’s used in precision sensors, optical mounts, electronic connectors, and temperature regulators requiring dimensional stability.How does 4J50 compare to other precision alloys?
Its 50% nickel content provides a balanced CTE and enhanced strength, offering better stability than many similar alloys.What temperature range is 4J50 effective in?
It maintains low thermal expansion from -40°C to 400°C, ideal for environments with significant temperature fluctuations.Is 4J50 weldable or machinable?
Yes, it’s weldable and machinable with standard techniques, with excellent workability for precision shaping.How does 4J50 align with industry trends?
It supports the demand for high-precision, thermally stable materials in aerospace, electronics, and automation, driven by miniaturization and smart technology.
