Our 4J47 Nickel-Iron Alloy Tube is a top-notch choice for precision engineering, delivering low thermal expansion and rock-solid stability. With 47% nickel and 53% iron, it boasts a CTE of ~4.7 ppm/°C (20-350°C), keeping your components steady through temperature changes. It’s tough, corrosion-resistant, and super easy to machine, making it perfect for crafting intricate parts. Whether you’re working on optical mounts or precision sensors, our 4J47 tube ensures top-tier performance.
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The precision engineering market is booming, with a projected CAGR of 5.9% through 2032, fueled by advancements in aerospace, electronics, and automotive sectors. As industries push for smaller, more precise components, low- Expansion Alloy s like our 4J47 tube are in high demand. Aerospace relies on them for optical systems and sensors, while electronics need stable materials for connectors and miniaturized parts. The rise of automation and IoT is driving the need for thermally stable alloys that perform under stress. Our 4J47 tube is built to meet these trends with precision and reliability.
| 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 4J47 Nickel-Iron Alloy Tube is a versatile performer in precision engineering. It’s used in precision tooling for aerospace and automotive, where tight tolerances are critical. Optical mounts in high-end instruments rely on its stability to maintain alignment. In electronics, it’s perfect for connectors and sensors that need to resist thermal distortion. You’ll also find it in temperature-sensitive applications like Thermocouple s and control systems, where its low CTE ensures accuracy. Wherever precision and thermal stability matter, our 4J47 tube delivers.
Comparison Table: 4J47 Nickel-Iron vs. 4J45 Iron-Nickel vs. Invar 4J36
|
Parameter |
4J47 Nickel-Iron |
4J45 Iron-Nickel |
Invar 4J36 |
|---|---|---|---|
|
Composition |
47% Ni, 53% Fe |
45% Ni, 55% Fe |
36% Ni, 64% Fe |
|
CTE (ppm/°C, 20-350°C) |
~4.7 |
~4.5 |
~1.2–1.5 |
|
Temperature Range |
-40°C to 350°C |
-40°C to 300°C |
-50°C to 230°C |
|
Curie Temperature |
~410°C |
~400°C |
~279°C |
|
Yield Strength (MPa) |
~330 |
~320 |
~260–300 |
|
Tensile Strength (MPa) |
~540 |
~530 |
~450–550 |
|
Density (g/cm³) |
8.18 |
8.20 |
8.05 |
|
Applications |
Precision tooling, optical mounts |
Precision gauges, optical instruments |
Aerospace tooling, composite molds |
|
Corrosion Resistance |
Excellent |
Good |
Moderate |
We know there are plenty of alloy options out there, but our 4J47 Nickel-Iron Alloy Tube stands out for its quality and versatility. Our strict quality control ensures a consistent CTE and robust mechanical properties (yield strength ~330 MPa, tensile strength ~540 MPa). We offer customized tube sizes and forms to fit your exact specs, with faster delivery than many alternatives. Our efficient production process keeps costs low without compromising quality, and our alloy’s excellent machinability and corrosion resistance give it an edge in precision applications. With decades of expertise, we’re your go-to partner for high-performance alloy solutions.
Why Choose Our 4J47 Nickel-Iron Alloy Tube?
Our 4J47 Nickel-Iron Alloy Tube is engineered for precision and thermal stability. Its low thermal expansion, durability, and corrosion resistance make it ideal for aerospace, electronics, and advanced manufacturing. Whether you’re crafting precision tools or temperature-sensitive sensors, our tube ensures your components perform flawlessly. Contact us today to see how 4J47 can take your projects to the next level!
For more details, pls directly contact us.
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 4J47 Nickel-Iron Alloy Tube?
It’s a nickel-iron alloy tube engineered for precision engineering, offering low thermal expansion for thermally stable components. -
What are the key properties of 4J47?
It has a CTE of ~4.7 ppm/°C (20-350°C), excellent corrosion resistance, and great machinability, perfect for precision applications. -
What industries use 4J47 Alloy Tube?
Aerospace, electronics, precision engineering, and automotive industries rely on it for high-precision, thermally stable parts. -
What are common applications for 4J47?
It’s used in precision tooling, optical mounts, electronic connectors, and temperature-sensitive sensors. -
How does 4J47 compare to other precision alloys?
Its 47% nickel content provides a balanced CTE and excellent machinability, offering better stability than many similar alloys. -
What temperature range is 4J47 effective in?
It maintains low thermal expansion from -40°C to 350°C, ensuring reliability in varied temperature environments. -
Is 4J47 weldable or machinable?
Yes, it’s highly weldable and machinable with standard techniques, making it ideal for intricate component fabrication. -
How does 4J47 align with industry trends?
It supports the need for high-precision, thermally stable materials in aerospace, electronics, and automation, driven by miniaturization and smart technology.
