Product Description
4J143, 4J44, and FeNi44 (also known as 34НК in Russian specifications) are precision nickel-iron alloy wires with a nickel content of approximately 44%. These alloys are primarily known for their low thermal expansion and excellent dimensional stability. They are widely used in applications that require precise control over expansion properties, such as glass-to-metal sealing, precision instruments, and electronic components.
Properties of 4J143, 4J44, FeNi44, and 34НК
| Property |
Specification |
| Chemical Composition |
Ni: ~44%, Fe: Balance, Trace Co and Mn |
| Thermal Expansion Coefficient |
~8.0 × 10 /°C (20-300°C range) |
| Density |
~8.2 g/cm³ |
| Tensile Strength |
High |
| Magnetic Properties |
Low magnetic permeability |
| Corrosion Resistance |
Excellent in atmospheric environments |
| Heat Resistance |
High thermal stability and resistance to cycling |
| Available Forms |
Wire, strip, rod, sheet |
| Applications |
Electronics, precision instruments, aerospace |
| Operating Temperature |
-200°C to +400°C |
Key Characteristics:
-
Thermal Expansion Control:
- These alloys are designed for stable and predictable thermal expansion, ideal for glass-to-metal or ceramic-to-metal sealing where mismatched expansion rates could cause stress or failure.
-
Dimensional Stability:
- The alloys maintain their shape and dimensions even under temperature fluctuations, ensuring consistent performance.
-
High Strength:
- Excellent tensile strength makes them suitable for applications under mechanical and thermal stress.
-
Corrosion Resistance:
- Resistant to oxidation and corrosion in atmospheric environments, ensuring durability and longevity.
-
Low Magnetic Permeability:
- Ideal for precision instruments and sensitive electronics that require minimal magnetic interference.
-
Ease of Processing:
- Can be processed into various forms (wire, strip, rod, sheet), making them versatile for a wide range of applications.
Applications of 4J143, 4J44, FeNi44, and 34НК:
-
Electronics:
- Commonly used in electrical connectors, transistor components, and hermetically sealed devices where thermal expansion stability is critical.
-
Glass-to-Metal Sealing:
- These alloys are widely employed in sealing applications, such as vacuum tubes, light bulbs, and other components where a strong bond between glass and metal is essential.
-
Precision Instruments:
- Used in the production of scientific instruments and measurement tools that require dimensional accuracy and stability.
-
Aerospace:
- Utilized in aerospace systems and components due to their resistance to temperature variations and high reliability.
-
Cryogenic Applications:
- Suitable for low-temperature systems, such as liquefied gas storage and transport, due to their stability at cryogenic temperatures.
-
Industrial Uses:
- Found in molds, dies, and tooling where dimensional stability under thermal cycling is necessary.
Advantages:
-
Thermal Expansion Matching:
- Perfectly suited for sealing with glass and ceramics due to its controlled expansion properties.
-
High Reliability:
- Long-lasting performance in demanding environments, reducing the need for maintenance or replacements.
-
Corrosion and Oxidation Resistance:
- Durable in atmospheric conditions, ensuring a long service life.
-
Low Magnetic Interference:
- Ensures accurate performance in precision instruments and electronics.
-
Wide Operating Temperature Range:
- Reliable performance from cryogenic temperatures to moderate heat, offering versatility across industries.
Conclusion:
4J143, 4J44, FeNi44, and 34НК precision nickel alloy wires are essential materials for industries requiring low thermal expansion, high mechanical strength, and excellent corrosion resistance. With their unique properties, these alloys are ideal for glass-to-metal sealing, precision instruments, aerospace components, and electronic applications. Their reliability and stability make them indispensable in high-performance and precision-demanding industries.
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Company Profile
Shandong Titanium Nickel Special Steel Co., Ltd., registered funds (one thousand yuan for 10,000 yuan), the company is mainly committed to high -tech enterprises that are integrated with special alloy materials, specializing in the research and sales of special alloys such as nickel -based and iron -based. Products include corrosion-resistant alloys, superalloys, precision alloys, Hastelloy, Monel, INCONEL, INCOLOY, copper-nickel alloys, titanium and titanium alloys, zirconium and zirconium alloys, nickel and nickel-based alloys, nickel-cobalt-based heat-resistant alloys , Hafnium alloy, etc., more than 60 kinds of alloy materials such as special stainless steel. On the basis of stabilizing the quality of the original products, according to the market demand, it solves the quality problems existing in the traditional metallurgical process, and ensures the low miscellaneous and low deflection of the alloy material products, which has won an excellent reputation in the industry.
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FAQ
What is a Precision Alloy Nickel Alloy?
A Precision Alloy Nickel Alloy is a specialized group of nickel-based alloys designed to perform exceptionally well in applications that require high precision and dimensional stability. These alloys are often used in electronics, aerospace, and instrumentation where accuracy, resistance to temperature changes, and mechanical strength are critical.
2. What are the primary features of Precision Alloy Nickel Alloys?
Precision Alloy Nickel Alloys are known for the following key features:
- Low and Stable Thermal Expansion: They have controlled and predictable thermal expansion, making them ideal for use in environments where dimensional stability is essential.
- High Strength: These alloys possess high tensile and yield strength, offering resistance to deformation and failure under stress.
- Magnetic Properties: Many precision nickel alloys offer excellent magnetic permeability, which is crucial in the manufacture of magnetic devices and components.
- Corrosion Resistance: They are resistant to corrosion, oxidation, and wear, ensuring longevity in harsh conditions.
- Weldability: These alloys are typically easy to weld and form into complex shapes without losing their properties.
3. What are common applications of Precision Alloy Nickel Alloys?
Precision Alloy Nickel Alloys are used in:
- Electronics: Connectors, switches, relays, and sensors.
- Aerospace: Components in turbines, engines, and high-precision mechanical parts.
- Automotive: Parts that require resistance to extreme temperatures and mechanical stress.
- Instrumentation: Thermocouples, strain gauges, and precision measuring instruments.
- Magnetic Devices: Transformers, magnetic sensors, and inductors.
4. What are the differences between Precision Alloy Nickel Alloys and other Nickel Alloys?
The main difference lies in the specific application and performance:
- Precision Alloys: Designed specifically for applications requiring high precision, stability, and uniformity in temperature and mechanical stress conditions.
- Standard Nickel Alloys: While nickel alloys generally offer good strength and corrosion resistance, precision alloys are tailored for applications where dimensional accuracy and material properties must remain consistent under extreme conditions.
5. What are some examples of Precision Alloy Nickel Alloys?
Some of the well-known precision alloy nickel alloys include:
- Invar (36% Nickel): Known for its low thermal expansion, used in precision instruments.
- Kovar (29% Nickel): A nickel-iron alloy used in electronic and sealing applications.
- 1J06 (1J6): A precision alloy with excellent thermal stability and low thermal expansion used in electronics and precision instruments.
6. What industries use Precision Alloy Nickel Alloys?
Industries that commonly use precision alloy nickel alloys include:
- Electronics and Telecommunications: For components that need stability and durability under varying temperatures and electrical loads.
- Aerospace and Defense: For parts exposed to extreme temperature changes, mechanical stress, and corrosion.
- Automotive: Especially in high-performance vehicles and systems like sensors and exhaust components.
- Medical Equipment: In instruments and devices that require high precision and long-term reliability.
7. What is the significance of low thermal expansion in Precision Alloy Nickel Alloys?
Low thermal expansion means that the material's dimensions remain stable even when exposed to temperature changes. This is crucial in high-precision applications such as measuring instruments, optical devices, and aerospace components, where even minute dimensional changes can lead to performance degradation.
8. How is Precision Alloy Nickel Alloy different from other types of alloys in terms of strength and durability?
Precision alloys, particularly those made from nickel, tend to have high tensile strength and excellent resistance to deformation under mechanical stress. These alloys are engineered to maintain their shape and structural integrity over a wider range of temperatures and environmental conditions, compared to other materials like carbon steel or standard stainless steel.
9. Are Precision Alloy Nickel Alloys magnetic?
Yes, many precision alloy nickel alloys, such as Kovar (29% Nickel), are designed to maintain stable magnetic properties. This makes them ideal for applications in transformers, magnetic sensors, and electronic devices that require controlled magnetic permeability.
10. How are Precision Alloy Nickel Alloys manufactured?
These alloys are typically produced using advanced metallurgical processes such as:
- Vacuum Induction Melting (VIM) or Vacuum Arc Remelting (VAR) for refining material purity.
- Casting and Hot or Cold Rolling to form sheets, strips, or wires.
- Precision machining techniques to create intricate components with tight tolerances.
- Heat Treatment to enhance mechanical properties such as strength, toughness, and dimensional stability.
11. Can Precision Alloy Nickel Alloys be welded and processed easily?
Yes, most precision alloy nickel alloys have good weldability and can be processed into complex shapes, making them suitable for high-precision manufacturing. However, the exact processing techniques may vary depending on the alloy composition and specific application requirements.
12. What is the price range for Precision Alloy Nickel Alloys?
The price of precision alloy nickel alloys can vary depending on the alloy grade, size, and supplier. Generally, they are more expensive than standard nickel alloys due to their specific formulation and high-performance properties. Prices typically range from $20 to $100 per kilogram or more, depending on the material's purity and market conditions.
13. How do I choose the right Precision Alloy Nickel Alloy for my application?
When selecting a precision alloy, consider the following factors:
- Thermal expansion requirements (low expansion or stable behavior under temperature fluctuations).
- Mechanical strength needed for your application (tensile strength, hardness, elongation).
- Magnetic properties (whether your application involves magnetic fields).
- Corrosion resistance for exposure to harsh environments.
- Workability (whether the alloy needs to be welded, machined, or formed).
14. What are the typical sizes and forms available for Precision Alloy Nickel Alloys?
Precision alloy nickel alloys are available in various forms, including:
- Sheets and plates for use in manufacturing and construction.
- Wire and strips for electronics and fine machinery.
- Rods and bars for precision machining.
- Foils for use in thin applications such as sensors or coatings.
15. How can I contact you for more information?
You can contact us through the following methods:
Online support: Visit our website for live chat
Address:
300 Meters North of Liaoniu Road and Xindong Ring Road, Liaocheng High-Tech Zone, Liaocheng, Shandong, China
We look forward to providing you with high-quality products and services!
If you have any other questions, feel free to contact us, and we will do our best to assist you!
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