Expansion Alloys – WOBO Scientific Research New Materials One-Stop Service Platform http://www.hi-tech-materials.com/zh Mon, 03 Mar 2025 05:47:55 +0000 zh-Hans hourly 1 https://wordpress.org/?v=6.8.2 https://www.hi-tech-materials.com/wp-content/uploads/2025/05/cropped-微信图片_20240923152541-32x32.png Expansion Alloys – WOBO Scientific Research New Materials One-Stop Service Platform http://www.hi-tech-materials.com/zh 32 32 Expansion Alloy 4J80 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j80 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j80#respond Mon, 03 Mar 2025 05:45:22 +0000 https://www.hi-tech-materials.com/?post_type=product&p=1914
Expansion Alloy 4J80 (Nickel-Based Non-Magnetic Constant Expansion Ceramic Sealing Alloy) is a high-performance material known for its stable thermal expansion properties, excellent mechanical strength, and non-magnetic nature. This alloy is widely used in various industries, including electronics, aerospace, and telecommunications, where it serves in critical components exposed to demanding environments. Its unique properties make it ideal for applications requiring durability, reliability, and high performance.
]]> Product Overview

4J80 alloy is a nickel-based, non-magnetic constant expansion alloy, primarily used for non-magnetic sealing components in specialized electronic instruments. It features a moderate linear thermal expansion coefficient within the temperature range of room temperature to 600°C, making it particularly suitable for vacuum brazing and edge welding with high-alumina ceramic materials. The alloy exhibits excellent expansion and high-temperature resistance properties, making it ideal for high-precision applications.

Features

  • Moderate Expansion Coefficient: The alloy offers a moderate linear thermal expansion coefficient within the range of room temperature to 600°C, suitable for applications with strict temperature variation requirements.
  • Non-Magnetic Properties: The alloy is non-magnetic, making it ideal for electronic devices and applications where magnetic interference must be avoided.
  • Excellent Welding Performance: Particularly suitable for vacuum brazing and edge welding with ceramic materials.

Applications

  • Specialized Electronic Instruments: Widely used in non-magnetic sealing components for high-precision electronic instruments.
  • High-Alumina Ceramic Welding: Used for vacuum brazing with high-alumina ceramic materials.
  • Edge Welding: Ideal for precision welding of electronic components and instruments.
  • High-Precision Equipment: Extensively used in devices requiring non-magnetic properties and stable thermal expansion performance.
]]> http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j80/feed 0 Expansion Alloy 4J50 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j50 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j50#respond Mon, 03 Mar 2025 05:43:32 +0000 https://www.hi-tech-materials.com/?post_type=product&p=1913
Expansion Alloy 4J50 is a high-performance material known for its excellent thermal expansion properties, mechanical strength, and compatibility with glass and ceramics. This alloy is widely used in various industries, including electronics, aerospace, and telecommunications, where it serves in critical components exposed to demanding environments. Its unique properties make it ideal for applications requiring durability, reliability, and high performance.

]]> Product Overview

4J50 is an iron-nickel-cobalt based controlled-expansion sealing alloy, specifically designed for sealing with soft glass or related ceramics in the electrical vacuum industry. The alloy has a suitable linear thermal expansion coefficient within a specific temperature range, ensuring the stability of the sealed joints during temperature variations without causing stress accumulation. It is widely used in vacuum tubes, electronic packaging, and precision instrument sealing applications.

Features

  • Stable Expansion Coefficient: The alloy’s expansion characteristics are compatible with soft glass or ceramics within a specific temperature range, ensuring stability at the sealing junction.
  • Excellent Sealing Performance: Ideal for sealing in electrical vacuum devices and precision instruments.
  • Strong Mechanical Strength: Provides adequate strength to ensure long-term, stable use.

Applications

  • Electrical Vacuum Industry: Extensively used in vacuum tubes, electronic packaging, and related applications.
  • Precision Instrument Sealing: Suitable for sealing in high-precision instruments requiring accurate sealing.
  • Soft Glass & Ceramic Sealing: Designed for precise sealing with soft glass or ceramics, ensuring stability during temperature changes.

 

]]> http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j50/feed 0 Expansion Alloy 4J45 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j45 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j45#respond Mon, 03 Mar 2025 05:40:53 +0000 https://www.hi-tech-materials.com/?post_type=product&p=1912
Expansion Alloy 4J45 (Iron-Nickel-Cobalt Constant Expansion Sealing Alloy) is a high-performance material known for its stable thermal expansion properties, excellent mechanical strength, and compatibility with glass and ceramics. This alloy is widely used in various industries, including electronics, aerospace, and telecommunications, where it serves in critical components exposed to demanding environments. Its unique properties make it ideal for applications requiring durability, reliability, and high performance.

]]> Product Overview

4J45 alloy is an iron-nickel-cobalt constant expansion sealing alloy widely used in the electrical vacuum industry for sealing with soft glass or ceramic materials. This alloy features a stable linear expansion coefficient within a specific temperature range, ensuring effective matching with the materials. It offers excellent sealing performance and stability.

Features

  • Stable Expansion Coefficient: Provides a consistent linear expansion coefficient within a specific temperature range, ensuring compatibility with soft glass or ceramics.
  • Excellent Sealing Performance: Ideal for high-precision sealing applications in electrical vacuum devices, ensuring both physical and chemical stability.
  • Good High-Temperature Resistance: The alloy performs well in high-temperature environments, ensuring long-term stability in the electrical vacuum industry.

Applications

  • Electrical Vacuum Industry: Used for sealing with soft glass or ceramic materials.
  • High-Precision Sealing Applications: Suitable for sealing in applications requiring stable and precise expansion properties.
  • Electronic Sealing: Used for reliable sealing in electrical vacuum electronic devices.

 

]]> http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j45/feed 0 Expansion Alloy 4J42 (Invar 42) http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j42-invar-42 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j42-invar-42#respond Mon, 03 Mar 2025 05:39:34 +0000 https://www.hi-tech-materials.com/?post_type=product&p=1911
Expansion Alloy 4J42 (Invar 42) is a high-performance material known for its excellent thermal expansion properties, mechanical strength, and compatibility with glass and ceramics. This alloy is widely used in various industries, including electronics, aerospace, and telecommunications, where it serves in critical components exposed to demanding environments. Its unique properties make it ideal for applications requiring durability, reliability, and high performance.

]]> Product Overview

4J42 (Invar 42) is an iron-nickel constant expansion alloy widely used in the electrical vacuum industry, particularly for sealing with soft glass or corresponding ceramics. This alloy features a stable linear expansion coefficient within a specific temperature range, effectively preventing stress concentration at the sealing joints during temperature fluctuations, ensuring the stability and reliability of the equipment.

Features

  • Stable Expansion Coefficient: Exhibits a stable linear expansion coefficient, suitable for applications requiring high-precision expansion matching.
  • Excellent Sealing Performance: Provides good sealing performance, enabling stable sealing with soft glass or ceramic materials.
  • High Mechanical Strength and Stability: Suitable for environments with significant temperature changes, offering strong mechanical strength and stability.
  • Good High-Temperature Resistance: Ensures long-term stable use even in high-temperature conditions.

Applications

  • Electrical Vacuum Industry: Used for precise sealing with soft glass or ceramics.
  • Electronic Sealing: Ideal for electronic devices requiring high precision and stable expansion properties.
  • Precision Instruments: Widely used in the manufacture of precision instruments that require high expansion matching and stability.

 

]]> http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j42-invar-42/feed 0 Expansion Alloy 4J36 (Invar Alloy) http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j36-invar-alloy http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j36-invar-alloy#respond Mon, 03 Mar 2025 05:38:09 +0000 https://www.hi-tech-materials.com/?post_type=product&p=1909
Expansion Alloy 4J36 (Invar Alloy) is a high-performance material known for its extremely low coefficient of thermal expansion, excellent dimensional stability, and good mechanical properties. This alloy is widely used in various industries, including aerospace, precision instruments, and cryogenic engineering, where it serves in critical components exposed to demanding environments. Its unique properties make it ideal for applications requiring minimal thermal expansion, durability, reliability, and high performance.

]]> Product Overview

4J36, also known as Invar 36 alloy, is a special iron-nickel alloy with an ultra-low coefficient of thermal expansion. It exhibits an extremely low linear thermal expansion coefficient within the 20°C to 100°C temperature range. This alloy is widely used in applications that require dimensional stability, such as high-precision instruments, gauge parts, and bimetallic strips. It shows minimal volumetric change when subjected to temperature variations, making it an ideal material for scientific research, precision equipment, and high-temperature applications.

Features

  • Ultra-low Expansion Coefficient: The alloy’s expansion coefficient is extremely low in the 20°C to 100°C range, ensuring dimensional stability under temperature changes.
  • High Stability: Excellent thermal stability, ideal for applications that require precise size control.
  • Good Mechanical Properties: High strength and durability, suitable for long-term use.

Applications

  • Precision Instruments: Widely used in instruments and gauge parts that require dimensional stability.
  • Bimetallic Strips: Suitable for manufacturing bimetallic strips in heating elements.
  • Resonance Cavities: Ideal for devices such as resonant cavities where minimal temperature variations are critical.
  • High-Precision Equipment: Used in scientific research and precision manufacturing, especially in temperature-sensitive applications.

 

]]> http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j36-invar-alloy/feed 0 Expansion Alloy 4J34 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j34 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j34#respond Mon, 03 Mar 2025 05:36:28 +0000 https://www.hi-tech-materials.com/?post_type=product&p=1907
Expansion Alloy 4J34 is a high-performance material known for its excellent thermal expansion properties, mechanical strength, and compatibility with glass and ceramics. This alloy is widely used in various industries, including electronics, aerospace, and telecommunications, where it serves in critical components exposed to demanding environments. Its unique properties make it ideal for applications requiring durability, reliability, and high performance.
]]> Product Overview

4J34 is an iron-nickel-cobalt based controlled-expansion sealing alloy, specifically designed for sealing with materials like 95% alumina (Al2O3). It maintains a linear thermal expansion coefficient similar to that of ceramic materials within the temperature range of -60°C to +600°C, helping to avoid unwanted stress accumulation during temperature changes. This alloy is widely used in electronic packaging and precision instrument sealing applications.

Features

  • Expansion Coefficient Similar to Ceramics: Matches the thermal expansion coefficient of 95% alumina and similar materials, ensuring stability at the sealing junction.
  • Wide Temperature Range: Provides excellent expansion properties across the -60°C to +600°C temperature range.
  • High Strength and Durability: Exhibits strong mechanical properties, making it suitable for long-term use.

Applications

  • Ceramic Sealing: Used for high-precision sealing with alumina ceramics (e.g., 95% Al2O3) and similar materials.
  • Precision Electronic Packaging: Ideal for sealing applications in electronic components and high-precision devices.
  • High-Temperature Environments: Demonstrates excellent stability and mechanical strength, making it suitable for demanding high-temperature applications.

 

]]> http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j34/feed 0 Expansion Alloy 4J33 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j33 http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j33#respond Mon, 03 Mar 2025 05:31:39 +0000 https://www.hi-tech-materials.com/?post_type=product&p=1905
Expansion Alloy 4J33 is a high-performance material known for its excellent thermal expansion properties, mechanical strength, and compatibility with glass and ceramics. This alloy is widely used in various industries, including electronics, aerospace, and telecommunications, where it serves in critical components exposed to demanding environments. Its unique properties make it ideal for applications requiring durability, reliability, and high performance.

]]> Product Overview

4J33 is a controlled-expansion iron-nickel-cobalt alloy specially designed for sealing with materials such as 95% alumina (Al2O3). This alloy has a linear thermal expansion coefficient similar to that of 95% alumina within the temperature range of -60°C to +600°C, ensuring that no excessive stress is generated during temperature changes. It is widely used in high-precision sealing applications.

Features

  • Similar Thermal Expansion Coefficient: The expansion coefficient is closely matched to that of 95% alumina, ensuring stability at the sealing junction during temperature variations.
  • Wide Temperature Range: Maintains excellent expansion characteristics across a wide temperature range from -60°C to +600°C.
  • High Strength: Provides sufficient mechanical strength and durability for long-term use.

Applications

  • Ceramic Sealing: Commonly used for sealing with alumina ceramics (e.g., 95% Al2O3).
  • Precision Sealing Technology: Suitable for high-temperature, high-precision sealing applications, such as electronic packaging and precision instrument manufacturing.
  • High-Temperature Applications: Ideal for sealing components used in high-temperature environments.

 

]]> http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j33/feed 0 Expansion Alloy 4J32 (Super-Invar Alloy) http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j32-super-invar-alloy http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j32-super-invar-alloy#respond Mon, 03 Mar 2025 05:29:50 +0000 https://www.hi-tech-materials.com/?post_type=product&p=1903
Expansion Alloy 4J32 (Super-Invar Alloy) is a high-performance material known for its excellent thermal expansion properties, mechanical stability, and low coefficient of thermal expansion. This alloy is widely used in various industries, including aerospace, precision instruments, and optical devices, where it serves in critical components exposed to demanding environments. Its unique properties make it ideal for applications requiring minimal thermal expansion, durability, reliability, and high performance.

]]> Product Overview

4J32, also known as Super-Invar, is a low-expansion iron-nickel-cobalt alloy designed for applications that require high dimensional stability. This alloy exhibits an extremely low coefficient of expansion within the temperature range of 20-100°C, ensuring dimensional stability despite temperature fluctuations. It is widely used in the manufacturing of high-precision instruments, gauge components, and other applications that demand strict dimensional accuracy.

Features

  • Low Expansion Coefficient: Demonstrates an exceptionally low expansion coefficient in the 20-100°C range, ensuring dimensional stability under temperature variations.
  • High Dimensional Stability: Ideal for components in precision instruments and equipment where high dimensional accuracy is required.
  • Stable Mechanical Properties: Offers stable mechanical strength and toughness, suitable for various high-precision fields.

Applications

  • Precision Instruments: Widely used in the manufacture of instruments and gauges, especially for parts that require strict dimensional stability.
  • Bimetallic Layers: Used in the production of thermally responsive bimetallic layers and other precision components.
  • Resonant Cavities: Suitable for high-precision applications such as resonant cavities that demand high stability.

 

]]> http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j32-super-invar-alloy/feed 0 Expansion Alloy 4J29 (Kovar Alloy) http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j29-kovar-alloy http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j29-kovar-alloy#respond Mon, 03 Mar 2025 05:24:54 +0000 https://www.hi-tech-materials.com/?post_type=product&p=1901
Expansion Alloy 4J29 (Kovar Alloy) is a high-performance material known for its excellent thermal expansion properties, mechanical strength, and compatibility with glass and ceramics. This alloy is widely used in various industries, including electronics, aerospace, and telecommunications, where it serves in critical components exposed to demanding environments. Its unique properties make it ideal for applications requiring durability, reliability, and high performance.

]]> Product Overview

4J29 (also known as Kovar Alloy) is a ferrous-nickel-cobalt-based expansion sealing alloy, specially designed for matching and sealing with hard glass. This alloy has a linear expansion coefficient similar to that of hard glass within a specific temperature range, effectively preventing stress concentration at the sealing joint during temperature fluctuations. It is widely used in the electronic vacuum industry.

Features

  • Similar Expansion Coefficient to Hard Glass: Exhibits a linear expansion coefficient close to that of hard glass within a specific temperature range, avoiding mismatched thermal expansion.
  • Excellent Sealing Performance: Particularly suitable for sealing applications in electronic vacuum devices and hard glass.
  • Stable Mechanical Properties: Offers good mechanical performance, ensuring long-term use.

Applications

  • Electronic Vacuum Industry: Widely used for sealing in electronic vacuum tubes and other high-precision electronic components.
  • Hard Glass Sealing: Used for sealing hard glass, particularly in applications requiring high temperature resistance and thermal expansion matching.
  • Precision Instruments: Suitable for thermal sealing needs in precision instruments.

 

]]> http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j29-kovar-alloy/feed 0 Expansion Alloy 4J28 (Glass Sealed Iron-Chromium Alloy) http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j28-glass-sealed-iron-chromium-alloy http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j28-glass-sealed-iron-chromium-alloy#respond Mon, 03 Mar 2025 05:19:50 +0000 https://www.hi-tech-materials.com/?post_type=product&p=1899
Expansion Alloy 4J28 (Glass Sealed Iron-Chromium Alloy) is a high-performance material known for its excellent thermal expansion properties, corrosion resistance, and compatibility with soft glass. This alloy is widely used in various industries, including electronics, precision measurement tools, and cryogenic engineering, where it serves in critical components exposed to demanding environments. Its unique properties make it ideal for applications requiring durability, reliability, and high performance.
]]> Product Overview

4J28 (Alloy 27) is a glass-sealed iron-chromium alloy specifically designed for sealing electrical components with soft glass. It has a linear expansion coefficient similar to that of soft glass within a certain temperature range and offers good corrosion resistance. This alloy is primarily used in electrical vacuum and electronic devices, providing stable sealing performance.

Features

  • Stable Expansion Coefficient: Matches the expansion coefficient of soft glass within specific temperature ranges, ensuring effective sealing.
  • Corrosion Resistance: Exhibits excellent corrosion resistance, making it suitable for long-term use in various environments.
  • High-Temperature Suitability: Capable of stable operation at higher temperatures, meeting the demands of electrical components.

Applications

  • Electrical Vacuum Equipment: Used for sealing electrical components with soft glass.
  • Electronics Industry: Applied in high-precision sealing and electronic components.
  • Industrial Applications: Widely used in environments requiring high-temperature, high-stability sealing.

 

]]> http://www.hi-tech-materials.com/zh/product/expansion-alloy-4j28-glass-sealed-iron-chromium-alloy/feed 0