Large Stock Precision Invar Kovar 4j29 4j36 Expansion Alloy Round Bar

Precision alloys, also known as special alloys or functional alloys, are materials with exceptional physical and chemical properties tailored for specific industrial applications. These alloys are characterized by their high precision, stability, and unique performance in different environmental conditions.

The alloys in our stock, including Invar, Kovar, 4J29 , and 4J36 , are widely used in industries requiring high levels of precision, stability, and resistance to thermal expansion. These alloys are commonly used in:

• Electronics Industry: Precision alloys are used in the manufacturing of magnetic cores, inductors, and components due to their excellent magnetic properties and stability under varying temperatures.

• Aerospace Industry: Precision alloys such as Kovar and Invar are used in the production of turbine blades, engine components, and other critical parts that demand high strength, dimensional stability, and resistance to temperature fluctuations.

• Medical Industry: These alloys are often used for the production of surgical instruments and implants because of their biocompatibility, high precision, and durability, ensuring long-term reliability in medical applications.

Invar, Kovar, 4J29, and 4J36 offer distinct properties, including low thermal expansion, high strength, and excellent machinability, making them ideal for advanced technological applications that require high precision and performance.

• Low Thermal Expansion: Invar alloys, such as Invar 36, exhibit an extremely low coefficient of thermal expansion (CTE), making them ideal for applications where dimensional stability across temperature changes is crucial.

• High Strength and Durability: These alloys provide high mechanical strength and excellent fatigue resistance, making them perfect for demanding applications in aerospace and industrial sectors.

• Excellent Magnetic Properties: Kovar (4J29) is especially valued for its excellent magnetic properties, such as low magnetic susceptibility, making it suitable for applications in electronics and electrical engineering.

• Good Fabricability: These precision alloys can be easily fabricated into complex shapes, including round bars, due to their superior machinability and weldability.

• Biocompatibility: With their ability to resist corrosion and maintain high performance in biological environments, these alloys are commonly used in medical devices and implants.

• 

• 

• Electronics: Used in the production of magnetic cores, inductors, transistors, and other critical electronic components where precise control of thermal expansion and magnetic properties is required.

• Aerospace: Invar and Kovar alloys are essential in manufacturing turbine blades, aircraft components, engines, and spacecraft parts due to their excellent mechanical strength, dimensional stability, and resistance to high temperatures.

• Medical: These alloys are ideal for producing surgical instruments, implants, and medical devices that demand high biocompatibility and stability, ensuring long-term reliability.

• Precision Instruments: Used in optical devices, measuring equipment, and precision instruments where high accuracy and stability are critical across varying temperatures.

• 

• 
  

• High Precision and Stability: These alloys maintain their properties under extreme temperature fluctuations, making them indispensable for applications requiring precise dimensional stability.

• Low Thermal Expansion: Particularly Invar alloys, such as Invar 36, have one of the lowest coefficients of thermal expansion, making them ideal for precision instruments that must operate under variable temperatures.

• Durability and Longevity: The alloys offer excellent wear resistance and mechanical strength, ensuring a long service life even under challenging conditions.

• Wide Range of Applications: The versatility of these alloys across industries such as electronics, aerospace, and medical technologies makes them essential for modern manufacturing processes.

• Customizable: Available in a variety of forms, including round bars, these alloys can be tailored to meet the specific needs of your application, whether it requires specific dimensions or surface finishes.

Our precision alloy round bars are carefully packaged to avoid any damage during transit. The bars are wrapped securely and packed in protective materials to prevent any scratches or deformations. We offer a variety of shipping options, including standard and expedited shipping, to meet your needs. International orders may require special handling and packaging to comply with customs regulations.

• ABOUT US
• About DLX ALLOY

• CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got ISO9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, Precision Alloy , FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.

• 

• About Our factory

• 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. We also provide chemical analysis reports for every FeCrAl alloy, NiCr alloy, and other products purchased.

• For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

• 

• Client Visits

• Building Stronger Partnerships

• 

• We support all kinds of testing:

• 

FAQ

What is your working time and contacting information?

Monday-Saturday: 7:30 AM - 17:00 PM (Beijing time, GMT+08:00). We have public holidays during May 1-3, October 1-7, and Chinese New Year. Please email us during holidays if you have any questions.

Do you provide free samples?

Yes, we can provide a free sample for testing. The buyer is responsible for all shipping costs.

What are your payment terms?

We accept T/T, L/C, D/A, D/P, Western Union, MoneyGram, and PayPal.

What is the lead time?

Typically, the sample lead time is 7 days after payment confirmation.