0.5-7.5mm Customizable 4J33 4J32 4J36 Invar Kovar Precision Expansion Alloy

The 4J33, 4J32, and 4J36 precision alloys, commonly referred to as Invar and Kovar alloys, are well-known for their remarkable stability and low thermal expansion coefficients. These alloys, manufactured with the utmost precision, are ideal for applications requiring high-performance standards, particularly in industries where dimensional stability and reliability are critical. Available in wire forms ranging from 0.5mm to 7.5mm, these alloys provide excellent uniformity and offer the flexibility needed for a wide range of applications.

The 4J33, 4J32, and 4J36 grades of Invar Kovar alloys are engineered for superior performance in extreme conditions. Key features include:

• Low Coefficient of Thermal Expansion (CTE): These alloys exhibit an extremely low CTE, meaning they expand very little with temperature changes. This makes them ideal for use in environments that experience fluctuating temperatures.

• High Dimensional Stability: The alloys maintain their shape and size even under varying thermal stresses, making them perfect for precise applications in electronics, aerospace, and instrumentation.

• Resistance to Thermal Shock: They can withstand rapid temperature changes without warping or cracking, which is crucial for components exposed to harsh environments.

• Versatility and Customizability: Available in wire forms of 0.5mm to 7.5mm, these alloys can be customized to meet the specific needs of your project, whether it’s a small-scale application or a large industrial operation.

• Corrosion Resistance: They also offer some degree of resistance to corrosion, ensuring longevity in many environments, including industrial and aerospace sectors.

• 

• 

These precision alloys are widely used across several high-tech industries due to their exceptional properties:

1. Electronics Industry
   4J33, 4J32, and 4J36 alloys are extensively used in the electronics industry, particularly in integrated circuits (ICs) and semiconductor packaging. Their low thermal expansion is crucial for maintaining the integrity of delicate components when exposed to varying temperatures. As electronics continue to evolve toward higher performance and smaller sizes, these alloys help ensure reliable functionality without compromising the performance of circuits.

2. Aerospace
   In the aerospace sector, these alloys are used in critical components where performance stability at extreme temperatures is non-negotiable. Their resistance to thermal expansion makes them highly suitable for aerospace instrumentation and thermally sensitive equipment such as satellite systems and aircraft components. Whether in the design of aircraft engines or space exploration instruments, these alloys provide the reliability necessary for success.

3. Precision Instruments
   Precision instruments that rely on accurate measurements, such as thermometers, pressure gauges, and other measurement devices, benefit from the high precision and uniformity of 4J33, 4J32, and 4J36 alloys. The alloys ensure that these instruments remain stable and provide accurate data in environments with significant temperature variations.

4. Automotive and Industrial Applications
   These alloys are also used in automotive and industrial applications, where temperature fluctuations are common. For example, they are found in engine sensors and powertrain systems, where they help maintain the operational efficiency of complex mechanical systems under different thermal conditions.

5. Medical Devices
   High-performance alloys such as 4J33, 4J32, and 4J36 also play a role in medical technology, particularly in devices that must operate within highly controlled environments. These alloys’ ability to withstand thermal cycling and maintain dimensional stability is critical in medical instrumentation used in diagnostics, imaging, and surgery.

Advantages of 4J33, 4J32, and 4J36 Alloys

• Exceptional Dimensional Stability: The primary benefit of these alloys is their low coefficient of thermal expansion, ensuring that they maintain size and shape even under fluctuating temperature conditions.

• High Precision: The manufacturing process guarantees high levels of precision, which is essential for applications requiring accurate and uniform dimensions, such as electronics and aerospace.

• Thermal Stress Resistance: These alloys can endure significant thermal cycles without warping or deforming, making them ideal for high-precision applications in temperature-sensitive environments.

• Customizable Size and Shape: With wire forms ranging from 0.5mm to 7.5mm, these alloys can be tailored to meet specific needs, whether for intricate components or larger-scale industrial applications.

• Long-Term Durability: With resistance to thermal shock, corrosion, and deformation, these alloys offer extended operational lifespans in demanding environments.

The 4J33, 4J32, and 4J36 alloys are primarily composed of nickel and iron, along with small amounts of cobalt and other elements. This specific chemical composition is what gives these alloys their unique properties, including low thermal expansion, high corrosion resistance, and dimensional stability. The exact composition varies slightly between the different grades, but all share a core focus on performance in temperature-sensitive applications.

Our precision alloy wires are carefully packaged to prevent any damage during transport. The wires are securely coiled or spooled and can be packaged according to specific customer requirements. We offer flexible shipping options to ensure that your order is delivered on time, whether you need a small order for testing or a large shipment for industrial use.

• 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 contact information?
Our working hours are Monday to Saturday, from 7:30 AM to 5:00 PM (Beijing Time, GMT+08:00). We observe public holidays during May 1-3, October 1-7, and Chinese New Year. Please feel free to email us during the holidays if you have any questions.

Do you provide free samples?
Yes, we offer free samples for testing. However, the buyer is responsible for covering the shipping costs.

What are your payment terms?
We accept various payment methods, including T/T, L/C, D/A, D/P, Western Union, MoneyGram, and Paypal.

What is the lead time for orders?
The typical lead time for samples is 7 days after payment confirmation. Bulk orders may take longer, depending on order size and production schedules.

How can I contact your customer service?
You can contact our customer service team through email or phone. Our dedicated team is ready to assist you with inquiries, quotations, and technical support.