Welcome to Jiangsu DLX alloy Co., Ltd.
Email:sales8@dlx-alloy.com Mobile/Whatsapp:+86 199 0611 9641
Specialized manufacturer of high temperature alloys, precision alloys and Incoloy,over 20 years.
Whatsapp:+86 199 0611 9641
Email:sales8@dlx-alloy.com
Add:NO.32 West Taihu Road, Xinbei District, Changzhou, Jiangsu,China
Precision Alloy Sheet
Product Details

The Customizable Expansion Alloy 4J33 4J32 4J36 Invar Kovar Precision Alloy Sheet Plate is a high-performance product designed to meet the demanding requirements of various industries. These precision alloy sheet plates offer a combination of affordability and exceptional quality, making them a reliable solution for a wide range of applications. Manufactured from carefully selected precision alloys, these expansion alloys exhibit excellent thermal expansion properties. Their low thermal expansion coefficients ensure dimensional stability, even in temperature-varying environments.
These alloys, including 4J33, 4J32, and 4J36, are known for their superior mechanical strength and durability. They are also highly resistant to corrosion, which contributes to a longer service life in industrial settings. Whether used in electronics, aerospace, telecommunications, or other high-tech industries, these precision alloy sheet plates deliver optimal performance and reliability.
Low Thermal Expansion: The 4J33, 4J32, and 4J36 alloys have low coefficients of thermal expansion, ensuring dimensional accuracy in fluctuating temperatures.
High Mechanical Strength: These alloys offer robust mechanical strength, making them suitable for demanding applications.
Corrosion Resistance: The material is highly resistant to corrosion, which helps to extend the lifespan of the alloy sheets.
Customizable: Available in customizable sizes and specifications to meet unique project requirements.


Parameter | 4J32 Super Invar | Standard Invar (FeNi36) | Stainless Steel (AISI 304) |
|---|---|---|---|
Composition | 64% Fe, 31% Ni, 5% Co | 64% Fe, 36% Ni | Fe, 18% Cr, 8% Ni |
CTE (20–100°C) | ~0.63 × 10⁻⁶/°C | ~1.2 × 10⁻⁶/°C | ~17 × 10⁻⁶/°C |
Thermal Stability Range | -60°C to 80°C | -50°C to 100°C | Wide range, less precise |
Density | 8.15 g/cm³ | 8.05 g/cm³ | 8.0 g/cm³ |
Yield Strength | 276 MPa | 260 MPa | 215 MPa |
Tensile Strength | 483 MPa | 450 MPa | 505 MPa |
Corrosion Resistance | Moderate, weak in chloride environments | Moderate, weak in chloride environments | Excellent, ideal for marine use |
Applications | Precision instruments, aerospace | General precision, electronics | General structural, marine |
Electronics: Ensures precise and stable connections in temperature-sensitive electronic devices.
Aerospace: Suitable for critical components requiring stability and resistance to environmental stress.
Telecommunications: Helps maintain system integrity and reliability in high-performance telecom equipment.
Automotive: Ideal for components that experience high thermal variations, ensuring long-term performance.


Advantages
Cost-Effective Solution: While offering high precision, these alloys are available at affordable prices, making them a cost-effective choice for various applications.
High Precision and Performance: With their customizable nature, these alloys are perfect for industries that require materials that offer both flexibility and durability.
Longer Service Life: The alloys’ resistance to corrosion and wear ensures they maintain their integrity over time, reducing the need for frequent replacements.
Wide Range of Uses: These alloys are versatile, supporting a broad spectrum of industrial needs, from electronics to aerospace.



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.



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


FAQ
1. What is your working time and contacting 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 the Chinese New Year. Please feel free to email us during these holidays if you have any questions.
2. Do you provide free samples?
Yes, we offer free samples for testing purposes. However, the buyer is responsible for covering the shipping costs.
3. What are your payment terms?
We accept various payment methods, including T/T, L/C, D/A, D/P, Western Union, MoneyGram, and PayPal.
4. What is the lead time?
The lead time for samples is typically 7 days after payment confirmation.
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