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 Strip
Product Details

Our Precision Alloy Strip , made from carefully formulated nickel-based and iron-based alloys, offers outstanding mechanical and thermal properties. With excellent tensile strength, high ductility, and remarkable thermal stability, this product can withstand significant stress and temperature fluctuations. Manufactured to ultra-precise dimensions with a smooth surface finish, this alloy strip is suitable for a wide range of demanding applications. Whether in aerospace, electronics, medical devices, or automotive components, it meets the stringent requirements of various industries that rely on precision materials.
High Tensile Strength and Ductility
The 3J21 Elastic Alloy Strip is designed with high tensile strength, allowing it to endure mechanical stress without losing its shape. Its excellent ductility ensures that it can be formed into complex shapes without cracking, making it ideal for precision applications.
Exceptional Thermal Stability
This precision alloy strip is engineered to resist significant temperature changes. Whether exposed to high heat or extreme cold, the material maintains its integrity and performance, making it ideal for environments with fluctuating temperatures.
Precise Manufacturing with Smooth Surface Finish
Each strip is crafted with ultra-precise dimensions, ensuring high consistency in mechanical properties and functionality. The smooth surface finish is ideal for applications where surface quality is critical, such as in connectors or aerospace components.
Corrosion Resistance
Due to the alloy’s composition, it demonstrates strong resistance to corrosion, which is essential in applications where the material will be exposed to harsh or corrosive environments.


Parameter | 3J21 High-Elasticity Strip | Standard Spring Steel | Stainless Steel (e.g., SUS301) |
|---|---|---|---|
Yield Strength (MPa) | Up to 3,000 | 1,500–2,000 | 1,000–1,800 |
Elastic Modulus (GPa) | ~200 | ~200 | ~193 |
Corrosion Resistance | Excellent, ideal for harsh conditions | Moderate, needs coatings | Excellent, chromium-based |
Temperature Range (°C) | -40 to +200 | -20 to +150 | -50 to +300 |
Fatigue Resistance | Outstanding, millions of cycles | Good, but lower than 3J21 | Good, varies by alloy |
Hysteresis | Low, minimal energy loss | Moderate | Moderate to high |
Applications | Diaphragms, springs, actuators | General springs | Springs, electronics |
Cost-Effectiveness | High, due to longevity | Moderate, lower initial cost | Higher, material-driven |
Applications of Precision Alloy Strip
Aerospace Industry
In aerospace, the 3J21 Elastic Alloy Strip is used for manufacturing engine components, fasteners, and other high-performance parts that must withstand high stresses and extreme temperatures. The alloy’s thermal stability and mechanical properties are critical in ensuring the safety and performance of aerospace systems.
Electronics Industry
In the electronics sector, this precision alloy strip is widely used in connectors, terminals, and other critical components. Its high ductility and resistance to temperature variations make it ideal for applications that require consistent electrical conductivity and mechanical performance.
Medical Industry
For medical devices such as sensors, implants, and surgical tools, the precision alloy strip provides the durability and resilience needed to perform reliably over long periods. Its corrosion resistance ensures the longevity and safety of these devices.
Automotive Industry
In automotive manufacturing, the 3J21 Elastic Alloy Strip is used for components like springs, clips, and electrical contacts. Its superior mechanical properties ensure these parts can endure the stresses and temperatures they experience in automotive systems.

The 3J21 Elastic Alloy Strip undergoes a precise manufacturing process that ensures dimensional accuracy, smooth finishes, and uniform mechanical properties. The alloy is carefully formulated to meet industry standards and is tested for consistency in tensile strength, ductility, and corrosion resistance. The strips are produced in various thicknesses and widths to meet the specific requirements of different applications.

Reliability in Extreme Conditions
The Precision Alloy Strip offers excellent thermal and mechanical stability, making it reliable for use in extreme environments. Whether it's high temperatures or mechanical stress, this alloy maintains its properties, ensuring long-term performance.
High-Performance in Multiple Industries
With versatility across multiple sectors, this precision alloy strip delivers high performance in industries such as aerospace, electronics, automotive, and medical. Its adaptable nature ensures that it meets the unique requirements of each application.
Cost-Effective Solution
By offering excellent mechanical properties and durability, the 3J21 Precision Alloy Strip reduces the need for frequent replacements, making it a cost-effective solution in the long run. Its durability also lowers maintenance costs in high-stress applications.



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


Q1: What is the composition of the Precision Alloy Strip?
A1: The Precision Alloy Strip is primarily made from iron-based or nickel-based alloys, offering high tensile strength, ductility, and excellent thermal stability.
Q2: What industries commonly use this Precision Alloy Strip?
A2: The 3J21 Elastic Alloy Strip is widely used in industries such as aerospace, electronics, medical devices, and automotive, where high performance and precision are required.
Q3: Can the Precision Alloy Strip be customized?
A3: Yes, the Precision Alloy Strip can be customized in terms of thickness, width, and surface finish to meet the specific needs of various applications.
Q4: What are the main advantages of using this precision alloy?
A4: The primary advantages include high tensile strength, excellent ductility, superior thermal stability, and corrosion resistance, making it ideal for a wide range of high-performance applications.
Q5: How do I place an order for the Precision Alloy Strip?
A5: You can contact our sales team via email or phone to place an order. We provide flexible payment terms and can supply free samples for testing, with the buyer covering shipping costs.
Q6: What is the lead time for the Precision Alloy Strip?
A6: The usual lead time for sample orders is 7 days after payment confirmation. Bulk orders may have different lead times depending on quantity and specifications.
Previous article:High Quality 4J29 Kovar Precision Alloy Tube Factory Direct Price