Our 3J21 Cobalt-Chromium-Nickel Alloy Plate is a powerhouse for heavy-duty elastic components, delivering the strength and elasticity needed for demanding systems. Whether you’re crafting springs for aerospace actuators or diaphragms for industrial machinery, this alloy plate is engineered to handle the toughest challenges. Let’s dive into what makes 3J21 special, explore its applications, check out industry trends, and show why our company is your top supplier for this high-performance material.
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The 3J21 Cobalt-Chromium-Nickel Alloy Plate, also known as Elgiloy, is designed for heavy-duty elastic components. Its cobalt-based composition, with chromium, nickel, and molybdenum, provides superelasticity, high strength, and excellent corrosion resistance, performing reliably from -60°C to +200°C. Processed through cold-rolling and heat treatment, this plate offers a high strength-to-weight ratio and exceptional fatigue resistance. With a low thermal expansion coefficient (10–12 × 10⁻⁶/°C), density of ~8.3 g/cm³, and electrical resistivity of ~1.0 μΩ·m, it’s ideal for heavy-duty applications.
We provide 3J21 alloy plates in various dimensions and thicknesses, with customizable compositions to meet your specific requirements, ensuring they’re ready for your elastic component projects.
| Grades | Density (g/cm³) | Electrical Resistivity (10⁻⁶ Ω·cm) | Thermal Conductivity (W/m·K) | Modulus of Elasticity (GPa) | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation at Break (%) | Elastic Limit (MPa) | Fatigue Life (cycles) | Working Temperature Range (°C) | Temperature Coefficient |
| 8.1 | 80 | 11 | 144 | 800 | 1000 | 10 | 800 | >10⁷ | -60 to 200 | Extremely low temperature coefficient of elasticity | |
| 8.3 | 120 | 40 | 125 | 300 | 600 | 20 | 300 | >10⁷ | -40 to 150 | Elasticity remains constant with minimal temperature sensitivity | |
| 8.2 | 100 | 15 | 180 | 1100 | 1400 | 5 | 1100 | >10⁶ | -200 to 500 | Maintains high strength even at elevated temperatures |
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The market for high-performance alloys like 3J21 is booming, driven by demand in aerospace, industrial machinery, and medical sectors. The global specialty alloy market is projected to grow through 2030, fueled by advancements in manufacturing and the need for materials that can handle high-stress conditions. Heavy-duty elastic components like springs and diaphragms are critical, requiring alloys with exceptional strength and durability.
Customization is a key trend—engineers want materials tailored to specific performance needs. Sustainability is also a focus, with industries seeking durable alloys to reduce maintenance costs. The rise of advanced aerospace systems and industrial automation is increasing demand for reliable components, where 3J21 excels. Production costs can be a challenge, but our optimized processes keep costs competitive while maintaining quality.
Applications of 3J21 Alloy Plate
Our 3J21 alloy plate excels in:
Aerospace: Powers springs and diaphragms in actuators and sensors.
Industrial Machinery: Supports heavy-duty elastic components in equipment.
Medical Devices: Used in biocompatible components like stents.
Automotive: Powers springs in safety and fuel systems.
Precision Instrumentation: Supports elastic components in gauges and balances.
Electronics: Resists arc erosion in relays and switches.
Marine Applications: Performs in corrosive saline environments.
Energy: Supports components in renewable energy systems.
These applications highlight why 3J21 is a trusted choice for heavy-duty elastic components.
Company Comparison and Our Advantages
We’re committed to delivering 3J21 alloy plates that outperform in demanding applications. Here’s why we stand out:
Tailored Solutions: We customize plate dimensions, thickness, and composition to fit your needs.
Rigorous Quality Control: ISO and ROHS certified, with COA-backed samples.
Advanced Processing: Our cold-rolling and heat-treatment maximize strength.
Low MOQ, Great Pricing: Start with small quantities at factory-direct prices.
Fast Delivery: Ample stock and efficient production ensure quick turnaround.
Expert Support: Our alloy specialists guide you through material selection.
Eco-Friendly Focus: Our durable plates support sustainable designs.
Compared to standard suppliers, our focus on customization, quality, and speed makes us the ideal partner for your elastic component projects.
Comparison Parameters Table
Parameter | 3J21 Alloy Plate | Generic Co-Based Alloy Plate |
|---|---|---|
Elastic Modulus | Superelastic, stable to +200°C | Moderate, less stable |
Corrosion Resistance | Excellent (acids, saline) | Good, less resistant to acids |
Thermal Expansion Coefficient | Low (10–12 × 10⁻⁶/°C) | Higher, less consistent |
Tensile Strength | Very high (post-treatment) | Moderate, varies by grade |
Processing | Cold-rolled + heat-treated | Basic rolling, less refined |
Fatigue Resistance | High | Moderate |
Applications | Heavy-duty elastic components | General plates, limited strength |
Customization Options | Extensive (size, composition) | Limited |
Our 3J21 Cobalt-Chromium-Nickel Alloy Plate is built for heavy-duty elastic components that demand reliability. Its superelasticity, corrosion resistance, and customizability make it a top choice for industries where performance is critical. With our commitment to quality and support, you’re getting a product that’s ready to power your success. Let’s make your next project a win with 3J21!
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About Us:
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.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.
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FAQs:
What is 3J21 Cobalt-Chromium-Nickel Alloy Plate used for?
Ideal for heavy-duty elastic components, such as springs and diaphragms in aerospace and industrial systems.What are the key properties of 3J21 Alloy Plate?
Superelasticity, high strength, and excellent corrosion resistance from -60°C to +200°C.Which industries benefit from 3J21 Alloy Plate?
Aerospace, industrial machinery, medical devices, and automotive.How does 3J21 perform in high-stress environments?
It resists corrosion and maintains elasticity in demanding conditions.Can 3J21 Alloy Plate be customized?
Yes, we offer custom dimensions, thicknesses, and compositions to meet your project needs.Why is 3J21 ideal for heavy-duty components?
Its cobalt-based composition ensures exceptional strength and fatigue resistance.How is 3J21 Alloy Plate processed?
Cold-rolled and heat-treated for maximum strength and elasticity.What benefits does 3J21 offer for elastic components?
High strength-to-weight ratio and stability ensure reliable performance in heavy-duty systems.
