C7521/C7701 Cupronickel Strip | Low Resistance & Easy Machining | Special Material for Mobile Phone

With a silvery-white luster similar to platinum but at a much lower cost, cupronickel is an ideal choice for jewelry, eyeglass frames, and watch accessories. The 0.3–1.0mm C7521 cupronickel strip delivers a high-brightness finish after polishing, and can be electroplated into gold or silver colors. The necklaces and eyeglass frames made from it are resistant to fading and deformation. Many niche jewelry brands use it as a substitute for silver, cutting costs by half while boosting sales significantly.

• C7521 has a higher copper content, delivering superior ductility and formability.

• C7701 has a slightly higher nickel content, offering more outstanding corrosion resistance and non-magnetic properties.

Core Advantages

1. Full Thickness Coverage: From 0.05mm ultra-thin strips for electronic shielding to 5.0mm thick sheets for structural components, no need to switch materials for different product processing requirements.

2. Excellent Machinability: Compatible with cold rolling, stamping, bending, and welding processes. Plasticity is further enhanced after annealing, enabling precise forming of complex shapes.

3. Compliance with International Standards: Meets GB/T 5231, JIS H3130, and ASTM B122 standards, ensuring smooth export to Europe, America, Japan, South Korea, and other regions.

4. High Cost-Effectiveness: Delivers performance comparable to stainless steel and pure nickel, but at a 30–50% lower price point, significantly reducing production costs in long-term use.