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Copper-Nickel-Zinc Alloy

What is Copper-Nickel-Zinc Alloy (Nickel Silver / German Silver)?

Copper-Nickel-Zinc Alloy is a highly versatile non-ferrous material. The global metallurgy market often calls it 'Nickel Silver' or 'German Silver'. It earns this name from its brilliant metallic luster, despite containing no actual elemental silver. This unique material combines a copper base with nickel to enhance strength and corrosion resistance. The addition of zinc optimizes fluidity, structural integrity, and overall cost-efficiency.

This alloy is known for its exceptional tarnish resistance, high elasticity, and superior cold-workability. It also delivers excellent acoustic and thermal damping characteristics. These premium attributes make it indispensable for high-precision components and decorative installations. It thrives in challenging industrial environments where standard brass or bronze alloys fall short.

Copper-Nickel-Zinc Alloy Specifications & Available Product Forms

To meet diverse international manufacturing demands, we supply this premium alloy in several shapes and custom dimensions. Our close relationships with tier-1 Chinese mills ensure precise dimensional tolerances. We also deliver customized mechanical properties tailored to your specific fabrication needs.

Product FormStandard Thickness / Diameter RangeStandard Width / Dimension RangeAvailable Tempers
Strips & Coils0.05 mm – 3.0 mm5.0 mm – 610 mmSoft Annealed (O), 1/4 Hard, 1/2 Hard, Hard (H), Spring Hard, Extra Spring Hard
Sheets & Plates0.5 mm – 50.0 mmUp to 1000 mm (Length up to 3000 mm)Annealed, Half Hard, Full Hard
Precision Foils0.01 mm – 0.05 mm (Ultra-thin)Up to 300 mmCustom Annealed / Hard
Wires & Rods0.1 mm – 15.0 mmCustom Lengths & SpoolsHard, Spring Temper

Copper-Nickel-Zinc Alloy Strips & Coils

Our strip and coil products are highly optimized for high-speed automated stamping and continuous forming processes. We maintain exceptionally tight thickness tolerances and offer custom tension leveling. This guarantees flatness and prevents feed disruptions during manufacturing. Whether you are producing spring connectors or complex shielding components, our precision coils deliver uniform material behavior.

Nickel Silver Sheets & Plates

For applications demanding larger flat surfaces and structural integrity, we offer high-grade sheet and plate options. These products feature superior flatness tolerances. They are available in multiple surface finishes, including standard mill finish and high-luster polished variants. They are easily sheared, laser-cut, or deep-drawn for architectural elements, musical instrument bodies, and robust mechanical structures.

Precision Foils & Wires

To support high-precision electronics, aerospace, and medical R&D, we supply ultra-thin copper alloy foil down to micron levels. Additionally, our high-elasticity wire products are available in both round and flat shapes. They offer excellent fatigue resistance and electrical conductivity for custom-engineered spring contacts and micro-connectors.

International Standard Grades of Copper-Nickel-Zinc Alloy

Ensuring compliance with international engineering standards is vital for seamless global supply chains. Our inventory and custom production runs adhere to rigorous global specifications including ASTM B122, ASTM B111, and ASTM B171. Below is a comprehensive cross-reference guide of the major commercial grades we supply:

US Standard (UNS / CDA)Chinese Standard (GB)European Standard (EN / DIN)Japanese Standard (JIS)Nominal Composition (wt. %)Key Material Properties
UNS C75200BZn18-18CuNi18Zn20JIS C752165% Cu, 18% Ni, 17% ZnStandard 18% nickel silver with excellent cold-workability, high corrosion resistance, and a beautiful bright silver color.
UNS C77000BZn18-26CuNi18Zn27JIS C770155% Cu, 18% Ni, 27% ZnHigh-elasticity grade. Extremely resilient with high tensile strength, making it ideal for spring-loaded components.
UNS C75700BZn15-20CuNi15Zn21JIS C754165% Cu, 15% Ni, 20% ZnExcellent deep drawing characteristics and high ductility, perfectly suited for hollowware and formed industrial parts.

Custom Processing & Precision Cutting Services

At Hangzhou Target, we understand that standard metal dimensions do not always match complex manufacturing designs. That is why we offer comprehensive, professional B2B custom slitting and precision cutting services. By utilizing advanced slitting machinery, we process master coils into custom-width tapes and strips. These ultra-narrow tolerances help reduce material waste at your facility.

Beyond simple cutting, our processing partners offer extensive fabrication capabilities including punching, bending, pressing, and wire-cutting. We also offer professional surface finishing such as polishing, etching, and specialized anodizing. Furthermore, our custom mold development capabilities allow us to create unique profiled shapes. We can deliver extruded designs tailored exactly to your proprietary engineering blueprints.

Key Industrial Applications of Nickel Silver Alloys

Copper-Nickel-Zinc Alloy is used globally across a variety of demanding fields. This widespread use is due to its brilliant aesthetic appeal, spring-like properties, and high environmental resistance.

  • Electronics & Telecommunications: It is widely used in RF shielding cans, spring contacts, switches, and telecommunication connectors. This relies on its stable solderability, oxidation resistance, and reliable elasticity.
  • Precision Instruments & Medical Devices: The material's low friction coefficient and high wear resistance make it perfect for mechanical watch gears, optical frames, surgical tools, and custom control valves.
  • Decorative & Musical Applications: Renowned for its acoustic dampening and classic silver appearance, it is the premier choice for manufacturing flutes, saxophones, marine fittings, cutlery, and commemorative coinage.

Hangzhou Target: Your Strategic Copper-Nickel-Zinc Alloy Supplier

As a leading B2B supplier and exporter of non-ferrous metal materials, Hangzhou Target Import & Export Co., Ltd. provides comprehensive procurement solutions. We integrate strategic factory sourcing, custom cutting, global logistics, and warehousing. This single-provider approach eliminates the complexities of managing multiple vendors.

We have established deep, long-term partnerships with China's top-tier non-ferrous metal processing factories, including large-scale state-owned enterprises. This ensures that every batch of material we export maintains stable, uniform quality. Every shipment is fully certified and backed by rigorous testing documentation, including SGS, BV, ROHS, MSDS, and REACH reports.

With flexible order support for specialized testing runs and custom-scheduled warehouse storage, we are the ideal Copper-Nickel-Zinc Alloy supplier to support your production goals. Contact us today to receive a competitive quote or discuss your custom dimensional requirements.

Frequently Asked Questions (FAQ)

What is the primary difference between Copper-Nickel-Zinc alloy and other copper alloys like brass or bronze?

While brass is primarily a copper-zinc mixture and bronze is a copper-tin alloy, Copper-Nickel-Zinc alloy introduces a significant percentage of nickel. This addition changes the material's color from golden to a bright, silver-like finish. It also drastically improves tarnish resistance, tensile strength, and spring-like elasticity compared to standard brasses.

What standard grades of Nickel Silver does Hangzhou Target supply?

We supply a broad selection of global standard grades, including UNS C75200 (BZn18-18), C77000 (BZn18-26), and C75700. All of our materials strictly comply with ASTM B122, ASTM B111, JIS C7521, and comparable European specifications. This ensures complete engineering compatibility for your manufacturing projects.

Does Hangzhou Target offer customized slitting for ultra-thin Nickel Silver foil and strips?

Yes, we specialize in custom slitting and precision cutting. We can cut master coils into ultra-thin copper alloy foil and narrow-width strips. We maintain extremely tight tolerances so the material is ready for direct integration into your automated stamping or forming machinery.

How does your company guarantee the quality and compliance of exported metal materials?

We work exclusively with certified Chinese metal manufacturers and state-owned enterprises following strict quality control protocols. Every delivery includes comprehensive Mill Test Certificates (MTC). Furthermore, shipments are fully supported by third-party documentation, including SGS, BV, ROHS, MSDS, and REACH compliance certifications.

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