8615824923250
info@lyhsmetal.com
enEnglish

C77000 Copper Nickel Zinc Alloy

C77000 Copper Nickel Zinc Alloy
Details:
C77000 Copper-Nickel-Zinc Alloy is a highly versatile material valued for its silvery appearance, corrosion resistance, and excellent mechanical properties. Its applications range from decorative and architectural uses to industrial and marine components, making it a popular choice across various industries. While it may not offer the same electrical conductivity as pure copper, its combination of aesthetics, durability, and ease of fabrication makes it a cost-effective solution for many applications.
Send Inquiry
Description
Send Inquiry

Product Description

UNS C77000 (CuNi18Zn27) Nickel Silver Alloy, also referred to as Copper-Nickel-Zinc Alloy, is a high-performance material known for its excellent formability, corrosion resistance, and tarnish resistance. This alloy features a distinctive silver-like appearance, making it both aesthetically pleasing and functionally versatile.

 

Commonly known as White Copper or Nickel White Copper, it is a copper-based alloy with nickel as the primary additive element. Its silver-white color and metallic luster give it its name. Copper and nickel form an infinite solid solution, creating a seamless blend that enhances the alloy's properties. This combination results in a material that is not only visually appealing but also highly durable and resistant to environmental degradation.

 

C77000 Copper-Nickel-Zinc Alloy, also known as Nickel Silver or German Silver, is a versatile copper alloy composed primarily of copper, nickel, and zinc. Despite its name, it contains no silver but is valued for its silvery appearance, excellent mechanical properties, and corrosion resistance. Below is a detailed overview of C77000 alloy, including its composition, properties, applications, and advantages.

 

 

Standards and Specifications

C77000 complies with international standards, such as:

  • ASTM B122: Standard specification for copper-nickel-zinc alloy (nickel silver) and copper-nickel plate, sheet, strip, and rolled bar.
  • EN 1652: European standard for copper and copper alloy plate, sheet, and strip.
  • JIS H3110: Japanese industrial standard for phosphor bronze and nickel silver sheets and strips.

 

Chemical Composition

Cu: 53.0-56.00%

Ni: 17.00-19.00%

Fe: 0.25% Max.

Pb: 0.05% Max.

Mn: 0.50% Max.

Zn: Balance

 

Physical Properties

Density

8.7

g/cm3

Electrical conductivity @ 20°C

7

% IACS
 

4

MS/m

Thermal conductivity @20°C

32

W/(m•K)

Specific heat capacity

0.34

J/(g•K)

Modulus of elasticity

135

GPa

Poisson's ratio

0.33

  

Coefficient of

16.7

10-6/ K

 

Properties

  • Silvery Appearance

C77000 has a bright, silvery finish, making it ideal for decorative and aesthetic applications.

  • Corrosion Resistance

Resists tarnishing and corrosion in atmospheric and mild chemical environments.

  • Mechanical Strength

High tensile strength and hardness, suitable for structural applications.

  • Excellent Machinability

Easy to machine, fabricate, and polish, making it a preferred choice for precision components.

  • Good Electrical Conductivity

While not as conductive as pure copper, it still offers reasonable electrical conductivity.

  • Thermal Conductivity

Provides moderate thermal conductivity, suitable for heat exchange applications.

  • Non-Magnetic

Suitable for applications requiring non-magnetic materials.

 

Advantages

  • Aesthetic Appeal: Bright, silvery finish ideal for decorative uses.
  • Durability: Resists tarnishing and corrosion, ensuring long-lasting performance.
  • Versatility: Suitable for both functional and decorative applications.
  • Ease of Fabrication: Can be easily machined, polished, and formed.

 

Forms and Products

C77000 alloy is available in various forms, including:

  • Sheets and Strips
  • Rods and Bars
  • Wires and Tubes
  • Forgings and Fasteners

 

Fabrication and Machining

  • Machining: Use standard machining techniques with appropriate cutting tools.
  • Welding: Compatible with TIG and resistance welding methods.
  • Polishing: Can be polished to achieve a high-gloss finish.

 

Maintenance and Care

  • Cleaning: Use non-abrasive cleaners to maintain the silvery finish.
  • Storage: Store in a dry, clean environment to prevent tarnishing.
  • Inspection: Regularly check for signs of wear or corrosion in industrial applications.

 

Test Equipment

Test Equipment

 

Applications

C77000 alloy is widely used in industries requiring a combination of aesthetic appeal and functional performance, such as:

  • Decorative Applications

Jewelry, tableware, and ornamental items due to its silvery appearance.

  • Electronics

Connectors, terminals, and electrical contacts.

Musical Instruments

Used in wind instruments, such as flutes and saxophones, for its acoustic properties.

  • Architecture

Decorative trims, door handles, and fixtures.

  • Industrial Components

Springs, fasteners, and precision parts requiring high strength and corrosion resistance.

  • Marine Engineering

Components exposed to mild corrosive environments.

 

Contact Us

For more information, samples, or pricing, feel free to contact us! We are committed to providing high-performance C77000 Copper Nickel Zinc Alloy solutions for your advanced applications.

 

Hot Tags: c77000 copper nickel zinc alloy, China c77000 copper nickel zinc alloy manufacturers

You Might Also Like
Send Inquiry