C77000 Copper Nickel Zinc Strip

Product Description

UNS C77000 (CuNi18Zn27), commonly referred to as Nickel Silver or Copper-Nickel-Zinc Alloy, is a versatile material known for its excellent formability, corrosion resistance, and tarnish resistance. This alloy, with its attractive silver-like appearance, is widely used in applications where both functionality and aesthetics are important.

Nickel Silver, also called White Copper, is a copper-based alloy primarily composed of copper, nickel, and zinc. Its distinctive silver-white color and metallic luster make it a popular choice for decorative and functional purposes. The unique property of copper and nickel to form a continuous solid solution contributes to the alloy's exceptional performance and durability.

 

 

Standards and Specifications

• ASTM B122: Standard specification for copper-nickel-tin and copper-nickel-zinc alloys.
• UNS C77000: Unified Numbering System designation.
• EN 1652: European standard for copper and copper alloy strip for general purposes.

 

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 of C77000 Copper-Nickel-Zinc Strip

• Corrosion Resistance

Highly resistant to corrosion in seawater, brackish water, and marine environments.

Performs well in acidic and alkaline conditions, making it suitable for chemical processing applications.

• Strength and Durability

Offers high tensile strength and excellent fatigue resistance.

Maintains mechanical properties at both high and low temperatures.

• Wear Resistance

Exhibits good wear resistance, making it ideal for applications involving friction or mechanical stress.

• Aesthetic Appeal

Has a silvery appearance, often used in decorative applications.

Resists tarnishing, maintaining its appearance over time.

 

Formability and Fabrication

• Can be easily formed, stamped, and fabricated into complex shapes.
• Suitable for welding, brazing, and soldering with proper techniques.

 

Advantages of C77000 Alloy

• Superior resistance to biofouling and marine corrosion.
• Excellent thermal and electrical conductivity.
• Long service life with minimal maintenance.
• Environmentally friendly and recyclable.

 

Test Equipment

 

Applications of C77000 Copper-Nickel-Zinc Strip

• Marine Engineering

Used in condenser tubes, heat exchangers, and seawater piping systems.

• Electronics:

Ideal for connectors, springs, and terminals due to its electrical conductivity and corrosion resistance.

• Coinage

Commonly used in the production of coins and tokens.

• Decorative Applications

Used in architectural trim, jewelry, and decorative hardware due to its attractive finish.

• Industrial Equipment

Employed in pump components, valves, and fasteners exposed to corrosive environments.

 

Contact Us

C77000 copper-nickel-zinc strips are a versatile and reliable material for demanding applications, particularly in marine and industrial environments. If you need further details or specific technical data, feel free to Contact us!

 

Hot Tags: c77000 copper nickel zinc strip, China c77000 copper nickel zinc strip manufacturers, Ultra Thin Copper Foil, , C78200 Copper Alloy Bar, C75200 Copper Strip, C76400 Copper Strip