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CU5944 C7521 Copper Alloy Strip/Foil

Catalog No. CU5944
Compositions 64Cu-18Ni-18Zn
UNS No. C7521
Specification Standard ASTM B122/B122M
Shape Strip/Foil

C7521 Copper Alloy Strip/Foil is a silvery white, shiny copper alloy composed of copper, nickel, and zinc, commonly known as "Nickel Silver for springs." Stanford Advanced Materials (SAM) offers exceptional quality C7521 Copper Alloy at highly competitive prices.

Related products: Copper Strip/Foil C1100, 510 Bronze Rolls, C75400 Nickel Silver Tape

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Description
Specification

C7521 Copper Alloy Strip/Foil Description

C7521 Copper Alloy Strip/Foil is a silvery white, shiny copper alloy composed of copper, nickel, and zinc, commonly known as "Nickel Silver for springs." While this alloy can achieve high strength through cold rolling, the elongation decreases as the strength increases. Therefore, high-strength materials made from C7521 are often used for leaf springs where bending is not required.

C7521, also known as Nickel Silver, is a copper-nickel-zinc alloy known for its silver-like appearance and excellent mechanical and corrosion-resistant properties. This alloy is widely used in applications requiring both aesthetic appeal and functional durability.

C7521 Copper Alloy Strip/Foil Specifications

Theoretical Chemical Composition (wt%)

Cu: 64.0

Zn: 18.0

Ni: 18.0

Density (g/cm3)

8.73

Modulus of Elasticity (GPa)

125

Electrical Conductivity (%IACS @20)

6

Poisson's Ratio

0.33

Thickness

≥0.10mm

Width

≥3mm

Mechanical Properties

Tensile Strength (MPa)

O

≥375

1/2H

440-570

H

≥540

Elongation (%)

O

≥20

1/2H

≥5

H

≥3

Vickers Hardness (Hv)

1/2H

120-180

H

≥150

 

C7521 Copper Alloy Strip/Foil Applications

  • Decorative items (e.g., jewelry, musical instruments)
  • Electrical connectors
  • Springs
  • Marine hardware
  • Mechanical components

C7521 Copper Alloy Strip/Foil Packaging

Our C7521 Copper Alloy Strip/Foil is carefully handled during storage and transportation to preserve the quality of our product in its original condition.

FAQs

Q1: What is C7521 copper alloy strip?

C7521, also known as Nickel Silver, is a copper-nickel-zinc alloy known for its silver-like appearance, good mechanical properties, and excellent corrosion resistance. It is widely used in applications that require both aesthetic appeal and durability.

Q2: How is C7521 copper alloy strip typically processed?

  • Cold Working: Enhances mechanical properties through processes like rolling and drawing.
  • Annealing: Enhances ductility and formability, making it easier to handle and shape.
  • Hot Working: Can be hot worked for forming and shaping

Q3: Is C7521 copper alloy strip resistant to corrosion?

Yes, C7521 offers good corrosion resistance, making it suitable for use in various environments, including marine and outdoor applications.

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