C7701 - UNS C77000 | Nickel Silver

Nonferrous Metals

Copper Alloys

C7701 - UNS C77000 | Nickel Silver

Overview & Features

C7701 is a silvery white, shiny Copper alloy composed of Copper, Nickel and Zinc, also known as "Nickel Silver for springs".
Although high strength can be obtained by cold rolling, elongation decreases as strength increases, so high strength materials are often used for leaf springs without bending.

Available Shapes

Standards are listed as equivalent or similar to our materials, so please use them as a reference.

JIS

C7701 (H3130)

UNS/CDA

C77000

[Composition] CuNi18Zn27
JIS standard value of chemical composition is shown in the table below.

Density

8.70 g/cm³

Specific Heat

377 J/(kg・K)

Electrical Resistivity

30 μΩ・cm

Young's Modulus

127 GPa

Thermal Expansion

16.7×10-6/K

Thermal Conductivity

29 W/(m・K) (25℃)

Melting Point

1050 ℃

Magnetism

Non-magnetism

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