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770
770 Nickel Silver Product Guide
Applications | Specifications | Mechanical and Chemical Data | Tolerances
Overview
Nickel Silver is neither nickel, nor silver, it’s mostly copper and zinc, though with some nickel alloyed as well. It’s also often called German Silver for historical reasons, but again, it’s not silver, and was not discovered by Germans. 770 nickel silver has good strength, a silvery appearance, and excellent resistance to corrosion and tarnish. 770 has exceptional solderability and good electrical conductivity. It is typically used for decorative and ornamental applications.
Common Trade Names
UNS C77000, CDA 770, C770, Albata, Alpacca, Argentann, German Silver, New Silver, Nickel Brass
Other Resources
Weight Calculator | Mill Test Reports
Products
Applications
- Ornamental applications
Specifications
ASTM |
|---|
| B122 |
| Physical Properties 770 | |||||
| -H02 | |||||
|---|---|---|---|---|---|
| Density | 0.314 lb/in3 | ||||
| Ultimate Tensile Strength | 78-95 ksi | ||||
| Yield Tensile Strength | 46-93 ksi | ||||
| Shear Modulus | 6,700 ksi | ||||
| Hardness Rockwell | Brinell | B87 | 170 | ||||
| Elongation at Break Percentage | 5-24% | ||||
| Modulus of Elasticity | 18,000 ksi | ||||
| Poisson's Ratio | 0.31 | ||||
| Machinability Percentage | 30% | ||||
| Melting Point | 1,840-1,930 °F | ||||
| Specific Heat | 9.08 x 10^-2 BTU/lb-°F | ||||
| Thermal Conductivity | 204 BTU-in/hr-ft^2-°F | ||||
| Electrical Conductivity | 5.5% IACS | ||||
|
Chemistry Information
|
|
Element |
Percentage |
| Cu | 53.5 - 56.5 |
| Fe | 0.25 max |
| Pb | 0.1 max |
| Mn | 0.5 max |
| Ni | 16.5 - 19.5 |
| Zn | 27 |
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