Copper Alloys
18% Nickel Silver
| Application & Characteristics | |
|---|---|
| Good resistance to oxidizing acids and humid, salty atmospheres. Tubular parts for musical instruments, cameras and marine hardware. | |
| Chemical Composition (%) | |
| Cu 65; Zn 17; Ni 18 | |
| Physical Properties | |
| Melting Range (°F) | 1960 2030 |
| Density (lbs/in³) 68F | 0.316 |
| Thermal Expansion (in/in °Fx10 to the power of -6) | 9 |
| Electrical Resistivity (ohms/cir mil/ft.) 68F | 173 |
| Mechanical Properties Temper = A | |
| Tensile Strength (psi x 10³) | 58 |
| Yield Strength (psi x 10³) | 25 |
| Elongation ( % ) | 40 |
| Hardness | B40(Rockwell) |
| Mechanical Properties Temper = H/2 | |
| Tensile Strength (psi x 10³) | 78 |
| Yield Strength (psi x 10³) | 60 |
| Elongation ( % ) | 14 |
| Hardness | B78(Rockwell) |
| Mechanical Properties Temper = H | |
| Tensile Strength (psi x 10³) | 94 |
| Yield Strength (psi x 10³) | 74 |
| Elongation ( % ) | 3 |
| Hardness | B87(Rockwell) |
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