C752 Nickel Silver 18% Alloy Wire (CuNi18Zn20)
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Alloy C752 is an 18% nickel silver alloy combining corrosion resistance with strength and a lustrous silver color. Applications include optical frames and parts, springs, surgical instruments, jewelry, resistors and contacts.
Mechanical Properties
Round Wire
| Temper Name | Temper Code | Tensile Strength (N/mm²) | Mill Limits | |
| Min | Max | |||
| Annealed | 365 | 435 | .0254 - 3.264 mm | |
| 1/4 Hard | H01 | 470 | 580 | |
| 1/2 Hard | H02 | 570 | 670 | |
| Hard | H04 | 685 | 765 | |
| Spring | H08 | 725 | 0 | |
Square Wire
| Temper Name | Temper Code | Tensile Strength (N/mm²) | Mill Limits | |
| Min | Max | |||
| Annealed | 365 | 435 | .2540 - 1.905 mm | |
| 1/4 Hard | H01 | 470 | 580 | |
| 1/2 Hard | H02 | 570 | 670 | |
| Hard | H04 | 685 | 765 | |
| Spring | H08 | 725 | 0 | |
Rolled Flat
| Temper Name | Temper Code | Tensile Strength (N/mm²) | Mill Limits | |
| Min | Max | |||
| Annealed | 365 | 435 |
Thickness: Width: .3810 - 6.350 mm |
|
| 1/4 Hard | H01 | 400 | 495 | |
| 1/2 Hard | H02 | 455 | 550 | |
| 3/4 Hard | H03 | 510 | 595 | |
| Hard | H04 | 540 | 625 | |
| Spring | H08 | 620 | 695 | |
Physical Properties
| Melting Point (Liquidis) | 1110°C |
| Melting Point (Solidus) | 1071°C |
| Density | 8.74696 gm/cu cm |
| Electrical Resistivity (Annealed) | 28.76 ?? -cm @ 20°C |
| Electrical Conductivity (Annealed) | 0.03513 MegaSiemens /cm @ 20°C |
| Thermal Conductivity (Solutionized-Aged) | 32.9 W/m · °K @ 20°C |
| Coefficient of Thermal Expansion | 0.0000162°C (20-300°C) |
| Modulus of Elasticity (Tension) | 124100 MPa |
| Modulus of Rigidity | 46900 MPa |
For a full size version of product specifications, including chemical composition in both US and Metric units, please download the PDF.