C260 Cartridge Brass Alloy Wire (CuZn30)
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Alloy C260 is commonly used for electrical components, electronic parts, and mechanical fasteners. The alloy has good strength but poor stress relaxation characteristics and does not make a particularly good spring material. Although it has good conductivity, the solderability of the alloy is severely impaired by its high zinc content.
Mechanical Properties
Round Wire
| Temper Name | Temper Code | Tensile Strength (N/mm²) | Mill Limits | |
| Min | Max | |||
| 1/8 Hard | H00 | 345 | 450 | .0254 - 3.264 mm |
| 1/4 Hard | H01 | 425 | 530 | |
| 1/2 Hard | H02 | 545 | 650 | |
| 3/4 Hard | H03 | 635 | 740 | |
| Hard | H04 | 705 | 805 | |
| Extra Hard | H06 | 795 | 890 | |
| Spring | H08 | 830 | ||
Square Wire
| Temper Name | Temper Code | Tensile Strength (N/mm²) | Mill Limits | |
| Min | Max | |||
| 1/8 Hard | H00 | 345 | 450 | .2540 - 1.905 mm |
| 1/4 Hard | H01 | 425 | 530 | |
| 1/2 Hard | H02 | 545 | 650 | |
| 3/4 Hard | H03 | 635 | 740 | |
| Hard | H04 | 705 | 805 | |
| Extra Hard | H06 | 795 | 890 | |
| Spring | H08 | 830 | ||
Rolled Flat
| Temper Name | Temper Code | Tensile Strength (N/mm²) | Mill Limits | |
| Min | Max | |||
| 1/4 Hard | H01 | 340 | 405 |
Thickness: Width: |
| 1/2 Hard | H02 | 395 | 460 | |
| 3/4 Hard | H03 | 440 | 510 | |
| Hard | H04 | 490 | 560 | |
| Extra Hard | H06 | 570 | 635 | |
| Spring | H08 | 625 | 690 | |
Physical Properties
| Melting Point (Liquidis) | 954°C |
| Melting Point (Solidus) | 916°C |
| Density | 8.52552 gm/cu cm |
| Electrical Resistivity (Annealed) | 6.151 ?? -cm @ 20°C |
| Electrical Conductivity (Annealed) | 0.16392 MegaSiemens /cm @ 20°C |
| Thermal Conductivity (Solutionized-Aged) | 121.2105 W/m · °K @ 20°C |
| Coefficient of Thermal Expansion | 2E-05°C (20-300°C) |
| Modulus of Elasticity (Tension) | 110300 MPa |
| Modulus of Rigidity | 41400 MPa |
For a full size version of product specifications, including chemical composition in both US and Metric units, please download the PDF.