Addendo Sn, Ni, et alia parva elementa ad cuprum ut matrix, dat illud magnam vim, elasticitatem, et praestantem relaxationem stressis performance. Commune in lead frames, automobilium terminis, connectoribus etc. usus est.
| Gradus | Compositio chemica (% ) ≤ | Crassitudo (mm) |
|||||
| ASTM | Cu | Sn | Ni | P | Zn | Alium | 0.1-3.0 |
| C19040 | RESPONDEO | 1.0-2.0 | 0.7-0.9 | 0.02-0.09 | 0.01-0.3 | ≤1.0 | |
| Proprietates physicae | |||||||
| Densitas (g/cm³) |
Modulus Elasticitatis (GPa) |
Coeficientis Expansionis Thermalis (×10-6/K) |
Conductivitas Electrifica (%IACS) |
Scelerisque Conductivity W(m·K) |
|||
| 8.9 | 130 | 17 | 30 | 140 | |||
| Proprietates mechanicæ | Proprietates curvandi | |||||
| Temperamentum | Dureza HV |
Testatio Tensionis | 90°R\/T(Crassus＜0.8mm) | |||
| Robur Tensile Rm\/MPa |
Robur Renditionis MPa |
Tentio % |
Bonus modus | Via mala | ||
| H04 | 155-180 | 500-590 | 480-565 | ≥8 | 0 | 0.5 |
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