| GB | ISO | ASTM | JIS |
| QAl5 | CuAl5 | C60800 | C5102 |
| QAl7 | CuAl7 | C61000 | - |
| GB | Chemical Comosition(%) | ||||||||
| Sn | Al | Zn | Mn | Fe | Pb | Ni | Si | Cu | |
| QAl5 | 0.1 | 4.0-6.0 | 0.5 | 0.5 | 0.5 | 0.03 | 0.5 | 0.1 | Balance |
| QAl7 | - | 6.0-8.5 | 0.2 | - | 0.5 | 0.02 | 0.5 | 0.1 | Balance |
| Grade | Upper critical point temperature/℃ | coefficient of linear expansion(20℃) ɑ/10-6 | thermal conductivity/λ/W·(m·K)-1 | electrical resistivity under 20℃ ρ/Ω·mm2·m-1 |
| QAl5 | 1060 | 18 | 104.7 | 0.1 |
| QAl7 | 1040 | 17.8 | 79.5 | 0.11 |
| Grade | temperature coefficient of resistance ɑ(20-100℃) |
Heat processing temperature/℃ |
annealing temperature/℃ | machinability/% |
| QAl5 | 0.0016 | 830-880 | 600-700 | 20 |
| QAl7 | 0.001 | 830-880 | 650-750 | 20 |
