C18665 Llain Efydd Copr ar gyfer Deunyddiau Ffrâm
| GB | ASTM | Cyfansoddiad Cemegol(%) | |
| Mg | Cu | ||
| TMg0.5 | C18665 | 0.4-0.7 | 99.8 |
| Gradd | Tymher | Cryfder tynnol Rm/N(mm) | Elongation A11.3% | Caledwch | |
| GB | ASTM | ||||
| TMg0.5 | C18665 | 0 | dim llai na 390 | dim llai na25 | dim llai na 100 |
| H01 | 365-450 | dim llai na 15 | 90-140 | ||
| H02 | 420-510 | dim llai na 10 | 120-170 | ||
| H04 | 480-570 | dim llai na7 | 150-190 | ||
| H06 | 540-630 | dim llai na5 | 170-210 | ||
| H08 | dim llai na 590 | - | dim llai na 180 | ||
Amser postio: Hydref-28-2020