ISO 428
ISO 428 was an International Organization for Standardization (ISO) standard fully entitled "Wrought Copper-Aluminium Alloys -- Chemical Composition And Forms of Wrought Products", specifying the allowable compositions of various copper-aluminum alloy specifications (see aluminium bronze). The standard, promulgated in 1983, was withdrawn in March 2000.
Following is a list of aluminium bronze wrought alloy compositions, by ISO 428 designations (proportional composition by weight; copper is the remainder by weight and is not listed):
| Alloy | Aluminium | Iron | Nickel | Manganese | Zinc | Arsenic |
|---|---|---|---|---|---|---|
| CuAl5 | 4.0% - 6.5% | 0.5% max | 0.8% max | 0.5% max | 0.5% max | 0.4% max |
| CuAl8 | 7.0% - 9.0% | 0.5% max | 0.8% max | 0.5% max | 0.5% max | |
| CuAl8Fe3 | 6.5% - 8.5% | 1.5% - 3.5% | 1.0% max | 0.8% max | 0.5% max | |
| CuAl9Mn2 | 8.0% - 10.0% | 1.5% max | 0.8% max | 1.5% - 3.0% | 0.5% max | |
| CuAl10Fe3 | 8.5% - 11.0% | 2.0% - 4.0% | 1.0% max | 2.0% max | 0.5% max | |
| CuAl10Fe5Ni5 | 8.5% - 11.5% | 2.0% - 6.0% | 4.0% - 6.0% | 2.0% max | 0.5% max |
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