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 The standard, promulgated in 1983, was withdrawn in March 2000.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 |
|
CuAl10Fe5Ni15 |
8.5% - 11.5% |
2.0% - 6.0% |
4.0% - 6.0% |
2.0% max |
0.5% max |