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 The standard, promulgated in 1983, was withdrawn in March 2000.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):
|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|
Aluminium bronze is a type of bronze in which aluminium is the main alloying metal added to copper, in contrast to standard bronze (copper and tin) or brass (copper and zinc). A variety of aluminium bronzes of differing compositions have found industrial use, with most ranging from 5% to 11% aluminium by weight, the remaining mass being copper; other alloying agents such as iron, nickel, manganese, and silicon are also sometimes added to aluminium bronzes.List of International Organization for Standardization standards, 1-4999
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