Hardeners are Aluminum Master Alloys with one or more alloying elements.
Type of Alloy
|
Composition
|
Sb-Al
|
5% Sb
|
Bi-Al
|
2%, 8% Bi
|
Cr-Al
|
5%, 10% Cr
|
Fe-Al
|
15%, 25% Fe
|
Mg-Al
|
10%, 25% Mg
|
Mn-Al
|
5%, 10% Mn
|
Ni-Al
|
10%, 25% Ni
|
Si-Al
|
20%,30%, 50% Si
|
Zr-Al
|
5% Zr
|
Hardeners melt at lower temperature as compared to primary metals. Controlled addition of hardeners makes it easier to produce the final alloy of consistent composition, in lesser time.
|