Specifications Federal QQ-A-601, ASTM B-26/B-108, SAE 326
Chemical Composition % by weight
Element |
Nominal |
Minimum |
Maximum |
Aluminum |
- |
- |
Remainder |
Silicon |
6.0 |
5.5 |
6.5 |
Copper |
3.5 |
- |
4.0 |
Magnesium |
- |
- |
0.5 |
Zinc |
- |
- |
1.0 |
Typical Applications
Typically used for general-purpose aluminum castings without heat treatment.
Mechanical Properties
Test Bar Values as Sand Cast
Property |
|
As Cast |
Tensile Strength |
ksi |
23.0 |
Yield Strength |
ksi (0.5% Extension Under Load) |
13.0 |
Elongation |
% in 2 inches |
1.5 |
Hardness |
Brinell (500 kg Load) |
55-85 |
Fabrication Practices
Alloy Characteristics: |
“1” being the best |
Corrosion resistance |
3 |
Machinability |
3 |
Polishing |
2 |
Weldability |
2 |
C83600 (115) | C84400 (123) | C90300 (225) | C92300 (235)* | C92200 (245) | C90700 (205) | C92900 (206A)
(319) Aluminum | (356) Aluminum | (535) Almag | C85400 (403) | C86500 (421) | C86300 (424)
C95400 (415C) | C87500 (500-13B) | C89833 (836) | C87850 (Eco Brass)
The values listed above represent reasonable approximations suitable for general engineering use.
Due to commercial variations in composition and to manufacturing limitations, they
should not
be used for specification purposes. See applicable A.S.T.M. specification references.
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