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Aluminum 4045
Categories: Metal; Nonferrous Metal; Aluminum Alloy; 4000 Series Aluminum Alloy

Material Notes: Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN.

Composition Notes:
Composition information provided by the Aluminum Association and is not for design.

Key Words: UNS A94045; Aluminium 4045; AA4045; Al4045
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Physical PropertiesMetricEnglishComments
Density 2.67 g/cc0.0965 lb/in³AA; Typical
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000382 ohm-cm
@Temperature 20.0 °C
0.00000382 ohm-cm
@Temperature 68.0 °F
AA; Typical
 
Thermal PropertiesMetricEnglishComments
CTE, linear 21.1 µm/m-°C
@Temperature 20.0 - 100 °C
11.7 µin/in-°F
@Temperature 68.0 - 212 °F
AA; Typical; average over range
Thermal Conductivity 171 W/m-K1190 BTU-in/hr-ft²-°FAA; Typical at 77°F
Melting Point 573.9 - 599 °C1065 - 1110 °FAA; Typical range based on typical composition for wrought products >= 1/4 in. thickness
Solidus 573.9 °C1065 °FAA; Typical
Liquidus 599 °C1110 °FAA; Typical
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 87.3 - 91 %87.3 - 91 %As remainder
Copper, Cu <= 0.30 %<= 0.30 %
Iron, Fe <= 0.80 %<= 0.80 %
Magnesium, Mg <= 0.05 %<= 0.05 %
Manganese, Mn <= 0.05 %<= 0.05 %
Other, each <= 0.05 %<= 0.05 %
Other, total <= 0.15 %<= 0.15 %
Silicon, Si 9.0 - 11 %9.0 - 11 %
Titanium, Ti <= 0.20 %<= 0.20 %
Zinc, Zn <= 0.10 %<= 0.10 %

References for this datasheet.

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MA4045 / 9090

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