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Aluminum 3105-H18
Categories: Metal; Nonferrous Metal; Aluminum Alloy; 3000 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 A93105; ISO AlMn0.5Mg0.5; Aluminium 3105-H18; AA3105-H18; Al3105-H18
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Physical PropertiesMetricEnglishComments
Density 2.72 g/cc0.0983 lb/in³AA; Typical
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 5858500 kg load with 10 mm ball. Calculated value.
Hardness, Knoop 8181Converted from Brinell Hardness Value
Tensile Strength, Ultimate 214 MPa31000 psiAA; Typical
Tensile Strength, Yield 193 MPa28000 psiAA; Typical
Elongation at Break 3.0 %
@Thickness 1.59 mm
3.0 %
@Thickness 0.0625 in
AA; Typical
Modulus of Elasticity 68.9 GPa10000 ksiAA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poissons Ratio 0.330.33
Machinability 30 %30 %0-100 Scale of Aluminum Alloys
Shear Modulus 25.0 GPa3630 ksi
Shear Strength 117 MPa17000 psiAA; Typical
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000382 ohm-cm
@Temperature 20.0 °C
0.00000382 ohm-cm
@Temperature 68.0 °F
AA; Typical
Magnetic Susceptibility 7.0e-77.0e-7cgs/g at 20ºC
 
Thermal PropertiesMetricEnglishComments
CTE, linear  21.8 µm/m-°C
@Temperature -50.0 - 20.0 °C
12.1 µin/in-°F
@Temperature -58.0 - 68.0 °F
 23.6 µm/m-°C
@Temperature 20.0 - 100 °C
13.1 µin/in-°F
@Temperature 68.0 - 212 °F
AA; Typical; average over range
 24.5 µm/m-°C
@Temperature 20.0 - 200 °C
13.6 µin/in-°F
@Temperature 68.0 - 392 °F
 25.5 µm/m-°C
@Temperature 20.0 - 300 °C
14.2 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.897 J/g-°C0.214 BTU/lb-°F
Thermal Conductivity 171 W/m-K1190 BTU-in/hr-ft²-°FAA; Typical at 77°F
Melting Point 635.0 - 654 °C1175 - 1210 °FAA; Typical range based on typical composition for wrought products >= 1/4 in. thickness
Solidus 635.0 °C1175 °FAA; Typical
Liquidus 654 °C1210 °FAA; Typical
 
Processing PropertiesMetricEnglishComments
Annealing Temperature 343 °C650 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al <= 95.9 %<= 95.9 %As remainder
Chromium, Cr <= 0.20 %<= 0.20 %
Copper, Cu <= 0.30 %<= 0.30 %
Iron, Fe <= 0.70 %<= 0.70 %
Magnesium, Mg 0.20 - 0.80 %0.20 - 0.80 %
Manganese, Mn 0.30 - 0.80 %0.30 - 0.80 %
Other, each <= 0.05 %<= 0.05 %
Other, total <= 0.15 %<= 0.15 %
Silicon, Si <= 0.60 %<= 0.60 %
Titanium, Ti <= 0.10 %<= 0.10 %
Zinc, Zn <= 0.40 %<= 0.40 %

References for this datasheet.

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