Aluminum, Al

Delta Fastener Corp. can provide a wide variety of aluminum fasteners including; aluminum nuts, aluminum bolts, sockets, washers and more in aluminum fasteners. If we do not have your aluminum fasteners in stock (Inch or Metric) we can have these manufactured to your specification.

Material Notes

Aluminum is a silver-colored, low density (2.7 g/cc) metal that finds use in a huge variety of commercial applications. Unalloyed aluminum is ductile, exhibits moderate strength, and is very resistant to corrosion under most circumstances. Aluminum can be dramatically strengthened by the addition of appropriate alloying elements (Cu, Mg, Mn, Si, etc.) and subsequent heat/work treatments. Aluminum is commonly used in both wrought and cast forms.

The low density of aluminum results in its extensive use in the aerospace industry, and in other transportation fields. Its resistance to corrosion leads to its use in food and chemical handling (cookware, pressure vessels, etc.) and to architectural uses.

Over 1250 Aluminum alloy entries are listed in MatWeb. Aluminum 1199 is the highest purity (99.99% Al min.) commercially available in structural form.

Physical Properties Metric English Comments
Density 2.6989 g/cc 0.097504 lb/in³
Chemical Properties Metric English Comments
Atomic Number 13 13
Thermal Neutron Cross Section 0.215 barns/atom 0.215 barns/atom
X-ray Absorption Edge 7.9511 Å 7.9511 Å K
142.48 Å 142.48 Å LI
172.16 Å 172.16 Å LII
172.16 Å 172.16 Å LIII
Electrode Potential -1.69 V -1.69 V
Electronegativity 1.61 1.61 Pauling
Ionic Radius 0.510 Å 0.510 Å Crystal Ionic Radius for Valence +3
Electrochemical Equivalent 0.3354 g/A/h 0.3354 g/A/h
Mechanical Properties Metric English Comments
Hardness, Vickers 15.0 15.0 Annealed
Modulus of Elasticity 68.0 GPa 9860 ksi
Poissons Ratio 0.360 0.360 calculated
Shear Modulus 25.0 GPa 3630 ksi
Electrical Properties Metric English Comments
Electrical Resistivity 0.00000270 ohm-cm 0.00000270 ohm-cm
Magnetic Susceptibility 6.00e-7 6.00e-7 cgs/g
Critical Magnetic Field Strength, Oersted 101.9 - 107.9 101.9 - 107.9
Critical Superconducting Temperature 1.73 - 1.77 K 1.73 - 1.77 K
Thermal Properties Metric English Comments
Heat of Fusion 386.9 J/g 166.4 BTU/lb
Heat of Vaporization 9462 J/g 4071 BTU/lb
CTE, linear 24.0 µm/m-°C
@Temperature 20.0 - 100 °C
13.3 µin/in-°F
@Temperature 68.0 - 212 °F
25.5 µm/m-°C
@Temperature 20.0 - 300 °C
14.2 µin/in-°F
@Temperature 68.0 - 572 °F
27.4 µm/m-°C
@Temperature 20.0 - 500 °C
15.2 µin/in-°F
@Temperature 68.0 - 932 °F
Specific Heat Capacity 0.900 J/g-°C 0.215 BTU/lb-°F
Thermal Conductivity 210 W/m-K 1460 BTU-in/hr-ft²-°F
Melting Point 660.37 °C 1220.7 °F
Optical Properties Metric English Comments
Emissivity (0-1) 0.0500 0.0500 polished 50-500°C
0.200 - 0.300 0.200 - 0.300 strongly oxidized
Reflection Coefficient, Visible (0-1) 0.900 0.900 tungsten light
Component Elements Properties Metric English Comments
Aluminum, Al 100 % 100 %
Descriptive Properties
CAS Number 7429-90-5

Information provided by MatWeb

Disclaimer: The dimensions listed are for reference only. Sizes not listed may be available off the shelf or can be manufactured to customer requirements.