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3004 Aluminum vs. Solder Alloy 704

3004 aluminum belongs to the aluminum alloys classification, while solder alloy 704 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 3004 aluminum and the bottom bar is solder alloy 704.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45 to 83
14
Elastic (Young's, Tensile) Modulus, GPa 70
51
Elongation at Break, % 1.1 to 19
30
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 26
19
Tensile Strength: Ultimate (UTS), MPa 170 to 310
55

Thermal Properties

Latent Heat of Fusion, J/g 400
62
Melting Completion (Liquidus), °C 650
240
Melting Onset (Solidus), °C 630
220
Specific Heat Capacity, J/kg-K 900
220
Thermal Conductivity, W/m-K 160
50
Thermal Expansion, µm/m-K 24
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
13
Electrical Conductivity: Equal Weight (Specific), % IACS 140
15

Otherwise Unclassified Properties

Density, g/cm3 2.8
7.5
Embodied Carbon, kg CO2/kg material 8.3
19
Embodied Energy, MJ/kg 150
320

Common Calculations

Stiffness to Weight: Axial, points 14
3.8
Stiffness to Weight: Bending, points 50
17
Strength to Weight: Axial, points 18 to 31
2.1
Strength to Weight: Bending, points 25 to 37
4.3
Thermal Diffusivity, mm2/s 65
30
Thermal Shock Resistance, points 7.6 to 13
3.5

Alloy Composition

Aluminum (Al), % 95.6 to 98.2
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 0 to 0.25
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.7
0 to 0.020
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 0.8 to 1.3
0
Manganese (Mn), % 1.0 to 1.5
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.3
0
Silver (Ag), % 0
4.8 to 5.2
Tin (Sn), % 0
94.3 to 95.2
Zinc (Zn), % 0 to 0.25
0 to 0.0010
Residuals, % 0 to 0.15
0