4343 Aluminum vs. 4104 Aluminum
Both 4343 aluminum and 4104 aluminum are aluminum alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 96% of their average alloy composition in common.
For each property being compared, the top bar is 4343 aluminum and the bottom bar is 4104 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 71 | |
71 |
Elongation at Break, % | 4.4 | |
2.4 |
Fatigue Strength, MPa | 45 | |
42 |
Poisson's Ratio | 0.33 | |
0.33 |
Shear Modulus, GPa | 27 | |
27 |
Shear Strength, MPa | 64 | |
63 |
Tensile Strength: Ultimate (UTS), MPa | 110 | |
110 |
Tensile Strength: Yield (Proof), MPa | 62 | |
60 |
Thermal Properties
Brazing Temperature, °C | 600 to 620 | |
590 to 600 |
Latent Heat of Fusion, J/g | 510 | |
540 |
Maximum Temperature: Mechanical, °C | 160 | |
160 |
Melting Completion (Liquidus), °C | 620 | |
600 |
Melting Onset (Solidus), °C | 580 | |
560 |
Specific Heat Capacity, J/kg-K | 900 | |
900 |
Thermal Conductivity, W/m-K | 180 | |
130 |
Thermal Expansion, µm/m-K | 22 | |
22 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 44 | |
33 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 150 | |
120 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 9.5 | |
9.5 |
Density, g/cm3 | 2.6 | |
2.6 |
Embodied Carbon, kg CO2/kg material | 7.9 | |
8.0 |
Embodied Energy, MJ/kg | 150 | |
150 |
Embodied Water, L/kg | 1100 | |
1080 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 4.1 | |
2.3 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 27 | |
25 |
Stiffness to Weight: Axial, points | 15 | |
15 |
Stiffness to Weight: Bending, points | 53 | |
54 |
Strength to Weight: Axial, points | 12 | |
12 |
Strength to Weight: Bending, points | 20 | |
20 |
Thermal Diffusivity, mm2/s | 77 | |
58 |
Thermal Shock Resistance, points | 5.2 | |
5.1 |
Alloy Composition
Aluminum (Al), % | 90.3 to 93.2 | |
85.8 to 90 |
Bismuth (Bi), % | 0 | |
0.020 to 0.2 |
Copper (Cu), % | 0 to 0.25 | |
0 to 0.25 |
Iron (Fe), % | 0 to 0.8 | |
0 to 0.8 |
Magnesium (Mg), % | 0 | |
1.0 to 2.0 |
Manganese (Mn), % | 0 to 0.1 | |
0 to 0.1 |
Silicon (Si), % | 6.8 to 8.2 | |
9.0 to 10.5 |
Zinc (Zn), % | 0 to 0.2 | |
0 to 0.2 |
Residuals, % | 0 | |
0 to 0.15 |