705.0-T1 Aluminum vs. 707.0-T1 Aluminum
Both 705.0-T1 aluminum and 707.0-T1 aluminum are aluminum alloys. Both are furnished in the T1 temper. They have a very high 97% of their average alloy composition in common.
For each property being compared, the top bar is 705.0-T1 aluminum and the bottom bar is 707.0-T1 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 65 | |
| 85 |
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 70 |
| Elongation at Break, % | 8.4 | |
| 3.4 |
| Fatigue Strength, MPa | 98 | |
| 130 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 260 | |
| 290 |
| Tensile Strength: Yield (Proof), MPa | 130 | |
| 190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 180 |
| Melting Completion (Liquidus), °C | 640 | |
| 630 |
| Melting Onset (Solidus), °C | 610 | |
| 600 |
| Solidification (Pattern Maker's) Shrinkage, % | 1.6 | |
| 1.6 |
| Specific Heat Capacity, J/kg-K | 890 | |
| 880 |
| Thermal Conductivity, W/m-K | 140 | |
| 150 |
| Thermal Expansion, µm/m-K | 24 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 34 | |
| 37 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
| 110 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 9.5 |
| Density, g/cm3 | 2.8 | |
| 2.9 |
| Embodied Carbon, kg CO2/kg material | 8.4 | |
| 8.3 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1170 | |
| 1140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 | |
| 8.6 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 | |
| 250 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 49 | |
| 47 |
| Strength to Weight: Axial, points | 26 | |
| 28 |
| Strength to Weight: Bending, points | 32 | |
| 34 |
| Thermal Diffusivity, mm2/s | 55 | |
| 58 |
| Thermal Shock Resistance, points | 11 | |
| 12 |
Alloy Composition
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| Aluminum (Al), % | 92.3 to 98.6 | |
| 90.5 to 93.6 |
| Chromium (Cr), % | 0 to 0.4 | |
| 0.2 to 0.4 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 to 0.2 |
| Iron (Fe), % | 0 to 0.8 | |
| 0 to 0.8 |
| Magnesium (Mg), % | 1.4 to 1.8 | |
| 1.8 to 2.4 |
| Manganese (Mn), % | 0 to 0.6 | |
| 0.4 to 0.6 |
| Silicon (Si), % | 0 to 0.2 | |
| 0 to 0.2 |
| Titanium (Ti), % | 0 to 0.25 | |
| 0 to 0.25 |
| Zinc (Zn), % | 0 to 3.3 | |
| 4.0 to 4.5 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |