ACI-ASTM CA6N Steel vs. 707.0 Aluminum
ACI-ASTM CA6N steel belongs to the iron alloys classification, while 707.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 ACI-ASTM CA6N steel and the bottom bar is 707.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 70 |
| Elongation at Break, % | 17 | |
| 1.7 to 3.4 |
| Fatigue Strength, MPa | 640 | |
| 75 to 140 |
| Poisson's Ratio | 0.28 | |
| 0.33 |
| Shear Modulus, GPa | 75 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 1080 | |
| 270 to 300 |
| Tensile Strength: Yield (Proof), MPa | 1060 | |
| 170 to 250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 740 | |
| 180 |
| Melting Completion (Liquidus), °C | 1440 | |
| 630 |
| Melting Onset (Solidus), °C | 1400 | |
| 600 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 880 |
| Thermal Conductivity, W/m-K | 23 | |
| 150 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.6 | |
| 37 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.0 | |
| 110 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 9.5 |
| Density, g/cm3 | 7.8 | |
| 2.9 |
| Embodied Carbon, kg CO2/kg material | 2.5 | |
| 8.3 |
| Embodied Energy, MJ/kg | 35 | |
| 150 |
| Embodied Water, L/kg | 110 | |
| 1140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 180 | |
| 4.3 to 8.6 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2900 | |
| 210 to 430 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 47 |
| Strength to Weight: Axial, points | 38 | |
| 26 to 29 |
| Strength to Weight: Bending, points | 30 | |
| 32 to 34 |
| Thermal Diffusivity, mm2/s | 6.1 | |
| 58 |
| Thermal Shock Resistance, points | 40 | |
| 12 to 13 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 90.5 to 93.6 |
| Carbon (C), % | 0 to 0.060 | |
| 0 |
| Chromium (Cr), % | 10.5 to 12.5 | |
| 0.2 to 0.4 |
| Copper (Cu), % | 0 | |
| 0 to 0.2 |
| Iron (Fe), % | 77.9 to 83.5 | |
| 0 to 0.8 |
| Magnesium (Mg), % | 0 | |
| 1.8 to 2.4 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0.4 to 0.6 |
| Nickel (Ni), % | 6.0 to 8.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.25 |
| Zinc (Zn), % | 0 | |
| 4.0 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.15 |