EN 1.0034 Steel vs. 4115 Aluminum
EN 1.0034 steel belongs to the iron alloys classification, while 4115 aluminum belongs to the aluminum alloys. 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 EN 1.0034 steel and the bottom bar is 4115 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 97 to 110 | |
| 38 to 68 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 70 |
| Elongation at Break, % | 9.0 to 32 | |
| 1.1 to 11 |
| Fatigue Strength, MPa | 140 to 170 | |
| 39 to 76 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 73 | |
| 26 |
| Shear Strength, MPa | 220 to 230 | |
| 71 to 130 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 380 | |
| 120 to 220 |
| Tensile Strength: Yield (Proof), MPa | 180 to 280 | |
| 39 to 190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 420 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 160 |
| Melting Completion (Liquidus), °C | 1460 | |
| 640 |
| Melting Onset (Solidus), °C | 1420 | |
| 590 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 900 |
| Thermal Conductivity, W/m-K | 53 | |
| 160 |
| Thermal Expansion, µm/m-K | 12 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 41 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.0 | |
| 140 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 9.5 |
| Density, g/cm3 | 7.9 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 8.1 |
| Embodied Energy, MJ/kg | 18 | |
| 150 |
| Embodied Water, L/kg | 45 | |
| 1160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 to 95 | |
| 2.1 to 10 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 84 to 210 | |
| 11 to 270 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 50 |
| Strength to Weight: Axial, points | 12 to 13 | |
| 12 to 23 |
| Strength to Weight: Bending, points | 14 to 15 | |
| 20 to 30 |
| Thermal Diffusivity, mm2/s | 14 | |
| 66 |
| Thermal Shock Resistance, points | 11 to 12 | |
| 5.2 to 9.9 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 94.6 to 97.4 |
| Carbon (C), % | 0 to 0.15 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0.1 to 0.5 |
| Iron (Fe), % | 98.7 to 100 | |
| 0 to 0.7 |
| Magnesium (Mg), % | 0 | |
| 0.1 to 0.5 |
| Manganese (Mn), % | 0 to 0.7 | |
| 0.6 to 1.2 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 |
| Silicon (Si), % | 0 to 0.35 | |
| 1.8 to 2.2 |
| Sulfur (S), % | 0 to 0.045 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.2 |
| Residuals, % | 0 | |
| 0 to 0.15 |