355.0 Aluminum vs. ASTM A203 Steel
355.0 aluminum belongs to the aluminum alloys classification, while ASTM A203 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 355.0 aluminum and the bottom bar is ASTM A203 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 72 to 83 | |
| 160 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 190 |
| Elongation at Break, % | 1.5 to 2.6 | |
| 22 to 26 |
| Fatigue Strength, MPa | 55 to 70 | |
| 210 to 280 |
| Poisson's Ratio | 0.33 | |
| 0.29 |
| Shear Modulus, GPa | 27 | |
| 73 |
| Shear Strength, MPa | 150 to 240 | |
| 330 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 200 to 260 | |
| 520 to 590 |
| Tensile Strength: Yield (Proof), MPa | 150 to 190 | |
| 290 to 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 470 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 410 |
| Melting Completion (Liquidus), °C | 620 | |
| 1460 |
| Melting Onset (Solidus), °C | 560 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 890 | |
| 470 |
| Thermal Conductivity, W/m-K | 150 to 170 | |
| 52 |
| Thermal Expansion, µm/m-K | 22 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 38 to 43 | |
| 7.4 to 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 120 to 140 | |
| 8.5 to 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 3.2 to 4.0 |
| Density, g/cm3 | 2.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 1.6 to 1.7 |
| Embodied Energy, MJ/kg | 150 | |
| 21 to 23 |
| Embodied Water, L/kg | 1120 | |
| 50 to 52 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 2.7 to 5.9 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 250 | |
| 230 to 410 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 51 | |
| 24 |
| Strength to Weight: Axial, points | 20 to 27 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 28 to 33 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 60 to 69 | |
| 14 |
| Thermal Shock Resistance, points | 9.1 to 12 | |
| 15 to 17 |