SAE-AISI 1137 Steel vs. 1200 Aluminum
SAE-AISI 1137 steel belongs to the iron alloys classification, while 1200 aluminum belongs to the aluminum 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 SAE-AISI 1137 steel and the bottom bar is 1200 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 210 | |
| 23 to 48 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 69 |
| Elongation at Break, % | 11 to 17 | |
| 1.1 to 28 |
| Fatigue Strength, MPa | 250 to 400 | |
| 25 to 69 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 73 | |
| 26 |
| Shear Strength, MPa | 430 to 460 | |
| 54 to 100 |
| Tensile Strength: Ultimate (UTS), MPa | 700 to 760 | |
| 85 to 180 |
| Tensile Strength: Yield (Proof), MPa | 370 to 650 | |
| 28 to 160 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 170 |
| Melting Completion (Liquidus), °C | 1460 | |
| 660 |
| Melting Onset (Solidus), °C | 1420 | |
| 650 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 900 |
| Thermal Conductivity, W/m-K | 51 | |
| 230 |
| Thermal Expansion, µm/m-K | 13 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 10 | |
| 58 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 12 | |
| 190 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 9.0 |
| Density, g/cm3 | 7.8 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 8.2 |
| Embodied Energy, MJ/kg | 19 | |
| 150 |
| Embodied Water, L/kg | 48 | |
| 1190 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 81 to 100 | |
| 2.0 to 19 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 360 to 1130 | |
| 5.7 to 180 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 50 |
| Strength to Weight: Axial, points | 25 to 27 | |
| 8.7 to 19 |
| Strength to Weight: Bending, points | 22 to 24 | |
| 16 to 26 |
| Thermal Diffusivity, mm2/s | 14 | |
| 92 |
| Thermal Shock Resistance, points | 21 to 23 | |
| 3.8 to 8.1 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 99 to 100 |
| Carbon (C), % | 0.32 to 0.39 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.050 |
| Iron (Fe), % | 97.8 to 98.3 | |
| 0 to 1.0 |
| Manganese (Mn), % | 1.4 to 1.7 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0.080 to 0.13 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.050 |
| Zinc (Zn), % | 0 | |
| 0 to 0.1 |
| Residuals, % | 0 | |
| 0 to 0.15 |