SAE-AISI 1042 Steel vs. 1200 Aluminum
SAE-AISI 1042 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 1042 steel and the bottom bar is 1200 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 180 to 200 | |
23 to 48 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
69 |
Elongation at Break, % | 14 to 18 | |
1.1 to 28 |
Fatigue Strength, MPa | 230 to 370 | |
25 to 69 |
Poisson's Ratio | 0.29 | |
0.33 |
Shear Modulus, GPa | 73 | |
26 |
Shear Strength, MPa | 380 to 420 | |
54 to 100 |
Tensile Strength: Ultimate (UTS), MPa | 620 to 700 | |
85 to 180 |
Tensile Strength: Yield (Proof), MPa | 340 to 580 | |
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 | 52 | |
230 |
Thermal Expansion, µm/m-K | 12 | |
23 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
58 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
190 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 1.8 | |
9.0 |
Density, g/cm3 | 7.8 | |
2.7 |
Embodied Carbon, kg CO2/kg material | 1.4 | |
8.2 |
Embodied Energy, MJ/kg | 18 | |
150 |
Embodied Water, L/kg | 46 | |
1190 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 94 | |
2.0 to 19 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 320 to 900 | |
5.7 to 180 |
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
50 |
Strength to Weight: Axial, points | 22 to 25 | |
8.7 to 19 |
Strength to Weight: Bending, points | 21 to 22 | |
16 to 26 |
Thermal Diffusivity, mm2/s | 14 | |
92 |
Thermal Shock Resistance, points | 20 to 22 | |
3.8 to 8.1 |
Alloy Composition
Aluminum (Al), % | 0 | |
99 to 100 |
Carbon (C), % | 0.4 to 0.47 | |
0 |
Copper (Cu), % | 0 | |
0 to 0.050 |
Iron (Fe), % | 98.5 to 99 | |
0 to 1.0 |
Manganese (Mn), % | 0.6 to 0.9 | |
0 to 0.050 |
Phosphorus (P), % | 0 to 0.040 | |
0 |
Silicon (Si), % | 0 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.050 | |
0 |
Titanium (Ti), % | 0 | |
0 to 0.050 |
Zinc (Zn), % | 0 | |
0 to 0.1 |
Residuals, % | 0 | |
0 to 0.15 |