SAE-AISI 1043 Steel vs. Grade 20 Titanium
SAE-AISI 1043 steel belongs to the iron alloys classification, while grade 20 titanium belongs to the titanium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 1043 steel and the bottom bar is grade 20 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 120 |
| Elongation at Break, % | 13 to 18 | |
| 5.7 to 17 |
| Fatigue Strength, MPa | 230 to 390 | |
| 550 to 630 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Reduction in Area, % | 40 to 51 | |
| 23 |
| Shear Modulus, GPa | 73 | |
| 47 |
| Shear Strength, MPa | 400 to 430 | |
| 560 to 740 |
| Tensile Strength: Ultimate (UTS), MPa | 650 to 710 | |
| 900 to 1270 |
| Tensile Strength: Yield (Proof), MPa | 350 to 600 | |
| 850 to 1190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 370 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1660 |
| Melting Onset (Solidus), °C | 1420 | |
| 1600 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 520 |
| Thermal Expansion, µm/m-K | 12 | |
| 9.6 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 5.0 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 52 |
| Embodied Energy, MJ/kg | 18 | |
| 860 |
| Embodied Water, L/kg | 46 | |
| 350 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 100 | |
| 71 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 320 to 980 | |
| 2940 to 5760 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 33 |
| Strength to Weight: Axial, points | 23 to 25 | |
| 50 to 70 |
| Strength to Weight: Bending, points | 21 to 22 | |
| 41 to 52 |
| Thermal Shock Resistance, points | 21 to 22 | |
| 55 to 77 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 3.0 to 4.0 |
| Carbon (C), % | 0.4 to 0.47 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 5.5 to 6.5 |
| Hydrogen (H), % | 0 | |
| 0 to 0.020 |
| Iron (Fe), % | 98.4 to 98.9 | |
| 0 to 0.3 |
| Manganese (Mn), % | 0.7 to 1.0 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 3.5 to 4.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.12 |
| Palladium (Pd), % | 0 | |
| 0.040 to 0.080 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 71 to 77 |
| Vanadium (V), % | 0 | |
| 7.5 to 8.5 |
| Zirconium (Zr), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |