ASTM A285 Carbon Steel vs. Grade 20 Titanium
ASTM A285 carbon steel belongs to the iron alloys classification, while grade 20 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is ASTM A285 carbon 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, % | 30 to 34 | |
| 5.7 to 17 |
| Fatigue Strength, MPa | 150 to 180 | |
| 550 to 630 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 73 | |
| 47 |
| Shear Strength, MPa | 250 to 290 | |
| 560 to 740 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 450 | |
| 900 to 1270 |
| Tensile Strength: Yield (Proof), MPa | 190 to 230 | |
| 850 to 1190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 370 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1660 |
| Melting Onset (Solidus), °C | 1420 to 1430 | |
| 1600 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 520 |
| Thermal Expansion, µm/m-K | 12 | |
| 9.6 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.9 | |
| 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 | 110 | |
| 71 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 94 to 150 | |
| 2940 to 5760 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 33 |
| Strength to Weight: Axial, points | 13 to 16 | |
| 50 to 70 |
| Strength to Weight: Bending, points | 15 to 17 | |
| 41 to 52 |
| Thermal Shock Resistance, points | 12 to 14 | |
| 55 to 77 |