ASTM A202 Steel vs. Grade 7 Titanium
ASTM A202 steel belongs to the iron alloys classification, while grade 7 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is ASTM A202 steel and the bottom bar is grade 7 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 200 | |
| 150 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Elongation at Break, % | 17 to 18 | |
| 24 |
| Fatigue Strength, MPa | 240 | |
| 250 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 73 | |
| 38 |
| Shear Strength, MPa | 360 to 410 | |
| 270 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 670 | |
| 420 |
| Tensile Strength: Yield (Proof), MPa | 350 to 360 | |
| 340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 420 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 320 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1660 |
| Melting Onset (Solidus), °C | 1410 | |
| 1610 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 540 |
| Thermal Conductivity, W/m-K | 52 | |
| 22 |
| Thermal Expansion, µm/m-K | 13 | |
| 9.2 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 3.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 7.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 4.5 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 47 |
| Embodied Energy, MJ/kg | 19 | |
| 800 |
| Embodied Water, L/kg | 49 | |
| 470 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 93 to 96 | |
| 95 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 330 to 350 | |
| 560 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 35 |
| Strength to Weight: Axial, points | 21 to 24 | |
| 26 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 28 |
| Thermal Diffusivity, mm2/s | 14 | |
| 8.9 |
| Thermal Shock Resistance, points | 17 to 20 | |
| 31 |