Grade 5 Titanium vs. S45000 Stainless Steel
Grade 5 titanium belongs to the titanium alloys classification, while S45000 stainless steel belongs to the iron alloys. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is grade 5 titanium and the bottom bar is S45000 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 8.6 to 11 | |
| 6.8 to 14 |
| Fatigue Strength, MPa | 530 to 630 | |
| 330 to 650 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Reduction in Area, % | 21 to 25 | |
| 22 to 50 |
| Rockwell C Hardness | 33 | |
| 28 to 44 |
| Shear Modulus, GPa | 40 | |
| 76 |
| Shear Strength, MPa | 600 to 710 | |
| 590 to 830 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 to 1190 | |
| 980 to 1410 |
| Tensile Strength: Yield (Proof), MPa | 910 to 1110 | |
| 580 to 1310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 840 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1440 |
| Melting Onset (Solidus), °C | 1650 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 480 |
| Thermal Conductivity, W/m-K | 6.8 | |
| 17 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.0 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.0 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 13 |
| Density, g/cm3 | 4.4 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 2.8 |
| Embodied Energy, MJ/kg | 610 | |
| 39 |
| Embodied Water, L/kg | 200 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 110 | |
| 94 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3980 to 5880 | |
| 850 to 4400 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 62 to 75 | |
| 35 to 50 |
| Strength to Weight: Bending, points | 50 to 56 | |
| 28 to 36 |
| Thermal Diffusivity, mm2/s | 2.7 | |
| 4.5 |
| Thermal Shock Resistance, points | 76 to 91 | |
| 33 to 47 |
Alloy Composition
| Aluminum (Al), % | 5.5 to 6.8 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 14 to 16 |
| Copper (Cu), % | 0 | |
| 1.3 to 1.8 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 72.1 to 79.3 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.5 to 1.0 |
| Nickel (Ni), % | 0 | |
| 5.0 to 7.0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 87.4 to 91 | |
| 0 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 0 |
| Yttrium (Y), % | 0 to 0.0050 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |