Grade 5 Titanium vs. S15700 Stainless Steel
Grade 5 titanium belongs to the titanium alloys classification, while S15700 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is grade 5 titanium and the bottom bar is S15700 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 8.6 to 11 | |
| 1.1 to 29 |
| Fatigue Strength, MPa | 530 to 630 | |
| 370 to 770 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 40 | |
| 77 |
| Shear Strength, MPa | 600 to 710 | |
| 770 to 1070 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 to 1190 | |
| 1180 to 1890 |
| Tensile Strength: Yield (Proof), MPa | 910 to 1110 | |
| 500 to 1770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 870 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1440 |
| Melting Onset (Solidus), °C | 1650 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 480 |
| Thermal Conductivity, W/m-K | 6.8 | |
| 16 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.0 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.0 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 15 |
| Density, g/cm3 | 4.4 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 3.4 |
| Embodied Energy, MJ/kg | 610 | |
| 47 |
| Embodied Water, L/kg | 200 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 110 | |
| 17 to 270 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3980 to 5880 | |
| 640 to 4660 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 62 to 75 | |
| 42 to 67 |
| Strength to Weight: Bending, points | 50 to 56 | |
| 32 to 43 |
| Thermal Diffusivity, mm2/s | 2.7 | |
| 4.2 |
| Thermal Shock Resistance, points | 76 to 91 | |
| 39 to 63 |
Alloy Composition
| Aluminum (Al), % | 5.5 to 6.8 | |
| 0.75 to 1.5 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.090 |
| Chromium (Cr), % | 0 | |
| 14 to 16 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 69.6 to 76.8 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 2.0 to 3.0 |
| Nickel (Ni), % | 0 | |
| 6.5 to 7.7 |
| 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 |