Grade 28 Titanium vs. S32615 Stainless Steel
Grade 28 titanium belongs to the titanium alloys classification, while S32615 stainless steel belongs to the iron alloys. There are 27 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 grade 28 titanium and the bottom bar is S32615 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 11 to 17 | |
| 28 |
| Fatigue Strength, MPa | 330 to 480 | |
| 180 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Reduction in Area, % | 22 | |
| 46 |
| Shear Modulus, GPa | 40 | |
| 75 |
| Shear Strength, MPa | 420 to 590 | |
| 400 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 980 | |
| 620 |
| Tensile Strength: Yield (Proof), MPa | 540 to 810 | |
| 250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 370 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 990 |
| Melting Completion (Liquidus), °C | 1640 | |
| 1350 |
| Melting Onset (Solidus), °C | 1590 | |
| 1310 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 500 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 15 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 24 |
| Density, g/cm3 | 4.5 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 37 | |
| 4.4 |
| Embodied Energy, MJ/kg | 600 | |
| 63 |
| Embodied Water, L/kg | 370 | |
| 170 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 110 | |
| 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1370 to 3100 | |
| 160 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 43 to 61 | |
| 23 |
| Strength to Weight: Bending, points | 39 to 49 | |
| 21 |
| Thermal Shock Resistance, points | 47 to 66 | |
| 15 |
Alloy Composition
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| Aluminum (Al), % | 2.5 to 3.5 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.070 |
| Chromium (Cr), % | 0 | |
| 16.5 to 19.5 |
| Copper (Cu), % | 0 | |
| 1.5 to 2.5 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.25 | |
| 46.4 to 57.9 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 0.3 to 1.5 |
| Nickel (Ni), % | 0 | |
| 19 to 22 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.15 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Ruthenium (Ru), % | 0.080 to 0.14 | |
| 0 |
| Silicon (Si), % | 0 | |
| 4.8 to 6.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 92.4 to 95.4 | |
| 0 |
| Vanadium (V), % | 2.0 to 3.0 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |