Grade 28 Titanium vs. S17600 Stainless Steel
Grade 28 titanium belongs to the titanium alloys classification, while S17600 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is grade 28 titanium and the bottom bar is S17600 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 11 to 17 | |
| 8.6 to 11 |
| Fatigue Strength, MPa | 330 to 480 | |
| 300 to 680 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Reduction in Area, % | 22 | |
| 28 to 50 |
| Shear Modulus, GPa | 40 | |
| 76 |
| Shear Strength, MPa | 420 to 590 | |
| 560 to 880 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 980 | |
| 940 to 1490 |
| Tensile Strength: Yield (Proof), MPa | 540 to 810 | |
| 580 to 1310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 890 |
| Melting Completion (Liquidus), °C | 1640 | |
| 1430 |
| Melting Onset (Solidus), °C | 1590 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 480 |
| Thermal Conductivity, W/m-K | 8.3 | |
| 15 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.3 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 13 |
| Density, g/cm3 | 4.5 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 37 | |
| 2.9 |
| Embodied Energy, MJ/kg | 600 | |
| 42 |
| Embodied Water, L/kg | 370 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 110 | |
| 70 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1370 to 3100 | |
| 850 to 4390 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 43 to 61 | |
| 34 to 54 |
| Strength to Weight: Bending, points | 39 to 49 | |
| 28 to 37 |
| Thermal Diffusivity, mm2/s | 3.4 | |
| 4.1 |
| Thermal Shock Resistance, points | 47 to 66 | |
| 31 to 50 |
Alloy Composition
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| Aluminum (Al), % | 2.5 to 3.5 | |
| 0 to 0.4 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0 | |
| 16 to 17.5 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.25 | |
| 71.3 to 77.6 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Nickel (Ni), % | 0 | |
| 6.0 to 7.5 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.15 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Ruthenium (Ru), % | 0.080 to 0.14 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 92.4 to 95.4 | |
| 0.4 to 1.2 |
| Vanadium (V), % | 2.0 to 3.0 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |