Grade 15 Titanium vs. S17600 Stainless Steel
Grade 15 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 15 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, % | 20 | |
| 8.6 to 11 |
| Fatigue Strength, MPa | 290 | |
| 300 to 680 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Reduction in Area, % | 28 | |
| 28 to 50 |
| Shear Modulus, GPa | 41 | |
| 76 |
| Shear Strength, MPa | 340 | |
| 560 to 880 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 940 to 1490 |
| Tensile Strength: Yield (Proof), MPa | 430 | |
| 580 to 1310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 320 | |
| 890 |
| Melting Completion (Liquidus), °C | 1660 | |
| 1430 |
| Melting Onset (Solidus), °C | 1610 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 480 |
| Thermal Conductivity, W/m-K | 21 | |
| 15 |
| Thermal Expansion, µm/m-K | 8.7 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.4 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 6.7 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 13 |
| Density, g/cm3 | 4.5 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 32 | |
| 2.9 |
| Embodied Energy, MJ/kg | 520 | |
| 42 |
| Embodied Water, L/kg | 210 | |
| 130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 | |
| 70 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 870 | |
| 850 to 4390 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 33 | |
| 34 to 54 |
| Strength to Weight: Bending, points | 33 | |
| 28 to 37 |
| Thermal Diffusivity, mm2/s | 8.4 | |
| 4.1 |
| Thermal Shock Resistance, points | 41 | |
| 31 to 50 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 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 0.3 | |
| 71.3 to 77.6 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Nickel (Ni), % | 0.4 to 0.6 | |
| 6.0 to 7.5 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Ruthenium (Ru), % | 0.040 to 0.060 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 98.2 to 99.56 | |
| 0.4 to 1.2 |
| Residuals, % | 0 to 0.4 | |
| 0 |