Grade 37 Titanium vs. S13800 Stainless Steel
Grade 37 titanium belongs to the titanium alloys classification, while S13800 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 37 titanium and the bottom bar is S13800 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 22 | |
| 11 to 18 |
| Fatigue Strength, MPa | 170 | |
| 410 to 870 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Reduction in Area, % | 34 | |
| 39 to 62 |
| Shear Modulus, GPa | 40 | |
| 77 |
| Shear Strength, MPa | 240 | |
| 610 to 1030 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 980 to 1730 |
| Tensile Strength: Yield (Proof), MPa | 250 | |
| 660 to 1580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 310 | |
| 810 |
| Melting Completion (Liquidus), °C | 1650 | |
| 1450 |
| Melting Onset (Solidus), °C | 1600 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 470 |
| Thermal Conductivity, W/m-K | 21 | |
| 16 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.4 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 6.8 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 15 |
| Density, g/cm3 | 4.5 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 31 | |
| 3.4 |
| Embodied Energy, MJ/kg | 500 | |
| 46 |
| Embodied Water, L/kg | 120 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 76 | |
| 150 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 | |
| 1090 to 5490 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 24 | |
| 35 to 61 |
| Strength to Weight: Bending, points | 26 | |
| 28 to 41 |
| Thermal Diffusivity, mm2/s | 8.4 | |
| 4.3 |
| Thermal Shock Resistance, points | 29 | |
| 33 to 58 |
Alloy Composition
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| Aluminum (Al), % | 1.0 to 2.0 | |
| 0.9 to 1.4 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 12.3 to 13.2 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 73.6 to 77.3 |
| Manganese (Mn), % | 0 | |
| 0 to 0.2 |
| Molybdenum (Mo), % | 0 | |
| 2.0 to 3.0 |
| Nickel (Ni), % | 0 | |
| 7.5 to 8.5 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 to 0.010 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 | |
| 0 to 0.0080 |
| Titanium (Ti), % | 96.9 to 99 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |