Grade 37 Titanium vs. EN 1.4857 Stainless Steel
Grade 37 titanium belongs to the titanium alloys classification, while EN 1.4857 stainless steel belongs to the iron alloys. There are 29 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 37 titanium and the bottom bar is EN 1.4857 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 22 | |
| 6.7 |
| Fatigue Strength, MPa | 170 | |
| 120 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 40 | |
| 78 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 500 |
| Tensile Strength: Yield (Proof), MPa | 250 | |
| 250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 330 |
| Maximum Temperature: Mechanical, °C | 310 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1650 | |
| 1370 |
| Melting Onset (Solidus), °C | 1600 | |
| 1320 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 480 |
| Thermal Conductivity, W/m-K | 21 | |
| 13 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.4 | |
| 1.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 6.8 | |
| 2.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 34 |
| Density, g/cm3 | 4.5 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 31 | |
| 5.7 |
| Embodied Energy, MJ/kg | 500 | |
| 81 |
| Embodied Water, L/kg | 120 | |
| 220 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 76 | |
| 28 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 | |
| 150 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 24 | |
| 18 |
| Strength to Weight: Bending, points | 26 | |
| 18 |
| Thermal Diffusivity, mm2/s | 8.4 | |
| 3.4 |
| Thermal Shock Resistance, points | 29 | |
| 11 |
Alloy Composition
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| Aluminum (Al), % | 1.0 to 2.0 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0.3 to 0.5 |
| Chromium (Cr), % | 0 | |
| 24 to 27 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 31.4 to 41.7 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 33 to 36 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 1.0 to 2.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 96.9 to 99 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |