SAE-AISI M50 Steel vs. Grade 29 Titanium
SAE-AISI M50 steel belongs to the iron alloys classification, while grade 29 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI M50 steel and the bottom bar is grade 29 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 75 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 720 to 2250 | |
| 930 to 940 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 410 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1610 |
| Melting Onset (Solidus), °C | 1440 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 560 |
| Thermal Conductivity, W/m-K | 35 | |
| 7.3 |
| Thermal Expansion, µm/m-K | 13 | |
| 9.3 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.7 | |
| 1.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 10 | |
| 2.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.0 | |
| 36 |
| Density, g/cm3 | 7.9 | |
| 4.5 |
| Embodied Carbon, kg CO2/kg material | 5.1 | |
| 39 |
| Embodied Energy, MJ/kg | 74 | |
| 640 |
| Embodied Water, L/kg | 83 | |
| 410 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 35 |
| Strength to Weight: Axial, points | 26 to 80 | |
| 58 to 59 |
| Strength to Weight: Bending, points | 23 to 49 | |
| 47 to 48 |
| Thermal Diffusivity, mm2/s | 9.7 | |
| 2.9 |
| Thermal Shock Resistance, points | 21 to 66 | |
| 68 to 69 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 5.5 to 6.5 |
| Carbon (C), % | 0.78 to 0.88 | |
| 0 to 0.080 |
| Chromium (Cr), % | 3.8 to 4.5 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 87 to 90.4 | |
| 0 to 0.25 |
| Manganese (Mn), % | 0.15 to 0.45 | |
| 0 |
| Molybdenum (Mo), % | 3.9 to 4.8 | |
| 0 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.13 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 |
| Ruthenium (Ru), % | 0 | |
| 0.080 to 0.14 |
| Silicon (Si), % | 0.2 to 0.6 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 88 to 90.9 |
| Vanadium (V), % | 0.8 to 1.3 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |