SAE-AISI D2 Steel vs. Titanium 4-4-2
SAE-AISI D2 steel belongs to the iron alloys classification, while titanium 4-4-2 belongs to the titanium alloys. There are 27 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 SAE-AISI D2 steel and the bottom bar is titanium 4-4-2.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Elongation at Break, % | 5.0 to 16 | |
| 10 |
| Fatigue Strength, MPa | 310 to 860 | |
| 590 to 620 |
| Poisson's Ratio | 0.28 | |
| 0.32 |
| Shear Modulus, GPa | 75 | |
| 42 |
| Shear Strength, MPa | 460 to 1160 | |
| 690 to 750 |
| Tensile Strength: Ultimate (UTS), MPa | 760 to 2000 | |
| 1150 to 1250 |
| Tensile Strength: Yield (Proof), MPa | 470 to 1510 | |
| 1030 to 1080 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 410 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1610 |
| Melting Onset (Solidus), °C | 1390 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 540 |
| Thermal Conductivity, W/m-K | 31 | |
| 6.7 |
| Thermal Expansion, µm/m-K | 11 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 8.0 | |
| 39 |
| Density, g/cm3 | 7.7 | |
| 4.7 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 30 |
| Embodied Energy, MJ/kg | 50 | |
| 480 |
| Embodied Water, L/kg | 100 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 92 to 100 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 570 to 5940 | |
| 4700 to 5160 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 34 |
| Strength to Weight: Axial, points | 27 to 72 | |
| 68 to 74 |
| Strength to Weight: Bending, points | 24 to 46 | |
| 52 to 55 |
| Thermal Diffusivity, mm2/s | 8.3 | |
| 2.6 |
| Thermal Shock Resistance, points | 25 to 67 | |
| 86 to 93 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 3.0 to 5.0 |
| Carbon (C), % | 1.4 to 1.6 | |
| 0 to 0.080 |
| Chromium (Cr), % | 11 to 13 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 81.3 to 86.9 | |
| 0 to 0.2 |
| Manganese (Mn), % | 0 to 0.6 | |
| 0 |
| Molybdenum (Mo), % | 0.7 to 1.2 | |
| 3.0 to 5.0 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 | |
| 0 to 0.25 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 0 to 0.6 | |
| 0.3 to 0.7 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tin (Sn), % | 0 | |
| 1.5 to 2.5 |
| Titanium (Ti), % | 0 | |
| 85.8 to 92.2 |
| Vanadium (V), % | 0 to 1.1 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.4 |