Grade 5 Titanium vs. AISI 422 Stainless Steel
Grade 5 titanium belongs to the titanium alloys classification, while AISI 422 stainless steel belongs to the iron alloys. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is grade 5 titanium and the bottom bar is AISI 422 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 8.6 to 11 | |
| 15 to 17 |
| Fatigue Strength, MPa | 530 to 630 | |
| 410 to 500 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Reduction in Area, % | 21 to 25 | |
| 34 to 40 |
| Rockwell C Hardness | 33 | |
| 21 |
| Shear Modulus, GPa | 40 | |
| 76 |
| Shear Strength, MPa | 600 to 710 | |
| 560 to 660 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 to 1190 | |
| 910 to 1080 |
| Tensile Strength: Yield (Proof), MPa | 910 to 1110 | |
| 670 to 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 650 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1480 |
| Melting Onset (Solidus), °C | 1650 | |
| 1470 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 470 |
| Thermal Conductivity, W/m-K | 6.8 | |
| 24 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.0 | |
| 4.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.0 | |
| 5.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 11 |
| Density, g/cm3 | 4.4 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 3.1 |
| Embodied Energy, MJ/kg | 610 | |
| 44 |
| Embodied Water, L/kg | 200 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 110 | |
| 140 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3980 to 5880 | |
| 1140 to 1910 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 62 to 75 | |
| 32 to 38 |
| Strength to Weight: Bending, points | 50 to 56 | |
| 26 to 30 |
| Thermal Diffusivity, mm2/s | 2.7 | |
| 6.4 |
| Thermal Shock Resistance, points | 76 to 91 | |
| 33 to 39 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.8 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0.2 to 0.25 |
| Chromium (Cr), % | 0 | |
| 11 to 12.5 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 81.9 to 85.8 |
| Manganese (Mn), % | 0 | |
| 0.5 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.9 to 1.3 |
| Nickel (Ni), % | 0 | |
| 0.5 to 1.0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.025 |
| Titanium (Ti), % | 87.4 to 91 | |
| 0 |
| Tungsten (W), % | 0 | |
| 0.9 to 1.3 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 0.2 to 0.3 |
| Yttrium (Y), % | 0 to 0.0050 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |