Grade 36 Titanium vs. AISI 440A Stainless Steel
Grade 36 titanium belongs to the titanium alloys classification, while AISI 440A stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is grade 36 titanium and the bottom bar is AISI 440A stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 11 | |
| 5.0 to 20 |
| Fatigue Strength, MPa | 300 | |
| 270 to 790 |
| Poisson's Ratio | 0.36 | |
| 0.28 |
| Shear Modulus, GPa | 39 | |
| 77 |
| Shear Strength, MPa | 320 | |
| 450 to 1040 |
| Tensile Strength: Ultimate (UTS), MPa | 530 | |
| 730 to 1790 |
| Tensile Strength: Yield (Proof), MPa | 520 | |
| 420 to 1650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 370 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 320 | |
| 760 |
| Melting Completion (Liquidus), °C | 2020 | |
| 1480 |
| Melting Onset (Solidus), °C | 1950 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 420 | |
| 480 |
| Thermal Expansion, µm/m-K | 8.1 | |
| 10 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.3 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 58 | |
| 2.2 |
| Embodied Energy, MJ/kg | 920 | |
| 31 |
| Embodied Water, L/kg | 130 | |
| 120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 59 | |
| 87 to 120 |
| Stiffness to Weight: Axial, points | 9.3 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 23 | |
| 26 to 65 |
| Strength to Weight: Bending, points | 23 | |
| 23 to 43 |
| Thermal Shock Resistance, points | 45 | |
| 26 to 65 |
Alloy Composition
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| Carbon (C), % | 0 to 0.030 | |
| 0.6 to 0.75 |
| Chromium (Cr), % | 0 | |
| 16 to 18 |
| Hydrogen (H), % | 0 to 0.0035 | |
| 0 |
| Iron (Fe), % | 0 to 0.030 | |
| 78.4 to 83.4 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.75 |
| Niobium (Nb), % | 42 to 47 | |
| 0 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.16 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Titanium (Ti), % | 52.3 to 58 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |