EN 1.4646 Stainless Steel vs. Grade 33 Titanium
EN 1.4646 stainless steel belongs to the iron alloys classification, while grade 33 titanium belongs to the titanium alloys. There are 26 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 EN 1.4646 stainless steel and the bottom bar is grade 33 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 110 |
| Elongation at Break, % | 34 | |
| 23 |
| Fatigue Strength, MPa | 340 | |
| 250 |
| Poisson's Ratio | 0.28 | |
| 0.32 |
| Shear Modulus, GPa | 77 | |
| 41 |
| Shear Strength, MPa | 500 | |
| 240 |
| Tensile Strength: Ultimate (UTS), MPa | 750 | |
| 390 |
| Tensile Strength: Yield (Proof), MPa | 430 | |
| 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 420 |
| Maximum Temperature: Mechanical, °C | 910 | |
| 320 |
| Melting Completion (Liquidus), °C | 1390 | |
| 1660 |
| Melting Onset (Solidus), °C | 1340 | |
| 1610 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 540 |
| Thermal Expansion, µm/m-K | 17 | |
| 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 55 |
| Density, g/cm3 | 7.7 | |
| 4.5 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 33 |
| Embodied Energy, MJ/kg | 41 | |
| 530 |
| Embodied Water, L/kg | 160 | |
| 200 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 220 | |
| 86 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 | |
| 590 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 35 |
| Strength to Weight: Axial, points | 27 | |
| 24 |
| Strength to Weight: Bending, points | 24 | |
| 26 |
| Thermal Shock Resistance, points | 16 | |
| 30 |
Alloy Composition
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| Carbon (C), % | 0.020 to 0.1 | |
| 0 to 0.080 |
| Chromium (Cr), % | 17 to 19 | |
| 0.1 to 0.2 |
| Copper (Cu), % | 1.5 to 3.0 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 59 to 67.3 | |
| 0 to 0.3 |
| Manganese (Mn), % | 10.5 to 12.5 | |
| 0 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 |
| Nickel (Ni), % | 3.5 to 4.5 | |
| 0.35 to 0.55 |
| Nitrogen (N), % | 0.2 to 0.3 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.25 |
| Palladium (Pd), % | 0 | |
| 0.010 to 0.020 |
| Phosphorus (P), % | 0 to 0.050 | |
| 0 |
| Ruthenium (Ru), % | 0 | |
| 0.020 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 98.1 to 99.52 |
| Residuals, % | 0 | |
| 0 to 0.4 |