ASTM B817 Type II vs. Chromium 33
ASTM B817 type II belongs to the titanium alloys classification, while chromium 33 belongs to the otherwise unclassified metals. There are 21 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 ASTM B817 type II and the bottom bar is chromium 33.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 200 |
| Elongation at Break, % | 3.0 to 13 | |
| 45 |
| Poisson's Ratio | 0.32 | |
| 0.27 |
| Shear Modulus, GPa | 40 | |
| 81 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 960 | |
| 850 |
| Tensile Strength: Yield (Proof), MPa | 780 to 900 | |
| 430 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 320 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 480 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 36 |
| Density, g/cm3 | 4.6 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 40 | |
| 6.0 |
| Embodied Energy, MJ/kg | 650 | |
| 84 |
| Embodied Water, L/kg | 220 | |
| 250 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 26 to 120 | |
| 320 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2890 to 3890 | |
| 450 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 34 | |
| 25 |
| Strength to Weight: Axial, points | 55 to 58 | |
| 30 |
| Strength to Weight: Bending, points | 45 to 47 | |
| 25 |
| Thermal Shock Resistance, points | 62 to 66 | |
| 21 |
Alloy Composition
| Aluminum (Al), % | 5.0 to 6.0 | |
| 0 |
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.015 |
| Chlorine (Cl), % | 0 to 0.2 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 31 to 35 |
| Copper (Cu), % | 0.35 to 1.0 | |
| 0.3 to 1.2 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0.35 to 1.0 | |
| 25.7 to 37.9 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 0.5 to 2.0 |
| Nickel (Ni), % | 0 | |
| 30 to 33 |
| Nitrogen (N), % | 0 to 0.040 | |
| 0.35 to 0.6 |
| Oxygen (O), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.5 |
| Sodium (Na), % | 0 to 0.2 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 82.1 to 87.8 | |
| 0 |
| Vanadium (V), % | 5.0 to 6.0 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |