ASTM B817 Type II vs. AISI 201 Stainless Steel
ASTM B817 type II belongs to the titanium alloys classification, while AISI 201 stainless steel belongs to the iron alloys. There are 25 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 ASTM B817 type II and the bottom bar is AISI 201 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 200 |
| Elongation at Break, % | 3.0 to 13 | |
| 4.6 to 51 |
| Fatigue Strength, MPa | 390 to 530 | |
| 280 to 600 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 40 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 960 | |
| 650 to 1450 |
| Tensile Strength: Yield (Proof), MPa | 780 to 900 | |
| 300 to 1080 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 350 | |
| 880 |
| Melting Completion (Liquidus), °C | 1580 | |
| 1410 |
| Melting Onset (Solidus), °C | 1530 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 480 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 12 |
| Density, g/cm3 | 4.6 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 40 | |
| 2.6 |
| Embodied Energy, MJ/kg | 650 | |
| 38 |
| Embodied Water, L/kg | 220 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 26 to 120 | |
| 61 to 340 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2890 to 3890 | |
| 230 to 2970 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 34 | |
| 25 |
| Strength to Weight: Axial, points | 55 to 58 | |
| 23 to 52 |
| Strength to Weight: Bending, points | 45 to 47 | |
| 22 to 37 |
| Thermal Shock Resistance, points | 62 to 66 | |
| 14 to 32 |
Alloy Composition
| Aluminum (Al), % | 5.0 to 6.0 | |
| 0 |
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.15 |
| Chlorine (Cl), % | 0 to 0.2 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 16 to 18 |
| Copper (Cu), % | 0.35 to 1.0 | |
| 0 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0.35 to 1.0 | |
| 67.5 to 75 |
| Manganese (Mn), % | 0 | |
| 5.5 to 7.5 |
| Nickel (Ni), % | 0 | |
| 3.5 to 5.5 |
| Nitrogen (N), % | 0 to 0.040 | |
| 0 to 0.25 |
| Oxygen (O), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.060 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 1.0 |
| Sodium (Na), % | 0 to 0.2 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| 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 |