ASTM B817 Type II vs. S45500 Stainless Steel
ASTM B817 type II belongs to the titanium alloys classification, while S45500 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is ASTM B817 type II and the bottom bar is S45500 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 190 |
| Elongation at Break, % | 3.0 to 13 | |
| 3.4 to 11 |
| Fatigue Strength, MPa | 390 to 530 | |
| 570 to 890 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Reduction in Area, % | 4.0 to 13 | |
| 34 to 45 |
| Shear Modulus, GPa | 40 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 960 | |
| 1370 to 1850 |
| Tensile Strength: Yield (Proof), MPa | 780 to 900 | |
| 1240 to 1700 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 350 | |
| 760 |
| Melting Completion (Liquidus), °C | 1580 | |
| 1440 |
| Melting Onset (Solidus), °C | 1530 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 470 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 17 |
| Density, g/cm3 | 4.6 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 40 | |
| 3.8 |
| Embodied Energy, MJ/kg | 650 | |
| 57 |
| Embodied Water, L/kg | 220 | |
| 120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 26 to 120 | |
| 45 to 190 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 34 | |
| 24 |
| Strength to Weight: Axial, points | 55 to 58 | |
| 48 to 65 |
| Strength to Weight: Bending, points | 45 to 47 | |
| 35 to 42 |
| Thermal Shock Resistance, points | 62 to 66 | |
| 48 to 64 |
Alloy Composition
| Aluminum (Al), % | 5.0 to 6.0 | |
| 0 |
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.050 |
| Chlorine (Cl), % | 0 to 0.2 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 11 to 12.5 |
| Copper (Cu), % | 0.35 to 1.0 | |
| 1.5 to 2.5 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0.35 to 1.0 | |
| 71.5 to 79.2 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 7.5 to 9.5 |
| Niobium (Nb), % | 0 | |
| 0 to 0.5 |
| Nitrogen (N), % | 0 to 0.040 | |
| 0 |
| Oxygen (O), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.5 |
| Sodium (Na), % | 0 to 0.2 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tantalum (Ta), % | 0 | |
| 0 to 0.5 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 82.1 to 87.8 | |
| 0.8 to 1.4 |
| Vanadium (V), % | 5.0 to 6.0 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |