ASTM B817 Type I vs. S44735 Stainless Steel
ASTM B817 type I belongs to the titanium alloys classification, while S44735 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is ASTM B817 type I and the bottom bar is S44735 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 210 |
| Elongation at Break, % | 4.0 to 13 | |
| 21 |
| Fatigue Strength, MPa | 360 to 520 | |
| 300 |
| Poisson's Ratio | 0.32 | |
| 0.27 |
| Shear Modulus, GPa | 40 | |
| 82 |
| Tensile Strength: Ultimate (UTS), MPa | 770 to 960 | |
| 630 |
| Tensile Strength: Yield (Proof), MPa | 700 to 860 | |
| 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 310 |
| Maximum Temperature: Mechanical, °C | 340 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1600 | |
| 1460 |
| Melting Onset (Solidus), °C | 1550 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 480 |
| Thermal Expansion, µm/m-K | 9.6 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 21 |
| Density, g/cm3 | 4.4 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 4.4 |
| Embodied Energy, MJ/kg | 610 | |
| 61 |
| Embodied Water, L/kg | 200 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 30 to 120 | |
| 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2310 to 3540 | |
| 520 |
| Stiffness to Weight: Axial, points | 13 | |
| 15 |
| Stiffness to Weight: Bending, points | 35 | |
| 26 |
| Strength to Weight: Axial, points | 48 to 60 | |
| 23 |
| Strength to Weight: Bending, points | 42 to 49 | |
| 21 |
| Thermal Shock Resistance, points | 54 to 68 | |
| 20 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.8 | |
| 0 |
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.030 |
| Chlorine (Cl), % | 0 to 0.2 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 28 to 30 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 60.7 to 68.4 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 3.6 to 4.2 |
| Nickel (Ni), % | 0 | |
| 0 to 1.0 |
| Niobium (Nb), % | 0 | |
| 0.2 to 1.0 |
| Nitrogen (N), % | 0 to 0.040 | |
| 0 to 0.045 |
| Oxygen (O), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 1.0 |
| Sodium (Na), % | 0 to 0.2 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 87 to 91 | |
| 0.2 to 1.0 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |