S17400 Stainless Steel vs. ASTM B817 Type II
S17400 stainless steel belongs to the iron alloys classification, while ASTM B817 type II belongs to the titanium alloys. There are 26 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 S17400 stainless steel and the bottom bar is ASTM B817 type II.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 100 |
| Elongation at Break, % | 11 to 21 | |
| 3.0 to 13 |
| Fatigue Strength, MPa | 380 to 670 | |
| 390 to 530 |
| Poisson's Ratio | 0.28 | |
| 0.32 |
| Reduction in Area, % | 40 to 62 | |
| 4.0 to 13 |
| Shear Modulus, GPa | 75 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 910 to 1390 | |
| 900 to 960 |
| Tensile Strength: Yield (Proof), MPa | 580 to 1250 | |
| 780 to 900 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 850 | |
| 350 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1580 |
| Melting Onset (Solidus), °C | 1400 | |
| 1530 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 550 |
| Thermal Expansion, µm/m-K | 11 | |
| 9.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 14 | |
| 37 |
| Density, g/cm3 | 7.8 | |
| 4.6 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 40 |
| Embodied Energy, MJ/kg | 39 | |
| 650 |
| Embodied Water, L/kg | 130 | |
| 220 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 26 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 4060 | |
| 2890 to 3890 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 34 |
| Strength to Weight: Axial, points | 32 to 49 | |
| 55 to 58 |
| Strength to Weight: Bending, points | 27 to 35 | |
| 45 to 47 |
| Thermal Shock Resistance, points | 30 to 46 | |
| 62 to 66 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 5.0 to 6.0 |
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.1 |
| Chlorine (Cl), % | 0 | |
| 0 to 0.2 |
| Chromium (Cr), % | 15 to 17 | |
| 0 |
| Copper (Cu), % | 3.0 to 5.0 | |
| 0.35 to 1.0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 70.4 to 78.9 | |
| 0.35 to 1.0 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 |
| Nickel (Ni), % | 3.0 to 5.0 | |
| 0 |
| Niobium (Nb), % | 0.15 to 0.45 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.040 |
| Oxygen (O), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.1 |
| Sodium (Na), % | 0 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tin (Sn), % | 0 | |
| 1.5 to 2.5 |
| Titanium (Ti), % | 0 | |
| 82.1 to 87.8 |
| Vanadium (V), % | 0 | |
| 5.0 to 6.0 |
| Residuals, % | 0 | |
| 0 to 0.4 |