EN 1.4640 Stainless Steel vs. ASTM B817 Type I
EN 1.4640 stainless steel belongs to the iron alloys classification, while ASTM B817 type I belongs to the titanium alloys. There are 29 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 EN 1.4640 stainless steel and the bottom bar is ASTM B817 type I.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 100 |
| Elongation at Break, % | 51 | |
| 4.0 to 13 |
| Fatigue Strength, MPa | 230 to 250 | |
| 360 to 520 |
| Poisson's Ratio | 0.28 | |
| 0.32 |
| Shear Modulus, GPa | 77 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 650 | |
| 770 to 960 |
| Tensile Strength: Yield (Proof), MPa | 240 to 260 | |
| 700 to 860 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 930 | |
| 340 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1600 |
| Melting Onset (Solidus), °C | 1380 | |
| 1550 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 560 |
| Thermal Conductivity, W/m-K | 15 | |
| 7.1 |
| Thermal Expansion, µm/m-K | 16 | |
| 9.6 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 1.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 2.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 14 | |
| 36 |
| Density, g/cm3 | 7.8 | |
| 4.4 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 38 |
| Embodied Energy, MJ/kg | 40 | |
| 610 |
| Embodied Water, L/kg | 150 | |
| 200 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 250 to 260 | |
| 30 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 170 | |
| 2310 to 3540 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 35 |
| Strength to Weight: Axial, points | 22 to 23 | |
| 48 to 60 |
| Strength to Weight: Bending, points | 21 | |
| 42 to 49 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 2.9 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 54 to 68 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 5.5 to 6.8 |
| Carbon (C), % | 0.030 to 0.080 | |
| 0 to 0.1 |
| Chlorine (Cl), % | 0 | |
| 0 to 0.2 |
| Chromium (Cr), % | 18 to 19 | |
| 0 |
| Copper (Cu), % | 1.3 to 2.0 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 67.4 to 73.6 | |
| 0 to 0.4 |
| Manganese (Mn), % | 1.5 to 4.0 | |
| 0 |
| Nickel (Ni), % | 5.5 to 6.9 | |
| 0 |
| Nitrogen (N), % | 0.030 to 0.11 | |
| 0 to 0.040 |
| Oxygen (O), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.1 |
| Sodium (Na), % | 0 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 87 to 91 |
| Vanadium (V), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |