SAE-AISI 8645 Steel vs. EN 1.4913 Stainless Steel
Both SAE-AISI 8645 steel and EN 1.4913 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 8645 steel and the bottom bar is EN 1.4913 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 23 | |
| 14 to 22 |
| Fatigue Strength, MPa | 280 to 350 | |
| 320 to 480 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 75 |
| Shear Strength, MPa | 380 to 400 | |
| 550 to 590 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 670 | |
| 870 to 980 |
| Tensile Strength: Yield (Proof), MPa | 390 to 560 | |
| 480 to 850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 700 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 39 | |
| 24 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 2.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 3.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.6 | |
| 9.0 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 2.9 |
| Embodied Energy, MJ/kg | 20 | |
| 41 |
| Embodied Water, L/kg | 50 | |
| 97 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 77 to 120 | |
| 130 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 420 to 840 | |
| 600 to 1860 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 24 | |
| 31 to 35 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 26 to 28 |
| Thermal Diffusivity, mm2/s | 10 | |
| 6.5 |
| Thermal Shock Resistance, points | 18 to 20 | |
| 31 to 34 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.020 |
| Boron (B), % | 0 | |
| 0 to 0.0015 |
| Carbon (C), % | 0.43 to 0.48 | |
| 0.17 to 0.23 |
| Chromium (Cr), % | 0.4 to 0.6 | |
| 10 to 11.5 |
| Iron (Fe), % | 96.5 to 97.7 | |
| 84.5 to 88.3 |
| Manganese (Mn), % | 0.75 to 1.0 | |
| 0.4 to 0.9 |
| Molybdenum (Mo), % | 0.15 to 0.25 | |
| 0.5 to 0.8 |
| Nickel (Ni), % | 0.4 to 0.7 | |
| 0.2 to 0.6 |
| Niobium (Nb), % | 0 | |
| 0.25 to 0.55 |
| Nitrogen (N), % | 0 | |
| 0.050 to 0.1 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.025 |
| Silicon (Si), % | 0.15 to 0.35 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 to 0.015 |
| Vanadium (V), % | 0 | |
| 0.1 to 0.3 |