EN 1.4104 Stainless Steel vs. SAE-AISI 1078 Steel
Both EN 1.4104 stainless steel and SAE-AISI 1078 steel are iron alloys. They have 82% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is EN 1.4104 stainless steel and the bottom bar is SAE-AISI 1078 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 11 to 23 | |
| 11 to 14 |
| Fatigue Strength, MPa | 230 to 310 | |
| 270 to 350 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 72 |
| Shear Strength, MPa | 400 to 450 | |
| 440 to 470 |
| Tensile Strength: Ultimate (UTS), MPa | 630 to 750 | |
| 730 to 780 |
| Tensile Strength: Yield (Proof), MPa | 350 to 560 | |
| 430 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 860 | |
| 400 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1460 |
| Melting Onset (Solidus), °C | 1390 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 25 | |
| 49 |
| Thermal Expansion, µm/m-K | 10 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 8.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 8.5 | |
| 1.8 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 1.4 |
| Embodied Energy, MJ/kg | 30 | |
| 18 |
| Embodied Water, L/kg | 120 | |
| 45 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 77 to 120 | |
| 77 to 90 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 310 to 800 | |
| 490 to 860 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 23 to 27 | |
| 26 to 28 |
| Strength to Weight: Bending, points | 21 to 24 | |
| 23 to 24 |
| Thermal Diffusivity, mm2/s | 6.7 | |
| 13 |
| Thermal Shock Resistance, points | 22 to 27 | |
| 25 to 26 |
Alloy Composition
| Carbon (C), % | 0.1 to 0.17 | |
| 0.72 to 0.85 |
| Chromium (Cr), % | 15.5 to 17.5 | |
| 0 |
| Iron (Fe), % | 78.8 to 84.1 | |
| 98.5 to 99 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0.3 to 0.6 |
| Molybdenum (Mo), % | 0.2 to 0.6 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0.15 to 0.35 | |
| 0 to 0.050 |