SAE-AISI 1078 Steel vs. EN 1.4568 Stainless Steel
Both SAE-AISI 1078 steel and EN 1.4568 stainless steel are iron alloys. They have 74% 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 SAE-AISI 1078 steel and the bottom bar is EN 1.4568 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 to 14 | |
| 2.3 to 21 |
| Fatigue Strength, MPa | 270 to 350 | |
| 220 to 670 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 | |
| 76 |
| Shear Strength, MPa | 440 to 470 | |
| 520 to 930 |
| Tensile Strength: Ultimate (UTS), MPa | 730 to 780 | |
| 830 to 1620 |
| Tensile Strength: Yield (Proof), MPa | 430 to 570 | |
| 330 to 1490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 890 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1420 |
| Melting Onset (Solidus), °C | 1420 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 49 | |
| 16 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 13 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 2.8 |
| Embodied Energy, MJ/kg | 18 | |
| 40 |
| Embodied Water, L/kg | 45 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 77 to 90 | |
| 36 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 490 to 860 | |
| 290 to 5710 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 26 to 28 | |
| 30 to 58 |
| Strength to Weight: Bending, points | 23 to 24 | |
| 25 to 40 |
| Thermal Diffusivity, mm2/s | 13 | |
| 4.3 |
| Thermal Shock Resistance, points | 25 to 26 | |
| 23 to 46 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.7 to 1.5 |
| Carbon (C), % | 0.72 to 0.85 | |
| 0 to 0.090 |
| Chromium (Cr), % | 0 | |
| 16 to 18 |
| Iron (Fe), % | 98.5 to 99 | |
| 70.9 to 76.8 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 1.0 |
| Nickel (Ni), % | 0 | |
| 6.5 to 7.8 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 0.7 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 to 0.015 |