S45000 Stainless Steel vs. SAE-AISI 1078 Steel
Both S45000 stainless steel and SAE-AISI 1078 steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 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 S45000 stainless steel and the bottom bar is SAE-AISI 1078 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 to 410 | |
| 220 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 6.8 to 14 | |
| 11 to 14 |
| Fatigue Strength, MPa | 330 to 650 | |
| 270 to 350 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Reduction in Area, % | 22 to 50 | |
| 34 to 45 |
| Shear Modulus, GPa | 76 | |
| 72 |
| Shear Strength, MPa | 590 to 830 | |
| 440 to 470 |
| Tensile Strength: Ultimate (UTS), MPa | 980 to 1410 | |
| 730 to 780 |
| Tensile Strength: Yield (Proof), MPa | 580 to 1310 | |
| 430 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 840 | |
| 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 | 17 | |
| 49 |
| Thermal Expansion, µm/m-K | 11 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 8.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 1.4 |
| Embodied Energy, MJ/kg | 39 | |
| 18 |
| Embodied Water, L/kg | 130 | |
| 45 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 94 to 160 | |
| 77 to 90 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 850 to 4400 | |
| 490 to 860 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 35 to 50 | |
| 26 to 28 |
| Strength to Weight: Bending, points | 28 to 36 | |
| 23 to 24 |
| Thermal Diffusivity, mm2/s | 4.5 | |
| 13 |
| Thermal Shock Resistance, points | 33 to 47 | |
| 25 to 26 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0.72 to 0.85 |
| Chromium (Cr), % | 14 to 16 | |
| 0 |
| Copper (Cu), % | 1.3 to 1.8 | |
| 0 |
| Iron (Fe), % | 72.1 to 79.3 | |
| 98.5 to 99 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.3 to 0.6 |
| Molybdenum (Mo), % | 0.5 to 1.0 | |
| 0 |
| Nickel (Ni), % | 5.0 to 7.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.050 |