SAE-AISI 1018 Steel vs. S13800 Stainless Steel
Both SAE-AISI 1018 steel and S13800 stainless 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 SAE-AISI 1018 steel and the bottom bar is S13800 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 130 to 140 | |
| 290 to 480 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 17 to 27 | |
| 11 to 18 |
| Fatigue Strength, MPa | 180 to 270 | |
| 410 to 870 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Reduction in Area, % | 45 to 57 | |
| 39 to 62 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 280 to 300 | |
| 610 to 1030 |
| Tensile Strength: Ultimate (UTS), MPa | 430 to 480 | |
| 980 to 1730 |
| Tensile Strength: Yield (Proof), MPa | 240 to 400 | |
| 660 to 1580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 810 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1450 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 52 | |
| 16 |
| Thermal Expansion, µm/m-K | 12 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.0 | |
| 2.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 15 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 3.4 |
| Embodied Energy, MJ/kg | 18 | |
| 46 |
| Embodied Water, L/kg | 46 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 75 to 100 | |
| 150 to 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 430 | |
| 1090 to 5490 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 15 to 17 | |
| 35 to 61 |
| Strength to Weight: Bending, points | 16 to 17 | |
| 28 to 41 |
| Thermal Diffusivity, mm2/s | 14 | |
| 4.3 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 33 to 58 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.9 to 1.4 |
| Carbon (C), % | 0.15 to 0.2 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 12.3 to 13.2 |
| Iron (Fe), % | 98.8 to 99.25 | |
| 73.6 to 77.3 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0 to 0.2 |
| Molybdenum (Mo), % | 0 | |
| 2.0 to 3.0 |
| Nickel (Ni), % | 0 | |
| 7.5 to 8.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.010 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 to 0.0080 |