SAE-AISI 1021 Steel vs. N08028 Stainless Steel
Both SAE-AISI 1021 steel and N08028 stainless steel are iron alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 1021 steel and the bottom bar is N08028 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 130 to 150 | |
| 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 17 to 27 | |
| 45 |
| Fatigue Strength, MPa | 190 to 300 | |
| 220 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 80 |
| Shear Strength, MPa | 310 to 320 | |
| 400 |
| Tensile Strength: Ultimate (UTS), MPa | 480 to 530 | |
| 570 |
| Tensile Strength: Yield (Proof), MPa | 260 to 450 | |
| 240 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1420 |
| Melting Onset (Solidus), °C | 1420 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 52 | |
| 12 |
| Thermal Expansion, µm/m-K | 12 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 37 |
| Density, g/cm3 | 7.9 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 6.4 |
| Embodied Energy, MJ/kg | 18 | |
| 89 |
| Embodied Water, L/kg | 46 | |
| 240 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 84 to 110 | |
| 210 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 to 530 | |
| 140 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 17 to 19 | |
| 19 |
| Strength to Weight: Bending, points | 17 to 18 | |
| 19 |
| Thermal Diffusivity, mm2/s | 14 | |
| 3.2 |
| Thermal Shock Resistance, points | 15 to 17 | |
| 12 |
Alloy Composition
| Carbon (C), % | 0.18 to 0.23 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 | |
| 26 to 28 |
| Copper (Cu), % | 0 | |
| 0.6 to 1.4 |
| Iron (Fe), % | 98.8 to 99.22 | |
| 29 to 40.4 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0 to 2.5 |
| Molybdenum (Mo), % | 0 | |
| 3.0 to 4.0 |
| Nickel (Ni), % | 0 | |
| 30 to 34 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 to 0.030 |