AISI 302 Stainless Steel vs. SAE-AISI 1020 Steel
Both AISI 302 stainless steel and SAE-AISI 1020 steel are iron alloys. They have 72% of their average alloy composition in common. There are 31 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 AISI 302 stainless steel and the bottom bar is SAE-AISI 1020 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 440 | |
| 120 to 130 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 4.5 to 46 | |
| 17 to 28 |
| Fatigue Strength, MPa | 210 to 520 | |
| 180 to 250 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Shear Strength, MPa | 400 to 830 | |
| 280 |
| Tensile Strength: Ultimate (UTS), MPa | 580 to 1430 | |
| 430 to 460 |
| Tensile Strength: Yield (Proof), MPa | 230 to 1100 | |
| 240 to 380 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 710 | |
| 400 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 16 | |
| 52 |
| Thermal Expansion, µm/m-K | 17 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.8 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 1.4 |
| Embodied Energy, MJ/kg | 42 | |
| 18 |
| Embodied Water, L/kg | 140 | |
| 45 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 59 to 260 | |
| 72 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 3070 | |
| 150 to 380 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 51 | |
| 15 to 16 |
| Strength to Weight: Bending, points | 20 to 36 | |
| 16 to 17 |
| Thermal Diffusivity, mm2/s | 4.4 | |
| 14 |
| Thermal Shock Resistance, points | 12 to 31 | |
| 13 to 14 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0.18 to 0.23 |
| Chromium (Cr), % | 17 to 19 | |
| 0 |
| Iron (Fe), % | 67.9 to 75 | |
| 99.08 to 99.52 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.3 to 0.6 |
| Nickel (Ni), % | 8.0 to 10 | |
| 0 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.050 |