AISI 316 Stainless Steel vs. SAE-AISI 1021 Steel
Both AISI 316 stainless steel and SAE-AISI 1021 steel are iron alloys. They have 68% of their average alloy composition in common. There are 32 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 316 stainless steel and the bottom bar is SAE-AISI 1021 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 360 | |
| 130 to 150 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 8.0 to 55 | |
| 17 to 27 |
| Fatigue Strength, MPa | 210 to 430 | |
| 190 to 300 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Reduction in Area, % | 80 | |
| 46 to 54 |
| Shear Modulus, GPa | 78 | |
| 73 |
| Shear Strength, MPa | 350 to 690 | |
| 310 to 320 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 1180 | |
| 480 to 530 |
| Tensile Strength: Yield (Proof), MPa | 230 to 850 | |
| 260 to 450 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 590 | |
| 400 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1460 |
| Melting Onset (Solidus), °C | 1380 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 52 |
| Thermal Expansion, µm/m-K | 16 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 8.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 1.8 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.9 | |
| 1.4 |
| Embodied Energy, MJ/kg | 53 | |
| 18 |
| Embodied Water, L/kg | 150 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 85 to 260 | |
| 84 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 1820 | |
| 180 to 530 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 18 to 41 | |
| 17 to 19 |
| Strength to Weight: Bending, points | 18 to 31 | |
| 17 to 18 |
| Thermal Diffusivity, mm2/s | 4.1 | |
| 14 |
| Thermal Shock Resistance, points | 11 to 26 | |
| 15 to 17 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0.18 to 0.23 |
| Chromium (Cr), % | 16 to 18 | |
| 0 |
| Iron (Fe), % | 62 to 72 | |
| 98.8 to 99.22 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.6 to 0.9 |
| Molybdenum (Mo), % | 2.0 to 3.0 | |
| 0 |
| Nickel (Ni), % | 10 to 14 | |
| 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 |