Annealed AISI 301 vs. Annealed AISI 303
Both annealed AISI 301 and annealed AISI 303 are iron alloys. Both are furnished in the annealed condition. They have a very high 97% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is annealed AISI 301 and the bottom bar is annealed AISI 303.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 | |
| 170 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 46 | |
| 51 |
| Fatigue Strength, MPa | 210 | |
| 230 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 410 | |
| 430 |
| Tensile Strength: Ultimate (UTS), MPa | 590 | |
| 600 |
| Tensile Strength: Yield (Proof), MPa | 230 | |
| 230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 840 | |
| 930 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1450 |
| Melting Onset (Solidus), °C | 1400 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 16 | |
| 16 |
| Thermal Expansion, µm/m-K | 17 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 2.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 15 |
| Calomel Potential, mV | -70 | |
| -80 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.0 |
| Embodied Energy, MJ/kg | 39 | |
| 42 |
| Embodied Water, L/kg | 130 | |
| 140 |
Common Calculations
| PREN (Pitting Resistance) | 18 | |
| 18 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 210 | |
| 240 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 | |
| 140 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 21 | |
| 21 |
| Strength to Weight: Bending, points | 20 | |
| 20 |
| Thermal Diffusivity, mm2/s | 4.2 | |
| 4.4 |
| Thermal Shock Resistance, points | 12 | |
| 13 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.15 |
| Chromium (Cr), % | 16 to 18 | |
| 17 to 19 |
| Iron (Fe), % | 70.7 to 78 | |
| 67.3 to 74.9 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 2.0 |
| Nickel (Ni), % | 6.0 to 8.0 | |
| 8.0 to 10 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.2 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0.15 to 0.35 |