ASTM A266 Carbon Steel vs. AISI 303 Stainless Steel
Both ASTM A266 carbon steel and AISI 303 stainless steel are iron alloys. 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 ASTM A266 carbon steel and the bottom bar is AISI 303 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 to 180 | |
| 170 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 21 to 26 | |
| 40 to 51 |
| Fatigue Strength, MPa | 170 to 200 | |
| 230 to 360 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 320 to 380 | |
| 430 to 470 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 600 | |
| 600 to 690 |
| Tensile Strength: Yield (Proof), MPa | 230 to 290 | |
| 230 to 420 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 930 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1450 |
| Melting Onset (Solidus), °C | 1420 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 51 to 52 | |
| 16 |
| Thermal Expansion, µm/m-K | 12 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 to 8.2 | |
| 2.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 15 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 3.0 |
| Embodied Energy, MJ/kg | 18 to 19 | |
| 42 |
| Embodied Water, L/kg | 46 to 47 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 240 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 230 | |
| 140 to 440 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 18 to 21 | |
| 21 to 25 |
| Strength to Weight: Bending, points | 18 to 20 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 14 | |
| 4.4 |
| Thermal Shock Resistance, points | 16 to 19 | |
| 13 to 15 |