AISI 303 Stainless Steel vs. SAE-AISI 1070 Steel
Both AISI 303 stainless steel and SAE-AISI 1070 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 303 stainless steel and the bottom bar is SAE-AISI 1070 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 210 | |
| 190 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 40 to 51 | |
| 10 to 13 |
| Fatigue Strength, MPa | 230 to 360 | |
| 270 to 350 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 72 |
| Shear Strength, MPa | 430 to 470 | |
| 380 to 460 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 690 | |
| 640 to 760 |
| Tensile Strength: Yield (Proof), MPa | 230 to 420 | |
| 420 to 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 930 | |
| 400 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 16 | |
| 50 |
| Thermal Expansion, µm/m-K | 17 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 10 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.8 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 1.4 |
| Embodied Energy, MJ/kg | 42 | |
| 19 |
| Embodied Water, L/kg | 140 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 240 | |
| 59 to 86 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 440 | |
| 470 to 850 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 23 to 27 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 21 to 24 |
| Thermal Diffusivity, mm2/s | 4.4 | |
| 14 |
| Thermal Shock Resistance, points | 13 to 15 | |
| 21 to 25 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0.65 to 0.75 |
| Chromium (Cr), % | 17 to 19 | |
| 0 |
| Iron (Fe), % | 67.3 to 74.9 | |
| 98.3 to 98.8 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.6 to 0.9 |
| Nickel (Ni), % | 8.0 to 10 | |
| 0 |
| Phosphorus (P), % | 0 to 0.2 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0.15 to 0.35 | |
| 0 to 0.050 |