AISI 309 Stainless Steel vs. EN 1.6570 Steel
Both AISI 309 stainless steel and EN 1.6570 steel are iron alloys. They have 66% 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 309 stainless steel and the bottom bar is EN 1.6570 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 210 | |
| 270 to 340 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 34 to 47 | |
| 11 to 17 |
| Fatigue Strength, MPa | 250 to 280 | |
| 500 to 660 |
| Poisson's Ratio | 0.27 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 710 | |
| 910 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 260 to 350 | |
| 760 to 1060 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 980 | |
| 440 |
| 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 | |
| 40 |
| Thermal Expansion, µm/m-K | 15 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 7.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 8.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 19 | |
| 3.9 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.6 | |
| 1.7 |
| Embodied Energy, MJ/kg | 51 | |
| 23 |
| Embodied Water, L/kg | 170 | |
| 56 |
Common Calculations
| PREN (Pitting Resistance) | 23 | |
| 2.5 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 200 to 230 | |
| 120 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 170 to 310 | |
| 1520 to 3010 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 32 to 40 |
| Strength to Weight: Bending, points | 20 to 23 | |
| 27 to 31 |
| Thermal Diffusivity, mm2/s | 4.3 | |
| 11 |
| Thermal Shock Resistance, points | 14 to 16 | |
| 27 to 33 |
Alloy Composition
| Carbon (C), % | 0 to 0.2 | |
| 0.28 to 0.35 |
| Chromium (Cr), % | 22 to 24 | |
| 1.0 to 1.4 |
| Iron (Fe), % | 58 to 66 | |
| 94 to 96.2 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0.6 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.3 to 0.5 |
| Nickel (Ni), % | 12 to 15 | |
| 1.6 to 2.1 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |