EN 1.6580 Steel vs. AISI 304 Stainless Steel
Both EN 1.6580 steel and AISI 304 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 32 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 EN 1.6580 steel and the bottom bar is AISI 304 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 350 | |
| 170 to 360 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 to 19 | |
| 8.0 to 43 |
| Fatigue Strength, MPa | 310 to 610 | |
| 210 to 440 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Shear Strength, MPa | 450 to 700 | |
| 400 to 690 |
| Tensile Strength: Ultimate (UTS), MPa | 720 to 1170 | |
| 580 to 1180 |
| Tensile Strength: Yield (Proof), MPa | 460 to 990 | |
| 230 to 860 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 450 | |
| 710 |
| 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 | 40 | |
| 16 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.8 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.9 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 4.3 | |
| 15 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 3.0 |
| Embodied Energy, MJ/kg | 23 | |
| 43 |
| Embodied Water, L/kg | 59 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 3.3 | |
| 20 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 130 | |
| 86 to 250 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 to 2590 | |
| 140 to 1870 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 26 to 41 | |
| 21 to 42 |
| Strength to Weight: Bending, points | 23 to 31 | |
| 20 to 32 |
| Thermal Diffusivity, mm2/s | 11 | |
| 4.2 |
| Thermal Shock Resistance, points | 21 to 34 | |
| 12 to 25 |
Alloy Composition
| Carbon (C), % | 0.26 to 0.34 | |
| 0 to 0.080 |
| Chromium (Cr), % | 1.8 to 2.2 | |
| 18 to 20 |
| Iron (Fe), % | 93.7 to 95.5 | |
| 66.5 to 74 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0.3 to 0.5 | |
| 0 |
| Nickel (Ni), % | 1.8 to 2.2 | |
| 8.0 to 10.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.030 |