EN 1.6579 Steel vs. EN 1.4618 Stainless Steel
Both EN 1.6579 steel and EN 1.4618 stainless steel are iron alloys. They have 72% 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 1.6579 steel and the bottom bar is EN 1.4618 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 260 to 290 | |
| 200 to 210 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 to 14 | |
| 51 |
| Fatigue Strength, MPa | 380 to 570 | |
| 240 to 250 |
| Impact Strength: V-Notched Charpy, J | 35 to 41 | |
| 90 to 91 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 850 to 980 | |
| 680 to 700 |
| Tensile Strength: Yield (Proof), MPa | 600 to 910 | |
| 250 to 260 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 440 | |
| 900 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1400 |
| Melting Onset (Solidus), °C | 1410 | |
| 1360 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 39 | |
| 15 |
| Thermal Expansion, µm/m-K | 13 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.7 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.7 | |
| 13 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.7 | |
| 2.7 |
| Embodied Energy, MJ/kg | 22 | |
| 39 |
| Embodied Water, L/kg | 56 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 2.4 | |
| 19 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 120 | |
| 270 to 280 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 950 to 2210 | |
| 160 to 170 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 30 to 35 | |
| 24 to 25 |
| Strength to Weight: Bending, points | 25 to 28 | |
| 22 to 23 |
| Thermal Diffusivity, mm2/s | 11 | |
| 4.0 |
| Thermal Shock Resistance, points | 25 to 29 | |
| 15 to 16 |
Alloy Composition
| Carbon (C), % | 0.32 to 0.38 | |
| 0 to 0.1 |
| Chromium (Cr), % | 1.4 to 1.7 | |
| 16.5 to 18.5 |
| Copper (Cu), % | 0 | |
| 1.0 to 2.5 |
| Iron (Fe), % | 94.2 to 96.1 | |
| 62.7 to 72.5 |
| Manganese (Mn), % | 0.6 to 1.0 | |
| 5.5 to 9.5 |
| Molybdenum (Mo), % | 0.15 to 0.35 | |
| 0 |
| Nickel (Ni), % | 1.4 to 1.7 | |
| 4.5 to 5.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.15 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.070 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.010 |