EN 1.3961 Alloy vs. EN 1.6579 Steel
Both EN 1.3961 alloy and EN 1.6579 steel are iron alloys. They have 65% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is EN 1.3961 alloy and the bottom bar is EN 1.6579 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 31 | |
| 11 to 14 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 450 | |
| 850 to 980 |
| Tensile Strength: Yield (Proof), MPa | 310 | |
| 600 to 910 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1460 |
| Melting Onset (Solidus), °C | 1390 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 470 |
| Thermal Expansion, µm/m-K | 1.3 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 25 | |
| 3.7 |
| Density, g/cm3 | 8.2 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 4.8 | |
| 1.7 |
| Embodied Energy, MJ/kg | 66 | |
| 22 |
| Embodied Water, L/kg | 110 | |
| 56 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
| 100 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 | |
| 950 to 2210 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 15 | |
| 30 to 35 |
| Strength to Weight: Bending, points | 16 | |
| 25 to 28 |
| Thermal Shock Resistance, points | 130 | |
| 25 to 29 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0.32 to 0.38 |
| Chromium (Cr), % | 0 to 0.25 | |
| 1.4 to 1.7 |
| Iron (Fe), % | 60.7 to 65 | |
| 94.2 to 96.1 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0.6 to 1.0 |
| Molybdenum (Mo), % | 0 to 1.0 | |
| 0.15 to 0.35 |
| Nickel (Ni), % | 35 to 37 | |
| 1.4 to 1.7 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.030 |