EN 1.1221 Steel vs. Grade 350 Maraging Steel
Both EN 1.1221 steel and grade 350 maraging steel are iron alloys. They have 63% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is EN 1.1221 steel and the bottom bar is grade 350 maraging steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 10 to 21 | |
| 4.1 to 18 |
| Poisson's Ratio | 0.29 | |
| 0.3 |
| Shear Modulus, GPa | 72 | |
| 75 |
| Shear Strength, MPa | 450 to 520 | |
| 710 to 1400 |
| Tensile Strength: Ultimate (UTS), MPa | 730 to 870 | |
| 1140 to 2420 |
| Tensile Strength: Yield (Proof), MPa | 390 to 550 | |
| 830 to 2300 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 270 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1470 |
| Melting Onset (Solidus), °C | 1410 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 450 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 39 |
| Density, g/cm3 | 7.8 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 5.6 |
| Embodied Energy, MJ/kg | 19 | |
| 74 |
| Embodied Water, L/kg | 47 | |
| 160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 67 to 130 | |
| 98 to 190 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 26 to 31 | |
| 38 to 82 |
| Strength to Weight: Bending, points | 23 to 26 | |
| 29 to 49 |
| Thermal Shock Resistance, points | 23 to 28 | |
| 35 to 74 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.050 to 0.15 |
| Boron (B), % | 0 | |
| 0 to 0.0030 |
| Calcium (Ca), % | 0 | |
| 0 to 0.050 |
| Carbon (C), % | 0.57 to 0.65 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 to 0.4 | |
| 0 |
| Cobalt (Co), % | 0 | |
| 11.5 to 12.5 |
| Iron (Fe), % | 97.1 to 98.8 | |
| 61.2 to 64.6 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 4.6 to 5.2 |
| Nickel (Ni), % | 0 to 0.4 | |
| 18 to 19 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0 | |
| 1.3 to 1.6 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.020 |