R30556 Alloy vs. EN 1.6368 Steel
Both R30556 alloy and EN 1.6368 steel are iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 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 R30556 alloy and the bottom bar is EN 1.6368 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 190 |
| Elongation at Break, % | 45 | |
| 18 |
| Fatigue Strength, MPa | 320 | |
| 310 to 330 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 81 | |
| 73 |
| Shear Strength, MPa | 550 | |
| 410 to 430 |
| Tensile Strength: Ultimate (UTS), MPa | 780 | |
| 660 to 690 |
| Tensile Strength: Yield (Proof), MPa | 350 | |
| 460 to 490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 410 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1460 |
| Melting Onset (Solidus), °C | 1330 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 470 |
| Thermal Conductivity, W/m-K | 11 | |
| 40 |
| Thermal Expansion, µm/m-K | 15 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.8 | |
| 7.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.9 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 70 | |
| 3.4 |
| Density, g/cm3 | 8.4 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 8.7 | |
| 1.7 |
| Embodied Energy, MJ/kg | 130 | |
| 22 |
| Embodied Water, L/kg | 300 | |
| 53 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 290 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 290 | |
| 580 to 650 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 26 | |
| 23 to 24 |
| Strength to Weight: Bending, points | 22 | |
| 21 to 22 |
| Thermal Diffusivity, mm2/s | 2.9 | |
| 11 |
| Thermal Shock Resistance, points | 18 | |
| 20 |
Alloy Composition
| Aluminum (Al), % | 0.1 to 0.5 | |
| 0.015 to 0.040 |
| Boron (B), % | 0 to 0.020 | |
| 0 |
| Carbon (C), % | 0.050 to 0.15 | |
| 0 to 0.17 |
| Chromium (Cr), % | 21 to 23 | |
| 0 to 0.3 |
| Cobalt (Co), % | 16 to 21 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0.5 to 0.8 |
| Iron (Fe), % | 20.4 to 38.2 | |
| 95.1 to 97.2 |
| Lanthanum (La), % | 0.0050 to 0.1 | |
| 0 |
| Manganese (Mn), % | 0.5 to 2.0 | |
| 0.8 to 1.2 |
| Molybdenum (Mo), % | 2.5 to 4.0 | |
| 0.25 to 0.5 |
| Nickel (Ni), % | 19 to 22.5 | |
| 1.0 to 1.3 |
| Niobium (Nb), % | 0 to 0.3 | |
| 0.015 to 0.045 |
| Nitrogen (N), % | 0.1 to 0.3 | |
| 0 to 0.020 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.025 |
| Silicon (Si), % | 0.2 to 0.8 | |
| 0.25 to 0.5 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.010 |
| Tantalum (Ta), % | 0.3 to 1.3 | |
| 0 |
| Tungsten (W), % | 2.0 to 3.5 | |
| 0 |
| Zinc (Zn), % | 0.0010 to 0.1 | |
| 0 |