ASTM A387 Grade 91 Class 2 vs. EN 2.4815 Cast Nickel
ASTM A387 grade 91 class 2 belongs to the iron alloys classification, while EN 2.4815 cast nickel belongs to the nickel alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is ASTM A387 grade 91 class 2 and the bottom bar is EN 2.4815 cast nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 20 | |
| 3.4 |
| Fatigue Strength, MPa | 330 | |
| 89 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 75 | |
| 74 |
| Tensile Strength: Ultimate (UTS), MPa | 670 | |
| 460 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 220 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 330 |
| Maximum Temperature: Mechanical, °C | 600 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1510 |
| Melting Onset (Solidus), °C | 1420 | |
| 1450 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 26 | |
| 25 |
| Thermal Expansion, µm/m-K | 13 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.9 | |
| 3.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 10 | |
| 3.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 47 |
| Density, g/cm3 | 7.8 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 7.9 |
| Embodied Energy, MJ/kg | 37 | |
| 110 |
| Embodied Water, L/kg | 88 | |
| 230 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 13 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 580 | |
| 130 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 24 | |
| 15 |
| Strength to Weight: Bending, points | 22 | |
| 16 |
| Thermal Diffusivity, mm2/s | 6.9 | |
| 6.4 |
| Thermal Shock Resistance, points | 19 | |
| 17 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.020 | |
| 0 |
| Carbon (C), % | 0.080 to 0.12 | |
| 0.35 to 0.65 |
| Chromium (Cr), % | 8.0 to 9.5 | |
| 12 to 18 |
| Iron (Fe), % | 87.3 to 90.3 | |
| 9.8 to 28.7 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0.85 to 1.1 | |
| 0 to 1.0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 58 to 66 |
| Niobium (Nb), % | 0.060 to 0.1 | |
| 0 |
| Nitrogen (N), % | 0.030 to 0.070 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.2 to 0.5 | |
| 1.0 to 2.5 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 |
| Vanadium (V), % | 0.18 to 0.25 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.010 | |
| 0 |