ASTM A387 Grade 91 Class 2 vs. N06230 Nickel
ASTM A387 grade 91 class 2 belongs to the iron alloys classification, while N06230 nickel belongs to the nickel alloys. There are 30 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 ASTM A387 grade 91 class 2 and the bottom bar is N06230 nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 210 |
| Elongation at Break, % | 20 | |
| 38 to 48 |
| Fatigue Strength, MPa | 330 | |
| 250 to 360 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 75 | |
| 83 |
| Shear Strength, MPa | 420 | |
| 420 to 600 |
| Tensile Strength: Ultimate (UTS), MPa | 670 | |
| 620 to 840 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 330 to 400 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 310 |
| Maximum Temperature: Mechanical, °C | 600 | |
| 990 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1370 |
| Melting Onset (Solidus), °C | 1420 | |
| 1300 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 420 |
| Thermal Conductivity, W/m-K | 26 | |
| 8.9 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.9 | |
| 1.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 10 | |
| 1.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 85 |
| Density, g/cm3 | 7.8 | |
| 9.5 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 11 |
| Embodied Energy, MJ/kg | 37 | |
| 160 |
| Embodied Water, L/kg | 88 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 200 to 330 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 580 | |
| 250 to 380 |
| Stiffness to Weight: Axial, points | 14 | |
| 12 |
| Stiffness to Weight: Bending, points | 25 | |
| 21 |
| Strength to Weight: Axial, points | 24 | |
| 18 to 25 |
| Strength to Weight: Bending, points | 22 | |
| 17 to 21 |
| Thermal Diffusivity, mm2/s | 6.9 | |
| 2.3 |
| Thermal Shock Resistance, points | 19 | |
| 17 to 23 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.020 | |
| 0.2 to 0.5 |
| Boron (B), % | 0 | |
| 0 to 0.015 |
| Carbon (C), % | 0.080 to 0.12 | |
| 0.050 to 0.15 |
| Chromium (Cr), % | 8.0 to 9.5 | |
| 20 to 24 |
| Cobalt (Co), % | 0 | |
| 0 to 5.0 |
| Iron (Fe), % | 87.3 to 90.3 | |
| 0 to 3.0 |
| Lanthanum (La), % | 0 | |
| 0.0050 to 0.050 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0.3 to 1.0 |
| Molybdenum (Mo), % | 0.85 to 1.1 | |
| 1.0 to 3.0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 47.5 to 65.2 |
| Niobium (Nb), % | 0.060 to 0.1 | |
| 0 |
| Nitrogen (N), % | 0.030 to 0.070 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.030 |
| Silicon (Si), % | 0.2 to 0.5 | |
| 0.25 to 0.75 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 |
| Tungsten (W), % | 0 | |
| 13 to 15 |
| Vanadium (V), % | 0.18 to 0.25 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.010 | |
| 0 |