AWS BNi-8 vs. ASTM F15 Fe-Ni-Co
AWS BNi-8 belongs to the nickel alloys classification, while ASTM F15 Fe-Ni-Co belongs to the iron alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is AWS BNi-8 and the bottom bar is ASTM F15 Fe-Ni-Co.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 190 |
| Poisson's Ratio | 0.32 | |
| 0.3 |
| Shear Modulus, GPa | 67 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 570 | |
| 520 to 880 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 270 |
| Melting Completion (Liquidus), °C | 1010 | |
| 1410 |
| Melting Onset (Solidus), °C | 980 | |
| 1450 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 460 |
| Thermal Expansion, µm/m-K | 13 | |
| 6.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 46 | |
| 49 |
| Density, g/cm3 | 7.9 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 5.2 |
| Embodied Energy, MJ/kg | 120 | |
| 71 |
| Embodied Water, L/kg | 220 | |
| 190 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 20 | |
| 17 to 29 |
| Strength to Weight: Bending, points | 19 | |
| 17 to 24 |
| Thermal Shock Resistance, points | 17 | |
| 32 to 55 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.050 | |
| 0 to 0.1 |
| Carbon (C), % | 0 to 0.060 | |
| 0 to 0.040 |
| Chromium (Cr), % | 0 | |
| 0 to 0.2 |
| Cobalt (Co), % | 0 to 0.1 | |
| 16 to 18 |
| Copper (Cu), % | 4.0 to 5.0 | |
| 0 to 0.2 |
| Iron (Fe), % | 0 | |
| 50.3 to 56 |
| Magnesium (Mg), % | 0 | |
| 0 to 0.1 |
| Manganese (Mn), % | 21.5 to 24.5 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.2 |
| Nickel (Ni), % | 61.6 to 68.5 | |
| 28 to 30 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 |
| Selenium (Se), % | 0 to 0.0050 | |
| 0 |
| Silicon (Si), % | 6.0 to 8.0 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 |
| Titanium (Ti), % | 0 to 0.050 | |
| 0 to 0.1 |
| Zirconium (Zr), % | 0 to 0.050 | |
| 0 to 0.1 |
| Residuals, % | 0 to 0.5 | |
| 0 |