AWS BNi-7 vs. EN 1.4311 Stainless Steel
AWS BNi-7 belongs to the nickel alloys classification, while EN 1.4311 stainless steel belongs to the iron alloys. They have a modest 24% 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 (16, in this case) are not shown.
For each property being compared, the top bar is AWS BNi-7 and the bottom bar is EN 1.4311 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 170 | |
| 200 |
| Poisson's Ratio | 0.3 | |
| 0.28 |
| Shear Modulus, GPa | 67 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 550 | |
| 650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Melting Completion (Liquidus), °C | 890 | |
| 1420 |
| Melting Onset (Solidus), °C | 890 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Expansion, µm/m-K | 11 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 55 | |
| 16 |
| Density, g/cm3 | 8.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 8.8 | |
| 3.1 |
| Embodied Energy, MJ/kg | 120 | |
| 43 |
| Embodied Water, L/kg | 240 | |
| 140 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 25 |
| Strength to Weight: Axial, points | 19 | |
| 23 |
| Strength to Weight: Bending, points | 19 | |
| 21 |
| Thermal Shock Resistance, points | 21 | |
| 15 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.050 | |
| 0 |
| Boron (B), % | 0 to 0.010 | |
| 0 |
| Carbon (C), % | 0 to 0.060 | |
| 0 to 0.030 |
| Chromium (Cr), % | 13 to 15 | |
| 17.5 to 19.5 |
| Cobalt (Co), % | 0 to 0.1 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 65.7 to 73.9 |
| Manganese (Mn), % | 0 to 0.040 | |
| 0 to 2.0 |
| Nickel (Ni), % | 73.3 to 77.3 | |
| 8.5 to 11.5 |
| Nitrogen (N), % | 0 | |
| 0.12 to 0.22 |
| Phosphorus (P), % | 9.7 to 10.5 | |
| 0 to 0.045 |
| Selenium (Se), % | 0 to 0.0050 | |
| 0 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 to 0.050 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.050 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |