AWS BAu-5 vs. S21800 Stainless Steel
AWS BAu-5 belongs to the otherwise unclassified metals classification, while S21800 stainless steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.
For each property being compared, the top bar is AWS BAu-5 and the bottom bar is S21800 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 190 |
| Poisson's Ratio | 0.37 | |
| 0.28 |
| Shear Modulus, GPa | 50 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 210 | |
| 740 |
Thermal Properties
| Latent Heat of Fusion, J/g | 180 | |
| 340 |
| Melting Completion (Liquidus), °C | 1170 | |
| 1360 |
| Melting Onset (Solidus), °C | 1140 | |
| 1310 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 500 |
| Thermal Expansion, µm/m-K | 12 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.5 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.8 | |
| 14 |
| Stiffness to Weight: Bending, points | 13 | |
| 26 |
| Strength to Weight: Axial, points | 4.5 | |
| 27 |
| Strength to Weight: Bending, points | 6.0 | |
| 24 |
| Thermal Shock Resistance, points | 9.0 | |
| 17 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0 to 0.1 |
| Chromium (Cr), % | 0 | |
| 16 to 18 |
| Gold (Au), % | 29.5 to 30.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 59.1 to 65.4 |
| Manganese (Mn), % | 0 | |
| 7.0 to 9.0 |
| Nickel (Ni), % | 35.5 to 36.4 | |
| 8.0 to 9.0 |
| Nitrogen (N), % | 0 | |
| 0.080 to 0.18 |
| Palladium (Pd), % | 33.5 to 34.5 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.060 |
| Silicon (Si), % | 0 | |
| 3.5 to 4.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Residuals, % | 0 to 0.15 | |
| 0 |