AWS BAu-5 vs. AWS BMg-1
AWS BAu-5 belongs to the otherwise unclassified metals classification, while AWS BMg-1 belongs to the magnesium alloys. There are 16 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is AWS BAu-5 and the bottom bar is AWS BMg-1.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 47 |
| Poisson's Ratio | 0.37 | |
| 0.29 |
| Shear Modulus, GPa | 50 | |
| 18 |
| Tensile Strength: Ultimate (UTS), MPa | 210 | |
| 180 |
Thermal Properties
| Brazing Temperature, °C | 1170 to 1230 | |
| 600 to 630 |
| Latent Heat of Fusion, J/g | 180 | |
| 350 |
| Melting Completion (Liquidus), °C | 1170 | |
| 600 |
| Melting Onset (Solidus), °C | 1140 | |
| 440 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 980 |
| Thermal Expansion, µm/m-K | 12 | |
| 26 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 1.8 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.8 | |
| 14 |
| Stiffness to Weight: Bending, points | 13 | |
| 66 |
| Strength to Weight: Axial, points | 4.5 | |
| 27 |
| Strength to Weight: Bending, points | 6.0 | |
| 39 |
| Thermal Shock Resistance, points | 9.0 | |
| 10 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 8.3 to 9.7 |
| Beryllium (Be), % | 0 | |
| 0.00020 to 0.00080 |
| Copper (Cu), % | 0 | |
| 0 to 0.050 |
| Gold (Au), % | 29.5 to 30.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0 to 0.0050 |
| Magnesium (Mg), % | 0 | |
| 86.1 to 89.8 |
| Manganese (Mn), % | 0 | |
| 0.15 to 1.5 |
| Nickel (Ni), % | 35.5 to 36.4 | |
| 0 to 0.0050 |
| Palladium (Pd), % | 33.5 to 34.5 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.050 |
| Zinc (Zn), % | 0 | |
| 1.7 to 2.3 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.3 |