AWS BMg-1 vs. C66900 Brass
AWS BMg-1 belongs to the magnesium alloys classification, while C66900 brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 BMg-1 and the bottom bar is C66900 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 47 | |
| 120 |
| Elongation at Break, % | 3.8 | |
| 1.1 to 26 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 18 | |
| 45 |
| Shear Strength, MPa | 100 | |
| 290 to 440 |
| Tensile Strength: Ultimate (UTS), MPa | 180 | |
| 460 to 770 |
| Tensile Strength: Yield (Proof), MPa | 110 | |
| 330 to 760 |
Thermal Properties
| Latent Heat of Fusion, J/g | 350 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 150 |
| Melting Completion (Liquidus), °C | 600 | |
| 860 |
| Melting Onset (Solidus), °C | 440 | |
| 850 |
| Specific Heat Capacity, J/kg-K | 980 | |
| 400 |
| Thermal Expansion, µm/m-K | 26 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 3.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 55 | |
| 3.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 23 |
| Density, g/cm3 | 1.8 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 22 | |
| 2.8 |
| Embodied Energy, MJ/kg | 160 | |
| 46 |
| Embodied Water, L/kg | 980 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 5.9 | |
| 4.6 to 200 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 120 | |
| 460 to 2450 |
| Stiffness to Weight: Axial, points | 14 | |
| 8.1 |
| Stiffness to Weight: Bending, points | 66 | |
| 20 |
| Strength to Weight: Axial, points | 27 | |
| 15 to 26 |
| Strength to Weight: Bending, points | 39 | |
| 16 to 23 |
| Thermal Shock Resistance, points | 10 | |
| 14 to 23 |
Alloy Composition
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| Aluminum (Al), % | 8.3 to 9.7 | |
| 0 |
| Beryllium (Be), % | 0.00020 to 0.00080 | |
| 0 |
| Copper (Cu), % | 0 to 0.050 | |
| 62.5 to 64.5 |
| Iron (Fe), % | 0 to 0.0050 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Magnesium (Mg), % | 86.1 to 89.8 | |
| 0 |
| Manganese (Mn), % | 0.15 to 1.5 | |
| 11.5 to 12.5 |
| Nickel (Ni), % | 0 to 0.0050 | |
| 0 |
| Silicon (Si), % | 0 to 0.050 | |
| 0 |
| Zinc (Zn), % | 1.7 to 2.3 | |
| 22.5 to 26 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.2 |