C21000 Brass vs. AWS BAg-28
C21000 brass belongs to the copper alloys classification, while AWS BAg-28 belongs to the otherwise unclassified metals. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is C21000 brass and the bottom bar is AWS BAg-28.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 88 |
| Poisson's Ratio | 0.34 | |
| 0.33 |
| Shear Modulus, GPa | 43 | |
| 33 |
| Tensile Strength: Ultimate (UTS), MPa | 240 to 450 | |
| 150 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 140 |
| Melting Completion (Liquidus), °C | 1070 | |
| 710 |
| Melting Onset (Solidus), °C | 1050 | |
| 650 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 320 |
| Thermal Expansion, µm/m-K | 18 | |
| 21 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.8 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 40 |
| Embodied Energy, MJ/kg | 42 | |
| 630 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.2 | |
| 5.6 |
| Stiffness to Weight: Bending, points | 18 | |
| 17 |
| Strength to Weight: Axial, points | 7.4 to 14 | |
| 4.7 |
| Strength to Weight: Bending, points | 9.6 to 15 | |
| 7.1 |
| Thermal Shock Resistance, points | 8.1 to 15 | |
| 5.8 |
Alloy Composition
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| Copper (Cu), % | 94 to 96 | |
| 29 to 31 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Silver (Ag), % | 0 | |
| 39 to 41 |
| Tin (Sn), % | 0 | |
| 1.5 to 2.5 |
| Zinc (Zn), % | 3.7 to 6.0 | |
| 26 to 30 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.15 |