C68000 Brass vs. AWS BVAg-29
C68000 brass belongs to the copper alloys classification, while AWS BVAg-29 belongs to the otherwise unclassified metals. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 16 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is C68000 brass and the bottom bar is AWS BVAg-29.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 73 |
| Poisson's Ratio | 0.3 | |
| 0.37 |
| Shear Modulus, GPa | 40 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 180 |
Thermal Properties
| Brazing Temperature, °C | 880 to 980 | |
| 710 to 790 |
| Latent Heat of Fusion, J/g | 170 | |
| 120 |
| Melting Completion (Liquidus), °C | 880 | |
| 710 |
| Melting Onset (Solidus), °C | 870 | |
| 620 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 270 |
| Thermal Expansion, µm/m-K | 21 | |
| 20 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.0 | |
| 9.7 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.3 | |
| 4.2 |
| Stiffness to Weight: Bending, points | 20 | |
| 14 |
| Strength to Weight: Axial, points | 14 | |
| 5.2 |
| Strength to Weight: Bending, points | 15 | |
| 7.3 |
| Thermal Shock Resistance, points | 13 | |
| 8.8 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.010 | |
| 0 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0010 |
| Carbon (C), % | 0 | |
| 0 to 0.0050 |
| Copper (Cu), % | 56 to 60 | |
| 22.5 to 25.5 |
| Indium (In), % | 0 | |
| 14 to 15 |
| Iron (Fe), % | 0.25 to 1.3 | |
| 0 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.0020 |
| Manganese (Mn), % | 0.010 to 0.5 | |
| 0 |
| Nickel (Ni), % | 0.2 to 0.8 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.0020 |
| Silicon (Si), % | 0.040 to 0.15 | |
| 0 |
| Silver (Ag), % | 0 | |
| 60.5 to 62.5 |
| Tin (Sn), % | 0.75 to 1.1 | |
| 0 |
| Zinc (Zn), % | 35.6 to 42.8 | |
| 0 to 0.0010 |
| Residuals, % | 0 to 0.5 | |
| 0 |