ASTM B780 Alloy vs. C35600 Brass
ASTM B780 alloy belongs to the otherwise unclassified metals classification, while C35600 brass belongs to the copper alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is ASTM B780 alloy and the bottom bar is C35600 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 83 | |
| 100 |
| Poisson's Ratio | 0.36 | |
| 0.31 |
| Shear Modulus, GPa | 30 | |
| 39 |
| Tensile Strength: Ultimate (UTS), MPa | 330 to 590 | |
| 340 to 650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 170 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 380 |
| Thermal Expansion, µm/m-K | 18 | |
| 21 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 70 to 76 | |
| 26 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 62 to 68 | |
| 29 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 8.1 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.5 | |
| 7.0 |
| Stiffness to Weight: Bending, points | 14 | |
| 19 |
| Strength to Weight: Axial, points | 9.1 to 16 | |
| 11 to 22 |
| Strength to Weight: Bending, points | 11 to 15 | |
| 13 to 21 |
| Thermal Shock Resistance, points | 16 to 29 | |
| 11 to 22 |
Alloy Composition
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| Cadmium (Cd), % | 0 to 0.050 | |
| 0 |
| Copper (Cu), % | 23.5 to 25.7 | |
| 60 to 63 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 to 0.030 | |
| 2.0 to 3.0 |
| Nickel (Ni), % | 0.35 to 0.65 | |
| 0 |
| Silver (Ag), % | 74 to 76 | |
| 0 |
| Zinc (Zn), % | 0 to 0.060 | |
| 33.4 to 38 |
| Residuals, % | 0 | |
| 0 to 0.5 |