C69700 Brass vs. AWS ERNiCu-7
C69700 brass belongs to the copper alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. They have a modest 29% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is C69700 brass and the bottom bar is AWS ERNiCu-7.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 160 |
| Elongation at Break, % | 25 | |
| 34 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 41 | |
| 61 |
| Tensile Strength: Ultimate (UTS), MPa | 470 | |
| 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 240 | |
| 280 |
| Melting Completion (Liquidus), °C | 930 | |
| 1280 |
| Melting Onset (Solidus), °C | 880 | |
| 1240 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 440 |
| Thermal Conductivity, W/m-K | 43 | |
| 20 |
| Thermal Expansion, µm/m-K | 19 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 50 |
| Density, g/cm3 | 8.3 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 8.5 |
| Embodied Energy, MJ/kg | 44 | |
| 120 |
| Embodied Water, L/kg | 310 | |
| 250 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.3 | |
| 10 |
| Stiffness to Weight: Bending, points | 19 | |
| 21 |
| Strength to Weight: Axial, points | 16 | |
| 18 |
| Strength to Weight: Bending, points | 16 | |
| 17 |
| Thermal Diffusivity, mm2/s | 13 | |
| 5.3 |
| Thermal Shock Resistance, points | 16 | |
| 19 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 1.3 |
| Carbon (C), % | 0 | |
| 0 to 0.15 |
| Copper (Cu), % | 75 to 80 | |
| 18.3 to 36.5 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 2.5 |
| Lead (Pb), % | 0.5 to 1.5 | |
| 0 |
| Manganese (Mn), % | 0 to 0.4 | |
| 0 to 4.0 |
| Nickel (Ni), % | 0 | |
| 62 to 69 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 2.5 to 3.5 | |
| 0 to 1.3 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 | |
| 1.5 to 3.0 |
| Zinc (Zn), % | 13.9 to 22 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |