C28500 Muntz Metal vs. C27200 Brass
Both C28500 Muntz Metal and C27200 brass are copper alloys. They have a moderately high 95% of their average alloy composition in common.
For each property being compared, the top bar is C28500 Muntz Metal and the bottom bar is C27200 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Elongation at Break, % | 20 | |
| 10 to 50 |
| Poisson's Ratio | 0.3 | |
| 0.31 |
| Rockwell B Hardness | 150 | |
| 53 to 86 |
| Shear Modulus, GPa | 40 | |
| 40 |
| Shear Strength, MPa | 320 | |
| 230 to 320 |
| Tensile Strength: Ultimate (UTS), MPa | 520 | |
| 370 to 590 |
| Tensile Strength: Yield (Proof), MPa | 380 | |
| 150 to 410 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 170 |
| Maximum Temperature: Mechanical, °C | 110 | |
| 130 |
| Melting Completion (Liquidus), °C | 900 | |
| 920 |
| Melting Onset (Solidus), °C | 890 | |
| 870 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 100 | |
| 120 |
| Thermal Expansion, µm/m-K | 21 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 29 | |
| 28 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 33 | |
| 31 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 24 |
| Density, g/cm3 | 7.9 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 2.7 |
| Embodied Energy, MJ/kg | 46 | |
| 45 |
| Embodied Water, L/kg | 320 | |
| 320 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 94 | |
| 30 to 270 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 700 | |
| 110 to 810 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 20 | |
| 19 |
| Strength to Weight: Axial, points | 18 | |
| 13 to 20 |
| Strength to Weight: Bending, points | 18 | |
| 14 to 19 |
| Thermal Diffusivity, mm2/s | 33 | |
| 37 |
| Thermal Shock Resistance, points | 17 | |
| 12 to 20 |
Alloy Composition
| Copper (Cu), % | 57 to 59 | |
| 62 to 65 |
| Iron (Fe), % | 0 to 0.35 | |
| 0 to 0.070 |
| Lead (Pb), % | 0 to 0.25 | |
| 0 to 0.070 |
| Zinc (Zn), % | 39.5 to 43 | |
| 34.6 to 38 |
| Residuals, % | 0 | |
| 0 to 0.3 |