C68700 Brass vs. ASTM A387 Grade 11 Steel
C68700 brass belongs to the copper alloys classification, while ASTM A387 grade 11 steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is C68700 brass and the bottom bar is ASTM A387 grade 11 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 41 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 390 | |
| 500 to 600 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 270 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 430 |
| Melting Completion (Liquidus), °C | 970 | |
| 1460 |
| Melting Onset (Solidus), °C | 930 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 470 |
| Thermal Conductivity, W/m-K | 100 | |
| 39 |
| Thermal Expansion, µm/m-K | 19 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 23 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 25 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 2.9 |
| Density, g/cm3 | 8.3 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 1.6 |
| Embodied Energy, MJ/kg | 46 | |
| 21 |
| Embodied Water, L/kg | 340 | |
| 53 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 90 | |
| 200 to 320 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 13 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 14 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 30 | |
| 11 |
| Thermal Shock Resistance, points | 13 | |
| 15 to 18 |
Alloy Composition
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| Aluminum (Al), % | 1.8 to 2.5 | |
| 0 |
| Arsenic (As), % | 0.020 to 0.1 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.050 to 0.17 |
| Chromium (Cr), % | 0 | |
| 1.0 to 1.5 |
| Copper (Cu), % | 76 to 79 | |
| 0 |
| Iron (Fe), % | 0 to 0.060 | |
| 96.2 to 97.6 |
| Lead (Pb), % | 0 to 0.070 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.4 to 0.65 |
| Molybdenum (Mo), % | 0 | |
| 0.45 to 0.65 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 | |
| 0.5 to 0.8 |
| Sulfur (S), % | 0 | |
| 0 to 0.025 |
| Zinc (Zn), % | 17.8 to 22.2 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |