ASTM B522 Class II vs. C99400 Brass
ASTM B522 class II belongs to the otherwise unclassified metals classification, while C99400 brass belongs to the copper alloys. There are 19 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is ASTM B522 class II and the bottom bar is C99400 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 96 | |
| 120 |
| Poisson's Ratio | 0.41 | |
| 0.34 |
| Shear Modulus, GPa | 34 | |
| 44 |
| Tensile Strength: Ultimate (UTS), MPa | 280 to 490 | |
| 460 to 550 |
| Tensile Strength: Yield (Proof), MPa | 120 to 210 | |
| 230 to 370 |
Thermal Properties
| Latent Heat of Fusion, J/g | 77 | |
| 230 |
| Melting Completion (Liquidus), °C | 1030 | |
| 1070 |
| Melting Onset (Solidus), °C | 1030 | |
| 1020 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 400 |
| Thermal Expansion, µm/m-K | 15 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 17 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 5.7 | |
| 17 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.7 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 75 to 230 | |
| 230 to 590 |
| Stiffness to Weight: Axial, points | 3.1 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 19 |
| Strength to Weight: Axial, points | 4.4 to 7.8 | |
| 15 to 17 |
| Strength to Weight: Bending, points | 5.5 to 8.0 | |
| 15 to 17 |
| Thermal Shock Resistance, points | 13 to 24 | |
| 16 to 19 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 0.5 to 2.0 |
| Copper (Cu), % | 0 | |
| 83.5 to 96.5 |
| Gold (Au), % | 68.5 to 69.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 1.0 to 3.0 |
| Lead (Pb), % | 0 | |
| 0 to 0.25 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 1.0 to 3.5 |
| Platinum (Pt), % | 5.5 to 6.5 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0.5 to 2.0 |
| Silver (Ag), % | 24.5 to 25.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0.5 to 5.0 |
| Residuals, % | 0 to 0.26 | |
| 0 to 0.3 |