C21000 Brass vs. ASTM B522 Class I
C21000 brass belongs to the copper alloys classification, while ASTM B522 class I belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is C21000 brass and the bottom bar is ASTM B522 class I.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 96 |
| Elongation at Break, % | 2.9 to 50 | |
| 1.1 to 29 |
| Poisson's Ratio | 0.34 | |
| 0.41 |
| Shear Modulus, GPa | 43 | |
| 34 |
| Shear Strength, MPa | 180 to 280 | |
| 180 to 280 |
| Tensile Strength: Ultimate (UTS), MPa | 240 to 450 | |
| 280 to 490 |
| Tensile Strength: Yield (Proof), MPa | 69 to 440 | |
| 120 to 210 |
Thermal Properties
| Latent Heat of Fusion, J/g | 200 | |
| 77 |
| Melting Completion (Liquidus), °C | 1070 | |
| 1030 |
| Melting Onset (Solidus), °C | 1050 | |
| 1030 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 160 |
| Thermal Expansion, µm/m-K | 18 | |
| 15 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 56 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 57 | |
| 5.8 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.8 | |
| 17 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 13 to 100 | |
| 4.5 to 64 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 21 to 830 | |
| 75 to 230 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 3.1 |
| Stiffness to Weight: Bending, points | 18 | |
| 8.9 |
| Strength to Weight: Axial, points | 7.4 to 14 | |
| 4.4 to 7.8 |
| Strength to Weight: Bending, points | 9.6 to 15 | |
| 5.5 to 8.0 |
| Thermal Shock Resistance, points | 8.1 to 15 | |
| 13 to 24 |
Alloy Composition
| Copper (Cu), % | 94 to 96 | |
| 0 |
| Gold (Au), % | 0 | |
| 68 to 70 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Platinum (Pt), % | 0 | |
| 5.0 to 7.0 |
| Silver (Ag), % | 0 | |
| 23.5 to 26.5 |
| Zinc (Zn), % | 3.7 to 6.0 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.35 |