CW619N
CW619, categorized as brass, presents itself as an easily extrudable alloy that seamlessly integrates alpha and beta phases along with a minor inclusion of aluminum, resulting in a distinct and vibrant golden hue. The incorporation of lead imparts free cutting attributes. CW616 is provided in the form of extruded rods and flats, commonly employed in the realm of builders’ hardware.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 57.00 | 59.00 |
| Pb | 1.60 | 2.50 |
| Sn | 0.20 | 0.50 |
| Fe | – | 0.40 |
| Al | – | 0.10 |
| Ni | – | 0.30 |
| Total Others | – | 0.20 |
| Zn | Remainder | |
MECHANICAL PROPERTIES ACCORDING TO EN12167 (AS PER TEMPER H110)
| Range (mm) | From | To | UTS Min | PS Min | Elongation Min (%) | Hardness Min (HB) | Hardness Max | |
| Round (Dia) | 6 | 60 | – | – | – | 110 | – | |
| Hex (A/F) | 6 | 60 | – | – | – | 110 | – | |
| Square (A/F) | 6 | 60 | – | – | – | 110 | – | |
| Rectangle (Thickness) | 6 | 60 | – | – | – | 110 | – | |
| PHYSICAL PROPERTIES | ||
| Physical Properties | Metric | English |
| Density | 8.40 g/cc | 0.303 lb/in3 |
| CTE, linear | 26.0 ᶙm/m-˚C | 14.4 ᶙin/in-˚F |
| Specific Heat Capacity | 0.380 J/g-˚C | 0.0908 BTU/lb-˚F |
| Thermal Conductivity | 113 W/m-K | 784 BTU-in/hr-ft²-˚F |
| Melting Point | 880-900 ˚C | 1620 – 1650 ˚F |
| Solidus | 880 ˚C | 1620 ˚F |
| Liquidus | 900 ˚C | 1650˚F |
| FABRICATION PROPERTIES | |
| Forming | Suitability |
| Machinability (CuZn39Pb3 = 100 %) | 95.00% |
| Capacity for Being Cold Worked | Poor |
| Capacity for Being Hot Worked | Excellent |
