CW617N
CW617N is the benchmark material for hot working applications. The moderate lead content enhances the machinability of drop-forged components. Due to its composition, this alloy is also well-suited for crafting intricate profiles and producing drawn shapes.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 57.00 | 59.00 |
| Al | – | 0.05 |
| Fe | – | 0.30 |
| Ni | – | 0.30 |
| Pb | 1.60 | 2.50 |
| Sn | – | 0.30 |
| Total Others | – | 0.20 |
| Zn | Remainder | |
MECHANICAL PROPERTIES ACCORDING TO EN12164 (AS PER TEMPER R430)
| Range (mm) | From | To | UTS Min (N/mm²) | PS Min (N/mm²) | Elongation Min (%) | Hardness Min (HV) | Hardness Max (HV) | |
| Round (Dia) | 2 | 40 | 430 | 220 | 10 | – | – | |
| Hex (A/F) | 2 | 35 | 430 | 220 | 10 | – | – | |
| Square (A/F) | 2 | 35 | 430 | 220 | 10 | – | – | |
| Rectangle (Thickness) | 3 | 40 | 430 | 220 | 10 | – | – | |
| 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 |
