CW511L
CW511L is a lead-free material designed for applications involving drinking water. It’s suitable for scenarios where water qualities demand dezincification-resistant properties. CW511L can be employed in situations with no high mechanical stresses. This alloy complies with the dezincification-resistant material requirements as per ISO 6509.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 61.50 | 63.50 |
| Pb | – | 0.20 |
| Fe | – | 0.10 |
| Sn | – | 0.10 |
| Ni | – | 0.30 |
| Al | – | 0.05 |
| As | 0.02 | 0.15 |
| Total Others | – | 0.20 |
| Zn | Remainder | |
MECHANICAL PROPERTIES ACCORDING TO EN12164 CW511L (AS PER TEMPER R320)
| Range (mm) | From | To | UTS Min (N/mm²) | PS Min (N/mm²) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 6 | 60 | 320 | 200 | 20 | – | – |
| Hex (A/F) | 5 | 50 | 320 | 200 | 20 | – | – |
| Square (A/F) | 5 | 50 | 320 | 200 | 20 | – | – |
| PHYSICAL PROPERTIES | |
| Product Property | Metric |
| Coefficient of Thermal Expansion | 21.7 10 -6 (20-300 C) |
| Density | 8.41 gm/cm3 @ 20 C |
| Electrical Conductivity | 0.164 MegaSiemens/cm @ 20 C |
| Electrical Resistivity | 6.15 microhm-cm @ 20 C |
| Melting Point Liquid US | 904 C |
| Melting Point Solid US | 899 C |
| Modulas of Elasticity in Tension | 103400 MPa |
| Modulas of Rigidity | 38610 MPa |
| Specific Gravity | 8.39 |
| FABRICATION PROPERTIES | |
| Joining Technique | Suitability |
| Brazing | Excellent |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Fair |
| Capacity for Being Hot Formed | Excellent |
| Coated Metal Arc Welding | Not Recommended |
| Forgeability Rating | 90 |
| Gas Sheilded Arc Welding | Fair |
| Machinability rating | 40 |
| Oxyacetylene Welding | Good |
| Seam Weld | Not Recommended |
| Soldering | Excellent |
| Spot Weld | Good |
