CW511L is a lead free material suited for the use in drinking water applications. It can be used for water qualities that require dezincification resistant material. CW511L can be used where no high mechanical stresses occur. This alloy meets the requirements for dezincification resistant material according to 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 |
TYPICAL USES
- Plumbing
- Plumbing Fitting
- Forging
- Bending
- Riveting
