CW506L
CuZn33 is an alloy that blends superb cold forming characteristics with solid mechanical strength. It also boasts excellent capabilities for hot forming, and it excels in soldering and brazing applications. Thanks to its exceptional deep drawing attributes, CuZn33 is often referred to as “deep-draw” brass.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 66.00 | 68.00 |
| Pb | – | 0.05 |
| Fe | – | 0.05 |
| Sn | – | 0.10 |
| Ni | – | 0.30 |
| Al | – | 0.02 |
| Total Others | – | 0.10 |
| Zn | Remainder | |
MECHANICAL PROPERTIES ACCORDING TO EN12163 (AS PER TEMPER R350)
| Range (mm) | From | To | UTS Min (MPa) | UTS Max (MPa) | PS Min (MPa) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 1.5 | 75 | 350 | 430 | 170 | 23 | – | – |
| Hex (A/F) | 3 | 70 | 350 | 430 | 170 | 23 | – | – |
| Square (A/F) | 3 | 60 | 350 | 430 | 170 | 23 | – | – |
| PHYSICAL PROPERTIES | |
| Melting Point – Liquidus°F | 1710 |
| Melting Point – Solidus°F | 1660 |
| Density lb/cu in. at 68°F | 0.306 |
| Specific Gravity | 8.47 |
| Electrical Conductivity % IACS at 68°F | 27 |
| Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F | 67 |
| Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) | 11.3 |
| Specific Heat Capacity Btu/ lb /°F at 68°F | 0.09 |
| Modulus of Elasticity in Tension ksi | 15000 |
| Modulus of Rigidity ksi | 5600 |
| FABRICATION PROPERTIES | |
| Technique | Suitability |
| Soldering | Excellent |
| Brazing | Excellent |
| Oxyacetylene Welding | Good |
| Gas Shielded Arc Welding | Fair |
| Coated Metal Arc Welding | Not Recommended |
| Spot Weld | Good |
| Seam Weld | Not Recommended |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Poor |
| Machinability Rating | 30 |
