CZ107 these brasses have relatively good corrosion resistance, are moderately high in strength, and in some forms, have very good ductility. They are available in many forms including rod, bar, sheet, plate and more.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 64.00 | 67.00 |
| Pb | – | 0.10 |
| Fe | – | 0.10 |
| Total Others | – | 0.50 |
| Zn | Remainder |
MECHANICAL PROPERTIES ACCORDING TO BS2873 (AS PER TEMPER 1/2H)
| Range | From | To | UTS Min (MPa) | UTS Max (MPa) | PS Min (MPa) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 1.5 | 75 | 460 | 620 | – | – | – | – |
| Hex (A/F) | 3 | 70 | 460 | 620 | – | – | – | – |
| Square (A/F) | 3 | 60 | 460 | 620 | – | – | – | – |
| Rectangle (Thickness) | 3 | 50 | 460 | 620 | – | – | – | – |
| 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 |
| Poor | Poor |
| Machinability Rating | 30 |
TYPICAL USES
- Architecture
- Automotive
- Builders Hardware
- Electrical
- Fasteners
- Industrial
- Marine
- Plumbing
