CZ133
CZ133, commonly known as naval brass, is a favored choice frequently employed across a diverse spectrum of marine and subsea applications. Renowned for its exceptional combination of superior strength and robust corrosion resistance, this brass alloy also demonstrates effective property retention even at cryogenic temperatures. Notably, CZ133 displays excellent hot formability and showcases a highly commendable level of corrosion resistance.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 59.00 | 62.00 |
| Pb | – | 0.20 |
| Sn | 0.50 | 1.00 |
| Fe | – | 0.10 |
| Total Others | – | 0.40 |
| Zn | Remainder | |
MECHANICAL PROPERTIES ACCORDING TO BS2874 (AS PER TEMPER M)
| Range (mm) | From | To | UTS Min (N/mm²) | PS Min (N/mm²) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 6 | 18 | 400 | 170 | 20 | – | – |
| 18 | 40 | 350 | 150 | 25 | – | – | |
| Hex (A/F) | 6 | 18 | 400 | 170 | 20 | – | – |
| 18 | 40 | 350 | 150 | 25 | – | – | |
| Square (A/F) | 6 | 18 | 400 | 170 | 20 | – | – |
| 18 | 40 | 350 | 150 | 25 | – | – | |
| Rectangle (Thickness) | 6 | 18 | 400 | 170 | 20 | – | – |
| 18 | 40 | 350 | 150 | 25 | – | – |
| PHYSICAL PROPERTIES | |
| Melting Points – Liquidus 0F | 1650 |
| Melting Points – Solidus 0F | 1630 |
| Density lb/cu in. at 68 0F | 0.304 |
| Specific Gravity | 8.41 |
| Electrical Conductivity % IACS at 68 0F | 26 |
| Thermal conductivity Btu/ Sq ft / ft hr / 0F at 680F | 67 |
| Coefficient of Thermal Expansion 68-57210 -6 Per 0F (68-5720F) | 11.8 |
| Specific Heat capacity Btu/ lb /0F at 680F | 0.09 |
| Modulus of Elasticity in Tension ksi | 15000 |
| Modulus of Rigidity ksi | 5600 |
| FABRICATION PROPERTIES | |
| Technique | Suitability |
| Capacity for being Cold Worked | Fair |
| Hot Worked | Excellent |
| Machinability Rating | 30% |
| Forgeability Rating | 90% |
| Silver Alloy Brazing | Excellent |
| Soft Soldering | Excellent |
| Oxyacetylene Welding | Good |
