Description
| C44300 – Admiralty Brass – CuZn28Sn1As | Inhibited Admiralty brass tubes (C44300) are manufactured from a copper-zinc alloy with a small addition of tin and arsenic as a corrosion inhibitor, providing excellent resistance to polluted, brackish, and saline water. With more than 70% copper content, this alloy combines good thermal conductivity, mechanical strength, and enhanced corrosion resistance, making it ideal for demanding heat transfer applications.
C44300 admiralty brass tubes are widely used in steam condensers cooled by fresh, seawater, or brackish water. They are commonly applied in power generation, oil refining, marine engineering, and desalination systems, where resistance to sulfur compounds, organic contaminants, and aggressive cooling media is essential. The alloy delivers stable performance under elevated temperature and pressure conditions. |
| Applications | C44300 Admiralty brass tubes are commonly used in:
Steam condensers using fresh, brackish, or seawater |
| Key Benefits | Excellent corrosion resistance – inhibited alloy resists dezincification, pitting, and erosion in contaminated water Reliable in aggressive media – suitable for sulfur-bearing compounds and organic contaminants Good thermal conductivity – ensures efficient and stable heat transfer Adequate strength and ductility – performs well in high-pressure and thermal cycling conditions Long service life – reduces maintenance in harsh industrial environments Standards compliance – produced according to ASTM B111, B395 and ASME SB111, SB395 |
| Technical Specifications | UNS No. C44300 – BSI No. CZ111 – ISO Name CuZn28Sn1Chemical Composition (%) Cu: 70 – 73 Sn: 0.9 – 1.2 Pb: ≤ 0.07 Fe: ≤ 0.06 As: 0.02 – 0.06 Zn: BalanceASTM Specification B111, B395 ASME Specification Typical Applications Temper |
