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Admiralty Brass Tubes

Brass tubes – C44300 - has good corrosion resistance and is specially used for tubing of steam condensers cooled with fresh, salt or brackish water. Admiralty metal tubes are also used for heat exchangers in oil refineries, in which corrosion from sulfur compounds and contaminated water may be very severe, and for feed-water heaters and heat-exchanger equipment as well as other industrial processes.

Chemcial Composition

UNS No. C44300 – BSI No. CZ111 ISO Name CuZn28Sn1
Chemical Comp. (%) Cu 70 ~ 73 / Sn 0.9 ~ 1.2 / Pb 0.07 / Fe 0.06 max / Zn rem / As 0.02 ~ 0.06
ASTM Spec. B 111, B 395
ASME Spec. SB 111, SB 395
Applications Condenser, Evaporator and Heat Exchanger tubes; Distiller tubing.
Temper O61 Annealed

Chemcial Composition

Properties * Metric English
Density 8.53 g/cc 0.308 lb/in³
Tensile Strength, min. 310 MPa 45 ksi
Yield Strength, min. 105 MPa 15 ksi
CTE, linear 20.2 10-6/°C @ 20.0 – 300 °C 11.2 10-6/°F @ 70.0 – 570 °F
Specific Heat Capacity 0.09 cal/g-°C @ 20ºC 0.09 BTU/lb-°F @ 70ºF
Thermal Conductivity 109 W/m-K @ 20.0 °C 64 BTU/ft2/ft/h/°F @ 70.0 °F
Melting Point 899 ~ 938 °C 1650 ~ 1720 °F

KOBSINDIA exports Duplex Steel BRASS Tube to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.

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