Inhibited Admiralty 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.

 

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

 

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

 

󰀍select for complete alloy information

C12200 CopperC68700 Aluminum BrassC70600 CuNi 10%C71500 CuNi 30%N04400 NiCu 400

 

 

 

* The information provided in this page includes typical values “only” for general reference and information. It is not intended for specification, design or engineering purposes.