ASTM B111 UNS C68700 Seamless Aluminum Brass Tubes EN 12451 – CuZn20AI2As Al Brass Tubes
We supply high quality ASTM B111 C68700 Aluminum Brass tube which is widely used in applications of air conditioner, refrigeration, heat exchanger, petroleum industry, power station etc.
ASTM B 111 Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock , condenser tube
ASTM B111 C68700 Aluminum Brass tube
C68700 has especially good corrosion resistance properties in sea water. both C44300 & C68700 have good corrosion resistance. C68700 annealed in O61 Temper. Tensile strength minimum in 345Mpa, Yield Strength minimum in 125Mpa.
C68700 density in 8.33g/cm3, 0.301lb/in.3
Typical Application of C68700 Aluminum Brass
a: Condenser Tube, Evaporator Tubes, Ferrules, Distiller Tubes, Heat Exchanger Tubes
C68700 aluminium brass tubes are widely used in “Seawater desalting plants”
ASTM B111 C68700 Chemical Composition
Element Weight %
Cu 76.0-79.0
Zn Reminder
Al 1.8-2.5
As 0.02-0.06
Pb 0.07
Fe 0.06 max
We can supply tubes in Copper and Copper Alloys for many applications
Seamless tubes for heat exchanger and condensers
Seamless copper tubes for water and gas in sanitary and heating applications
Seamless copper tubes for air conditioning and refrigeration
Seamless round tubes for general purpose
Non-standard products could be supplied on customer’s request.
Aluminum-Brass-Tubes-C68700-CuZn20Al2-CZ110
UNS No. C68700 – BSI No. CZ110 – ISO Name CuZn22AI2
Chemical Comp. (%) Cu 76 ~ 79 / Al 1.8 ~ 2.5 / 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
ASTM B111 C68700 Aluminum Brass “Arsenical” UNS CDA101, ASTM B111, ASTM B395, ASTM B187, ASTM B152.
C68700 has especially good corrosion resistance properties in sea water. C44300 and C68700 have good corrosion resistance. C68700 annealed in O61 Temper. Tensile strength minimum in 345Mpa, Yield Strength minimum in 125Mpa.
C68700 density in 8.33g/cm3, 0.301lb/in.3
Typical Application of C68700 Aluminum Brass “Arsenical”
Industrial: Condenser Tube, Evaporator Tubes, Ferrules, Distiller Tubes, Heat Exchanger Tubes
C68700 aluminium brass tubes are widely used in “Seawater desalting plants”
ASTM B111 C68700 Chemical Composition
Element Weight %
Cu 76.0-79.0
Zn Reminder
Al 1.8-2.5
As 0.02-0.06
Pb 0.07
Fe 0.06 max
ASTM B111 C68700 Properties
Properties * Metric English
Density 8.33 g/cc 0.301 lb/in³
Tensile Strength, min. 345 MPa 50 ksi
Yield Strength, min. 125 MPa 18 ksi
CTE, linear 18.5 10-6/°C @ 20.0 – 300 °C 10.3 10-6/°F @ 70.0 – 570 °F
Specific Heat Capacity 0.09 cal/g-°C @ 20ºC 0.09 BTU/lb-°F @ 70ºF
Thermal Conductivity 100.4 W/m-K @ 20.0 °C 58 BTU/ft2/ft/h/°F @ 70.0 °F
Melting Point 932 ~ 971 °C 1710 ~ 1780 °F
HEAT EXCHANGER AND CONDENSERS COPPER ALLOY TUBES
ASTM B-111 C71500 70/30 Cu-Ni TUBES
ASTM B-111 C44300 70/29/1 Cu-Zn-Ti TUBES
ASTM B-111 C70600 90/10 Cu-Ni TUBES
ASTM B-111 C68700 70/29/1 Cu-Al-Zn TUBES
ASTM B-680 C12200 99/0.5/0.5 Cu-P-Ni TUBES
Admiralty C44300 Highly resistant to general corrosion – where pressures, velocities and temperatures are moderate.
Alluminium Brass C68700 These tubes are especially adapted to resist corrosion by both salt and brackish waters.
Copper Nickel 90/10 C70600 This alloy is highly resistant to corrosion by turbulently flowing sea water indicate it to be an excellent condenser tube alloy for salt water use.
Copper Nickel 80/20 C71000 This alloy has intermediate properties between those of 10% and 30% copper nickel. Tubes of this alloy have found widest use in feedwater heaters and evaporators.
Copper Nickel 70/30 C71500 Condenser tubes of this alloy are giving long and dependable service at sea. It is also highly satisfactory for tubes in evaporators, condensers, and superheaters.
This alloy is particularly desirable where high temperatures are encountered.
SEAMLESS COPPER ALLOY TUBE HEAT EXCHANGER
SEAMLESS COPPER ALLOY CONDENSER TUBES
INTERNATIONAL STANDARDS
Material European American
Copper EN 12449 – Cu DHP ASTM B111 / ASTM B 75 C12200
Admiralty Brass EN 12451 – CuZn28Sn1As ASTM B111 C44300
Aluminum Brass EN 12451 – CuZn20AI2As ASTM B111 C68700
90/10 Copper Nickel EN 12451 – CuNi10Fe1Mn ASTM B111 C70600
70/30 Copper Nickel EN 12451 – CuNi30Fe1Mn ASTM B111 C71500
Copper Nickel 90/10 CUNI Flanges
ASTM Standard Copper Nickel Piping
Copper-Nickel Automotive Vehicle Brake Tubing
C64700 Nickel Silicon Copper Alloy Bar
Alloy Piping ASTM B111 Seamless Copper Nickel Pipe
Copper Nickel Tubes CuNi Pipes
