Oct 28, 2025 Leave a message

C68700-Aluminum-Brass-Tube-.pdf

C68700 Thin-walled seamless round copper Condenser tube

GNEE can provide the form

UNS C68700 Copper Plate

C68700 Copper Metal Foil

Solid C68700 Copper Earth Rod

Flexible C68700 Copper Pipe

C68700 Copper Flexible Cable

 

Products Description

Inhibited Aluminum Brass tubes – C68700 – resists the action of high-velocity salt and blackish water and is commonly used for condenser tubes. The main characteristic of C68700 is its high resistance to impingement attack. Tubes of this alloys are recommended for use in Marine and Land Power Stations, in which cooling water velocities are high.

 

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

Hollow Thin Wall Copper TubeType K/L/M Copper Tube

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

 

Products provided by GNEE

Product Category Standard & Material Available Forms Thickness / Diameter Range Width / OD Range Length / Form Temper / State Surface Finish
Copper Sheet & Plate ASTM B152, B187
Pure Copper (C11000)
Phosphor Bronze, Brass
• Coil
• Sheet
• Plate
Sheet: 0.3 mm - 10.0 mm
Plate: 10.0 mm - 100 mm
100 mm - 2500 mm Coil: Custom
Sheet/Plate: 1000mm - 6000mm or Custom
• O (Soft Annealed)
• H02 (Half-Hard)
• H04 (Hard)
• H08 (Full-Hard)
• Mill (Bare)
• Clad
• Brushed
• Coated
Copper Rod & Bar ASTM B133, B187
Pure Copper, Tellurium Copper
Brass, Bronze
• Round Rod
• Square Bar
• Hexagonal Bar
• Flat Bar
Rod Dia.: 2.0 mm - 300 mm
Flat Bar Thk.: 3 mm - 50 mm
Flat Bar Width: 10 mm - 400 mm Straight: 1000mm - 6000mm
Coil (for small dia.)
• Annealed (Soft)
• Half-Hard
• Hard
• As Drawn
• Drawn (Smooth)
• Turned (Peeled)
• Ground (Polished)
Copper Wire ASTM B1, B3
Bare Copper, Tinned Copper
• Bare Wire
• Tinned Wire
• Stranded Wire
• Braided Wire
Solid Wire: 0.05 mm - 10.0 mm
Stranded: Custom (e.g., 7/0.2mm)
- Coil, Spool, Reel
Weight: Custom (e.g., 5kg, 25kg)
• Soft (Annealed)
• Hard Drawn
• Medium-Hard
• Bright Bare
• Electrotinned
• Oxidized-Resistant
Copper Tube & Pipe ASTM B75, B88
Seamless, Welded
DHP Copper (C12200)
• Straight Tube
• Coiled Tube
• Capillary Tube
• Square Tube
OD: 3 mm - 300 mm
Wall Thk.: 0.5 mm - 10.0 mm
- Straight: 1000mm - 8000mm
Coil: Custom Length
• Annealed (Soft, Bendable)
• Hard Drawn (Straight)
• Bare (Clean)
• Polished
• Plastic Capped
Copper Foil ASTM B370
Rolled Annealed (RA)
Electrodeposited (ED)
• Roll / Coil
• Strip
Thickness: 0.01 mm - 0.50 mm
(10 µm - 500 µm)
10 mm - 1300 mm Coil: Custom Length • As Rolled (Hard)
• Annealed (Soft, Ductile)
• Laminated
• Standard (One Side Bright)
• Double Side Bright
• Treated (for PCB)

 

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