C68700 tubes, also known as Aluminum Brass tubes, are made from a copper-zinc alloy with a small addition of aluminum. These tubes offer excellent corrosion resistance, good thermal conductivity, and high strength. It is important to consult with engineers or industry professionals to determine the most suitable tube material, size, and configuration for your specific application. They can provide guidance on optimizing heat transfer, selecting the appropriate tube design, and ensuring compatibility with the overall system requirements.
C68700 is a Copper Zinc Alloy containing Aluminum and small amount of Arsenic which is added as an inhibitor against dezincification. Inhibited Aluminum brass resists the action of high velocity salt and brackish water and is commonly used for condensor tubes. The outstanding characteristics of aluminum brass is the high resistance to impingement attack. Tubes of this alloy are recommended for use in marine and land power stations where cooling water velocities are high and where inhibited admiralty brass has failed from impingement.
Advantages of Copper Alloy Tube
The superior qualities of brass tube / copper nickel / aluminium tube make them the ideal products in a vast range of commercial, industrial and domestic applications. In addition to its well known traditional properties, electrical and thermal conductivity, malleability and resistance to corrosion – brass is far more versatile in combining with other metals to provide performance characteristics needed to satisfy today's increasingly complex demands. To meet the exact specifications of our customers, Austral Wright Metals sources, stocks and supplies products from leading copper and brass mills around the world.
Specification
| 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. | B111, B395 |
| ASME Spec. | SB111, SB395 |
| Applications | Condenser, Evaporator and Heat Exchanger tubes; Distiller tubing. |
| Temper | O61 Annealed |
Chemical properties
|
Property |
Value |
|---|---|
| Aluminium | 1.8 - 2.5 % |
| Arsenic | 0.02 - 0.06 % |
| Copper | 76 - 79 % |
| Iron | 0.06 % |
| Lead | 0.07 % |
Mechanical Property
|
Property |
Temperature |
Value |
Comment |
|---|---|---|---|
| Elastic modulus | 23.0 °C | 100-125 Gpa | Typical for Wrought Copper Brass |
| Shear modulus | 23.0 °C | 40 Gpa | Typical for Wrought Copper Brass |
| Tensile strength | 23.0 °C | 345 Mpa | |
| Yield strength Rp0.5 | 23.0 °C | 125 Mpa |
Thermal property
|
Property |
Temperature |
Value |
Comment |
|---|---|---|---|
| Coefficient of thermal expansion | 23.0 °C | 1.7E-5 - 2.1E-5 1/K | Typical for Wrought Copper Brass |
| Melting point | 875 - 1075 °C | Typical for Wrought Copper Brass | |
| Specific heat capacity | 23.0 °C | 371 - 418 J/(kg·K) | Typical for Wrought Copper Brass |
| Thermal conductivity | 23.0 °C | 100 - 234 W/(m·K) | Typical for Wrought Copper Brass |
Applications
Marine heat exchangers,
Condensers
Evaporators
Power Generation
Desalination Plants
Shipbuilding
Offshore and Marine Applications
HVAC Systems
Copper products that GNEE can provide
| Product Name | Copper Pipe |
| Standard | ASTM,JIS,DIN,GB,AISI,DIN,EN |
| Material | T1, T2, T3, C21000, C22000, C22600, C23000, C24000, C26000, C26130, C26800, C27000, C27200, C46500, C51000, C52100, C53400, C61300, C61400, C63000, C63800, C65100, C65500, H63, H65, H68, H70, H80, H85, H90, H96. |
| Purity | 99.9% |
| Technique | Cold drawn, hot rolled, cold rolled and others. |
| Side shape | Round, Square, Rectangular, ect |
| Outer Diameter | 6.35-406mm or Customizable |
| Thickness | 0.5-80mm or Customizable |
| Length | 1-12m or Customizable |
| Surface Treatment | Coating, Oxidation, Coating, Polishing, etc. |
| Type | Seamless, Welded |
| Origin | China |
| Delivery Time | 7-15 days, depending on the situation and quantity |
| Price Terms | EXW, FOB, CIF, CRF, CNF or others |
| Loading Port | Any port in China |
| Payment Term | TT, LC,Cash, Paypal, DP, DA,Western Union or Others. |
| Application | 1. Construction industry2. Mechanical production, energy extraction3. Home appliance industry, refrigeration industry, transportation industry, home decoration and bathroom4. Communication technology, infrastructure, municipal pipeline network, etc. |
| Packaging | Bundle, PVC Bag, Nylon Belt, Cable Tie, Standard export seaworthy package or as Reque |
| Processing Servic | Bending, Welding, Decoiling, Punching, Cutting and Others |
| Tolerance | ±1% |
|
Standard |
ASTMB152,B187,B133,B301,B196,B441,B465,JISH3250-2006, |
|
Material |
C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920, |
|
Diameter |
3mm~800mm |
|
Length |
1.0m 5.8m,6m,or as required |
|
Export to |
Singapore,India,Poland,Indonesia,Ukraine,Spain,Korea,Thailand,Canada,USA, |
|
Container Size |
20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) |
|
Price Term |
Ex-work, FOB, CFR, CIF, etc. |
|
Application |
Copper bar is widely used in boat building,War industry, Car industry and communication |
|
Package |
Standard export seaworthy package,suit for all kinds of transport,or as required. |
|
Contact |
If you have any question,please feel free to contact me. |
|
Product name |
Copper Strip / Copper tape / Copper sheets coil |
|
Shape |
strip,tape,band,coil,roll |
|
Standard |
ASTM, ISO, JIS, DIN, GB, EN |
|
Grade |
ASTM:C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920, |
|
MOQ |
300KG |
|
Temper |
1/4 hard,1/2hard,full hard,soft,etc |
|
Surface |
Mill finish, polished, anodizing, brushing, sand blasting, powder coating,etc |
|
Payment terms |
T/T,L/C,western union, Paypal |
|
Price terms |
CIF,CFR,FOB,CIF,EXW,CNF |
|
Width |
0.1-1500mm or customized |
|
Thickness |
0.1-50mm or customized |
|
Package |
Standard export seaworthy package or as required. |
|
Delivery time |
About 7~10 working days after deposit received |
|
Application |
1)Further making utensil. |
|
Product Name |
Copper Wire |
|
Type |
Insulated |
|
Payment term |
TT/Trade Insurance/Credit card |
|
Delivery time |
7-30days( Depend on the quantity) |
|
Shipping terms |
FOB CIF DDP EXW |
|
Thermal Class |
130/155/180/200/220 C |
|
Diameter |
0.04mm-6.0mm |
|
Enameled Type |
Polyester/Polyurethane/Polyesterimide/Polyamide-imide |
|
Application |
Motor Transformer Fan Speaker |
|
Conductor content |
99% |
Copper CNC machined parts
|
Product Name |
Copper Wire |
|
Type |
Insulated |
|
Payment term |
TT/Trade Insurance/Credit card |
|
Delivery time |
7-30days( Depend on the quantity) |
|
Shipping terms |
FOB CIF DDP EXW |
|
Thermal Class |
130/155/180/200/220 C |
|
Diameter |
0.04mm-6.0mm |
|
Enameled Type |
Polyester/Polyurethane/Polyesterimide/Polyamide-imide |
|
Application |
Motor Transformer Fan Speaker |
|
Conductor content |
99% |
About Us
We specialize in exporting premium copper products. Our manufacturing leverages continuous casting lines and precision drawing machines. Rigorous quality control, including eddy current testing and spectrometer analysis, guarantees the superior performance of our copper tubes and coils for global applications.
If you need any help, please contact us immediately!
Email address：sales@gneemetal.com
