| Product Name: | Copper Alloy Seamless Tubes | Standard: | ASTM B111 / ASME SB111 |
|---|---|---|---|
| Material: | C44300 ， C68700， C71500， C70600， C71640， C12200， Etc. | OD: | 1/4′ ， 3/8’， 1/2’， 5/8’， 3/4’， 1’， 1.1/4’， Etc. |
| WT: | 10 – 25 BWG | Length: | Single Random， Double Random & Cut Length |
| Type: | Seamless | End: | Plain Ends / Beveled Ends |
| Temper: | O61 Annealed / HR50 Drawn & Stress Relieved | Application: | Heat Exchangers， Refineries， Power Plants， Desalination Plants， Ship Building & Ship Repairs， Condensers， Ferrules， Distillers |
| High Light: | Annealed Copper Nickel Alloy Pipe， CuNi30Mn1Fe Copper Nickel Alloy Tube， O61 Copper Alloy Tube | ||
ASTM B111 Annealed O61 C71640 / CW353H Copper Nickel Alloy Seamless Tube for Heat Exchanger
TONG CHUANG GROUP supply copper alloy tubes containing grade C44300， C68700， C71500， C70600， C12200， etc. Tubes in a variety of sizes widely used for marine applications， condenser， heater， equipment， etc.
66-30-2-2 Cu-Ni (C71640， CW353H) Tube is a modified version of 70-30 alloy tube and contains 2% iron and 2% Mn and can withstand higher flow rates than 90-10 and 70-30. The other important note is that it has slightly less resistance to localized corrosion. These C71640 products are mainly used as condenser tubing. Commercially， UNS C71640 condenser tubes are mainly in demand by Industrial Plants. It was originally developed for higher resistance to erosion corrosion in the presence of suspended solids and has been extremely successful in multi-stage flash desalination plants， particularly in the heat rejection and brine heater sections.
Advantage of CuNi Tubes:
- Simple alloying system with good weldability
- Excellent ductility and toughness
- Outstanding erosion corrosion performance
- Resistant to uniform and localised corrosion
- No effect of ambient seawater temperatures
- No effect of seawater chlorination
- Resistant to biofouling
- Resistant to stress-corrosion cracking
- Low maintenance costs
- A lot of design experience
Material Grades
| Material Designation | Corresponding Material Symbol | ||||
| ASTM B111 | BS2871 | JIS H3300 | DIN1785 | GB/T 8890 | |
| Copper Nickel | C70600 | CN102 | C7060 | CuNi10Fe1Mn | BFe10-1-1 |
| C71500 | CN107 | C7150 | CuNi30Mn1Fe | BFe30-1-1 | |
| C71640 | CN108 | C7164 | CuNi30Fe2Mn2 | BFe30-2-2 | |
| C70400 | — | — | — | BFe5-1.5-0.5 | |
| — | — | — | — | B7 | |
| Aluminium Brass | C68700 | CZ110 | C6870 | CuZn20AL2 | HAL77-2 |
| Admiralty Brass | C44300 | CZ111 | C4430 | CuZn28Sn1 | HSn70-1 |
| Boric Brass | — | — | — | — | Hsn70-1B |
| — | — | — | — | Hsn70-1 AB | |
| Arsenical Brass | — | CZ126 | — | — | H68A |
| Brass Tube | C28000/C27200 | CZ108 | C2800/C2700 | CuZn36/CuZn37 | H65/H63 |
Standard: ASTM B111， B466
Chemical Composition & Mechanical Properties
| Steel Grade | Cu | Sn | Al | As | Ni | Fe | Mn | Pb | Zn |
| C70400 | Remain | – | – | – | 4.8-6.2 | 1.3-1.7 | 0.3-0.8 | 0.05 max | 1.0 max |
| C70600 | Remain | – | – | – | 9.0-11.0 | 1.0-1.8 | 1.0 max | 0.05 max | 1.0 max |
| C71500 | Remain | – | – | – | 29.0-33.0 | 0.4-1.0 | 1.0 max | 0.05 max | 1.0 max |
| C71640 | Remain | – | – | – | 29.0-32.0 | 1.7-2.3 | 1.5-2.5 | 0.05 max | 1.0 max |
Applications
- Hydraulic lines
- Fish cages for aquaculture
- Heat exchangers and condensers
- Desalination units
- Sea water pipework
- Tubes for power plants and ships
- Offshore fire water systems
- Pumps， valves， sheathing and fittings for ship hulls
- Desalination units
- Hydraulic lines
- Fish cages for aquaculture
- Heat exchangers and condensers
- Sea water pipework
- Offshore fire water systems
- Tubes for power plants and ships
- Pumps， valves， sheathing and fittings for ship hulls
