Copper and Copper Alloy Tubes
Acree offers a wide range of copper and copper alloy tubes
- Brass Tube
- Copper Tube
- Cu-Ni Tube
- Aluminum Brass Tube
- Tests per Specification
Specification as per SB-111(latest edition),all tests to be carried out and reports will be submitted with the suppy.
Test includes:
-Physical,Chemical&Mechnical analyzed test report
-Expansion test report
-Temper/residual stress test
-Non-destructive test such as 100% eddy current test,100% hydraulic test
-Dimensional check including density
-Workmanship ,Finish and Appearance
Tubes will be made by the seamless process and furnished in the annealed temper.
Copper Nickel 70/30 tubes – C71500
Copper Nickel 70/30 (C71500) is renowned for its exceptional resistance to impingement attack and corrosion from most acids and waters, making it the ideal choice for severe corrosive environments. This alloy offers superior service life compared to other copper alloys. It is widely used in applications such as condensers, evaporators, heat exchangers, distiller tubing, and saltwater systems.
These tubes conform to ASTM SB 111, SB 395, and SB 466 standards, with delivery conditions of O61 Annealed / HR50 Drawn & Stress Relieved.
Related Material Grades:
- EN12451: CuNi30Mn1Fe (CW354H)
- DIN17664/1785: CuNi30Mn1Fe
- BS2871: CN107
- JIS H3300: C7150
- GB/T8890: BFe30-1-1
| Properties | Metric | Imperial |
| Density | 8.94 g/cc | 0.323 lb/in³ |
| CTE, linear | 16.2 10-6/°C @ 20.0 – 300 °C | 9.0 10-6/°F @ 70.0 – 570 °F |
| Specific Heat Capacity | 0.09 cal/g-°C @ 20ºC | 0.09 BTU/lb-°F @ 70ºF |
| Thermal Conductivity | 29 W/m-K @ 20.0 °C | 17 BTU/ft2/ft/h/°F @ 70.0 °F |
| Melting Point | 1171 – 1238 °C | 2140 – 2260 °F |
Theoretical weight Calculation
Average Wall: (OD-WnxWT x00284- kg/m (all sizes in mm)
Minimum Wall:(OD-WT)x 0.0295-Kg/m (all sizes in mm)
Admiralty Brass Tubes (C44300)
Admiralty Brass (C44300) is known for its excellent corrosion resistance, making it ideal for steam condenser tubing, especially in systems cooled with fresh, salt, or brackish water. This alloy is also widely used in heat exchangers for oil refineries, where exposure to sulfur compounds and contaminated water can be particularly harsh. In addition, Admiralty Brass is commonly applied in feed-water heaters, heat exchangers, and various other industrial processes.
Related Material Grades:
- EN12451: CuZn28Sn1As (CW706R)
- DIN17660/1785: CuZn28Sn1
- BS2871: CZ111
- JIS H3300: C4430
- GB/T8890: HSn70-1
| Properties | Metric | Imperial |
| Density | 8.53 g/cc | 0.308 lb/in³ |
| 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 |
Theoretical Weight Calculation:
Average Wall: (OD-WnxWT x00265- kg/m (all sizes in mm)
Minimum Wall:(OD-WT)x 0.0275-Kg/m (all sizes in mm)
Aluminum Brass tubes C68700
C68700, also known as CuZn20Al2As, is characterized by its exceptional resistance to impingement attack, making it highly suitable for applications in environments with high cooling water velocities. This alloy is particularly recommended for use in both marine and land-based power stations, where such conditions are common. It is also the preferred choice for heat exchangers exposed to saline water, offering superior protection against corrosion. The addition of arsenic in the alloy effectively resolves the issue of dezincification, enhancing its long-term performance and reliability.
Related Material Grades:
- EN12451: CuZn20Al2As (CW706R)
- DIN17660/1785: CuZn20Al2
- BS2871: CZ110
- JIS H3300: C6870
- GB/T8890: HAl77-2
| Density | 8.33 g/cc | 0.301 lb/in³ |
| 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 |
Theoretical Weight Calculation:
Average Wall: (OD-WnxWT x00265- kg/m (all sizes in mm)
Minimum Wall:(OD-WT)x 0.0275-Kg/m (all sizes in mm)
Related Products
Yes,From melting to tube-rolling, cold-drawing, heat treatment, and tubular parts processing, our fully-integrated manufacturing process ensures precision and quality at every step. We specialize in designing tailor-made products that meet our customers’ unique requirements, enhancing product durability and optimizing operational efficiency.
By leveraging advanced technologies and expertise, we deliver solutions that not only meet but exceed expectations, ensuring long-lasting performance in the most demanding applications.