NFA 51 102 Aluminium Brass Pipe, also called CuZn20Al2 and UNS C68700, is designed to perform reliably in various applications, including heat exchangers, condensers, marine equipment, and seawater cooling. It has aluminium and arsenic additions, which give excellent corrosion and dezincification resistance, impingement attack and resistance to turbulent seawater flow, making it ideal for high stress heat transfer applications. These are also aluminium brass pipes with a good thermal conductivity and a durability for continuous industrial use. They are manufactured in accordance with NFA 51 102 and can be supplied with dimensional inspection, chemical analysis, mechanical testing and material traceability documentation to project and procurement requirements. USA Piping manufactures NFA 51 102 aluminium brass pipe with full chemical analysis, mechanical testing and material traceability documentation on every order, supplying marine, power generation, desalination and industrial heat transfer projects.
Specifications of Nfa 51 102 Aluminium Brass Pipe
| Property / Category | Specification Detail |
|---|---|
| Grade / Designation | CuZn22 Al2 (Aluminium Brass) |
| Standard | NFA 51 102 |
| Material Origin | France / European Standard |
| Chemical Composition | Copper (Cu): 76–79%, Zinc (Zn): Balance, Aluminium (Al): 1.8–2.5%, Arsenic (As): 0.02–0.06% |
| Available Product Forms | Bar, Rod, Tube, Sheet, Plate |
| Product Type & Shape | Aluminium Brass Alloy (Round / Customized shapes) |
| Manufacturing Technique | Hot Rolled / Cold Rolled |
| Outer Diameter Range | 3 mm to 350 mm |
| Wall Thickness Range | 0.3 mm to 50 mm |
| Length | Up to 6000 mm (Customizable as required) |
| Delivery / Temper Condition | Annealed, Half Hard, Hard |
| Surface Finish | Bright / Polished / Annealed |
| Color | Golden Yellow |
| Tensile Strength | 370 – 500 MPa |
| Elongation | 25 – 45% |
| Hardness | 80 – 150 HB |
| Density | 8.4 g/cm³ |
| Machinability | Good |
| Corrosion Resistance | Excellent (especially in seawater and brine environments) |
Applications and Industrial Uses of Nfa 51 102 Aluminium Brass Pipe
- Seawater Condensers
- Marine Heat Exchangers
- Power Plant Condenser Systems
- Desalination Plants
- Shipboard Cooling Systems
- Offshore Cooling Equipment
- Industrial Heat Exchangers
- Seawater Cooling Systems
Frequently Asked Questions
What is NFA 51 102 Aluminium Brass Pipe?
NFA 51 102 is an aluminium brass grade containing copper, zinc, aluminium, and arsenic. It is used for tubes and pipes in heat-transfer and marine applications.
What is NFA 51 102 used for?
It is used in heat exchangers, condensers, desalination equipment, marine cooling systems, and seawater-handling equipment.
Is NFA 51 102 equivalent to UNS C68700?
Yes. NFA 51 102 is commonly associated with UNS C68700 (CuZn20Al2) aluminium brass, subject to the applicable standard requirements.
Are NFA 51 102 Aluminium Brass Pipes suitable for heat exchangers?
Yes. They provide good thermal conductivity and corrosion resistance, making them suitable for heat exchangers.
Can NFA 51 102 Aluminium Brass Pipes be used in condensers?
Yes. They are suitable for condenser tubes, particularly in marine and seawater cooling applications.
What is the difference between NFA 51 102 and BS 2871 CZ110?
Both are aluminium brass grades with similar copper, zinc, and aluminium compositions, but they are specified under different standards. Their exact chemical and mechanical requirements should be checked against the relevant standard.
Are NFA 51 102 Aluminium Brass Pipes resistant to dezincification?
Yes. The arsenic-inhibited composition provides good resistance to dezincification, particularly in seawater and brackish-water environments.