ASTM B111 C72200 Tube – UNS C72200 (Copper Nickel Alloy Tube)
ASTM B111 C72200 Tube, designated as UNS C72200, is a high-strength copper-nickel alloy tube developed for condenser, heat exchanger, and marine service applications. Manufactured seamlessly as per ASTM B111, UNS C72200 tubes provide enhanced mechanical strength along with good resistance to corrosion in water and marine environments. The alloy is known for its durability, dimensional stability, and consistent thermal performance, making ASTM B111 C72200 tubes suitable for demanding industrial heat transfer systems.
Key Features
- Good resistance to corrosion in marine and industrial water systems
- Higher strength compared to standard copper alloys
- Reliable thermal conductivity for heat transfer applications
- Seamless construction for uniform quality and performance
- Good resistance to biofouling and erosion
- Long service life with reduced maintenance
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| UNS | C72200 |
| EN | Copper Nickel Alloy |
| DIN | CuNi Alloy |
| ISO | Copper Nickel Alloy |
Sizes
- Outside Diameter: 6 mm to 114.3 mm
- Wall Thickness: 0.8 mm to 6 mm
- Length: Up to 6 meters, cut lengths available
- Form: Straight lengths and U-bend tubes
C72200 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Copper (Cu) | Balance |
| Nickel (Ni) | 16.0 – 20.0 |
| Iron (Fe) | Max 1.0 |
| Manganese (Mn) | Max 1.0 |
| Zinc (Zn) | Max 0.5 |
| Lead (Pb) | Max 0.02 |
C72200 Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 380 MPa |
| Yield Strength | ≥ 140 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 95 HRB |
UNS C72200 Physical Properties
| Property | Value |
|---|---|
| Density | 8.92 g/cm³ |
| Melting Point | ~1140°C |
| Thermal Conductivity | ~35 W/m·K |
| Electrical Conductivity | ~4% IACS |
Type of C72200 Pipe & Tubes
- C72200 Seamless Tubes
- C72200 U-Bend Tubes
- Condenser Tubes
- Heat Exchanger Tubes
Applications
- Condensers
- Heat exchangers
- Marine Engineering
- Power Plants
- Desalination Units
- Offshore structures
- Industrial cooling systems
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