Copper Nickel Fittings are very important and the most popular material due to the good properties such as high durability and non-corrosive nature, thus making them highly durable even under tough environmental conditions. Copper-Nickel alloy exists in different types, such as C70600 and C71500. The uses of copper-nickel fittings range from marine and offshore industries to desalination plants. It comes in different types, such as elbows, tees, reducers, and stub ends, which are fabricated using standards such as ASTM B366. The fittings have a long life span in tough situations since they are resistant to corrosion, biofouling, and wear. These types of pipe fittings make up cupro nickel fittings for marine offshore applications. Metinox Overseas is an established CuNi pipe fittings manufacturer in India. We manufacture high-quality pipe fittings made of 90/10 and 70/30 copper-nickel.
Request a Copper Nickel Pipe Fittings QuoteTable of Contents
- Specifications of Copper Nickel Pipe Fittings
- Chemical Composition of Copper Nickel Pipe Fittings
- Mechanical Properties of Copper Nickel Pipe Fittings
- Types of Copper Nickel Pipe Fittings
- Equivalent Material of Copper Nickel Pipe Fittings
- HS Code of Copper Nickel Pipe Fittings
- Comparison Table on Nickel 201 vs Nickel 200
- Dimension Chart of Copper Nickel Pipe Fittings
- Thickness Chart of Copper Nickel Pipe Fittings
- Applications of Copper Nickel Pipe Fittings
- Frequently Asked Questions
Specifications of Copper Nickel Pipe Fittings
| Element | Detail |
|---|---|
| Standard | ASTM B366 / ASME SB366 |
| UNS Designation | N02201 |
| Common Trade Name | Nickel 201 / Alloy 201 |
| DIN Equivalent | 2.4068 |
| Product Form | Wrought buttweld fittings (seamless and welded) |
| Heat Treatment | Annealed |
| Dimensional Standard | ASME B16.9, MSS SP-43 |
| Size Range | 1/2 NPS to 24 NPS |
| Max Carbon | 0.02% - key graphitization prevention |
Chemical Composition of Copper Nickel Pipe Fittings
| Element | Min % | Max % | Note |
|---|---|---|---|
| Nickel (Ni) | 99.0 | - | Commercially pure nickel |
| Carbon (C) | - | 0.02 | KEY: prevents graphitization above 315°C |
| Manganese (Mn) | - | 0.35 | - |
| Iron (Fe) | - | 0.40 | - |
| Silicon (Si) | - | 0.35 | - |
| Sulphur (S) | - | 0.010 | - |
| Copper (Cu) | - | 0.25 | - |
Mechanical Properties of Copper Nickel Pipe Fittings
| Property | Requirement (SI) | Requirement (Imperial) |
|---|---|---|
| Tensile Strength (min) | 380 MPa | 55 ksi |
| Yield Strength (min) | 105 MPa | 15 ksi |
| Elongation (min) | 40% | 40% |
| Hardness (max) | 120 HBW | - |
Types of Copper Nickel Pipe Fittings
70 30 Copper Nickel Alloy Short Radius Return Bends
70 30 Cu Ni Cross
70 30 cupro Nickel Reducing Elbow
70 30 Nickel Copper Alloy Nipple
70_30 Cupro Nickel Coupling
ASTM B466 UNS C71500 Long Radius Return Bends
C71500 Copper Nickel Stub Ends
CDA 715 Short Radius Pipe Elbows
Copper Nickel 70_30 Long Radius Pipe Elbows
Copper Nickel Alloy 70_30 Equal Tee
CuNi 70 30 Collar Pipe Fittings
Cu-Ni 70_30 Pipe Caps
Cuni Buttweld Fittings
Cunifer Eccentric Reducer
Cupro-Nickel CDA 715 Unequal Tee
DIN 2.0882 Concentric Reducer
Equivalent Material of Copper Nickel Pipe Fittings
| JIS H3300 | BS2871 {PART2} | AS1752 | DIN17664 | DIN 86019 WL2.1972 | EEMUA 144 | MIL-T-16420K | EN12449 |
|---|---|---|---|---|---|---|---|
| C7060T | CN102 | C70600 | CuNi10Fe 1Mn | CuNi10Fe 1.6Mn | 7060X | 706 | CW352H |
HS Code of Copper Nickel Pipe Fittings
| Product Grade / Material | Harmonized System (HS) Code |
|---|---|
| Copper Nickel 70/30 Pipe Fittings | 74122090 |
Comparison Table on Nickel 201 vs Nickel 200
| Property | Nickel 200 (N02200) | Nickel 201 (N02201) |
|---|---|---|
| Carbon max | 0.15% | 0.02% |
| Service temp limit | Up to 315°C (600°F) | Above 315°C - safe |
| Graphitization risk | Yes above 315°C | Eliminated |
| ASTM standard | B366 WPN200 | B366 WPN201 |
| Cost | Lower | Slightly higher |
| When to use | Low-temp caustic | High-temp caustic, elevated-temp chemical |
Dimension Chart of Copper Nickel Pipe Fittings
| Nominal Size (Inch) | Actual OD (mm) | Radius Type | Radius (E/A) (mm) | Wall Thickness (S) (mm) | Approx. Weight (kg/piece) |
|---|---|---|---|---|---|
| 1-1/4" | 38.1 | Long Radius | 38 | 1.5 / 2.5 | 0.04 |
| 2" | 50.8 | Long Radius | 50 | 1.5 / 2.5 | 0.09 |
| 2-1/2" | 76.1 | Long Radius | 76 | 2.0 / 2.5 | 0.22 |
| 3" | 88.9 | Long / Short | 88 / 75 | 2.0 / 2.5 | 0.32 |
| 4" | 108.0 | Long / Short | 108 / 100 | 2.5 / 3.0 | 0.58 / 0.42 |
| 6" | 159.0 | Long / Short | 159 / 150 | 2.5 / 3.0 | 1.31 / 1.08 |
| 8" | 219.1 | Long / Short | 219 / 200 | 2.5 / 4.5 | 3.77 / 2.51 |
| 10" | 267.4 | Long Radius | 267 | 3.0 / 4.5 | 6.44 |
| 12" | 323.9 | Long / Short | 323 / 305 | 3.0 / 4.5 | 12.43 / 8.65 |
| 14" | 355.6 | Long Radius | 355 | 3.5 / 5.0 | 16.42 |
| 16" | 406.4 | Long / Short | 406 / 400 | 4.0 / 6.0 | 19.11 / 16.44 |
| 18" | 457.2 | Long / Short | 457 / 455 | 4.5 / 6.5 | 28.14 / 20.43 |
Thickness Chart of Copper Nickel Pipe Fittings
| NPS (Nominal Pipe Size) | Equal Tee Weight (kg) | 90° Elbow Weight (kg) | 45° Elbow Weight (kg) |
|---|---|---|---|
| 1/4" (8) | 0.06 | 0.03 | 0.02 |
| 3/8" (10) | 0.03 | 0.03 | 0.02 |
| 1/2" (15) | 0.10 | 0.08 | 0.04 |
| 3/4" (20) | 0.17 | 0.08 | 0.04 |
| 1" (25) | 0.29 | 0.15 | 0.11 |
| 1-1/4" (32) | 0.59 | 0.26 | 0.17 |
| 1-1/2" (40) | 0.86 | 0.40 | 0.23 |
| 2" (50) | 1.28 | 0.70 | 0.43 |
| 2-1/2" (65) | 2.19 | 1.40 | 0.77 |
| 3" (80) | 3.31 | 2.20 | 1.08 |
| 3-1/2" (90) | 4.08 | 2.83 | 1.42 |
| 4" (100) | 5.27 | 4.47 | 2.09 |
| 6" (150) | 10.99 | 10.89 | 5.44 |
| 8" (200) | 20.91 | 21.54 | 10.77 |
| 10" (250) | 35.38 | 38.56 | 19.27 |
| 12" (300) | 62.14 | 59.42 | 29.71 |
Applications of Copper Nickel Pipe Fittings
- Marine & Shipbuilding
- Offshore Oil & Gas
- Desalination
- Power Generation
- Petrochemical
- Chemical Processing
- HVAC (Heating, Ventilation & Air Conditioning)
(HVAC Conditioning) - Fire Protection
- Pulp & Paper
- Water Treatment
Frequently Asked Questions
Copper nickel pipe fittings are piping components made from copper-nickel alloys, used to connect, control, and direct flow in piping systems with excellent resistance to corrosion.
Cupronickel is used in marine, offshore, desalination, and heat exchanger systems due to its durability and resistance to seawater corrosion.
90/10 copper nickel contains 90% copper and 10% nickel, offering good corrosion resistance, while 70/30 has 70% copper and 30% nickel, providing higher strength and better performance in more aggressive environments.
They are used in seawater systems, shipbuilding, offshore platforms, power plants, and chemical industries.
Yes, copper nickel has excellent resistance to corrosion, especially in seawater and marine environments.
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