Copper nickel tees are butt weld pipe fittings used to connect three pipe sections in marine, offshore, shipbuilding and seawater piping systems. We supply copper nickel equal tees and reducing tees in Cu-Ni 90/10 and Cu-Ni 70/30 materials, manufactured according to DIN 86088, EEMUA 234 and ASME B16.9 standards.
Available types include equal tee, straight tee, unequal tee and reducing tee, with customized sizes, wall thicknesses and end preparations available upon request.
Copper Nickel Tees are butt weld pipe fittings used to create branch connections within copper nickel piping systems. They are widely used in marine engineering, naval vessels, offshore platforms, desalination plants and seawater cooling systems where corrosion resistance and long service life are critical.
HC ALUMINUM manufactures a complete range of Copper Nickel Equal Tees and Copper Nickel Reducing Tees complying with international piping standards and project specifications.
| Item | Description |
| Product Name | Copper Nickel Tees |
| Types | Equal Tee, Straight Tee, Reducing Tee, Unequal Tee |
| Connection | Butt Weld |
| Standards | DIN 86088, EEMUA 234, ASME B16.9 |
| Material Grades | CuNi 90/10 (C70600), CuNi 70/30 (C71500) |
| Size Range | DN15 - DN600, According to project requirement |
| Wall Thickness | SCH10S, SCH40S, SCH80S, SCH160, As per standard or customer drawing |
| Surface | Pickled, cleaned or as required |
| Applications | Marine, Offshore, Shipbuilding, Desalination, Power Plants |
When requesting a quotation, please include tee type, size, material grade, wall thickness, standard, quantity and any required inspection document.
Copper nickel tees are available in equal and reducing configurations. The correct type depends on pipe size arrangement, flow requirement and project standard.
Copper nickel equal tee, also known as straight tee, has the same diameter on all three outlets. It is commonly used when the branch line requires the same flow capacity as the main pipeline. Equal tees are widely used in seawater cooling systems, fire water lines, ballast systems and shipboard piping networks.
Copper nickel reducing tee, also called unequal tee, is designed with a smaller branch outlet than the main run pipe. It is used when the piping system requires a branch connection with reduced flow or a different pipe size. Reducing tees help simplify pipeline layout and reduce the need for additional reducers.
Copper nickel tees are supplied to internationally recognized standards for marine, offshore, shipbuilding and industrial piping systems. Depending on the project specification, equal tees and reducing tees can be manufactured to DIN 86088, EEMUA 234 or ASME B16.9 requirements. Each standard defines key dimensional, inspection and application requirements to help ensure proper fit-up, reliable performance and traceable quality documentation.
| Standard | Common Application | Available Tee Types |
| DIN 86088 | Shipbuilding, marine piping and seawater systems | Equal Tee, Reducing Tee |
| EEMUA 234 | Offshore platforms, desalination, seawater cooling and Cu-Ni piping networks | Equal Tee, Reducing Tee |
| ASME B16.9 | Factory-made wrought butt weld fittings for industrial piping projects | Equal Tee, Reducing Tee |
DIN 86088 copper nickel tees are widely used in shipbuilding and marine pipeline installations. They are commonly selected for seawater service, bilge systems, ballast lines and other onboard piping where dimensional consistency and marine-grade corrosion resistance are required.
EEMUA 234 tees are specified for copper nickel piping systems used in offshore and coastal environments. This standard is often chosen for seawater intake, cooling water, firewater and process utility lines where long-term reliability, material traceability and inspection records are important.
ASME B16.9 copper nickel tees are factory-made butt welding fittings for industrial piping systems. They are suitable for projects requiring ASME dimensional tolerances and can be supplied as equal or reducing tees according to line size, wall thickness and engineering drawings.
The correct standard should be selected based on the piping design code, service environment, pressure requirements, connection dimensions and project documentation needs. For marine and shipbuilding projects, DIN 86088 is frequently requested. For offshore and seawater copper nickel piping systems, EEMUA 234 is a common choice. For industrial butt weld fittings, ASME B16.9 is typically specified.
Copper nickel tees can be supplied with material certificates, dimensional inspection reports and other quality documents when required by the purchase order or project specification.
Copper nickel tees are commonly used in seawater piping, shipbuilding, offshore platforms and other marine systems where corrosion resistance and long service life are essential. The two most widely specified alloy grades are Cu-Ni 90/10 and Cu-Ni 70/30, each offering reliable performance in demanding saltwater environments.
| Material Grade | Common Designation | Best Suited For |
| Cu-Ni 90/10 | C70600 / CW352H | General marine piping, shipbuilding, seawater cooling systems, fire water lines and ballast systems |
| Cu-Ni 70/30 | C71500 / CW354H | Offshore service, higher seawater flow velocity, heat exchangers and more demanding marine applications |
Cu-Ni 90/10 is often selected for standard seawater pipeline projects because it provides a good balance of corrosion resistance, weldability and cost efficiency. Cu-Ni 70/30 contains a higher nickel content, making it a preferred option for harsher operating conditions, especially where higher flow rates, turbulence or offshore exposure are involved.
Both grades offer excellent resistance to biofouling, erosion corrosion and seawater attack when the piping system is properly designed and installed. Material selection should always consider the working pressure, pipe size, seawater velocity, applicable standard and project specification.
If your project requires a specific copper nickel tee material, size or manufacturing standard, please send us your drawing, bill of materials or purchase specification. Our technical and sales team can help review the requirement and recommend the suitable Cu-Ni tee before quotation.
| KME CuNi90/10 | DIN 17664 2.0882 | BS 2871 CN102 | ASTM B466 C70600 | JIS H3300 C7060T | DIN 86019 2.1972 | EEMUA 234 UNS 7060X | GB/T 5231 BFe10-1.6-1 | |
| Ni% | 10.0-11.0 | 9.0-11.0 | 10.0-11.0 | 9.0-11.0 | 9.0-11.0 | 9.0-11.0 | 10.0-11.0 | 9.0-11.0 |
| Fe% | 1.5-1.8 | 1.0-2.0 | 1.0-2.0 | 1.0-1.8 | 1.0-1.8 | 1.5-1.8 | 1.5-2.0 | 1.5-1.8 |
| Mn% | 0.6-1.0 | 0.5-1.0 | 0.5-1.0 | max.1.0 | 0.2-1.0 | 0.5-1.0 | 0.5-1.0 | 0.5-1.0 |
| C% | max.0.05 | max.0.05 | max.0.05 | max.0.05 | max.0.05 | max.0.05 | max.0.05 | |
| Pb% | max.0.01 | max.0.03 | max.0.01 | max.0.02 | max.0.05 | max.0.01 | max.0.01 | max.0.03 |
| S% | max.0.005 | max.0.02 | max.0.05 | max.0.02 | max.0.005 | max.0.02 | max.0.01 | |
| P% | max.0.02 | max.0.02 | max.0.02 | max.0.02 | max.0.02 | max.0.02 | ||
| Zn% | max.0.05 | max.0.50 | max.0.50 | max.0.50 | max.0.05 | max.0.20 | max.0.20 | |
| Other | max.0.20 | max.0.30 | max.0.20 | max.0.30 | max.0.40 | |||
| Cu% | rem. | rem. | rem. | rem. | +Ni+Fe+Mn min99.5 | rem. | rem. | rem. |
| KME CuNi70/30 | DIN 176642.0882 | BS 2871 CN107 | ASTM B466C71500 | JIS H3300C7150T | |
| Ni% | 30.0-32.0 | 30.0-32.0 | 30.0-32.0 | 29.0-33.0 | 29.0-33.0 |
| Fe% | 0.47-0.7 | 0.4-1.0 | 0.4-1.0 | 0.4-1.0 | 0.4-1.0 |
| Mn% | 0.5-1.0 | 0.5-1.5 | 0.5-1.5 | max.1.0 | 0.2-1.0 |
| C% | max.0.04 | max.0.05 | max.0.06 | max.0.05 | |
| Pb% | max.0.01 | max.0.03 | max.0.01 | max.0.02 | max.0.05 |
| S% | max.0.01 | max.0.02 | max.0.08 | max.0.02 | |
| P% | max.0.02 | max.0.02 | max.0.02 | ||
| Zn% | max.0.20 | max.0.50 | max.0.50 | max.0.50 | |
| Other | max.0.30 | max.0.30 | |||
| Cu% | rem. | rem. | rem. | rem. | +Ni+Fe+Mn min99.5 |
Copper nickel alloys offer strong protection against saltwater corrosion, pitting, and crevice corrosion, making them suitable for continuous seawater service.
The material helps limit the attachment of marine organisms, reducing flow restrictions and supporting cleaner pipe operation over time.
Cu-Ni tees are built for durability in harsh operating conditions, helping extend the service life of seawater pipelines and related equipment.
Copper nickel tees provide excellent weldability and are suitable for butt-weld piping systems, allowing secure and efficient installation.
With high corrosion resistance and reduced fouling, copper nickel pipe fittings help minimize maintenance, downtime, and replacement costs.
Copper nickel tees are commonly selected for firewater lines, ballast systems, heat exchanger connections, cooling water pipelines, and offshore seawater systems.
Every copper nickel tee is inspected against the purchase order, project drawings and applicable piping standards before shipment. For marine, offshore, shipbuilding and seawater piping applications, we focus on material traceability, dimensional accuracy, surface condition and proper export packing to help ensure the fittings arrive ready for installation.
Mill test certificates are reviewed to verify the copper nickel grade, heat number, chemical composition and mechanical properties. Certificates such as EN 10204 3.1 or 3.2 can be supplied when required by the project.
Key dimensions, including outside diameter, wall thickness, center-to-end length, branch size and end preparation, are checked according to the specified standard, such as ASME B16.9, MSS SP-43 or project-specific drawings.
Each fitting is visually inspected for surface defects, forming quality, cleanliness, edge condition and overall workmanship. This helps confirm that the copper nickel tee is suitable for marine piping and seawater service.
Product marking is checked against the order requirements, including size, material grade, heat number, standard and manufacturer identification. Traceability records can be maintained from raw material to finished fitting.
Before dispatch, the packing condition is inspected to reduce the risk of moisture, impact or handling damage during international transportation. Wooden cases, pallets and protective wrapping are available based on shipment requirements.
Third-party inspection can be arranged for shipyard, offshore platform, desalination, power plant and EPC project orders. Inspection by agencies such as SGS, BV, LR, ABS, DNV or other nominated inspectors is available upon request.
Each copper nickel tee is inspected and protected before shipment to help prevent scratches, dents and moisture-related damage in transit. We offer export wooden cases, fumigated pallets and tailor-made packing solutions based on tee size, order quantity, shipping method and project destination.
Copper nickel equal tees and reducing tees are packed with suitable internal separation and surface protection to reduce metal-to-metal contact during handling, sea freight or air delivery. Clear product marking, batch identification and packing lists can be provided to support easier site checking and warehouse management.
Whether the order is for ship repair, offshore maintenance or new project construction, our team can help confirm stock, production time and shipping options. Please share the required size, material grade, standard, pressure rating and quantity so we can provide a realistic delivery plan and quotation.
| specification | DN | OD | S | a | b | Weight |
| inch | mm | mm | mm | mm | mm | kg |
| 1/2 | 15 | 20 | 1 | 25 | 25 | 0.05 |
| 3/4 | 20 | 25 | 1.5 | 29 | 29 | 0.07 |
| 1 | 25 | 30 | 1.5 | 38 | 38 | 0.19 |
| 11/4 | 32 | 38 | 1.5 | 48 | 48 | 0.32 |
| 11/2 | 40 | 44.5 | 1.5 | 57 | 57 | 0.46 |
| 2 | 50 | 57 | 1.5 | 64 | 64 | 0.66 |
| 21/2 | 65 | 76 | 2 | 76 | 76 | 1.20 |
| 3 | 80 | 89 | 2 | 86 | 86 | 1.70 |
| 4 | 100 | 108 | 2.5 | 105 | 105 | 3.00 |
| 5 | 125 | 133 | 2.5 | 124 | 124 | 4.70 |
| 6 | 150 | 159 | 2.5 | 143 | 143 | 6.20 |
| 8 | 200 | 219 | 3 | 178 | 178 | 11.60 |
| 10 | 250 | 267 | 3 | 216 | 216 | 14.92 |
| 12 | 300 | 324 | 4 | 254 | 254 | 21.30 |
| 14 | 350 | 368 | 4 | 279 | 279 | 25.90 |
| 16 | 400 | 419 | 4 | 305 | 305 | 33.40 |
| 18 | 450 | 457 | 4.5 | 343 | 343 | 48.60 |
| 20 | 500 | 508 | 5 | 381 | 381 | 63.20 |
| 24 | 600 | 610 | 5 | 432 | 432 | 93.80 |
| specification | OD | s 16bar | s 20bar | a | b | Weight 16bar | Weight 20bar |
| inch | mm | mm | mm | mm | mm | kg | kg |
| 1 | 30 | 2.5 | 2.5 | 38 | 38 | 0.30 | 0.30 |
| 11/4 | 38 | 2.5 | 2.5 | 48 | 48 | 0.50 | 0.50 |
| 11/2 | 44.5 | 2.5 | 2.5 | 57 | 57 | 0.75 | 0.75 |
| 2 | 57 | 2.5 | 2.5 | 64 | 64 | 1.00 | 1.00 |
| 21/2 | 76.1 | 2.5 | 2.5 | 76 | 76 | 1.60 | 1.60 |
| 3 | 88.9 | 2.5 | 2.5 | 86 | 86 | 2.00 | 2.00 |
| 4 | 108 | 3 | 3 | 105 | 105 | 3.25 | 3.25 |
| 6 | 159 | 3 | 3.5 | 143 | 143 | 6.00 | 7.20 |
| 8 | 219.1 | 4 | 4.5 | 178 | 178 | 11.25 | 12.70 |
| 10 | 267 | 4.5 | 5.5 | 216 | 216 | 22.50 | 27.50 |
| 12 | 323.9 | 5.5 | 7 | 254 | 254 | 39.50 | 50.30 |
| 14 | 368 | 6.5 | 8 | 279 | 279 | 62.00 | 76.00 |
| 16 | 419 | 7 | 9 | 305 | 305 | 88.00 | 119.00 |
| 18 | 457.2 | 8 | 9.5 | 343 | 343 | 128.00 | 152.00 |
| 20 | 508 | 8.5 | 11 | 381 | 381 | 165.00 | 214.00 |
| 24 | 610 | 10.5 | 13 | 432 | 432 | 266.00 | 330.00 |
| 28 | 711 | 12 | 15 | 521 | 521 | 388.00 | 458.00 |
| 32 | 813 | 13.5 | 17 | 597 | 597 | 508.00 | 606.00 |
| 36 | 914 | 15.5 | 19 | 673 | 673 | 650.00 | 794.00 |
| DN | OD | s 10s | a | b | Weight | |
| inch | mm | mm | mm | mm | mm | kg |
| 1/2 | 15 | 21.3 | 2.11 | 25 | 25 | 0.11 |
| 3/4 | 20 | 26.7 | 2.11 | 29 | 29 | 0.21 |
| 1 | 25 | 33.4 | 2.77 | 38 | 38 | 0.33 |
| 11/4 | 32 | 42.2 | 2.77 | 48 | 48 | 0.55 |
| 11/2 | 40 | 48.3 | 2.77 | 57 | 57 | 0.83 |
| 2 | 50 | 60.3 | 2.77 | 64 | 64 | 1.11 |
| 21/2 | 65 | 73 | 3.05 | 76 | 76 | 1.95 |
| 3 | 80 | 88.9 | 3.05 | 86 | 86 | 2.44 |
| 4 | 100 | 114.3 | 3.05 | 105 | 105 | 3.3 |
| 6 | 150 | 168.3 | 3.4 | 143 | 143 | 7.2 |
| 8 | 200 | 219.1 | 3.76 | 178 | 178 | 10.6 |
| 10 | 250 | 273 | 4.19 | 216 | 216 | 20.95 |
| 12 | 300 | 323.8 | 4.57 | 254 | 254 | 32.8 |
| 14 | 350 | 355.6 | 4.78 | 279 | 279 | 45.6 |
| 16 | 400 | 406.4 | 4.78 | 305 | 305 | 60.1 |
| 18 | 450 | 457 | 4.78 | 343 | 343 | 76.5 |
| 20 | 500 | 508 | 5.54 | 381 | 381 | 107.6 |
| 24 | 600 | 610 | 6.35 | 432 | 432 | 160.9 |
| specification | OD1xOD2 | S1xS2 | a | b | Weight |
| inch | mm | mm | mm | mm | kg |
| 3/4*1/2 | 25*20 | 1.5*1 | 29 | 26 | 0.08 |
| 1*1/2 | 30*20 | 1.5*1 | 38 | 29 | 0.09 |
| 1*3/4 | 30*25 | 1.5*1.5 | 38 | 35 | 0.09 |
| 11/4*3/4 | 38*25 | 1.5*1.5 | 48 | 35 | 0.10 |
| 11/4*1 | 38*30 | 1.5*1.5 | 48 | 42 | 0.10 |
| 11/2*1 | 44.5*30 | 1.5*1.5 | 57 | 45 | 0.21 |
| 11/2*11/4 | 44.5*38 | 1.5*1.5 | 57 | 51 | 0.21 |
| 2*1 | 57*30 | 1.5*1.5 | 64 | 51 | 0.32 |
| 2*11/4 | 57*38 | 1.5*1.5 | 64 | 57 | 0.33 |
| 2*11/2 | 57*44.5 | 1.5*1.5 | 64 | 63 | 0.34 |
| 21/2*1 | 76*30 | 2*1.5 | 76 | 56 | 0.65 |
| 21/2*11/4 | 76*38 | 2*1.5 | 76 | 62 | 0.66 |
| 21/2*11/2 | 76*44.5 | 2*1.5 | 76 | 71 | 0.67 |
| 21/2*2 | 76*57 | 2*1.5 | 76 | 73 | 0.68 |
| 3*11/4 | 89*38 | 2*1.5 | 86 | 73 | 0.87 |
| 3*11/2 | 89*44.5 | 2*1.5 | 86 | 76 | 0.88 |
| 3*2 | 89*57 | 2*1.5 | 86 | 80 | 0.89 |
| 3*21/2 | 89*76 | 2*2 | 86 | 83 | 0.90 |
| 4*11/2 | 108*44.5 | 2.5*1.5 | 105 | 89 | 1.60 |
| 4*2 | 108*57 | 2.5*1.5 | 105 | 90 | 1.61 |
| 4*21/2 | 108*76 | 2.5*2 | 105 | 92 | 1.65 |
| 4*3 | 108*89 | 2.5*2 | 105 | 96 | 1.67 |
| 5*2 | 133*57 | 2.5*1.5 | 124 | 98 | 3.00 |
| 5*21/2 | 133*76 | 2.5*2 | 124 | 105 | 3.10 |
| 5*3 | 133*89 | 2.5*2 | 124 | 108 | 3.25 |
| 5*4 | 133*108 | 2.5*2.5 | 124 | 117 | 3.30 |
| 6*21/2 | 159*76 | 2.5*2 | 143 | 118 | 4.40 |
| 6*3 | 159*89 | 2.5*2 | 143 | 121 | 4.50 |
| 6*4 | 159*108 | 2.5*2.5 | 143 | 130 | 4.60 |
| 6*5 | 159*133 | 2.5*2.5 | 143 | 136 | 4.70 |
| 8*4 | 219*108 | 3*2.5 | 178 | 156 | 12.60 |
| 8*5 | 219*133 | 3*2.5 | 178 | 162 | 12.70 |
| 8*6 | 219*159 | 3*2.5 | 178 | 168 | 12.80 |
| 10*5 | 267*133 | 3*2.5 | 216 | 189 | 9.80 |
| 10*6 | 267*159 | 3*2.5 | 216 | 194 | 10.40 |
| 10*7 | 267*194 | 3*2.5 | 216 | 198 | 11.80 |
| 10*8 | 267*219 | 3*3 | 216 | 203 | 13.85 |
| 12*6 | 324*159 | 4*2.5 | 254 | 219 | 18.27 |
| 12*7 | 324*194 | 4*2.5 | 254 | 222 | 19.00 |
| 12*8 | 324*219 | 4*3 | 254 | 229 | 19.92 |
| 12*10 | 324*267 | 4*3 | 254 | 241 | 20.31 |
| 14*7 | 368*194 | 4*2.5 | 279 | 242 | 23.5 |
| 14*8 | 368*219 | 4*3 | 279 | 248 | 24.1 |
| 14*10 | 368*267 | 4*3 | 279 | 257 | 24.8 |
| 14*12 | 368*324 | 4*4 | 279 | 270 | 25.4 |
| 16*8 | 419*219 | 4*3 | 305 | 276 | 30.1 |
| 16*10 | 419*267 | 4*3 | 305 | 283 | 30.5 |
| 16*12 | 419*324 | 4*4 | 305 | 295 | 31.8 |
| 16*14 | 419*368 | 4*4 | 305 | 305 | 32.5 |
| 18*10 | 457*267 | 4.5*3 | 343 | 310 | 41.7 |
| 18*12 | 457*324 | 4.5*4 | 343 | 321 | 43.2 |
| 18*14 | 457*368 | 4.5*4 | 343 | 330 | 43.7 |
| 18*16 | 457*419 | 4.5*4 | 343 | 330 | 46.2 |
| 20*12 | 508*324 | 5*4 | 381 | 347 | 57.7 |
| 20*14 | 508*368 | 5*4 | 381 | 356 | 58.4 |
| 20*16 | 508*419 | 5*4 | 381 | 356 | 59.2 |
| 20*18 | 508*457 | 5*4.5 | 381 | 368 | 60.7 |
| 24*14 | 610*368 | 5*4 | 432 | 393 | 84.5 |
| 24*16 | 610*419 | 5*4 | 432 | 406 | 85.5 |
| 24*18 | 610*457 | 5*4.5 | 432 | 419 | 86.9 |
| 24*20 | 610*508 | 5*5 | 432 | 432 | 89.4 |
| specification | OD1xOD2 | S1xS216bar | S1xS2206bar | a | b | Weight 16bar | Weight 20bar |
| inch | mm | mm | mm | mm | mm | mm | mm |
| 1*3/4 | 30*25 | 2.5*2 | 2.5*2 | 38 | 38 | 0.18 | 0.18 |
| 11/4*1 | 38*30 | 2.5*2.5 | 2.5*2.5 | 48 | 48 | 0.29 | 0.29 |
| 11/4*3/4 | 38*25 | 2.5*2 | 2.5*2 | 48 | 48 | 0.28 | 0.28 |
| 11/2*11/4 | 44.5*38 | 2.5*2.5 | 2.5*2.5 | 57 | 57 | 0.42 | 0.42 |
| 11/2*1 | 44.5*30 | 2.5*2.5 | 2.5*2.5 | 57 | 57 | 0.40 | 0.40 |
| 11/2*3/4 | 44.5*25 | 2.5*2 | 2.5*2 | 57 | 57 | 0.38 | 0.38 |
| 2*11/2 | 57*44.5 | 2.5*2.5 | 2.5*2.5 | 64 | 60 | 0.58 | 0.58 |
| 2*11/4 | 57*38 | 2.5*2.5 | 2.5*2.5 | 64 | 57 | 0.56 | 0.56 |
| 2*1 | 57*30 | 2.5*2.5 | 2.5*2.5 | 64 | 51 | 0.53 | 0.53 |
| 21/2*2 | 76.1*57 | 2.5*2.5 | 2.5*2.5 | 76 | 70 | 0.90 | 0.90 |
| 21/2*11/2 | 76.1*44.5 | 2.5*2.5 | 2.5*2.5 | 76 | 67 | 0.87 | 0.87 |
| 21/2*11/4 | 76.1*38 | 2.5*2.5 | 2.5*2.5 | 76 | 64 | 0.85 | 0.85 |
| 3*21/2 | 88.9*76.1 | 2.5*2.5 | 2.5*2.5 | 86 | 83 | 1.24 | 1.24 |
| 3*2 | 88.9*57 | 2.5*2.5 | 2.5*2.5 | 86 | 76 | 1.16 | 1.16 |
| 3*11/2 | 88.9*44.5 | 2.5*2.5 | 2.5*2.5 | 86 | 73 | 1.12 | 1.12 |
| 4*3 | 108*88.9 | 3*2.5 | 3*2.5 | 105 | 98 | 2.12 | 2.12 |
| 4*21/2 | 108*76.1 | 3*2.5 | 3*2.5 | 105 | 95 | 2.06 | 2.06 |
| 4*2 | 108*57 | 3*2.5 | 3*2.5 | 105 | 89 | 1.98 | 1.98 |
| 6*4 | 159*108 | 3*3 | 3.5*3 | 143 | 130 | 4.19 | 4.80 |
| 6*3 | 159*88.9 | 3*2.5 | 3.5*2.5 | 143 | 124 | 4.01 | 4.62 |
| 6*21/2 | 159*76.1 | 3*2.5 | 3.5*2.5 | 143 | 121 | 3.96 | 4.57 |
| 8*6 | 219.1*159 | 4*3 | 4.5*3.5 | 178 | 168 | 9.33 | 10.50 |
| 8*4 | 219.1*108 | 4*3 | 4.5*3 | 178 | 156 | 8.97 | 10.02 |
| 8*3 | 219.1*88.9 | 4*2.5 | 4.5*2.5 | 178 | 152 | 8.82 | 9.87 |
| 10*8 | 267*219.1 | 4.5*4 | 5.5*4.5 | 216 | 203 | 15.94 | 19.25 |
| 10*6 | 267*159 | 4.5*3 | 5.5*3.5 | 216 | 194 | 15.06 | 18.29 |
| 10*4 | 267*108 | 4.5*3 | 5.5*3 | 216 | 184 | 14.71 | 17.82 |
| 12*10 | 323.9*267 | 5.5*4.5 | 7*5.5 | 254 | 241 | 27.48 | 34.69 |
| 12*8 | 323.9*219.1 | 5.5*4 | 7*4.5 | 254 | 229 | 26.49 | 33.32 |
| 12*6 | 323.9*159 | 5.5*3 | 7*3.5 | 254 | 219 | 25.62 | 32.38 |
| 14*12 | 368*323.9 | 6.5*5.5 | 8*7 | 279 | 270 | 40.87 | 50.27 |
| 14*10 | 368*267 | 6.5*4.5 | 8*5.5 | 279 | 257 | 39.07 | 47.87 |
| 14*8 | 368*219.1 | 6.5*4 | 8*4.5 | 279 | 248 | 38.2 | 46.66 |
| 16*14 | 419*368 | 7*6.5 | 9*8 | 305 | 305 | 55.46 | 70.63 |
| 16*12 | 419*323.9 | 7*5.5 | 9*7 | 305 | 295 | 53.38 | 68.24 |
| 16*10 | 419*267 | 7*4.5 | 9*5.5 | 305 | 283 | 51.62 | 65.89 |
| 18*16 | 457.2*419 | 8*7 | 9.5*9 | 343 | 330 | 77.1 | 92.04 |
| 18*14 | 457.2*368 | 8*6.5 | 9.5*8 | 343 | 330 | 75.59 | 89.74 |
| 18*12 | 457.2*323.9 | 8*5.5 | 9.5*7 | 343 | 321 | 73.45 | 87.31 |
| 20*18 | 508*457.2 | 8.5*8 | 11*9.5 | 381 | 368 | 101.91 | 130.03 |
| 20*16 | 508*419 | 8.5*7 | 11*9 | 381 | 356 | 98.68 | 127.00 |
| 20*14 | 508*368 | 8.5*6.5 | 11*8 | 381 | 356 | 97.16 | 124.69 |
| 24*20 | 610*508 | 10.5*8.5 | 13*11 | 432 | 432 | 167.14 | 206.90 |
| 24*18 | 610*457.2 | 10.5*8 | 13*9.5 | 432 | 419 | 163.52 | 201.04 |
| 24*16 | 610*419 | 10.5*7 | 13*9 | 432 | 406 | 160.21 | 197.91 |
| 28*24 | 711*610 | 12*10.5 | 15*13 | 521 | 508 | 271.22 | 337.26 |
| 28*20 | 711*508 | 12*8.5 | 15*11 | 521 | 483 | 259.52 | 323.65 |
| 28*18 | 711*457.2 | 12*8 | 15*9.5 | 521 | 470 | 255.88 | 317.78 |
| 32*28 | 813*711 | 13.5*12 | 17*15 | 597 | 572 | 399.14 | 500.07 |
| 32*24 | 813*610 | 13.5*10.5 | 17*13 | 597 | 559 | 387.17 | 484.85 |
| 32*20 | 813*508 | 13.5*8.5 | 17*11 | 597 | 533 | 375.34 | 471.09 |
| 36*32 | 914*813 | 15.5*13.5 | 19*17 | 673 | 648 | 581.77 | 712.24 |
| 36*28 | 914*711 | 15.5*12 | 19*15 | 673 | 622 | 562.82 | 688.14 |
| 36*24 | 914*610 | 15.5*10.5 | 19*13 | 673 | 610 | 551.05 | 673.17 |
| specification | OD1xOD2 | S110S | S210S | a | b | Weight |
| inch | mm | mm | mm | mm | mm | kg |
| 1*3/4 | 33.4*26.7 | 2.77 | 2.11 | 38 | 38 | 0.18 |
| 1*1/2 | 33.4*21.3 | 2.77 | 2.11 | 38 | 38 | 0.17 |
| 11/4*1 | 42.2*33.4 | 2.77 | 2.77 | 48 | 48 | 0.32 |
| 11/4*3/4 | 42.2*26.7 | 2.77 | 2.11 | 48 | 48 | 0.31 |
| 11/4*1/2 | 42.2*21.3 | 2.77 | 2.11 | 48 | 48 | 0.29 |
| 11/2*11/4 | 48.3*42.2 | 2.77 | 2.77 | 57 | 57 | 0.47 |
| 11/2*1 | 48.3*33.4 | 2.77 | 2.77 | 57 | 57 | 0.44 |
| 11/2*3/4 | 48.3*26.7 | 2.77 | 2.11 | 57 | 57 | 0.42 |
| 11/2*1/2 | 48.3*21.3 | 2.77 | 2.11 | 57 | 57 | 0.40 |
| 2*11/2 | 60.3*48.3 | 2.77 | 2.77 | 64 | 60 | 0.64 |
| 2*11/4 | 60.3*42.2 | 2.77 | 2.77 | 64 | 57 | 0.62 |
| 2*1 | 60.3*33.4 | 2.77 | 2.77 | 64 | 51 | 0.59 |
| 2*3/4 | 60.3*26.7 | 2.77 | 2.11 | 64 | 44 | 0.56 |
| 21/2*2 | 73*60.3 | 3.05 | 2.77 | 76 | 70 | 1.10 |
| 21/2*11/2 | 73*48.3 | 3.05 | 2.77 | 76 | 67 | 1.06 |
| 21/2*11/4 | 73*42.2 | 3.05 | 2.77 | 76 | 64 | 1.00 |
| 21/2*1 | 73*33.4 | 3.05 | 2.77 | 76 | 57 | 0.96 |
| 3*21/2 | 88.9*73 | 3.05 | 3.05 | 86 | 83 | 1.50 |
| 3*2 | 88.9*60.3 | 3.05 | 2.77 | 86 | 76 | 1.40 |
| 3*11/2 | 88.9*48.3 | 3.05 | 2.77 | 86 | 73 | 1.36 |
| 3*11/4 | 88.9*42.2 | 3.05 | 2.77 | 86 | 70 | 1.28 |
| 4*3 | 114.3*88.9 | 3.05 | 3.05 | 105 | 98 | 2.20 |
| 4*21/2 | 114.3*73 | 3.05 | 3.05 | 105 | 95 | 2.10 |
| 4*2 | 114.3*60.3 | 3.05 | 2.77 | 105 | 89 | 2.00 |
| 4*11/2 | 114.3*48.3 | 3.05 | 2.77 | 105 | 86 | 1.88 |
| 6*4 | 168.3*114.3 | 3.4 | 3.05 | 143 | 130 | 4.8 |
| 6*3 | 168.3*88.9 | 3.4 | 3.05 | 143 | 124 | 4.62 |
| 8*6 | 219.1*168.3 | 3.76 | 3.4 | 178 | 168 | 9.00 |
| 8*4 | 219.1*114.3 | 3.76 | 3.05 | 178 | 156 | 8.80 |
| 10*8 | 273*219.1 | 4.19 | 3.76 | 216 | 203 | 17.7 |
| 10*6 | 273*168.3 | 4.19 | 3.4 | 216 | 194 | 16.8 |
| 10*4 | 273*114.3 | 4.19 | 3.05 | 216 | 184 | 16.3 |
| 12*10 | 323.8*273 | 4.57 | 4.19 | 254 | 241 | 22.8 |
| 12*8 | 323.8*219.1 | 4.57 | 3.76 | 254 | 229 | 22.0 |
| 12*6 | 323.8*168.3 | 4.57 | 3.4 | 254 | 219 | 21.3 |
| 14*12 | 355.6*323.8 | 4.78 | 4.57 | 279 | 270 | 30.0 |
| 14*10 | 355.6*273 | 4.78 | 4.19 | 279 | 257 | 22.1 |
| 14*8 | 355.6*219.1 | 4.78 | 3.76 | 279 | 248 | 28.1 |
| 14*6 | 355.6*168.3 | 4.78 | 3.4 | 279 | 238 | 27.5 |
| 16*14 | 406.4*355.6 | 4.78 | 4.78 | 305 | 305 | 37.9 |
| 16*12 | 406.4*323.8 | 4.78 | 4.57 | 305 | 295 | 36.5 |
| 16*10 | 406.4*273 | 4.78 | 4.19 | 305 | 283 | 35.3 |
| 16*8 | 406.4*219 | 4.78 | 3.76 | 305 | 273 | 34.2 |
| 16*6 | 406.4*168.3 | 4.78 | 3.4 | 305 | 264 | 33.5 |
| 18*16 | 457*406.4 | 4.78 | 4.78 | 343 | 330 | 46.1 |
| 18*14 | 457*355.6 | 4.78 | 4.78 | 343 | 330 | 45.2 |
| 18*12 | 457*323.8 | 4.78 | 4.57 | 343 | 321 | 43.9 |
| 18*10 | 457*273 | 4.78 | 4.19 | 343 | 308 | 41.7 |
| 18*8 | 457*219.1 | 4.78 | 3.76 | 343 | 298 | 39.6 |
| 20*18 | 508*457 | 5.54 | 4.78 | 381 | 368 | 66.4 |
| 20*16 | 508*406.4 | 5.54 | 4.78 | 381 | 356 | 64.4 |
| 20*14 | 508*355.6 | 5.54 | 4.78 | 381 | 356 | 63.4 |
| 20*12 | 508*323.8 | 5.54 | 4.57 | 381 | 346 | 61.5 |
| 20*10 | 508*273 | 5.54 | 4.19 | 381 | 333 | 59.7 |
| 20*8 | 508*219.1 | 5.54 | 3.76 | 381 | 324 | 57.7 |
| 24*20 | 610*508 | 6.35 | 5.54 | 432 | 432 | 101.1 |
| 24*18 | 610*457 | 6.35 | 4.78 | 432 | 419 | 98.9 |
| 24*16 | 610*406.4 | 6.35 | 4.78 | 432 | 406 | 96.9 |
| 24*14 | 610*355.6 | 6.35 | 4.78 | 432 | 406 | 94.0 |
| 24*12 | 610*323.8 | 6.35 | 4.57 | 432 | 397 | 91.2 |
| 24*10 | 610*273 | 6.35 | 4.19 | 432 | 384 | 88.5 |
A copper nickel tee is a butt weld pipe fitting used to create a branch connection in a copper nickel piping system. It can be supplied as an equal tee or reducing tee depending on the pipe size arrangement.
An equal tee has the same diameter on all three ends, while a reducing tee has a smaller branch outlet. Equal tees are used for same-size branch connections, and reducing tees are used when the branch pipe size is smaller than the main pipe.
Common standards include DIN 86088, EEMUA 234 and ASME B16.9. The suitable standard depends on the application, project specification and piping system design.
The most common copper nickel materials are CuNi 90/10 and CuNi 70/30. These alloys are widely used in marine and seawater piping systems because of their excellent corrosion resistance and weldability.
Yes. Copper nickel tees can be supplied according to standard dimensions or customized drawings. Please provide size, wall thickness, material, standard and quantity when sending an inquiry.
Both CuNi 90/10 and CuNi 70/30 perform well in seawater applications. CuNi 70/30 offers higher strength and enhanced resistance in severe seawater conditions, making it suitable for demanding marine environments.
Yes. Copper nickel tees are widely used in commercial ships, naval vessels, offshore platforms, desalination plants and seawater cooling systems because of their durability and corrosion resistance.
The following Copper Nickel Tees may interest you
Further reading: Copper Nickel PipesCopper Nickel ElbowsCopper Nickel Pipe CapCopper Nickel ReducerCopper Nickel FlangesCopper Nickel Threaded Pipe Fittings