CuNi 70/30 Copper Nickel Equal Tee ASME B16.9 Buttweld Fitting Corrosion Resistant Marine Grade

Place of Origin Shanghai,China
Brand Name TOBO
Certification ISO/TUV/SGS
Model Number Copper Nickel Equal Tee
Minimum Order Quantity 1PC
Price Negotiable
Packaging Details Standard Shipping Package
Delivery Time 15-30 Workdays
Payment Terms T/T, Western Union
Supply Ability 10Ton/Month
Product Details
Product Name Copper Nickel Equal Tee Mode Of Connection Welding
Color Silvery Metallic Design Standard ASME B16.22
Pressure Rating 150LB - 300LB Connection Welded
Type Equal Tee Manufacturingprocess Seamless Or Welded
Temperature Rating -20°C - 300°C Packaging Type Carton Box
Package Wooden Case Key Features Excellent Seawater Corrosion Resistance
Grade C70600 Worksday 15-30days
Process Seamless / Welded / Fabricated Surface Smooth
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Corrosion Resistant Copper Nickel Equal Tee

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ASME B16.9 CuNi 70/30 Equal Tee

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Marine Grade Buttweld Copper Nickel Tee

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Product Description

CuNi 70/30 Copper Nickel Equal Tee ASME B16.9 Buttweld Fitting Corrosion Resistant Marine

 

1. Product Description
Copper Nickel Equal Tee is a T-shaped pipe fitting made from copper-nickel alloy, typically Cu-Ni 90/10 (UNS C70600) or Cu-Ni 70/30 (UNS C71500). It has three identical-diameter ports and is used for perpendicular branch connections in piping systems. The fitting is manufactured by forging or seamless process and complies with ASTM B466, ASME B16.9, MSS SP-43, and DIN 86086. The 90/10 alloy contains approximately 90% copper and 10% nickel, with controlled additions of iron and manganese. The 70/30 alloy contains 29–33% nickel and offers higher corrosion resistance in aggressive environments.

 

2. Product Applications
Shipbuilding and marine engineering: seawater cooling systems, ballast water systems, fire fighting mains, bilge and sewage discharge systems.

Offshore oil and gas platforms: seawater lift pipes, platform equipment cooling, firewater ring mains, seawater injection systems.

Desalination plants: intake pipelines, brine circulation, reverse osmosis feed distribution, concentrate outfall.

Petrochemical industry: transportation of chloride-containing, saline, and weakly acidic media.

Power generation: condenser cooling water systems, essential service water in nuclear plants, circulating cooling water in thermal plants.

Other fields: coastal fire facilities, large HVAC systems, marine seawater retrofit projects.

 

3. Product Advantages
Outstanding seawater corrosion resistance: forms a stable protective film in static and flowing seawater; pitting and crevice corrosion resistance far exceeds 316L stainless steel. Corrosion rate is less than 0.025 mm/year in marine environments.

Natural anti-fouling: continuously releases trace copper ions, effectively preventing marine organism adhesion and growth without external coatings or electrolytic systems. Biofouling attachment rate is more than 60% lower than 316L.

Excellent weldability: good ductility for cold bending and flaring; no preheating or post-weld heat treatment required; weld metal properties match the base metal.

High flow velocity tolerance: safe operation at seawater velocities up to 3.5 m/s, outperforming common copper alloys.

Life-cycle economics: slightly higher initial cost than carbon steel but maintenance-free or very low maintenance over service life; overall cost reduced by more than 40%.

Long service life: marine environment service life of 25 years or more.

 

4. Product Functions
Flow distribution and combination: three identical-diameter openings allow one fluid stream to be split into two or two streams to be combined into one.

Perpendicular branch connection: provides a 90° branch connection for perpendicular flow branching in pipeline systems.

Balanced flow: ensures balanced flow distribution across all three ports with minimal pressure loss and no turbulent flow.

Corrosion-resistant fluid conveyance: the copper-nickel alloy construction ensures safe conveyance of seawater and other corrosive media over extended periods.

System integrity: maintains structural integrity and leak-tight performance under high-temperature and high-pressure conditions.

 

5. Key Technical Parameters​

Parameter Specification
Material Grade Cu-Ni 90/10 (UNS C70600), Cu-Ni 70/30 (UNS C71500)
Chemical Composition (C70600) Cu: 88.6% min, Ni: 9.0–11.0%, Fe: 1.0–1.8%, Mn: ≤1.0%
Chemical Composition (C71500) Cu: Balance, Ni: 29.0–33.0%, Fe: 0.4–1.0%, Mn: ≤1.0%
Size Range 1/2″–48″ (DN15–DN1200)
Wall Thickness / Schedule Sch10s, Sch40s, Sch80s, Sch160, XS, XXS
Manufacturing Standards ASTM B466/B467; ASME B16.9; MSS SP-43; DIN 86086
Connection Type Butt Weld / Socket Weld / Threaded
Tensile Strength 303–414 MPa (44,000–60,000 psi)
Yield Strength (0.2%) Approximately 110–135 MPa (16,000–20,000 psi)
Elongation 30–42%
Density 8.94 g/cm³
Temperature Range -196°C to +400°C
Pressure Rating Class 150, 300, 600; Max. 3000 psi
Surface Finish Smooth, Pickled and Passivated
Corrosion Rate (Seawater) Less than 0.025 mm/year

 

CuNi 70/30 Copper Nickel Equal Tee ASME B16.9 Buttweld Fitting Corrosion Resistant Marine Grade

 

 

FAQ

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