All Products
CuNi 90/10 C70600 Elbow 90° LR ASME B16.9 Anti-Biofouling Seawater Pipe Fitting
| Place of Origin | Shanghai,China |
|---|---|
| Brand Name | TOBO |
| Certification | ISO/TUV/SGS |
| Model Number | Copper Nickel Elbow |
| 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 Elbow | End Connection | Butt Weld, Socket Weld, Threaded |
|---|---|---|---|
| Degree | 45/90/180 | Standards | ASTM B466, ASTM B111, ASTM B466 |
| Length | Customized | Pressure | High |
| Corrosion Resistance | Excellent | Color | Silvery With A Slight Reddish Tint |
| Size | Customized | Durability | High |
| Wallthickness | Schedule 10 To Schedule 40 (varies By Specification) | Thermalconductivity | Approximately 29 W/m·K |
| End Type | Plain End | Pressurerating | Up To 3000 Psi (varies By Size And Thickness) |
| Warranty | 1 Year | Grade | Cooper |
Product Description
CuNi 90/10 C70600 Elbow 90° LR ASME B16.9 Anti-Biofouling Seawater Pipe Fitting
1. Product Description
A copper nickel elbow is a pipe directional fitting made of copper-nickel alloy, mainly used to change the flow direction of the medium inside a pipeline. The commonly used materials are 90/10 copper nickel and 70/30 copper nickel. 90/10 copper nickel corresponds to UNS C70600 and offers excellent seawater corrosion resistance, good thermal conductivity, and relatively good cost effectiveness. 70/30 copper nickel corresponds to UNS C71500 and has a higher nickel content, providing better strength, erosion resistance, and corrosion resistance for more demanding piping systems.
Copper nickel elbows can be manufactured by seamless or welded processes and are processed through hot forming, cold forming, solution annealing, pickling, and other operations. Common angles include 45°, 90°, and 180°. According to the bending radius, they can be divided into long radius and short radius. According to the end connection type, they can be divided into butt weld, socket weld, threaded, press, flange, and bell end types. Product dimensions and materials can generally comply with ASTM B466, ASTM B467, ASME B16.9, ASME B16.28, MSS SP-43, EEMUA 146, and other standards.
2. Product Applications
Copper nickel elbows are widely used in piping systems requiring resistance to seawater, brine, and corrosive media. Main applications include:
Marine and shipbuilding: seawater cooling systems, fire water systems, ballast systems, bilge systems, and domestic seawater piping.
Offshore oil and gas: offshore production platforms, floating production storage and offloading units, subsea pipelines, and seawater injection lines.
Desalination: seawater intake pipelines, reverse osmosis feed lines, and brine discharge lines.
Power generation: condenser cooling systems, circulating water pipelines, and cooling water systems.
Chemical industry: brine, corrosive liquids, and chemical media transportation pipelines.
Other fields: liquefied natural gas facilities, hydraulic piping, HVAC systems, and general industrial piping layouts.
3. Product Advantages
Strong corrosion resistance: good resistance in seawater, brine, and many non-oxidising acids, with resistance to pitting, crevice corrosion, stress corrosion, and erosion corrosion.
Anti-biofouling: the protective film formed on the copper-nickel surface helps inhibit marine organism attachment and reduces the risk of pipe blockage.
Good strength and toughness: capable of withstanding higher flow rates, pressure fluctuations, and vibration fatigue, suitable for long-term operation.
Good thermal conductivity: suitable for heat exchangers, condensers, and cooling systems requiring efficient heat transfer.
Good fabrication and welding performance: easy to cold form, weld, and install, and can also be connected with certain other metals.
Long service life: the protective film becomes stable during service, resulting in low corrosion rates and reduced maintenance costs.
Flexible material selection: 90/10 copper nickel is economical and practical, while 70/30 copper nickel is suitable for more severe corrosion and erosion conditions.
4. Product Functions
Changing fluid direction: used in piping systems to achieve 45°, 90°, or 180° direction changes.
Offsetting pipes: enables pipe offset, misalignment correction, and rearrangement within complex spaces.
Connecting pipes: reliably connects pipes through welding, press-fitting, threading, or other methods to form a sealed piping system.
Reducing turbulence: long radius elbows provide smoother fluid transition, reducing turbulence, pressure drop, and wear.
Providing corrosion-resistant joints: serves as a key connection fitting in highly corrosive media, extending the service life of the entire piping system.
Adapting to system layout: helps the piping system achieve a reasonable route and reduces unnecessary connection points and installation space.
5. Key Technical Parameters
| Parameter | Specification |
| Material Grade | UNS C70600, UNS C71500 |
| Common Alloy | 90/10 Copper Nickel, 70/30 Copper Nickel |
| Angle | 45°, 90°, 180° |
| Bending Radius | Long radius, short radius |
| Nominal Size | DN15 to DN600, 1/2 inch to 24 inch |
| Wall Thickness | Sch5S, Sch10S, Sch40S, Sch80S, Sch160S, XS, XXS |
| End Connection | Butt weld, socket weld, threaded, press, flange, bell end |
| Dimensional Standard | ASME B16.9, ASME B16.28, MSS SP-43, EEMUA 146 |
| Raw Material Standard | ASTM B466, ASTM B467, etc. |
| Chemical Composition (90/10) | Nickel: 9.0% to 11.0%, Iron: 1.0% to 1.8%, Manganese: ≤1.0%, Copper: balance |
| Chemical Composition (70/30) | Nickel: 29.0% to 33.0%, Iron: 0.4% to 1.0%, Manganese: ≤1.0%, Copper: balance |
| Tensile Strength | 90/10 approximately 303 MPa to 414 MPa; 70/30 approximately 380 MPa to 550 MPa |
| Yield Strength | 90/10 approximately 110 MPa and above; 70/30 approximately 170 MPa and above |
| Elongation | Generally not less than 30% |
| Density | Approximately 8.94 g/cm³ |
| Thermal Conductivity | Approximately 29 to 45 W/(m·K) |
| Seawater Corrosion Rate | Typically below 0.025 mm/year, lower after the protective film becomes stable |
| Operating Temperature | General seawater systems approximately -20°C to 120°C; press connections recommended -20°C to 95°C, peak 110°C |
| Pressure Rating | Press type commonly PN16; butt weld type can reach Class 150 to 2500 depending on wall thickness and standard |
FAQ
1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.
2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
Recommended Products