Space Saving CuNi 70/30 Copper Nickel Reducing Elbow, 90° SW ASME B16.5

Space Saving CuNi 70/30 Copper Nickel Reducing Elbow, 90° SW ASME B16.5

1.  Product Description

Copper nickel elbows are pipe fittings made of copper-nickel alloy, commonly grades C70600 (90/10) and C71500 (70/30). They are manufactured by hot pushing or cold working followed by annealing, resulting in a uniform microstructure with no residual welding stress. These elbows offer excellent resistance to seawater, brackish water, and various corrosive chemicals, while providing natural anti-fouling properties. They are widely used in shipbuilding, offshore engineering, and chemical pipeline systems.

2.Product Advantages

• Outstanding seawater corrosion resistance: Quickly forms a stable oxide film on the surface, with almost no pitting or crevice corrosion during long-term service.

• Superior anti-fouling performance: Continuously releases low levels of copper ions, effectively preventing attachment of barnacles, mussels, algae, and reducing cleaning frequency.

• Good weldability: Suitable for TIG, MIG, and manual arc welding. No preheating required before welding, no post-weld heat treatment needed. Weld strength and corrosion resistance are comparable to the base material.

• Reliable mechanical properties: Tensile strength ≥290 MPa, elongation after fracture ≥30%, capable of withstanding system water hammer pressure and vibration loads.

• Full quality assurance: Mill test certificates provided with each shipment. Third-party inspection reports and classification society certificates (ABS, DNV, BV, CCS, etc.) available upon contract agreement.

​3.Product Functions

• Change pipeline direction horizontally or vertically at preset angles (45°, 90°, 180°).

• Maintain smooth fluid flow inside the elbow, reduce turbulence and local pressure drop, and improve system transport efficiency.

• Serve as connection hubs in piping networks, combining with straight pipes, reducers, flanges, tees, valves, etc., to form complete conveying systems.

• Provide long-term protection of the pipe inner wall under severe corrosive environments, preventing leakage or perforation failures caused by medium attack.

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​4.Key Parameters

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.