70/30 CuNi Reducing Tee Butt Welding Fittings ASME B16.5 Class150 Forged

Product Specification

70/30 CuNi Reducing Tee Butt Welding Fittings ASME B16.5 Class150 Forged Offshore

1. Product Description

The Copper Nickel Reducing Tee is a forged or extruded pipe fitting manufactured from corrosion-resistant CuNi alloys, offered in 90/10 (UNS C70600) and 70/30 (UNS C71500) compositions. Its T-shaped geometry comprises a full-diameter run end and two smaller-diameter branch ends, enabling simultaneous flow division and pipe size reduction within a single integral component.

This fitting is designed to meet the rigorous demands of seawater and aggressive fluid handling systems. It is available with butt-weld ends (beveled per ASME B16.25), socket-weld ends (square-cut with chamfer), or female threaded ends (NPT or BSP). The standard surface finish includes pickling and passivation, which removes mill scale and provides a chemically clean surface that enhances the natural corrosion resistance of the alloy.

2.Product Applications

• Marine and coastal infrastructure – installed in seawater intake, cooling, and discharge systems aboard commercial fleets, including container ships, bulk carriers, tankers, and cruise liners.

  Offshore energy production – utilized in platform seawater service pumps, heat exchanger cooling circuits, and emergency firewater distribution headers.

  Desalination facilities – employed in reverse osmosis pretreatment feed lines, high-pressure brine reject manifolds, and permeate collection systems.

  Power generation – integrated into condenser circulating water loops and auxiliary plant cooling networks at fossil-fuel, combined-cycle, and nuclear stations.

  General industrial sectors – found in refinery heat exchanger banks, chemical plant transfer piping, HVAC chiller water systems, and compressed air distribution.

  Commonly handled fluids: Seawater, estuary/brackish water, industrial freshwater, steam, compressed gases, and light petroleum products.

3. Product advantages:

Industry-leading corrosion resistance – CuNi alloys exhibit exceptionally low corrosion rates in chloride-rich environments, with documented performance of less than 0.025 mm per year in seawater. This translates to decades of trouble-free operation without wall thinning or pitting concerns.

Integrated anti-fouling protection – the release of copper ions from the alloy surface naturally discourages settlement of barnacles, mussels, and algae. This inherent property minimizes biofouling-related flow restriction and eliminates routine chemical or mechanical cleaning cycles.

High flow velocity capability – the material maintains its integrity under flow velocities up to 5 m/s in seawater, resisting erosion-corrosion mechanisms that quickly degrade lower-grade materials in similar conditions.

Fabrication-friendly – CuNi alloys are readily welded using standard TIG and MIG techniques with ERCuNi filler wire. Preheat requirements are modest (100–150°C only for sections over 20mm), simplifying field installation.

Reliable documentation – each fitting is accompanied by a material test certificate. Optional third-party surveyor inspection (DNV, ABS, Lloyd's) can be arranged to satisfy project-specific quality requirements.

Environmentally responsible – free from lead and other hazardous elements; fully recyclable at end of service life, contributing to sustainable project outcomes.

4.Product Specifications

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.