70/30 Cu-Ni Equal Tee Corrosion Resistant ASME B16.9 Buttweld Fitting for HVAC
70/30 Cu-Ni Equal Tee Corrosion Resistant ASME B16.9 Buttweld Fitting for HVAC
1. Product Description
The Copper Nickel Equal Tee is a high-corrosion-resistance pipe branch fitting precision-manufactured from copper-nickel alloy (Cu-Ni 90/10 or 70/30). All three ports have identical inside diameters, allowing a perpendicular branch to be created from the main pipeline for equal flow splitting or merging. The product complies with international standards such as ASME B16.9, ASTM B466/B467, and DIN 86086, and is available in seamless, welded, and fabricated forms. With excellent seawater corrosion resistance and anti-biofouling properties, it is widely used in demanding industrial fields such as shipbuilding, marine engineering, and desalination.
2. Product Applications
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Shipbuilding:Seawater cooling, ballast, firewater, bilge systems
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Offshore platforms:Seawater lift, process cooling, firewater ring mains
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Desalination:Intake lines, brine circulation, concentrate discharge
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Chemical/Petrochemical:Chloride/weak acid media, heat exchanger cooling water
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Power (nuclear/thermal):Auxiliary cooling, condenser circulating water
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Others:Coastal fire sprinklers, HVAC chilled water, aquarium circulation
3.Product Advantages
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Excellent seawater corrosion resistance – 3~5× lifespan of carbon steel, resists pitting & SCC
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Anti-biofouling – Copper ion release inhibits barnacles/algae, reduces maintenance
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Good mechanical properties – High strength, good ductility, low-temperature toughness
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Good weldability – GTAW/GMAW, no preheat or PWHT required
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Erosion-corrosion resistance – Stable at seawater velocity ≤3 m/s
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Low life-cycle cost – Long life, less replacement, lower total cost than carbon steel & some stainless
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Full range & custom – 1/2″~48″, custom non-standard sizes, multiple connection types
4.Key Technical Parameters
| Parameter | Value |
| Material Grade | Cu-Ni 90/10 (UNS C70600), Cu-Ni 70/30 (UNS C71500) |
| Product Type | Equal Tee |
| Nominal Size | DN15 ~ DN1200 (1/2″ ~ 48″) |
| Wall Thickness Schedule | Sch10s, Sch40s, Sch80s, Sch160, XS, XXS |
| Manufacturing Standards | ASTM B122/B171/B466/B467; ASME B16.9/B16.28; MSS-SP-43; DIN 86086; EEMUA 146; EN 10253 |
| Connection Type | Butt Weld (BW) / Socket Weld (SW) / Threaded (THD) |
| Pressure Rating | Class 150 / 300 / 600; Max. 3000 psi |
| Operating Temperature | -50℃ to +300℃ |
| Chemical Composition (C70600) | Cu balance; Ni 9.0~11.0%; Fe 1.0~1.8%; Mn ≤1.0%; Zn ≤1.0% |
| Mechanical Properties | Tensile ≥275 MPa; Yield ≥105 MPa; Elongation ≥30%; Hardness HRB 52~78 |
FAQ
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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.
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