ASTM B111 UNS C71500 Copper Nickel Seamless Pipe OD 1/2"-12" Condenser & Boiler Tube

1.Product Description

• Copper-based nickel-alloy tubes, commercial grades: 90-10 (C70600, ~10% Ni) and 70-30 (C71500, ~30% Ni).

• Micro-additions of iron (Fe) and manganese (Mn) enhance seawater corrosion resistance and erosion resistance. The alloy exhibits a single-phase face-centered cubic (FCC) structure with no risk of phase embrittlement over a wide temperature range.

• Available in seamless (ASTM B466) and welded (ASTM B467) forms, featuring clean, oxide-free internal bores and precision cold-drawn dimensional tolerances.

2.Product Applications

• Marine & Offshore: Seawater cooling systems, firewater lines, ballast piping.

• Power Generation: Steam turbine condensers, feedwater heaters, air-cooler tube bundles.

• Desalination: Heating sections and evaporator tubes in MSF and MED plants.

• Oil & Gas Extraction: Platform utility piping, riser anti-corrosion sheathing.

• General Industry: Hydraulic tubing, chemical-resistant piping for corrosive media.

3.Product Advantages

• Ultra-low corrosion rate: ≤0.025 mm/year in seawater, with a self-healing surface oxide film.

• Natural biofouling resistance: Continuous copper ion release creates a biostatic surface, extending cleaning intervals by over 60% compared to stainless steel.

• Excellent strength-toughness balance: Tensile strength 275~345 MPa, elongation ≥25%, combining strength and ductility.

• Superior workability: Compatible with TIG welding, brazing, mechanical expansion, and cold bending (minimum bend radius 1.5D) – no risk of stress corrosion cracking (SCC).

• Long service life & recyclability: Design life 15~25 years, 100% recyclable, offering outstanding life-cycle economy.

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​4.Key Product Specifications

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.

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4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.