Views: 0 Author: Site Editor Publish Time: 2025-12-12 Origin: Site
In the world of critical fluid and gas transport, where failure is not an option, material selection is paramount. For environments plagued by corrosion, erosion, and biofouling, C70600 Cupronickel (90/10 Cu-Ni) stands as a proven, reliable engineering solution. Our precision-engineered C70600 tubes and pipes are not just components; they are the durable arteries of your most vital systems.
C70600 copper-nickel alloy, with its nominal composition of 90% copper and 10% nickel, offers exceptional resistance to seawater corrosion, stress-corrosion cracking, and biofouling. The alloy forms a strong, stable, and self-repairing protective oxide layer, ensuring long-term performance in both flowing and stagnant conditions.
Superior Seawater Compatibility: Ideal for shipboard condensers, heat exchangers, desalination units, offshore platform piping, and saltwater intake lines. It exhibits high resistance to impingement and crevice corrosion.
Excellent Macro-fouling Resistance: Minimizes the attachment of barnacles and mussels, reducing maintenance downtime and preserving thermal efficiency in heat transfer applications.
High Thermal Conductivity: Ensures efficient performance in condenser and heat exchanger applications, contributing to overall system energy efficiency.
Outstanding Fabricability: Can be readily welded, brazed, and formed using standard techniques, allowing for flexible and cost-effective system installation and fabrication.
Long Service Life & Low Life-Cycle Cost: The combination of durability, low maintenance, and reliability translates into significant cost savings over the lifespan of your installation.
Marine & Shipbuilding: Condenser and heat exchanger tubes, firefighting systems, seawater cooling lines, hydraulic and instrumentation tubing.
Power Generation: Feedwater heaters, condenser tubes in coastal and nuclear power plants.
Desalination & Water Treatment: Evaporator and heat recovery tubes in Multi-Stage Flash (MSF) and Multi-Effect Distillation (MED) plants.
Oil & Gas: Offshore platform piping systems, splash zone sheathing, ballast water systems.
Chemical Processing: Handling brines, chlorides, and other non-oxidizing acids.
Our C70600 tubes and pipes are manufactured to stringent international standards (including ASTM B111, B466, B467), ensuring consistent quality, dimensional accuracy, and performance you can trust. We offer a comprehensive range of sizes, schedules, and tempers to meet your precise engineering specifications.
Q1: How is C70600 superior to stainless steel in seawater?
A: C70600 offers superior resistance to chloride-induced pitting, stress corrosion cracking, and marine biofouling compared to standard stainless steels like 316.
Q2: What is its maximum service temperature?
A: The recommended maximum continuous service temperature is 260°C (500°F).
Q3: How does it resist biofouling?
A: A protective surface layer releases trace copper ions, naturally inhibiting the attachment and growth of marine organisms like barnacles.
Q4: Is it weldable?
A: Yes, easily. Use GTAW (TIG) or GMAW (MIG) with matching ERCuNi filler metal and proper shielding gas.
Q5: What standards does it meet?
A: Our tubing conforms to key ASTM standards: ASTM B111/B111M (condenser tubes), B466/B466M (seamless pipe/tube), and B467 (welded pipe).
