ASTM B111 C71500 Seamless Copper-Nickel Alloy Tubes – High-Efficiency Heat Transfer & Saltwater Corrosion Resistance for Marine & Industrial Systems
Product: ASTM B111 C71500 Seamless Copper-Nickel Alloy Tubes
Material & Design:
- Base Alloy: C71500 (CuNi30Mn1Fe), a 70/30 copper-nickel alloy with superior corrosion resistance and thermal conductivity.
- Dimensions: Outer diameter 10–159mm, wall thickness 1–20mm (customizable).
- Standards: Complies with ASTM B111, ASME SB111, and EN 12451 for marine and industrial applications.
Technical Data:
| Parameter | Value |
| Composition (wt%) | Cu (65–70%), Ni (29–33%), Fe (0.4–1.0%), Mn (1.0% max) |
| Density | 8.94 g/cm³ |
| Melting Point | 1240°C |
| Max Operating Temp | 400°C |
| Pressure Rating | 150+ MPa (welded joints) |
Applications:
- Marine Systems: Condensers, seawater piping, and offshore platforms.
- Industrial Heat Exchangers: Oil refineries, chemical processing, and power plants.
- HVAC & Desalination: Resists biofouling and scaling in evaporators.
FAQ:
Q: How does C71500 compare to other copper-nickel alloys like C70600 (90/10)?
A: C71500 (70/30) offers higher strength and corrosion resistance than C70600, especially in high-velocity seawater.
Q: Can these tubes be welded or bent?
A: Yes, they support TIG welding and cold bending without cracking due to excellent ductility (elongation ≥15%).
Q: Do you offer anti-fouling coatings?
A: Standard tubes have natural anti-fouling properties, but epoxy coatings can be added for enhanced protection.
About Yuhong Holding Group Co., Ltd
With 20+ years of expertise, Yuhong Holding Group is a leading manufacturer of high-performance finned tubes and seamless heat exchanger tubes, exporting to 80+ countries and ranking among China’s top 5 finned tube exporters. Equipped with 55 production lines, 20,000㎡ facility, and cutting-edge technology, we deliver unmatched quality and service.
Why Choose Yuhong?
- Global Trust: 80+ countries served with ISO-certified quality control.
- Custom Solutions: Tailored dimensions, coatings, and testing (hydraulic, ultrasonic).
- End-to-End Support: From design to logistics, including 24/7 technical assistance.
Contact Us:
Email: jimmy@steelseamlesspipe.com
WhatsApp: +86 18892647377
Website: www.steelfintube.com
