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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.
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...