The industrial sector is witnessing a significant advancement in piping technology with the introduction of high-temperature high-pressure seamless tubes made from CUNI 90/10 copper nickel alloy (C70600). These premium-grade pipes, available in 1" SCH40 6-meter lengths, are engineered to deliver exceptional performance in the most demanding environments, setting new standards for reliability and efficiency across multiple industries.
Breakthrough in Material Technology
The newly developed CUNI 90/10 copper nickel tubes represent a major leap forward in high-performance piping:
Superior Material Composition:
Copper (Cu): 88.6% minimum
Nickel (Ni): 9-11%
Iron (Fe): 1.0-1.8%
Manganese (Mn): 0.5-1.0%
Exceptional Performance Characteristics:
Temperature Range: -50°C to 400°C
Maximum Working Pressure: 1500 psi at 100°C
Thermal Conductivity: 40 W/m·K at 20°C
Coefficient of Thermal Expansion: 16.2 μm/m·°C
Technical Specifications and Standards Compliance
Product Specifications:
Size: 1" nominal diameter (33.4mm OD)
Schedule: SCH40 (3.38mm wall thickness)
Length: 6 meters standard
Form: Seamless construction
International Standards Compliance:
ASTM B466 - Standard Specification for Seamless Copper-Nickel Pipe and Tube
ASME SB466 - ASME Boiler and Pressure Vessel Code
DIN 86096 - Copper-nickel pipes for shipbuilding
EN 12451 - Copper and copper alloys - Seamless, round tubes for heat exchangers
Manufacturing Excellence
Advanced Production Process:
Continuous casting for uniform grain structure
Hot extrusion for seamless formation
Cold drawing for precise dimensional control
Solution annealing for optimal mechanical properties
Quality Assurance Protocol:
100% ultrasonic testing for defect detection
Hydrostatic testing to 1.5 times working pressure
Eddy current testing for wall thickness verification
Full dimensional inspection and verification
Key Industry Applications
Oil and Gas Sector:
Offshore platform piping systems
Subsea umbilicals and flowlines
LNG processing equipment
Refinery cooling circuits
Power Generation:
Heat exchanger tubes
Condenser systems
Desalination plant components
Nuclear power plant applications
Marine and Offshore:
Shipboard seawater systems
Ballast water piping
Offshore platform infrastructure
Desalination systems
Industrial Processing:
Chemical processing equipment
Heat recovery systems
Industrial cooling systems
Process piping applications
Performance Advantages
Corrosion Resistance:
Excellent resistance to seawater corrosion (0.03 mm/year maximum)
Superior biofouling resistance
Good resistance to stress corrosion cracking
Excellent performance in sour service environments
Mechanical Properties:
Tensile Strength: 310 MPa minimum
Yield Strength: 110 MPa minimum
Elongation: 30% minimum
Hardness: 80 HRB maximum
Thermal Performance:
Excellent heat transfer characteristics
Good thermal stability
Low thermal expansion coefficient
Maintains properties at elevated temperatures
Quality Certifications and Testing
Comprehensive Testing:
Pressure testing to 3000 psi
Dimension verification per ASTM E29
Chemical analysis per ASTM E1476
Mechanical testing per ASTM E8/E8M
International Certifications:
ABS (American Bureau of Shipping)
DNV (Det Norske Veritas)
Lloyd's Register
Bureau Veritas
Manufacturing Capabilities
Production Capacity:
Annual production capacity: 10,000 tons
Maximum diameter: 6 inches
Maximum length: 15 meters
Custom sizes and specifications available
Advanced Equipment:
State-of-the-art extrusion presses
Computer-controlled drawing machines
Automated annealing furnaces
Robotic inspection systems
Technical Support Services
Engineering Support:
Application engineering consultation
System design assistance
Installation guidance
Maintenance recommendations
Customer Services:
Custom cutting and fabrication
Just-in-time delivery
Technical documentation
On-site technical support
Market Impact and Industry Trends
The global market for high-performance copper nickel tubes shows:
6.5% CAGR growth through 2028
$2.5 billion market value by 2025
Increasing demand from offshore energy sector
Growing adoption in desalination projects
Sustainability Features
Environmental Benefits:
100% recyclable material
Long service life reduces resource consumption
Energy-efficient manufacturing process
Reduced maintenance requirements
Compliance:
REACH compliance
RoHS compliance
Environmental Product Declarations
Sustainable manufacturing practices
Case Study: Offshore Platform Application
A recent installation in the North Sea demonstrated:
Zero corrosion after 3 years of service
40% reduction in maintenance costs
Excellent performance in temperatures from -20°C to 120°C
Perfect weldability and installation performance
Future Developments
Research and Development:
Enhanced alloy formulations
Improved manufacturing processes
Smart tube technology with embedded sensors
Advanced coating systems
Market Expansion:
New geographic markets
Additional industry applications
Technology partnerships
Custom solution development
Conclusion
The introduction of these high-temperature high-pressure CUNI 90/10 copper nickel tubes represents a significant advancement in industrial piping technology. With their exceptional corrosion resistance, mechanical performance, and reliability, these tubes are set to become the industry standard for demanding applications across multiple sectors.