In a landmark development for industrial piping systems, manufacturers have introduced high-temperature high-pressure seamless tubes manufactured from CUNI 90/10 copper nickel alloy (UNS C70600). These advanced 1" SCH40 6-meter pipes are engineered to withstand the most challenging operating conditions while delivering unmatched performance and reliability across critical industrial applications.
Cutting-Edge Material Science Breakthrough
The CUNI 90/10 copper nickel alloy represents a significant advancement in metallurgical engineering:
Optimal Composition:
Copper (Cu): 88.6% min (ensuring excellent conductivity)
Nickel (Ni): 9-11% (providing corrosion resistance)
Iron (Fe): 1.0-1.8% (enhancing mechanical strength)
Manganese (Mn): 0.5-1.0% (improving workability)
Exceptional Performance Parameters:
Temperature Tolerance: -196°C to 400°C
Pressure Rating: 2000 psi at 100°C
Thermal Conductivity: 45 W/m·K
Coefficient of Expansion: 16.5 μm/m·°C
Technical Specifications and Compliance
Product Configuration:
Nominal Size: 1 inch (33.4 mm OD)
Wall Thickness: 3.38 mm (SCH40)
Standard Length: 6 meters
Manufacturing Process: Seamless
International Standards:
ASTM B466 / ASME SB466
DIN 86096 (Marine Applications)
EN 12451 (Heat Exchanger Tubes)
ISO 13347 (Industrial Applications)
Manufacturing Excellence and Quality Assurance
Advanced Production Methodology:
Vacuum induction melting for purity control
Horizontal continuous casting
Pilger mill cold rolling
Solution annealing and pickling
Rigorous Quality Control:
100% non-destructive testing (UT, ET)
Hydrostatic testing at 3000 psi
Full dimensional verification
Chemical analysis for each heat
Key Industrial Applications
Energy Sector Applications:
Offshore oil and gas platforms
Subsea production systems
LNG liquefaction and regasification
Power plant condenser tubes
Marine Engineering:
Seawater cooling systems
Ballast water management
Shipboard piping networks
Desalination plant components
Chemical Processing:
Acid handling systems
Heat exchanger networks
Process piping installations
Environmental control systems
Performance Advantages and Benefits
Corrosion Resistance:
Seawater corrosion rate: <0.025 mm/year
Excellent erosion-corrosion resistance
Superior biofouling resistance
Outstanding stress corrosion cracking resistance
Mechanical Properties:
Tensile Strength: 320-380 MPa
Yield Strength: 120-170 MPa
Elongation: 35-40%
Hardness: 80-90 HRB
Thermal Performance:
Exceptional heat transfer efficiency
Minimal thermal fatigue
Stable thermal expansion characteristics
Consistent performance across temperature ranges
Quality Certification and Testing
Comprehensive Testing Protocol:
Pressure testing to 1.5x design pressure
Flattening and expansion tests
Microstructure examination
Corrosion testing per ASTM G48
International Certifications:
ABS Type Approval
DNV-GL Certification
Lloyd's Register Approval
PED 2014/68/EU Compliance
Manufacturing Capabilities and Capacity
Production Statistics:
Annual capacity: 15,000 metric tons
Maximum OD: 8 inches
Maximum wall thickness: 12 mm
Custom lengths up to 18 meters
State-of-the-Art Facilities:
Automated production lines
Computer-controlled heat treatment
Robotic inspection systems
Advanced packaging solutions
Technical Support and Engineering Services
Comprehensive Support:
Application engineering consultation
System design optimization
Installation procedure development
Maintenance and inspection guidance
Value-Added Services:
Custom cutting and end preparation
Just-in-time delivery programs
Technical documentation packages
On-site technical assistance
Market Analysis and Industry Trends
Global Market Outlook:
7.2% CAGR projected through 2030
$3.8 billion market size by 2027
Growing demand from renewable energy sector
Increasing offshore exploration activities
Sustainability and Environmental Impact
Eco-Friendly Attributes:
100% recyclable material
Long service life reduces resource consumption
Energy-efficient manufacturing process
Reduced environmental footprint
Regulatory Compliance:
REACH and RoHS compliance
ISO 14001 environmental management
Sustainable sourcing practices
Carbon footprint reduction initiatives
Case Study: LNG Processing Facility
Recent installation demonstrated:
Zero maintenance requirements after 4 years
50% longer service life compared to alternatives
Excellent performance in cryogenic to high-temperature cycling
Perfect safety record with no failures reported
Innovation and Future Development
Research Initiatives:
Nano-structured surface treatments
Enhanced alloy compositions
Smart monitoring integration
Advanced joining technologies
Market Expansion Strategies:
Emerging market penetration
New application development
Strategic partnerships
Technology licensing programs
Conclusion
The introduction of these high-performance CUNI 90/10 seamless tubes represents a quantum leap in piping technology for extreme service conditions. Their exceptional combination of corrosion resistance, mechanical strength, and thermal performance makes them the ideal choice for critical applications where failure is not an option.