Heat Exchanger Tubes

Product Overview: Heat Exchanger Tubes

Premium Nickel Alloy U-Bend Tubes represent the pinnacle of heat transfer technology, specifically engineered for the most demanding industrial applications. These critical components form the heart of heat exchangers, condensers, and high-temperature reactors across petrochemical, nuclear power, and offshore industries.

Crafted from superior-grade materials including Inconel 625, Hastelloy C-276, and Monel 400, our heat exchanger tubes deliver exceptional performance in environments where standard materials fail. Manufactured to exacting standards including ASTM B163, ASME SB622, and TEMA Standards, these tubes provide unmatched resistance to chloride-induced corrosion, stress cracking, and high-temperature creep, consistently delivering service life exceeding 15 years in continuous operation.

Technical Specifications: Precision Engineering

Materials & Manufacturing Excellence

Available Grades:

• Inconel 600/625/800HT

• Hastelloy C-22/C-276

• Alloy 20CB3

• Monel 400

• Custom alloys available

Compliance Standards:

• ASTM B163/B704/B725

• EN 10216-5

• NACE MR0175

• ASME Section VIII

• TEMA Standards

Surface Finish Options:

• Annealed & Pickled (standard)

• Electro-Polished (Ra ≤ 0.5μm)

• Shot Peened (for enhanced fatigue resistance)

• Custom finishes available

Design & Dimensional Specifications

Bend Configuration:

• Bend Radius: 1.5D to 5D (custom radii available)

• U-Bend Angle Tolerance: ±0.5° (laser-calibrated precision)

• Straight Leg Lengths: Customizable to specification

Diameter Range:

• Outer Diameter: Φ6mm to Φ50mm

• Wall Thickness: 0.5mm to 6mm

• Length: Up to 30 meters (custom lengths available)

Performance Characteristics

Temperature Capability:

• Standard Operating Range: -200°C to 1100°C

• Peak Temperature (short-term): 1300°C

• Cryogenic Applications: Certified to -196°C

Pressure Rating:

• Maximum Working Pressure: Up to 15,000 PSI

• ASME BPVC Section VIII compliant

• Custom high-pressure designs available

Corrosion Resistance:

• Withstands 98% sulfuric acid environments

• Excellent seawater corrosion resistance

• Resists molten sulfur and other aggressive media

• Chloride stress corrosion cracking resistant

Key Advantages: Why Our Heat Exchanger Tubes Excel

✅ Superior Corrosion Protection

Zero Intergranular Corrosion through advanced solution annealing processes that eliminate carbide precipitation. All tubes are ASTM G28A certified for guaranteed performance in aggressive environments.

✅ Enhanced Mechanical Integrity

Vibration Fatigue Resistance achieved through precision CNC bending technology that ensures wall thinning remains below 8% at bend sections, maintaining structural integrity under cyclic loading conditions.

✅ Optimized Operational Efficiency

Low Maintenance Requirements thanks to electro-polished (EP) inner walls that reduce scaling by up to 90%, maintaining heat transfer efficiency and reducing cleaning frequency.

✅ Custom Engineering Solutions

Bespoke Design Capabilities including custom U-bend shapes, PTFE linings, and API 6A completion specifications to meet your exact application requirements.

Applications: Industry-Specific Solutions

Petrochemical Processing

• Hydroprocessing reactor bundles

• Sulfur recovery unit exchangers

• Crude oil heat exchangers

• Catalytic reforming units

Nuclear Power Generation

• Steam generator U-tubes

• Reactor cooling systems

• NQA-1 nuclear certified components

• Emergency core cooling systems

LNG & Cryogenic Processing

• Sub-zero coiled-tube exchangers (-196°C)

• LNG vaporizers

• Cryogenic storage systems

• Natural gas processing

Offshore Platforms

• Seawater desalination units

• Oil and gas cooling systems

• Seawater heat exchangers

• FPSO processing equipment

New Energy Applications

• Molten salt thermal storage systems

• Hydrogen high-pressure exchangers

• Carbon capture heat exchangers

• Geothermal energy systems

Quality Assurance & Certifications

International Compliance

• ISO 9001:2015 Quality Management System

• ISO 14001:2015 Environmental Management

• PED 2014/68/EU Pressure Equipment Directive

• NORSOK M-650 Material Compliance

• NACE MR0175 Sulfide Stress Corrosion Certification

Rigorous Testing Protocols

• 100% Eddy Current Testing (ET) for defect detection

• Helium Leak Detection with 1×10⁻⁹ mbarL/s sensitivity

• Intergranular Corrosion Testing per ASTM G28

• Stress Corrosion Cracking (SCC) evaluation

• Hydrostatic Testing to 1.5x design pressure

• Dimensional Verification with CMM technology

Complete Traceability

• Mill Test Certificates (MTC) with full chemical and mechanical properties

• Heat treatment batch codes for complete traceability

• Material origin documentation

• Non-Destructive Testing reports

• Certified Material Test Reports (CMTR)

Packaging & Logistics: Global Delivery Excellence

Protective Packaging

• Rust-Proof VCI Film wrapping for corrosion protection

• Custom Foam Spacers to prevent transit damage

• Steel-Framed Crates for maximum protection

• Environmental Sealing for sensitive applications

Special Handling Capabilities

• -50°C Containers for cryogenic tube transportation

• Air-Ride Trucks for nuclear-grade component delivery

• Climate-Controlled Shipping for sensitive materials

• Export Packaging compliant with international standards

Delivery Performance

• Standard Lead Time: 25-35 days

• Nuclear/API Custom Orders: 50-70 days

• Emergency Expedite Services available

• Global Logistics Network covering all major industrial regions

Why Choose Our Heat Exchanger Tubes?

🔹 Manufacturing Excellence

Global Top 3 Production Capacity with fully automated CNC bending centers capable of producing over 2 million linear meters per month. State-of-the-art manufacturing facilities equipped with the latest bending and testing technology.

🔹 Technical Expertise

R&D Partnerships with industry leaders including co-developed high-temperature sulfur corrosion solutions with Shell R&D. Continuous innovation in material science and manufacturing processes.

🔹 Engineering Support

Data-Driven Technical Support including complimentary ANSYS Fluent flow resistance simulation reports with every quotation. Our engineering team provides comprehensive technical assistance from design through installation.

🔹 Supply Chain Efficiency

Zero Inventory Burden with Just-In-Time production capabilities and Minimum Order Quantity of 50 meters. Flexible manufacturing approach that adapts to your project schedule and requirements.

🔹 Global Service Network

Worldwide Technical Support with service centers in major industrial regions. Local expertise with global manufacturing capabilities ensures responsive support and rapid problem resolution.

Contact Our Technical Team Today

Ready to discuss your heat exchanger tube requirements? Our technical specialists are available to provide:

• Material Selection Guidance

• Application-Specific Recommendations

• Competitive Quotations

• Technical Documentation

• Sample Arrangements

Request a quotation or technical consultation today and experience the difference that premium Nickel Alloy U-Bend Tubes can make in your heat exchange applications.