Tube Bundle – ASME SB111 C71500 Seamless Tube for Desalination Brine Heaters

Overview

Our Tube Bundles are manufactured using ASME SB111 C71500 seamless tubes, a high-strength 70/30 Copper-Nickel alloy (Cu-Ni) known for exceptional performance in marine and seawater environments. These tube bundles are precision-engineered for heat exchanger applications such as brine heaters, evaporators, and condensers in desalination plants, where corrosion resistance and thermal conductivity are critical.

Material & Standards

• Material Specification: ASME SB111 / ASTM B111 – C71500 (70/30 Copper-Nickel)
• Composition: ~70% Copper, 30% Nickel, with additions of Iron and Manganese for improved strength
• Manufacturing Standard: Seamless tubing for superior integrity and leak-proof performance
• Design Codes: ASME Section VIII, TEMA (Tubular Exchanger Manufacturers Association) guidelines

Mechanical & Physical Properties

• Density: 8.95 g/cm³
• Melting Point: 1,170°C – 1,245°C
• Tensile Strength: ~52 ksi (360 MPa)
• Yield Strength: ~18 ksi (125 MPa)
• Elongation: 30% minimum
• Thermal Conductivity: ~29 W/m·K
• Maximum Working Temperature: Up to 300°C (572°F)
• Pressure Rating: Designed per ASME standards to handle high-pressure brine and steam applications

Corrosion Resistance

C71500 Copper-Nickel offers:

• Excellent resistance to seawater corrosion, biofouling, and stress cracking
• Superior resistance to chloride-induced pitting and crevice corrosion
• Minimal maintenance in aggressive saline environments

Custom Design Capabilities

• Tube OD range: 12.7 mm (1/2”) to 25.4 mm (1”)
• Wall thickness: Standard and heavy gauge available
• Tube length: Custom lengths up to 12 meters
• Tube layout: Triangular, square pitch, or custom arrangement
• Header options: Fixed tube sheet, floating head, or U-tube design
• Expanded or welded joints as per customer requirement
• Available with baffles, supports, and protective coatings

Applications

• Desalination Plants: Brine heaters, evaporators, condensers
• Marine & Offshore: Heat exchangers in seawater cooling systems
• Power Generation: Steam surface condensers and cooling systems
• Chemical & Petrochemical Plants: Corrosive heat transfer applications

Why Choose Our Tube Bundles?

• ASME-Compliant fabrication for guaranteed safety and quality
• Enhanced lifecycle in highly saline environments
• Precision engineering for maximum thermal efficiency
• Custom-built solutions to match any design specification

Upgrade your desalination system with high-performance C71500 Copper-Nickel Tube Bundles. Contact us for engineering support and a custom quotation.