Bright Surface ASME SB163 N04400 Nickel-Copper Alloy Heat Exchanger U Bend Tube

• YUHONG brand goods have been already exported to more than 85 countries With more than 35 years' experience, because of strict quality control policy, excellent sales service, delivery on time. YUHONG won more and more new clients and got more and more repeat orders from old clients, in YUHONG People's mind: Quality is First Important!

Bright Surface ASME SB163 N04400 Nickel-Copper Alloy Heat Exchanger U Bend Tube

This product is a U-bend tube fabricated from N04400 nickel-copper alloy (Monel 400) as specified by the ASME SB163 standard, featuring a bright surface finish. Its defining characteristic is the cold-bending process that forms straight tubing into a precise U-shaped bend, while retaining the material's inherent excellent corrosion resistance and mechanical properties. It is designed for high-reliability and space-efficient heat exchange and fluid conveyance systems.

Material: N04400 (UNS N04400) Nickel-Copper Alloy, commonly known as Monel 400. It is a nickel (approx. 63-70%) and copper (approx. 28-34%) based, solid-solution strengthened alloy renowned for its exceptional resistance to a wide range of corrosive environments, including seawater, acidic, and alkaline solutions.

U-Bend Tube:Refers to straight tubing that has been formed (typically by cold bending) into a 180-degree U-shape with a specific bend radius (R). 

1.Chemical & Mechanical Properties

Mechanical Properties

Available Size Range

Outer Diameter (OD): Common range from 9.53mm (3/8") to 25.4mm (1"), other sizes available upon request.

Wall Thickness (WT): Common range from 0.8mm to 2.5mm (corresponding to different ODs).

U-Bend Radius (R): Customized according to customer design and tube bundle layout.

Straight Leg Length: Precisely cut as per customer drawings.

2. Key Advantages

• Corrosion Resistance: Monel 400 is highly resistant to corrosion in seawater and many acidic environments. This makes it ideal for applications in chemical processing, marine engineering, and oil and gas extraction.
• Mechanical Properties: The alloy maintains good mechanical properties at both elevated and sub-zero temperatures, making it suitable for a variety of temperatures in applications.
• Weldability: Monel 400 can be welded using most standard processes, although proper techniques should be employed to prevent cracking.
• Non-Magnetic: Monel 400 is non-magnetic, making it useful in applications where magnetic permeability is a concern.
• 
  

3. Key Applications

• Marine engineering.
  Chemical and hydrocarbon processing equipment.
  Gasoline and freshwater tanks.
  Crude petroleum stills.
  De-aerating heaters.
  Boiler feed water heaters and other heat exchangers.
  Valves, pumps, shafts, fittings, and fasteners.
  Industrial heat exchangers.
  Chlorinated solvents.
  Crude oil distillation towers.