ASTM B111 C71500 Copper Nickel Alloy Seamless Tube for Heat Exchanger and Condenser

ASTM B111 C71500 copper nickel alloy seamless tube is a Cu-Ni 70/30 alloy tube designed for condenser, heat exchanger, and marine engineering applications.

Manufactured according to ASTM B111/B111M requirements, C71500 tubes are produced as seamless copper alloy tubes for thermal equipment including surface condensers, evaporators, and heat exchangers.

C71500 copper nickel alloy contains copper as the base material with nickel alloying elements, providing a material option for applications requiring copper alloy tube characteristics in industrial and marine environments.

Material and Standard

C71500 Copper Nickel Alloy (Cu-Ni 70/30)

Standard: ASTM B111 / ASME SB111
Material Grade: UNS C71500
Material Type: Copper Nickel Alloy
Common Designation: 70/30 Copper Nickel
Tube Type: Seamless Tube

C71500 is classified as a 70-30 copper-nickel alloy, commonly used for condenser and heat exchanger tube applications under ASTM B111 specifications.

Chemical Composition

Typical composition characteristics of C71500 copper nickel alloy include:

The exact chemical composition shall comply with ASTM B111 requirements.

Manufacturing Process

ASTM B111 C71500 seamless tubes are manufactured through controlled production processes:

Casting and Billet Preparation

Copper nickel alloy billets are prepared according to material requirements.

Extrusion

The billets are processed into preliminary tube forms through extrusion.

Cold Drawing

Cold drawing is applied to achieve specified outside diameter, wall thickness, and dimensional requirements.

Annealing and Finishing

Heat treatment, straightening, surface finishing, and inspection are performed according to applicable specifications.

Technical Features

Copper Nickel Alloy Structure

C71500 combines copper and nickel alloy elements to provide a suitable material solution for condenser and heat exchanger tube applications.

Seamless Tube Construction

The seamless manufacturing method provides uniform tube geometry without longitudinal weld seams.

Heat Transfer Equipment Compatibility

C71500 tubes are commonly used in equipment where copper alloy tubes are required for heat transfer systems.

Product Specifications

Available Sizes

Typical supply parameters include:

Tube dimensions can be supplied according to equipment design requirements and customer specifications.

Applications

Heat Exchanger Systems

C71500 copper nickel tubes are commonly used in:

• Shell and tube heat exchangers
• Industrial cooling systems
• Thermal processing equipment

Condenser Equipment

Applications include:

• Surface condensers
• Power generation condensers
• Cooling systems

Marine Engineering

Typical applications include:

• Marine heat exchangers
• Seawater cooling systems
• Shipboard thermal equipment

Quality Control and Inspection

Inspection procedures may include:

Chemical Analysis

• Alloy composition verification

Dimensional Inspection

• Outer diameter measurement
• Wall thickness inspection
• Length verification

Non-Destructive Testing

• Eddy Current Testing (ET)
• Ultrasonic Testing (UT)
• Hydrostatic Testing

Inspection requirements can be adjusted according to project specifications.

Packaging

C71500 copper nickel alloy seamless tubes are packaged according to transportation and storage requirements.

Available packaging methods:

• Bundled tubes
• Protective wrapping
• Wooden cases
• Export standard packaging

Tube marking can include:

• Material grade
• Standard designation
• Size information
• Heat number