Custom Formed Coiled Tubing

Custom Formed Coiled Tubing Solution

BAOFENG provides custom formed coiled tubing solutions for projects requiring seamless tubing to be bent, coiled or formed into application-specific geometries according to customer drawings.

By combining long-length seamless tubing manufacturing with precision forming capability, BAOFENG can support customers from tube material selection through forming and finished component delivery.

From Coiled Tubing to Finished Form

Many projects require more than standard straight or coiled tubing.

The tubing may need to be formed into a specific geometry before it can be installed into equipment or integrated into the final system.

BAOFENG can manufacture seamless coiled tubing and then perform forming according to customer drawings, helping reduce downstream fabrication work.

BAOFENG has already supplied 316L seamless coiled tubing for an aerospace project and provided finished forming according to the customer’s drawing requirements.

Why Seamless Tubing for Formed Components?

When complex tubing assemblies are fabricated from multiple short sections, additional welds and joints may be required.

Using seamless tubing as the starting material can help:

• Reduce intermediate welds
• Reduce potential leakage points
• Improve continuity of the tube path
• Simplify downstream assembly
• Support cleaner finished tube structures
• Reduce on-site fabrication requirements

BAOFENG’s seamless tubing manufacturing process is designed to combine mechanical strength with sufficient flexibility for bending and forming operations.

Typical Forming Requirements

Custom formed tubing can be developed according to:

• Customer drawings
• Required tube geometry
• Bend radius
• Tube OD and wall thickness
• Material grade
• Straight-end requirements
• Dimensional tolerance
• Installation space
• Equipment interface requirements

The final forming method is selected according to the tube dimensions, material and required geometry.

Material Options

BAOFENG can support custom formed tubing in stainless steel and special alloy materials.

Typical material options include:

• 304 / 304L
• 316 / 316L
• 317L
• 321
• 347
• 904L
• 6Mo
• Duplex 2205
• Super Duplex 2507
• Alloy 625
• Alloy 825
• Monel 400
• Hastelloy C22
• Hastelloy C276

Material selection depends on forming requirements, corrosion environment, operating temperature and project specifications.

BAOFENG’s special alloy tube blank capability includes 904L, Alloy 825, Alloy 625, 2205, 2507, Monel 400 and Hastelloy C276.

Aerospace Forming Experience

BAOFENG has supplied 316L φ25 × 4 mm seamless coiled tubing for an aerospace project.

For this project, BAOFENG also provided tube forming according to the customer’s drawing requirements rather than supplying only the raw tubing.

This experience demonstrates the ability to combine seamless tubing manufacturing with project-specific forming and finished component preparation.

Precision Dimensional Control

Tube forming begins with stable dimensional control of the original tubing.

BAOFENG’s clean coiled tubing manufacturing uses rolling, drawing and vacuum heat treatment processes to maintain dimensional accuracy while supporting the mechanical properties required for subsequent bending and forming.

For reference, BAOFENG’s technical materials note tighter dimensional control for clean coiled tubing compared with conventional ASTM A269 tolerance levels.

Inspection & Quality Control

The original tubing can be inspected through processes including:

• Incoming material inspection
• Dimensional inspection
• Air-tightness testing
• Eddy current testing
• Hydrostatic testing
• Ultrasonic testing when required

Inspection requirements for the finished formed component can also be defined according to customer drawings and project specifications.

From Drawing to Finished Tubing Assembly

BAOFENG can support the project through the following process:

Customer drawing → Material selection → Tube dimensions → Seamless tubing production → Forming → Dimensional verification → Inspection → Finished component delivery

This approach allows customers to purchase a more complete tubing component instead of carrying out all forming work after receiving the raw tube.

Typical Applications

Custom formed coiled tubing can support projects involving:

• Aerospace equipment
• Industrial heat transfer systems
• Process equipment
• Compact piping assemblies
• Equipment-integrated tubing
• Special industrial machinery
• Custom engineered fluid transfer systems

The final application is determined by the customer’s equipment design and drawing requirements.

Project-Based Configuration

To evaluate a custom formed tubing requirement, please provide:

• Drawing or 3D geometry
• Material grade
• OD × wall thickness
• Required quantity
• Bend radius
• Dimensional tolerances
• Straight-end dimensions
• Working pressure
• Operating temperature
• Inspection requirements
• Surface and delivery requirements

BAOFENG can then evaluate the tubing production and forming process according to the project requirements.