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Introduction

Titanium tubes and pipes are used in industrial systems where corrosion resistance, weight, and mechanical performance are important.

They are found in heat exchangers, chemical processing equipment, marine systems, and selected aerospace and engineering applications.

Titanium tubing is available in different manufacturing forms, including seamless, welded, and coiled products.

The correct choice depends on the application, dimensions, pressure, temperature, manufacturing requirements, and applicable material standard.

1. Titanium Tube vs Titanium Pipe

In general industrial purchasing, tube dimensions are commonly specified by outside diameter and wall thickness.

Pipe is often specified using nominal pipe size and a schedule or wall-thickness designation.

However, terminology can vary by industry and standard.

For a quotation, buyers should provide actual outside diameter, wall thickness, length, and tolerance requirements rather than relying only on the words tube or pipe.

2. Seamless Titanium Tubes

Seamless tubes are manufactured from solid or hollow starting material through suitable hot-working and cold-working processes.

ASTM B338 describes seamless tubing made from hollow billet through cold-reducing or cold-drawing processes.

Potential advantages include:

Seamless construction does not automatically guarantee higher quality or suitability for every application. The required standard and inspection results remain important.

3. Welded Titanium Tubes

Welded tubes are manufactured from flat-rolled titanium material formed into a tubular shape and joined by a suitable welding process.

ASTM B338 includes welded tubing for condenser and heat-exchanger service.

The standard includes requirements for weld quality and testing.

Welded tubing may be suitable for applications where the specification permits it and the required testing and dimensional requirements are met.

4. Coiled Titanium Tubing

Coiled titanium tubing is supplied in continuous or long-length coil form, depending on manufacturing capability and specification.

It can be useful where long tubing lengths or reduced numbers of intermediate connections are required.

Potential applications include selected industrial systems and specialized equipment.

Important purchasing details include:

Coiled tubing should be evaluated for dimensional consistency and handling requirements.

5. Important Titanium Tube Specifications

ASTM B338 covers seamless and welded titanium and titanium alloy tubes for condensers and heat exchangers.

Other standards may apply to titanium pipe or tubing used for different purposes.

For example:

The standard must match the product form and intended service.

6. Common Titanium Tube Grades

Depending on the applicable specification, titanium tubing may be supplied in grades such as:

Not every grade is available in every tube size or standard.

Grade selection should consider corrosion conditions, strength, fabrication, and design requirements.

7. How to Specify Titanium Tubes

A complete inquiry should include:

  1. Grade.
  2. Seamless or welded construction.
  3. Applicable standard.
  4. Outside diameter.
  5. Wall thickness.
  6. Length or coil requirements.
  7. Tolerances.
  8. Surface condition.
  9. Required testing.
  10. Quantity and delivery schedule.

For heat-exchanger tubes, also identify the equipment design and any project-specific inspection requirements.

Frequently Asked Questions

What is the difference between seamless and welded titanium tubes?

Seamless tubes are produced without a longitudinal weld seam. Welded tubes are formed from flat-rolled material and joined by welding.

Does ASTM B338 cover titanium pipes?

ASTM B338 covers titanium and titanium alloy tubes for condensers and heat exchangers. It should not be treated as a general pipe specification.

Can titanium tubing be supplied in coils?

Coiled titanium tubing can be produced for suitable sizes and specifications, subject to manufacturing capability and order requirements.

Is Grade 2 titanium used for heat-exchanger tubes?

Grade 2 is commonly used in selected heat-exchanger applications, subject to the required tube standard and design conditions.

Conclusion

Titanium tubes and pipes are available in different constructions and product specifications.

The best choice depends on the intended service, dimensions, manufacturing route, and inspection requirements.

A complete purchase specification should identify the exact product form and governing standard.

Discuss Your Titanium Tube and Pipe Requirements

Feinuotai supplies titanium tubes and pipes in seamless, welded, and coiled forms according to confirmed project requirements.

Please provide grade, construction type, outside diameter, wall thickness, length, quantity, standard, and inspection requirements.

Internal Link Suggestions

References

  1. ASTM International, ASTM B338.

https://store.astm.org/standards/b338

  1. ASTM International, Titanium Standards.

https://regional.astm.org/industry/metals