Key Specifications
Titanium seamless tube typically refers to a hollow cylindrical tube made from titanium that is produced without any welded seams. It is formed through a series of mechanical processes that pierce and elongate the metal to create a continuous, uniform cross-section.This type of tube is highly valued for its strength, corrosion resistance, and light weight.
Material Grade
- Grade 1: Commercially pure titanium, excellent corrosion resistance.
- Grade 2: Commercially pure titanium with higher strength than Grade 1, good all-around corrosion resistance.
- Grade 5 (Ti-6Al-4V): This alloy containing 90% titanium, 6% aluminum, and 4% vanadium, offering high strength and excellent fatigue resistance.
Other grades like Grade 9, Grade 23 may also be specified, depending on the intended application.
Dimensions
Outer Diameter (OD)
The external measurement of the tube. Typical sizes can range from 0.5 mm to 1000 mm (or more) depending on the application.
Wall Thickness (WT)
The thickness of the tube wall, often ranging from 0.2 mm to 100 mm, based on the application's requirements for strength and pressure resistance.
Length
Titanium tubes are typically supplied in standard lengths such as 6 meters, 12 meters, or customized lengths.
Mechanical Properties
|
Mechanical Properties |
Data |
|
Tensile Strength |
Between 400–900 MPa |
|
Yield Strength |
Approximately 250-800 MPa |
|
Elongation |
10–20% |
Surface Finish
Polished
A smooth, shiny finish, ideal for applications requiring aesthetic appearance or minimizing friction.
Bright Annealed
Typically a smooth, reflective surface produced by annealing the tube in a controlled atmosphere.
Mill Finish
A rougher surface from the extrusion process, common in industrial uses.
Tensile Testing Standards
The tube may adhere to international standards such as ASTM B861 (for titanium and titanium alloy seamless tubes) or ASTM B338 (for titanium alloy tubes used in heat exchangers and condensers).
Applications
- Aerospace: Aircraft and spacecraft structural components.
- Marine: Corrosion-resistant components for saltwater environments.
- Chemical Industry: Heat exchangers, condensers, and piping for corrosive environments.
- Medical: Implants and prosthetic devices due to biocompatibility.
Tolerance
The manufacturing process for seamless tubes ensures that the OD, wall thickness, and length are produced within specified tolerances, often measured in millimeters or microns
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