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Product Introduction
ASTM B861 is the core standard for titanium and titanium alloy seamless tubes. The latest version is ASTM B861-24, covering 34 grades, suitable for corrosion-resistant and high-temperature working conditions, Titanium Seamless Tube ASTM B861 corresponding to ASME SB861, and is commonly used in the fields of chemical engineering, energy, aviation, etc
Product type: Titanium seamless Pipe (Pipe, distinct from ASTM B338's Tube), without welds, offering higher pressure resistance and reliability.
Covered grades: 34 types such as Grade 1/2/2H/3/5/7/9/23, including pure titanium and alloys such as Ti-6Al-4V (Grade 5) and Ti-6Al-4V ELI (Grade 23).
Typical applications: Chemical anti-corrosion pipelines, heat exchanger tubes, high-temperature pressure-bearing pipelines, Marine engineering, aviation hydraulic pipelines, etc.
Core Differences Between ASTM B861 and ASTM B338
|
Item |
ASTM B861 |
ASTM B338 |
|
Product Form |
Seamless titanium and titanium alloy pipe |
Seamless/welded titanium and titanium alloy tube |
|
Application Scenarios |
High-pressure, high-temperature, primary fluid transmission pipelines |
Heat exchangers, condensers, instrumentation tubes, precision fluid lines |
|
Dimensional Accuracy |
Focus on pressure-bearing capacity, relatively loose dimensional tolerances |
Focus on thin-wall structures and high dimensional precision |
|
Corresponding Standard |
ASME SB861 |
ASME SB338 |
|
Key Quality Focus |
Pressure resistance, structural integrity, long-distance transmission reliability |
Surface finish, wall thickness uniformity, heat exchange efficiency |
Common Grades And Applications
- Grade 2: Chemical anti-corrosion, seawater desalination, general industrial pipelines;
- Grade 5: Aviation Hydraulic pipes, high-pressure vessel pipelines, Marine engineering;
- Grade 23: Medical implants, high-toughness precision tubing;
- Grade 7: Pipes for transporting strong corrosive media (such as chlor-alkali).
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