The 338 Seamless Titanium Tube is a precision-manufactured titanium tubing solution designed for demanding industrial environments requiring high corrosion resistance, mechanical strength, and long-term stability. It is produced according to ASTM and ASME standards and widely used in chemical processing, marine systems, and high-performance engineering applications.
General Information
| Product Name: | 338 Seamless Titanium Tube |
| Material: | Titanium & Titanium Alloy Tube / Pipe |
| Type: | Seamless Titanium Tube |
| Surface Finish: |
Pickled / Polished / Sandblasted |
| Condition: |
M (Annealed condition) |
| Standard: |
ASTM B337 / ASTM B338 / ASME SB861 / ASME SB862 / EN10204 |
| Grades Available: |
Gr1, Gr2, Gr3, Gr4, Gr5, Gr7, Gr9, Gr12, Gr16, Gr23 |
| Marking: |
Customized as per customer requirement |
| Packaging: |
Export-grade plywood wooden case |
Chemical Composition
All grades are produced under controlled composition limits to ensure consistent performance in corrosive environments.
Key Alloy Elements
Gr1 / Gr2 / Gr3 / Gr4: High purity titanium with controlled Fe, O, C, N
Gr5 (Ti-6Al-4V): Aluminum 5.5–6.75%, Vanadium 3.5–4.5%
Gr7: Palladium 0.12–0.25% for enhanced corrosion resistance
Gr9: Aluminum 2.5–3.5%, Vanadium 2.0–3.0%
Gr12: Molybdenum 0.2–0.4%, Nickel 0.6–0.9%
Gr23: Extra-low interstitial Ti-6Al-4V ELI grade
Mechanical Properties
The 338 Seamless Titanium Tube provides a wide mechanical performance range depending on grade selection:
Tensile Strength
240 – 895 MPa
Yield Strength
138 – 828 MPa
Elongation
10% – 24%
Reduction of Area
25% – 30%
Specifications
Outer Diameter: Φ6 – 270 mm
Wall Thickness: 0.5 – 22 mm
Length: up to 15 meters (custom cutting available)
Type: Seamless (no weld seam for higher pressure integrity)
The 338 Seamless Titanium Tube supports both standard industrial dimensions and fully customized engineering requirements for OEM projects.
Manufacturing & Quality Assurance
Each 338 Seamless Titanium Tube is produced through a controlled industrial process:
Vacuum melting of titanium sponge
Forging and billet preparation
Hot extrusion and cold drawing cycles
Intermediate annealing for stress relief
Final sizing and surface treatment
Quality Control Includes:
100% ultrasonic testing (UT)
Hydrostatic pressure testing
Chemical composition verification
Mechanical property testing per batch
Mill Test Certificate (EN 10204 3.1 / 3.2 available)
Applications
The 338 Seamless Titanium Tube is widely used in:
Chemical processing systems (acid, chloride environments)
Heat exchangers and condensers
Marine engineering and seawater systems
Offshore oil & gas equipment
Aerospace hydraulic and structural systems
High-purity pharmaceutical systems
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