ASTM B338 Seamless Grade 1 Titanium Pipe
Nov 24, 2025 ASTM-B338-Titanium.pdf
The GR1 Titanium Tube represents the highest standard in commercially pure titanium tubing. Manufactured to meet ASTM B338 specifications, this Seamless GR1 Titanium Tube delivers exceptional corrosion resistance, unmatched formability, and excellent biocompatibility. As the softest and most ductile member of the CP titanium family, the Grade 1 Titanium Tube is ideal for industries requiring lightweight yet durable tubing in harsh chemical or marine environments.
Key Highlights:
Material: GR1 Commercially Pure Titanium (≥99.5% Ti)
Standard: ASTM B338 Titanium Tube compliance
Form: Seamless structure for superior leak resistance
Corrosion Resistance: Outstanding performance in oxidizing and reducing conditions
Application Range: Chemical processing, marine engineering, medical implants, food equipment
Material Characteristics
The GR1 Titanium Tube is widely recognized for its unique combination of physical, mechanical, and chemical properties, including:
Superior Ductility – Capable of deep drawing, cold forming, and spinning without risk of cracking.
High Corrosion Resistance – Performs exceptionally in seawater, chlorinated media, and most oxidizing acids.
Excellent Weldability – Supports TIG, MIG, plasma arc, and electron beam welding with minimal post-weld stress.
Lightweight Structure – Density of 4.51 g/cm³ ensures high strength-to-weight ratios.
Non-toxic and Biocompatible – Fully safe for food and medical-grade applications.
Chemical Composition (Typical)
| Element | Content (%) |
|---|---|
| Titanium (Ti) | ≥ 99.5 |
| Oxygen (O) | ≤ 0.18 |
| Carbon (C) | ≤ 0.08 |
| Nitrogen (N) | ≤ 0.03 |
| Hydrogen (H) | ≤ 0.015 |
| Iron (Fe) | ≤ 0.20 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (MPa) | ≥ 240 |
| Yield Strength (MPa) | ≥ 170 |
| Elongation (%) | ≥ 24 |
| Modulus of Elasticity | ~105 GPa |
| Hardness (HB) | ~80 |
Products Description
Our GR1 Titanium Tubes are produced using a precise manufacturing sequence:
Raw Material Selection – Only top-grade CP titanium billets are sourced.
Piercing & Extrusion – Producing a hollow form without seams for maximum integrity.
Cold Drawing – Achieving precise OD, wall thickness, and surface finish.
Heat Treatment – Stress relief and annealing to restore ductility.
Surface Finishing – Acid pickling, bright annealing, or mechanical polishing available.
Final Inspection – Dimensional checks, NDT, and certification to ASTM B338 standards.
Quality Control & Testing
Every Seamless GR1 Titanium Tube undergoes rigorous inspection:
Chemical Analysis – Ensures compliance with CP titanium purity requirements.
Mechanical Testing – Tensile, yield, and elongation verified per ASTM standards.
Nondestructive Testing – Ultrasonic or eddy current to detect internal flaws.
Dimensional Inspection – Strict tolerances on OD, wall thickness, and straightness.
Surface Examination – Visual inspection under magnification to ensure defect-free finish.
about us
We are a leading manufacturer and exporter specializing in Titanium and Titanium Alloy products. Our company is dedicated to providing a comprehensive range of high-quality titanium solutions for demanding global industries such as Aerospace, Chemical Processing, Medical, Marine Engineering, Power Generation, and Sports Equipment.
Our core export portfolio encompasses the full spectrum of wrought titanium products, including:
Titanium Tubes & Pipes: From precision Thin-Walled Titanium Tubes for heat exchangers to robust Thick-Walled Titanium Pipes for high-pressure applications.
Titanium Plates & Sheets: Supplied as Titanium Plates for heavy-duty construction and Titanium Sheets / Titanium Foils for precise manufacturing.
Titanium Bars & Rods: We supply Titanium Bars, Titanium Rods, and Titanium Wires in various diameters and finishes.
Titanium Fasteners: A complete range of Titanium Fasteners including bolts, nuts, and studs.
We expertly process all common grades to meet diverse operational requirements, including:
Commercially Pure Titanium: Gr1, Gr2
Titanium Alloys: Gr5 (Ti-6Al-4V), Gr7, Gr9 (Ti-3Al-2.5V), Gr12
Our production and quality assurance strictly adhere to international standards such as ASTM B265, ASTM B337, ASTM B338, ASTM B348, ASME SB-363, and AMS 4902, ensuring superior performance, excellent corrosion resistance, and high strength-to-weight ratio in every product.
Leveraging our advanced manufacturing expertise and stringent quality control, we are your trusted global partner for reliable, high-performance titanium materials.
