Seamless Grade 7 Titanium Tube from China Suppliers - High-Quality Factory Production for Corrosion Resistance
Specifications
Product Name |
Grade 7 Seamless Titanium Tube |
Grades |
Gr7 |
Dimensions & Specifications |
OD (Φ6–Φ120mm) × WTH (0.1–20mm) × L (mm), and more sizes are allowed to be customized. |
Standards |
ASTM B338-2017(24)、ASTM B861-24、ASTM B862-23、GB/T3624-2023、GB/T3625-2007、ΓOCT21945-82、ΓOCT22897-86、ΓOCT24890-81、JIS H4631-2018、DIN17861-1990、DIN17866-1990 |
Example Applications |
Chemical industry, marine engineering, heat exchangers, firewater systems, ballast water systems, oil and gas industry, seawater desalination plants, and power stations. |
Frequently Asked Questions
Q1. What is Grade 7 (Gr7) Titanium Tube?
Grade 7 titanium is a commercially pure titanium alloyed with a small amount of palladium (0.12–0.25%), which significantly enhances its corrosion resistance, especially in reducing acid environments. It is available in seamless tube form for demanding industrial applications.
Q2. What size ranges are available for Grade 7 Seamless Titanium Tubes?
Standard sizes range from OD Φ6mm to Φ120mm, wall thickness from 0.1mm to 20mm, with customizable lengths. Custom dimensions beyond these ranges can also be manufactured upon request.
Q3. Which international standards does Grade 7 Seamless Titanium Tube comply with?
These tubes comply with a wide range of international standards including ASTM B338, ASTM B861, ASTM B862, GB/T3624, GB/T3625, ΓOCT (Russian standards), JIS H4631, and DIN17861/17866, ensuring global quality recognition.
Q4. What are the main applications of Grade 7 Seamless Titanium Tubes?
Gr7 seamless titanium tubes are widely used in chemical processing, marine engineering, heat exchangers, firewater and ballast water systems, oil and gas pipelines, seawater desalination plants, and power generation facilities due to their outstanding corrosion resistance.
Q5. Why choose Grade 7 over other titanium grades for corrosive environments?
The addition of palladium in Gr7 titanium provides superior resistance to crevice corrosion and reducing acids compared to unalloyed titanium grades such as Gr1 or Gr2. This makes it ideal for highly corrosive media including hydrochloric acid, sulfuric acid, and seawater.
Q6. Can Grade 7 Seamless Titanium Tubes be customized for special project requirements?
Yes, custom dimensions including outer diameter, wall thickness, and length can be manufactured to meet specific project requirements. Please provide your technical specifications or drawings, and our team will provide a tailored solution.

