Grade 7 Titanium Tube Suppliers in China - High-Quality Factory Products 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
What is Grade 7 Seamless Titanium Tube?
Grade 7 Seamless Titanium Tube (Gr7) is a high-performance titanium alloy tube containing a small amount of palladium (0.12–0.25%), which significantly enhances its corrosion resistance, especially in reducing acid environments. It is manufactured without seams for superior structural integrity.
What sizes are available for Grade 7 Seamless Titanium Tube?
Standard dimensions include an outer diameter (OD) ranging from Φ6mm to Φ120mm, wall thickness (WTH) from 0.1mm to 20mm, with customizable lengths. Custom sizes beyond these ranges can also be produced upon request to meet specific project requirements.
Which international standards does Grade 7 Seamless Titanium Tube comply with?
Grade 7 Seamless Titanium Tubes are manufactured in compliance with a wide range of international standards, including ASTM B338, ASTM B861, ASTM B862, GB/T3624, GB/T3625, ΓOCT (GOST) series, JIS H4631, and DIN 17861/17866, ensuring global acceptance and quality assurance.
What are the main applications of Grade 7 Seamless Titanium Tube?
Due to its outstanding corrosion resistance and mechanical strength, Grade 7 Seamless Titanium Tube is widely used in the chemical industry, marine engineering, heat exchangers, firewater and ballast water systems, oil and gas pipelines, seawater desalination plants, and power generation stations.
What makes Grade 7 Titanium better than Grade 2 Titanium for corrosive environments?
Grade 7 Titanium contains palladium as an alloying element, which dramatically improves its resistance to crevice corrosion and reducing acids compared to commercially pure Grade 2 Titanium. This makes Gr7 the preferred choice for aggressive chemical and marine environments where standard titanium grades may underperform.
Can Grade 7 Seamless Titanium Tubes be customized for special projects?
Yes. In addition to the standard dimension range, Grade 7 Seamless Titanium Tubes can be customized in terms of outer diameter, wall thickness, length, and surface finish to meet the specific technical requirements of your project. Please contact our team with your specifications for a tailored solution.

