China Grade 7 Seamless Titanium Tube Suppliers - Factory Direct Quality for Corrosive Environments
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 Titanium (Gr7), and how does it differ from other titanium grades?
Grade 7 Titanium is a commercially pure titanium alloyed with 0.12–0.25% palladium, which significantly enhances its corrosion resistance — especially in reducing acid environments. Compared to Grade 2, Gr7 offers superior performance in highly corrosive conditions such as hydrochloric and sulfuric acid environments.
What dimensional range is available for Grade 7 Seamless Titanium Tubes?
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 are also available upon request.
Which international standards do these Grade 7 Titanium Tubes comply with?
These tubes are manufactured in accordance with multiple international standards, including ASTM B338, ASTM B861, ASTM B862, GB/T3624, GB/T3625, ΓOCT (Russian standards), JIS H4631, and DIN17861/17866, ensuring global compliance and quality assurance.
What industries commonly use Grade 7 Seamless Titanium Tubes?
Grade 7 Titanium Tubes are widely used in the chemical industry, marine engineering, heat exchangers, firewater systems, ballast water systems, oil and gas processing, seawater desalination plants, and power generation stations — anywhere that demands exceptional corrosion resistance and durability.
Why is Grade 7 Titanium preferred for seawater and marine applications?
The addition of palladium in Gr7 titanium provides outstanding resistance to crevice corrosion and pitting in chloride-rich environments such as seawater. This makes it an ideal choice for marine engineering, desalination plants, and offshore structures where long-term reliability is critical.
Can Grade 7 Seamless Titanium Tubes be customized for specific project requirements?
Yes. Beyond the standard dimensional range, custom OD, wall thickness, and length specifications can be accommodated. Custom certifications, surface finishes, and compliance with additional standards can also be arranged to meet specific project or industry requirements.