Grade 7 Titanium Tube - China Suppliers & Factory for Acid Resistance and Chloride Ion Protection
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
Q
What is Grade 7 (Gr7) Titanium, and how does it differ from other titanium grades?
Grade 7 titanium is an unalloyed titanium with a small addition of palladium (0.12–0.25%), which significantly enhances its corrosion resistance in reducing and mildly oxidizing environments. Compared to Grade 2 (commercially pure titanium), Gr7 offers superior resistance to crevice corrosion and pitting, making it ideal for aggressive chemical and marine applications.
Q
What dimensional range is available for Grade 7 Seamless Titanium Tubes?
The standard dimensional range covers an outer diameter (OD) from Φ6mm to Φ120mm, a wall thickness (WTH) from 0.1mm to 20mm, with customizable lengths. Custom sizes beyond these ranges can also be manufactured upon request to meet specific project requirements.
Q
Which international standards do your Grade 7 Seamless Titanium Tubes comply with?
Our Grade 7 Seamless Titanium Tubes comply with a wide range of international standards, including ASTM B338, ASTM B861, ASTM B862 (USA), GB/T3624, GB/T3625 (China), ΓOCT21945, ΓOCT22897, ΓOCT24890 (Russia), JIS H4631 (Japan), and DIN17861, DIN17866 (Germany), ensuring broad global applicability.
Q
What are the primary applications of Grade 7 Seamless Titanium Tubes?
Grade 7 Seamless Titanium Tubes are widely used in the chemical industry, marine engineering, heat exchangers, firewater systems, ballast water systems, oil and gas industry, seawater desalination plants, and power stations. Their exceptional corrosion resistance makes them a preferred choice wherever exposure to harsh chemicals or seawater is a concern.
Q
Why is Grade 7 Titanium preferred for seawater and marine environments?
The palladium content in Grade 7 titanium greatly improves resistance to crevice corrosion and stress corrosion cracking in chloride-rich environments such as seawater. This makes Gr7 seamless tubes an excellent long-term solution for desalination plants, offshore platforms, ballast water systems, and other marine infrastructure where durability and reliability are critical.
Q
Can Grade 7 Seamless Titanium Tubes be customized for specific project needs?
Yes. In addition to the standard size range, custom dimensions including specific OD, wall thickness, and length can be produced to meet unique engineering requirements. Customers are encouraged to provide their technical drawings or specifications so that the most suitable product configuration can be arranged.