Titanium Alloy Grade 7 pipe
Good welding performance: Grade 7 titanium alloy has good processing, forming and welding properties.
Since Grade 7 titanium alloy adds a small amount of the precious metal Pd to pure titanium, the alloy has excellent corrosion resistance to acidic media.
Titanium Alloy Grade 7 Pipe
XI AN LINHUI IMPORT AND EXPORT Co., LTD. manufactures Titanium Alloy Grade 7 pipe (UNS R52400) with palladium-enhanced microstructure for superior acid resistance. Our product features palladium content of 0.12–0.25%, delivering exceptional corrosion resistance in reducing acids where standard titanium fails. With a tensile strength of min 345 MPa and yield strength of min 275 MPa, this alpha-phase titanium maintains excellent formability and weldability. The addition of precious metal Pd provides immunity to crevice corrosion in hot brine and low pH environments above 80°C, making it ideal for aggressive chemical processing applications.
Key Features & Benefits
Superior Corrosion Immunity
Palladium stabilization prevents crevice corrosion in hot dilute HCl and H₂SO₄ environments. You get reliable performance where unalloyed titanium corrodes rapidly.
Excellent Weldability
Grade 7 welds like Grade 2 using ERTi-7 filler metal. No heat treatment required post-welding, reducing your fabrication costs significantly.
High Erosion Resistance
Withstands high-velocity fluid impingement without wall thinning. Your piping systems maintain integrity under turbulent flow conditions.
Specifications
| Product Name | Titanium Alloy Grade 7 tube |
|---|---|
| Material | Titanium Alloy Grade 7 |
| Standard | ASTM B861/B861M, ASTM B338/B338M |
| Chemical Composition | |
| Element | Percentage |
| Titanium (Ti) | Min. 99.6% |
| Iron (Fe) | Max. 0.30% |
| Oxygen (O) | Max. 0.25% |
| Carbon (C) | Max. 0.08% |
| Nitrogen (N) | - |
| Hydrogen (H) | - |
| Mechanical Properties | |
|---|---|
| Property | Value |
| Tensile Strength | Min. 345 MPa |
| Yield Strength | Min. 275 MPa |
| Elongation | Min. 20% |
| Reduction of Area | Min. 30% |
Manufacturing Process
Raw Material Selection
We source titanium sponge meeting ASTM B299 standards. Each heat undergoes spectroscopic analysis for compositional accuracy.
Vacuum Arc Melting (VAR)
Triple-melted ingots ensure homogeneous palladium distribution. This eliminates segregation defects common in single-melt processes.
Hot Extrusion & Cold Rolling
Seamless pipes undergo hot extrusion followed by controlled cold rolling. Thickness tolerance maintained within ±0.05mm for consistent forming performance.
100% NDT Testing
Every pipe receives ultrasonic and eddy current inspection. We guarantee zero-defect delivery with full traceability documentation.
Quality Inspection
· Dimensional verification per ASTM B861/B862 requirements
· Hydrostatic pressure testing to 1.5× working pressure
· PMI (Positive Material Identification) via XRF analysis
· Tensile and flattening tests per ASTM E8 standards
· Third-party inspection available (SGS, BV, TÜV, DNV)
Applications
Chemical Processing Plants
You need reliable piping for hot organic chlorides and dilute reducing acids. Our Titanium Alloy Grade 7 pipe prevents rapid wall thinning at temperatures up to 150°C.
Desalination Facilities
MSF heater tubes and concentrated brine piping benefit from exceptional crevice corrosion resistance in stagnant hot brine chemistries.
Geothermal Power Generation
Heat recovery systems exposed to H₂S and high chlorides demand NACE MR0175/ISO 15156 compliance. Grade 7 meets these rigorous sulfide stress cracking standards.
Offshore Oil & Gas
Subsea equipment and sour gas handling systems require materials that perform in low pH, high-temperature environments without protective coatings.
Export Markets
We've provided over 200+ tons to 60+ nations including:
North America: USA, Canada, Mexico
Europe: Germany, France, Netherlands, UK
Center East: UAE, Saudi Arabia, Qatar
Asia-Pacific: Japan, South Korea, Singapore, Malaysia
South America: Brazil, Ecuador, Venezuela
Long-term organizations with PETRONAS, LUKOIL, and PTT approve our quality consistency.
Why Choose Us?
Factory-Direct Pricing
No agents markup. You get mill-direct rates with full quality control.
Rapid Turnaround
Stock conveyance in 3-7 days. Standard generation completed inside 15-25 days. Surge orders accommodated.
200+ Tons Stock Inventory
Immediate accessibility for pressing ventures. Our stockroom holds numerous breadths and divider thicknesses.
Engineering Support
In-house metallurgists give fabric determination direction and manufacture counseling. You get specialized arrangements, not fair products.
Full Traceability
Each pipe followed by warm number with total MTC documentation per EN 10204 3.2 requirements.
Packaging & Shipping
Standard Packaging
Person plastic caps on pipe ends
Bundled with steel straps (max 2000 kg/bundle)
Plywood cases for send out (fumigation-free)
Rust-preventive paper wrapping
Shipping Options
Sea cargo for bulk orders. Discuss cargo accessible for pressing necessities. We handle traditions documentation and send out licenses.
FAQ
Q: What's the contrast between Review 7 and Review 2 titanium pipe?
A: Review 7 contains 0.12-0.25% palladium, giving prevalent resistance to hole erosion in diminishing acids. Review 2 needs this upgrade and erodes quickly in hot weaken HCl environments.
Q: Can you give process test certificates?
A: Yes. Each shipment incorporates EN 10204 3.1 certificates. Third-party 3.2 certificates accessible through SGS or BV upon request.
Q: What's your least arrange quantity?
A: Stock orders begin from 100 kg. Custom generation requires least 500 kg per determination to guarantee fetched efficiency.
Q: Do you back custom dimensions?
A: Completely. Our generation extend covers OD 6-600mm with divider thickness 0.5-12mm. Send your drawings for 24-hour specialized survey.
Request a Quote
Ready to solve your corrosion challenges with Titanium Alloy Grade 7 pipe? Contact our engineering team at linhui@lhtitanium.com with your specifications.
