ASTM B338 Grade 7 Ti-0.15Pd UNS R52400 forged Ti Alloy Pipe
Oct 17, 2025 ASTM-B338-Titanium.pdf
GNEE can provide the form
Gr7 Titanium Rod
Gr7 Titanium Pipe
Gr7 Titanium Sheet
GR7 Thin Titanium Wire
Titanium Foil Roll Gr7
Products Description
Titanium tube Grade：Grade 7 – UNS R52400
Titanium tube types：Seamless Ti tube, Ti welded tube, forged Ti tube
Titanium tube density The density of grade 7 titanium is approximately 4.51 g/cm3
Standards：ASTM B338,ASTM B861,ASTM B862
Softest Ti,High ductility, Very corrosion resistant, good cold formability
Provide High Quality Grade 7 Titanium Pipe to Customers Around The World
Grade 7 titanium pipe is a palladium-enhanced commercially pure titanium alloy (Ti-0.12Pd), engineered for ultimate corrosion resistance in the most aggressive environments. It combines the inherent formability and weldability of pure titanium with exceptional durability against reducing acids and chlorides. Its density (4.51 g/cm³) is approximately 60% that of steel, while offering unparalleled defense against chemical attack, pitting, and crevice corrosion. The alloy excels in harsh conditions-including hot reducing acids, chloride-rich solutions, and sour gas environments-maintaining integrity where other materials fail.
Palladium's electrochemical role: Pd acts as a cathodic catalyst, promoting rapid repassivation of the titanium oxide layer when damaged. This self-healing mechanism prevents localized corrosion (pitting/crevice) in reducing acids like HCl, H₂SO₄, and wet chlorine environments where conventional titanium fails.
Synergy with titanium matrix: While retaining pure titanium's inherent ductility and weldability, the Pd dopant creates a barrier against hydrogen embrittlement and stress corrosion cracking (SCC), enabling reliable performance in chemically aggressive media
Where is Grade 7 titanium pipe used?
In chemical processing plants, it's the material of choice for reactor vessels, heat exchangers, and piping systems handling sulfuric acid, hydrochloric acid, and chlorinated organics due to its inertness. Marine and offshore industries rely on it for critical seawater systems, desalination equipment, and subsea components, leveraging its unmatched resistance to saltwater corrosion and biofouling. Oil and gas operations employ it in downhole tubing, Christmas tree components, and sour gas pipelines where high-pressure H₂S and CO₂ environments cause rapid degradation of standard alloys. Pharmaceutical and biotech facilities use it for ultra-pure water systems and chemical delivery lines, ensuring zero contamination. Additionally, nuclear waste treatment and pollution control systems utilize it for scrubbers and condensers exposed to corrosive flue gases and acidic effluents, combining longevity with absolute reliability.
Composition Range
| Element | Symbol | Composition Range (wt.%) |
|---|---|---|
| Titanium | Ti | Balance (>99%) |
| Palladium | Pd | 0.12–0.25% |
| Iron | Fe | ≤0.30% |
| Oxygen | O | ≤0.25% |
| Carbon | C | ≤0.08% |
| Nitrogen | N | ≤0.03% |
| Hydrogen | H | ≤0.015% |
| Other Elements | Each | ≤0.40% (single element) |
Products provided by GNEE
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Production Name |
Titanium Pipe/Tube |
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Grade |
Gr1, Gr2, Gr3,Gr4,Gr5, Gr7, Gr6,Gr9, Gr11, Gr12 ,Gr16, Gr17,Gr25 |
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Size |
All sizes can be customized |
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Application |
Metallurgy, electronics, machinery, medical treatment, chemical industry, petroleum, medical treatment, aerospace |
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Feature |
High corrosion resistance, low density, good thermal stability |
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Technology |
Hot Forged, Hot Rolled, Cold Rolled, Annealing, Pickling |
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Surface |
Bright, Polished, Pickling, Acid cleaning, Sandblasting |
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Packing |
Export Standard Woodcase |
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Delivery time |
10-25days according to the quantity and process of the product |
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Quality and test |
Hardness test, Bending test, Hydrostatic etc. |
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Product name |
Pure Titanium bar/Pure Titanium rod/Titanium alloy bar/Tianium alloy rod |
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Standard |
GB/T 2965-2007 GB/T 13810-2007, ASTM B348,ASTM F67,ASTM F136, AMS4928,MIL4911 |
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Titanium type |
Commercially Pure(CP) / Titanium alloy |
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Grade |
TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 TA9 TA10 TA11 TA12 TA13 TA14 |
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Diameter |
3-350mm |
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Length |
Max6000mm |
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Technique |
Forging, machining |
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Surface |
Acid surface or polishing, sand blasted surface |
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Shape |
Round, flat, square, hexagonal |
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Application |
Metallurgy, electronics, medical, chemical, petroleum, pharmaceutical, aerospace, etc. |
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Grade |
GR1,GR2,GR3,GR5,GR6,GR7,GR9,GR11,GR12, etc. |
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Standard |
ASTM B265,ASTM F136,ASTM F67,AMS4928 |
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Size |
0.5-5.0mm x 1000mm x 2000-3500mm (Thickness x Width x Length) |
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Application |
Metallurgy, electronics, machinery, medical treatment, chemical industry, petroleum, medical treatment, aerospace |
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Supply status |
M (Y/ R/ ST) |
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Feature |
High corrosion resistance, low density, good thermal stability |
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Technics |
Hot Forged, Hot Rolled, Cold Rolled, Annealing, Pickling |
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Surface |
Bright, Polished, Pickling, Acid cleaning, Sandblasting |
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Packing |
Export Standard Woodcase |
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MOQ |
100kg |
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Payment terms |
T/T, L/C, D/A, D/P, Escrow, Western Union, PayPal |
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Certificate |
ISO 9001:2008; The third test report; TÜV Rheinland; |
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Delivery time |
7-15days according to the quantity and process of the product |
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Quality and test |
Hardness test, Bending test, Hydrostatic etc. |
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Product Name
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Polished 1mm 1.5mm 2mm 3mm Nitinol Shape Memory Straight Wire Nickel Titanium Wire for Medical
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Material Type
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NiTiCu NiTi, Fe NiTi
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Room Temperature(0C - 15C)
Low temperature (Below 0C) High temperature(40C - 120C) |
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Feature
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Superelastic or Shape memory
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Standard
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ASTM F2603-18/12
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Surface
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Natural Oxide, Pickled/Etched, Centerless Ground and Mechanically-cleaned
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Condition
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As Cold-Worked, Straight Strain Annealed and Shape Set Annealed.
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Certificate
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Transformed Temperatures, Tensile Properties, Chemical Composition and Customer Specific Requirements
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Surface
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Polishing, picking, acid washed, black oxide
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Application
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1. Medical field : with very good biocompatibility with human body, medical nitinol wire can be used in medical field.
2. Eye glasses manufacturer : Low density, high toughness, high stability, biocompability with human boday, nickel titanium alloy wire is becoming more popular between eye glasses manufacturers. 3. Fishing wire: nickel titanium alloy wire now is widely used as fishign wire because of its high strenght and very good memorability and superelastic. |
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Processing |
CNC Turning, CNC Milling, Laser Cutting, Bending, Spinning, Wire Cutting, Stamping, Electric Discharge Machining (EDM), Injection Molding |
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Materials |
Aluminum: 2000 series, 6000 series, 7075, 5052, etc. |
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Stainless steel: SUS303, SUS304, SS316, SS316L, 17-4PH, etc. |
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Steel: 1214L/1215/1045/4140/SCM440/40CrMo, etc. |
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Brass: 260, C360, H59, H60, H62, H63, H65, H68, H70, Bronze, Copper |
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Titanium: Grade F1-F5 |
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Plastic: Acetal/POM/PA/Nylon/PC/PMMA/PVC/PU/Acrylic/ABS/PTFE/PEEK etc. |
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Surface Treatment |
Anodized, Bead Blasted, Silk Screen, PVD Plating, Zinc/Nickel/Chrome/Titanium Plating, Brushing, Painting, Powder Coated, Passivation, Electrophoresis, Electro Polishing, Knurl, Laser/Etch/Engrave etc. |
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Tolerance |
±0.002 ~ ±0.005mm |
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Surface Roughness |
Min Ra 0.1~3.2 |
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