GNEE hot-selling products
ASTM B861 Titanium Alloy Seamless Pipe
Ti-6A1-4V Medical Titanium Alloy Rod
GR7 GR9 Precision Titanium Alloy
Titanium Grade 1 Strip Coil
In reducing inorganic acids and certain organic acid environments, titanium alloy plates exhibit relatively fast corrosion rates due to the difficulty in maintaining a passive oxide film. To effectively reduce corrosion, the addition of corrosion inhibitors has become an effective measure. There are various types of corrosion inhibitors, including noble metal ions, heavy metal ions, oxidizing inorganic compounds, oxidizing organic compounds, and complexing organic corrosion inhibitors. However, noble metal ions are rarely used as corrosion inhibitors for reducing inorganic acids due to their high cost. Heavy metal ions, such as copper and iron ions, demonstrate significant corrosion inhibition effects after reaching a critical concentration. Oxidizing inorganic compounds, such as nitric acid, chlorine gas, potassium chlorate, potassium dichromate, potassium permanganate, and hydrogen peroxide, also exhibit certain corrosion inhibition effects. Oxidizing organic compounds, such as nitro or nitroso compounds and nitrogen compounds, can similarly be used for corrosion inhibition. In contrast, complexing organic corrosion inhibitors differ from oxidizing organic compounds in that they can provide corrosion inhibition at any concentration, though the degree of effectiveness may vary.
Surface treatment can significantly improve the corrosion resistance of titanium alloy plates. Common surface treatment methods include cathodic oxidation, thermal oxidation, nitriding, and coating techniques. Data show that coating techniques are the most effective in enhancing the corrosion resistance of titanium alloy plates, even outperforming the corrosion resistance of Ti-0.15Pd.
Anodic oxidation of titanium alloy plates is typically performed in a 5%-10% (NH₄)₂SO₄ solution with an applied DC voltage of 25V. This treatment effectively removes surface iron contamination, prolongs the passivation time of the titanium alloy plate, and prevents hydrogen absorption caused by iron contamination. Therefore, international standards require that all titanium equipment must undergo anodic oxidation treatment. To enhance the effectiveness of anodic oxidation, sodium platinate is sometimes used as a substitute for ammonium sulfate in the anodic oxidation solution to achieve better corrosion resistance.
During thermal oxidation in air, titanium alloy plates can form a rutile-type thermal oxide film that is thicker and more crystalline than the anodic oxide film, offering superior corrosion resistance. Thermal oxidation treatment is typically conducted at temperatures of 600-700°C for 10-30 minutes. Excessively high temperatures or prolonged durations can adversely affect the treatment results.
Among the coatings for titanium alloy plates, palladium-containing coatings are particularly effective. Palladium-containing coatings are typically palladium oxide coatings or palladium-alloyed coatings. The typical preparation method for a PdO-TiO₂ palladium oxide coating involves applying PdCl₄ and TiCl₃ solutions to the surface of the titanium alloy plate, followed by heating at 500-600°C for 10-50 minutes. This process can be repeated several times to achieve a coating thickness of 1 g/m² or more. For palladium-alloyed coatings, a thin layer is first formed via electroplating or vacuum deposition, followed by surface alloying techniques such as laser surface remelting or ion implantation to improve adhesion and corrosion resistance. These treatment techniques are superior to palladium oxide coatings.
Titanium products provided by GNEE
CNC machined parts
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Machining Equipment |
10 CNC Tapping Center, 260CNC Lathes,200 auto lathe,2 MAZAK five axis CNC, etc. We increase about 10 lathes every month |
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Processing |
Turning, Milling, Drilling, Tapping, Knurling,Wire EDM ,Grinding,Engraving,Knurling,etc. |
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Tolerance |
+/-0.005mm |
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Material Workable |
Copper,Steel, Aluminum, Brass, Stainless Steel, Titanium, Plastics (PEEK,ABS, Teflon,Acrylic , Delrin, PP, PMMA, PC, POM, |
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Surface Treatment |
Nickel Plating, Anodizing, Chorme Plating, Brushing, Polishing, Blacken, Powder coating, Sandblasting, de-buring, |
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Drawing Format |
JPEG, PDF, DWG, DXF, IGS, STEP, CAD |
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MOQ |
No MOQ Required, 1 PC is fine for us. |
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Lead Time |
1-30 days accordingly to your orders. |
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Quality System |
100% inspection before shipment, (CMM, Projector, Gauge and other inspection tools) |
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Size |
Customization |
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Standard |
OEM/ODM |
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FOB Port |
Xiamen,China |
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Pay ment |
50% T/T in advance,50 % before shipment . Accept T/T L/C ,Escrow,paypal,Western Union |
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Packing |
Carton box, wooden case, pallet, etc. |
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Shipping |
By sea,by air,by DHL ,UPS, FedEx, TNT or EMS,ect. |
Titanium tube
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Name |
Titanium Tube & Pipe |
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Material |
Pure Titanium/ Titanium Alloy |
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Standard |
GB/T 3624,GB/T 3625,GB/T 26057
ASTM B337,ASTM B338,ASTM B861,ASTM B862 JIS H 4630 |
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Common Grade |
National standard grades: TA1, TA2, TC4, TA9, TA18, TA10 |
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Length: 50-6000mm or according to customer requirements |
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Outer diameter: 3-300mm or according to customer requirements |
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Wall thickness: 0.2-5.5mm or according to customer requirements |
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Section shape |
Round / Square/Oval/Spiral/Bar |
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Surface |
Bright annealing, Pickling,Polishing |
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Titanium rod
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Material
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Pure titanium and Titanium alloy
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Titanium Grade
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GR1/GR2/GR3/Gr4/GR5/GR7/GR9/GR12/Gr5Eli/Gr23
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Standard
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ASTM B348/ASME SB348, ASTMF67, ASTM F136, ISO-5832-2(3),AMS 4928 etc
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Shape
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Titanium round rod/bar, Titanium square rod/bar,Titanium flat rod/bar
Titanium rectangle rod/bar, Titanium hex rod/bar |
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Diameter
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1-300mm,customizable
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Length
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50mm-6000mm,customizable
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Tolerance
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h6~h13 H10~H13
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Surface
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Bright/Polished/ Machined
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Main Technique
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Hot Forged; Hot Rolled; Cold drawn; Straighten etc
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Heat Treatment
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Usually are Annealled,but Solid Solution & Aging can be also OK
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Material Milling Certificate
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According to. EN 10204.3.1
Including Chemical composition and Mechanical property |
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Application
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Metallurgy, Electronics, Medical, Chemical, Petroleum, Pharmaceutical, aerospace, etc.
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Titanium sheet/plate/strip
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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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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. |
Titanium wire
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Wire Shape |
Round Wire |
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Diameter Range(mm) |
0.1-2.5 |
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Standards |
ASTM F2063,GB 24627 |
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Diameter Tolerance |
±0.001mm |
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Surface Finish |
Black Oxidized, Lightly Oxidized, Bright, Ultra Bright, Polished, Clean |
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Delivery Condition |
Straightened superelastic , Cold-worked |
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Supply Form |
Spool wound, Straight |
About Us
GNEE is a trusted exporter of high-purity titanium raw materials. We utilize advanced forging and precision CNC machining to ensure superior product quality. Every shipment is guaranteed through a rigorous pre-shipment inspection process, verifying chemical composition, mechanical properties, and dimensional accuracy to meet global standards.
Email:sale@gneemetal.com
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