Ti Grade 9 (Ti 3Al-2.5V) Heat exchanger Seamless tube
Oct 20, 2025
GNEE can provide the form
Products Description
Ti Grade 9 (Ti 3Al-2.5V) is a titanium grade characterized by excellent corrosion resistance to seawater and higher mechanical properties than stainless steels. The Ti-3-2.5 alloy is characterized by:
Excellent resistance to general corrosion in seawater applications
High mechanical strength, superior strength to weight ratio
Resistant to stress corrosion cracking in chloride and sour gas environments
Excellent resistance to pitting, crevice, and erosion corrosion
Good formability and weldability
Very low thermal expansion
Chemical composition
| Al | V | N | H | O | Fe | C |
|---|---|---|---|---|---|---|
| ≤ 3.5 - 2.5 | ≤ 3.0 - 2.0 | ≤0.02 | ≤0.013 | ≤0.12 | 0.25 | 0.10 |
Applications
Ti-3-2.5 as a cold-worked and heat treated titanium alloy provides excellent service in aggressive chloride-containing environments. Typical applications are:
Oil and gas industry
Chloride environments such as seawater handling and process systems and hydraulic and process fluid tubes in umbilicals.
Seawater cooling
Tubing for heat exchangers and coolers on oil platforms, in refineries, chemical industries, process industries and other industries using seawater or chlorinated seawater as coolant.
Refineries and petrochemical plants
Tubes and pipes where the process environment contains a high amount of chlorides or sulfides.
Geothermal wells
Heat exchangers in geothermal exploitation units, systems exposed to geothermal or high-salinity brines, tubing and casing for production.
Pulp and paper industry
Tubing for chloride containing bleaching environments.
Desalination plants
Tube and pipe for seawater transport, heat exchanger tubing, and pressure vessels for reverse osmosis units.
Mechanical components requiring high strength
Propeller shafts and other products subjected to high mechanical load in seawater and other chloride-containing environments.
Heat exchanger tube- Seamless, standard sizes
| Tube size | OD | Wall | Weight | ||
|---|---|---|---|---|---|
| in. | in. | mm | lbs/ft | kg/m | |
| 3/4" x 16 BWG | 19.05 | 0.065 | 1.65 | 0.272 | 0.405 |
| 3/4" x 14 BWG | 19.05 | 0.083 | 2.11 | 0.338 | 0.503 |
| 1" x 16 BWG | 25.4 | 0.065 | 1.65 | 0.371 | 0.522 |
| 1" x 14 BWG | 25.4 | 0.083 | 2.11 | 0.465 | 0.692 |
| 1 1/4" x 14 BWG | 31.8 | 0.083 | 2.11 | 0.592 | 0.880 |
| 1 1/2" x 14 BWG | 38.1 | 0.083 | 2.11 | 0.718 | 1.609 |
Seamless Pipe- Standard sizes
| Nominal | OD | Wall | OD | Wall |
|---|---|---|---|---|
| Bore | in. | in. | mm | mm |
| 1/4" Sch. 10 | 0.540 | 0.065 | 13.72 | 1.65 |
| 1/4" Sch. 40 | 0.540 | 0.088 | 13.72 | 2.24 |
| 1/4" Sch. 80 | 0.540 | 0.119 | 13.72 | 3.02 |
| 3/8" Sch. 10 | 0.675 | 0.065 | 17.15 | 1.65 |
| 3/8" Sch. 40 | 0.675 | 0.091 | 17.15 | 2.31 |
| 3/8" Sch. 80 | 0.675 | 0.126 | 17.15 | 3.20 |
| 1/2" Sch. 5 | 0.840 | 0.065 | 21.34 | 1.65 |
| 1/2" Sch. 10 | 0.840 | 0.083 | 21.34 | 2.11 |
| 1/2" Sch. 40 | 0.840 | 0.109 | 21.34 | 2.77 |
| 1/2" Sch. 80 | 0.840 | 0.167 | 21.34 | 3.73 |
| 3/4" Sch. 5 | 1.050 | 0.065 | 26.67 | 1.65 |
| 3/4" Sch. 10 | 1.050 | 0.083 | 26.67 | 2.11 |
| 3/4" Sch. 40 | 1.050 | 0.113 | 26.67 | 2.87 |
| 3/4" Sch. 80 | 1.050 | 0.154 | 26.67 | 3.91 |
| 1" Sch. 5 | 1.315 | 0.065 | 33.40 | 1.65 |
| 1" Sch. 10 | 1.315 | 0.109 | 33.40 | 2.77 |
| 1" Sch. 40 | 1.315 | 0.133 | 33.40 | 3.38 |
| 1" Sch. 80 | 1.315 | 0.179 | 33.40 | 4.55 |
| 1 1/4" Sch. 5 | 1.660 | 0.065 | 42.16 | 1.65 |
| 1 1/4" Sch. 10 | 1.660 | 0.109 | 42.16 | 2.77 |
| 1 1/4" Sch. 40 | 1.660 | 0.140 | 42.16 | 3.56 |
| 1 1/4" Sch. 80 | 1.660 | 0.191 | 42.16 | 4.85 |
| 1 1/2" Sch. 5 | 1.900 | 0.065 | 48.26 | 1.65 |
| 1 1/2" Sch. 10 | 1.900 | 0.109 | 48.26 | 2.77 |
| 1 1/2" Sch. 40 | 1.900 | 0.145 | 48.26 | 3.68 |
| 1 1/2" Sch. 80 | 1.900 | 0.200 | 48.26 | 5.08 |
| 2" Sch. 5 | 2.375 | 0.065 | 60.33 | 1.65 |
| 2" Sch. 10 | 2.375 | 0.109 | 60.33 | 2.77 |
| 2" Sch. 40 | 2.375 | 0.154 | 60.33 | 3.91 |
| 2" Sch. 80 | 2.375 | 0.218 | 60.33 | 5.54 |
Products provided by GNEE
|
Name |
Titanium & Titanium Alloy Tube /Pipe |
|
Material |
Gr1,Gr2,Gr3,Gr4,Gr5(Ti-6Al-4V),Gr7,Gr9,Gr11,Gr12,Gr23(Ti-6Al-4V Eli) |
|
Standard |
ASTM B337 ASTM B338 ASTM B861 ASTM B862 |
|
Type |
Seamless,Welded |
|
OD |
3-114mm or as customized |
|
Wall Thickness |
0.2-50mm or as customized |
|
Length |
Max 6m |
|
End |
Plain End, Beveled End, Threaded |
|
Certificate |
EN 10204/3.1B,Raw Materials Certificate,100% Radiography Test Report,Third Party Inspection Report, etc |
|
Application |
Off-Shore Oil Drilling Companies Power Generation Petrochemicals Gas Processing Specialty Chemicals Pharmaceuticals Pharmaceutical Equipment Chemical Equipment Sea Water Equipment Heat Exchangers Condensers Pulp and Paper Industry |
|
Standard |
ASTM F67 ASTM F136 etc. |
|
Grade |
Gr1 Gr2 Gr3 Gr4 Gr5 Gr7 Gr9 Gr12 Gr23 |
|
Process method |
Hot Rolled,Forged |
|
Specification |
Diameter:5-300mm(as required) |
|
Dlivery time |
7-25 days |
|
Package |
Wooden case |
|
Surface |
acid surface or polishing, sand blasted surface |
|
Shape |
Round, flat, square, hexagonal |
|
Used |
Widely use for aerospace, industry and medical |
|
Application |
1. Chemical industry
2. Petrochemical industry 3. Machining field,Automobile field,etc 4. Desalination of sea water 5. Textile printing and dyeing |
|
Production Name |
Titanium plate/Titanium sheet |
|||
|
Grade |
Gr1, Gr2, Gr3,Gr4,Gr5, Gr7, Gr6,Gr9, Gr11, Gr12 ,Gr16, Gr17,Gr25 |
|||
|
Size |
All sizes can be customized |
|||
|
Application |
Metallurgy, electronics, machinery, medical treatment, chemical industry, petroleum, medical treatment, aerospace |
|||
|
Feature |
High corrosion resistance, low density, good thermal stability |
|||
|
Technology |
Hot Forged, Hot Rolled, Cold Rolled, Annealing, Pickling |
|||
|
Surface |
Bright, Polished, Pickling, Acid cleaning, Sandblasting |
|||
|
Packing |
Export Standard Woodcase |
|||
|
Delivery time |
10-25days according to the quantity and process of the product |
|||
|
Quality and test |
Hardness test, Bending test, Hydrostatic etc. |
|||
|
Material
|
Pure titanium and Titanium alloy
|
|
|
GR1/GR2/GR3/Gr4/GR5/GR7/GR9/GR12/Gr5Eli
|
|
Standard
|
ASTM B863/ASME SB863, ASTMF67, ASTM F136, ISO-5832-2(3) etc
|
|
Shape
|
Titanium Coil Wire/Titanium Spool Wire/Titanium Straight Wire
|
|
Wire Gauge
|
Dia(0.1--2) *L
|
|
Process
|
Bar billets-hot rolling-drawing-annealing-strength-pickling
|
|
Surface
|
Polishing, picking, acid washed, black oxide
|
|
Main Technique
|
Hot Forged; Hot Rolled; Cold drawn; Straighten etc
|
|
Material Milling Certificate
|
According to. EN 10204.3.1
Including Chemical composition and Mechanical property |
|
Application
|
Welding, Industry
|
|
Processing |
CNC lather,CNC tuming,CNc Milling, SLA, 3D printing |
||||
|
Finish |
Polish, Chrome plating, sand blasting, painting, powder coating,electrophoresis, or else. as your choice |
||||
|
Size & Design |
Per customized specifications in your drawings |
||||
|
Tolerance |
0.01 to 0.05mm |
||||
|
Drawing |
Solid Works,Pro/Engineer, AutoCAD(DXF,DWG), PDF,TI |
||||
|
Application |
Car,Bicycle, Scooter, Machinary |
||||
|
Electronics, Furniture, Construction |
|||||
|
Sport equipment,other industrial |
|||||
|
QC System |
1.Materail: Strickly control of material selection , meet clients request |
||||
|
2.In-prosess inspection:detect product after each process finished |
|||||
|
3.Final inspection :stricly quality test before items are packed |
|||||
|
Lead Time |
1-2 weeks for samples,3-4 weeks for mass production |
||||
