ASTM B338 Gr7 UNS R52400 heat exchangers Titanium Welded 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
Grade 7 titanium tubing is made from a titanium-palladium alloy and is similar to Grade 2 titanium tubing except for its palladium content. The addition of palladium makes Grade 7 the most corrosion-resistant titanium tubing on the market. GNEE is a leading supplier of Grade 7 titanium tubing. Grade 2 titanium tubing offers similar properties but is less corrosion-resistant than Grade 7. This is because Grade 2 material is commercially pure, with a tensile strength of 430 MPa and a yield strength of 330 MPa, while Grade 7 is a palladium alloy with a tensile strength of 344 MPa and a minimum yield strength of 275 MPa.
The Titanium Grade 2 Seamless Pipe is strong and it could be used as replacement for grade 7 pipes but the grade 7 seamless pipe is more corrosion resistant. The melting points of grade 2 and grade 7 are similar at 1665 degrees Celsius so that both of them could be used under high temperatures. The Titanium Alloy UNS R52400 Welded Pipe is used in systems like heat exchangers, power generators, chemical production plants, pulp and paper industries, bleaching applications and marine applications. the Titanium Gr 7 ERW Pipes are also used along with the seamless pipes. The Titanium Alloy Gr.7 Round Pipes are the most used shapes of the titanium grade 7 pipes.
Standard Size and Specification of Titanium Grade 7 Seamless Pipe
| ASTM Specification | ASTM B337 ASME SB B337 R52400 |
|---|---|
| Standard | ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB |
| ASTM B337 Grade 7 Titanium Seamless Pipe Size | 4 to 219mm W. T.: 0.5 to 20mm |
| UNS R52400 Welded Pipe Size | 5.0 - 1219.2 mm |
| Titanium WERKSTOFF NR. 3.7235 EFW Pipe size | 5.0 - 1219.2 mm |
| Swg & Bwg | 12 Swg., 10 Swg., 16 Swg., 14 Swg., 20 Swg., 18 Swg., |
| Cp Grade 7 Titanium Pipe Schedule | XS, SCH30, SCH40, XXS, SCH80, SCH120, SCH60, SCH140, STD, SCH10, SCH10S, SCH40S, SCH80, SCH20, SCH5, SCH160 |
| Grade 7 Titanium pipe Length | Double Random, Single Random, Standard & Cut length Pipe |
| Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc |
| Form | Grade 7 Titanium are available in form of Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, "U" Shape, Pan Cake Coils etc. |
| Type of Titanium Gr.7 Pipe | Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW Grade 7 Titanium |
| Grade 7 Titanium pipeEnd | Plain End, Beveled End, Treaded Pipe, Screwed ends |
| Marking on Titanium AlloyGr 7 Pipe | All ASTM B337 Grade 7 Titanium Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
| Application of Grade 7 Titanium pipe | Dairy Pipe, Oil Pipe, Gas Pipe, Fluid Pipe, Boiler Pipe for Chemical Industry |
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Specialize in | Large Diameter Grade 7 Titanium Pipe |
| Grade 7 Titanium pipe manufacturing Technique | Cold drawn, hot drawn, bright annealed, solid solution, hot extruding |
| Grade 7 Titanium pipe Test Certificate | Manufacturer Test Certificate Laboratory Test Certificate from Govt. Approved Lab. Under Third Party Inspection |
| Material Test Certificates (MTC) | Material Test Certificates (MTC) as per EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2, 100% Radiography Test Report, Heat Treatment Charts, Raw Materials Certificate, Third Party Inspection Report, Fumigation Certificates, Grade 7 Titanium HS Code Commercial Invoice, Form A for Generalized System of Preferences (GSP) |
| We can also cut, thread, and groove UNS R52400 Pipe to meet your specifications. Grade 7 Titanium pipe Dimension ANSI/ ASME B36.10, B36.19, B2.1 | |
Titanium Gr 7 ERW Pipes Chemical Composition
| Grade | C | N | O | H | Ti | Fe |
|---|---|---|---|---|---|---|
| Titanium Grade 7 | .08 max | .03 max | .25 max | .015 max | Bal | 0.30 max |
Mechanical Strength of Titanium Alloy Gr.7 ERW Pipes
| Element | Min.Tensile(KSI) | Min.Yield(KSI) | Hardness | Tensile Modulus | Poisson's Ratio |
|---|---|---|---|---|---|
| Titanium Grade 7 | 130 | 120 | 16.4 | 114 GPa | 0.30-0.33 |
Titanium Werkstoff Nr. 3.7235 Pipes Equivalent
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Titanium Grade 7 | 3.7235 | R52400 |
Titanium UNS R52400 Pipe Size Chart
| 1/8" IPS(.405" O.D.) | 3 1/2" IPS( 4.000" O.D.) |
|---|---|
| SCH 40, 80 | SCH 10, 40, 80, 160, XXH |
| 1/4" IPS(.540" O.D.) | 4" IPS(4.500" O.D.) |
| SCH 10, 40, 80 | SCH 10, 40, 80, 160, XXH |
| 3/8" IPS(.675" O.D.) | 5" IPS( 5.563" O.D.) |
| SCH 10, 40, 80 | SCH 10, 40, 80, 160, XXH |
| 1/2" IPS(.840" O.D.) | 6" IPS(6.625" O.D.) |
| SCH 5, 10, 40, 80, 160, XXH | SCH 5, 10, 40, 80, 120, 160, XXH |
| 3/4" IPS(1.050" O.D.) | 8 " IPS(8.625" O.D.) |
| SCH 10, 40, 80, 160, XXH | SCH 5, 10, 40, 80, 120, 160, XXH |
| 1" IPS:(1.315′ O.D.) | 10" IPS(10.750" O.D.) |
| SCH 5, 10, 40, 80, 160, XXH | SCH 10, 20, 40, 80 (.500), TRUE 80(.500) |
| 1-1/4" IPS(1.660" O.D.) | 12" IPS(12.750" O.D.) |
| SCH 10, 40, 80, 160, XXH | SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500) |
| 1-1/2" IPS(1.900" O.D.) | 14" IPS(14.000" O.D.) |
| SCH 10, 40, 80, 160, XXH | SCH10 (.188), SCH40 (.375) |
| 2" IPS(2.375" O.D.) | 16" IPS(16.000" O.D.) |
| SCH 10, 40, 80, 160, XXH | SCH10(.188), SCH40(.375) |
| 2 1/2" IPS(2.875" O.D.) | 18" IPS (18.000" O.D.) |
| SCH 10, 40, 80, 160, XXH | SCH-40 (.375) |
| 3" IPS( 3.500" O.D.) | |
| SCH 5, 10, 40, 80, 160, XXH |
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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