ASTM B861 Grade 2 Seamless Titanium Tube for Corrosion Resistant Heat-Exchanger Service
Basic Properties
Place of Origin:
CHINA
Brand Name:
TORICH
Certification:
ISO 9001,ISO 14001
Model Number:
ASME SB861
Trading Properties
Minimum Order Quantity:
1 ton
Price:
negotiable
Payment Terms:
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability:
20000 Ton/year
Product Summary
ASTM B861 Gr2 Titanium Seamless Alloy Steel Tube For Heat-Exchanger Product Overview ASTM B861 Gr.2 seamless titanium tube is a commercially pure titanium product, not an alloy steel tube. It is selected for heat-exchanger systems where seawater, chlorides, wet chlorine compounds, and many oxidizing ...
Product Details
Highlight:
alloy steel tube
,alloy steel seamless tube
Material:
Commercially Pure Titanium / Titanium Alloy
Main Grade:
ASTM B861 Grade 2 / UNS R50400
Optional Grades:
Gr.1, Gr.7, Gr.9, Gr.12
Outside Diameter:
5–168 Mm
Wall Thickness:
0.2–5.2 Mm
Length:
1–12 M Standard, Up To 15 M Max, Custom Cut Length Available
Tolerance Range:
OD And WT According To ASTM B861 / ASTM B338 Or Agreed Drawing Tolerance
Heat Treatment:
Annealed; Grade 9 May Be Supplied Annealed Or Cold-worked And Stress-relieved According To Order Condition
Product Description
ASTM B861 Gr2 Titanium Seamless Alloy Steel Tube For Heat-Exchanger
Product Overview
ASTM B861 Gr.2 seamless titanium tube is a commercially pure titanium product, not an alloy steel tube. It is selected for heat-exchanger systems where seawater, chlorides, wet chlorine compounds, and many oxidizing media create high corrosion risk. ASTM B861 covers seamless titanium and titanium alloy pipe for general corrosion-resisting and elevated-temperature service, while ASTM B338 is the closer tube standard for condensers, evaporators, and heat exchangers.
Specifications
| Item | Description |
|---|---|
| Material | Commercially pure titanium / titanium alloy |
| Main Grade | ASTM B861 Grade 2 / UNS R50400 |
| Optional Grades | Gr.1, Gr.7, Gr.9, Gr.12 |
| Outside Diameter | 5-168 mm |
| Wall Thickness | 0.2-5.2 mm |
| Length | 1-12 m standard, up to 15 m max, custom cut length available |
| Tolerance Range | OD and WT according to ASTM B861 / ASTM B338 or agreed drawing tolerance |
| Straightness | Typically ≤1.5 mm/m for heat-exchanger tube supply, tighter by agreement |
| Surface Condition | Pickled, polished, bright annealed, or mechanically polished |
| Heat Treatment | Annealed; Grade 9 may be supplied annealed or cold-worked and stress-relieved according to order condition |
| Manufacturing Method | Seamless cold drawn / cold rolled from hollow billet |
| Inspection | Chemical analysis, tensile test, hydrostatic or pneumatic test, dimensional inspection, visual inspection |
Key Characteristics
| Property | Practical Value for Procurement |
|---|---|
| Corrosion Resistance | Grade 2 titanium provides strong resistance in seawater and chloride-containing cooling water, making it suitable for condenser and heat-exchanger tube bundles. |
| Strength Level | ASTM Gr.2 minimum tensile strength ≥345 MPa, yield strength 275-450 MPa, elongation ≥20%. |
| Low Density | Density about 4.51 g/cm³, roughly 56% of common stainless steel density, helping reduce tube-bundle weight. |
| Heat-Exchanger Suitability | ASTM B338 specifically covers titanium tubes for surface condensers, evaporators, and heat exchangers. |
| Surface Finish | Polished or pickled surface reduces fouling tendency and supports easier cleaning in heat-transfer service. |
| Weldability | Commercially pure Grade 2 titanium has good weldability when shielding gas and contamination control are properly managed. |
Our Advantages
| Professional Concern | How We Address It |
|---|---|
| Wrong standard selection between pipe and tube | For "ASTM B861 Gr.2" inquiries, we clarify whether the buyer needs seamless pipe under ASTM B861 or heat-exchanger tube under ASTM B338, because ASTM B338 is written for condensers, evaporators, and heat exchangers. |
| Risk of leakage in tube sheets | We control OD tolerance, straightness, surface finish, and end-cut quality to improve tube insertion, expansion, and sealing performance. Hydrostatic or pneumatic testing can be arranged before shipment. |
| Grade mismatch in corrosive media | We help match Gr.2, Gr.7, Gr.9, or Gr.12 according to chloride level, strength requirement, and corrosion severity. Grade 7 adds palladium, Grade 9 adds Al-V for higher strength, and Grade 12 adds Mo-Ni for improved corrosion resistance. |
Applicable Standards
| Standard System | Standard | Brief Scope |
|---|---|---|
| ASTM / ASME | ASTM B861 / ASME SB861 | Seamless titanium and titanium alloy pipe for corrosion-resisting and elevated-temperature service. |
| ASTM / ASME | ASTM B338 / ASME SB338 | Seamless and welded titanium tubes for condensers, evaporators, and heat exchangers. |
| GB | GB/T 3624 | Titanium and titanium alloy seamless tubes for general industrial use. |
| GB | GB/T 3625 | Titanium and titanium alloy tubes for condensers and heat exchangers. |
| DIN | DIN 17861 | Seamless circular titanium and titanium alloy tubes; technical delivery conditions. |
| JIS | JIS H 4630 | Titanium and titanium alloy tubes for heat-exchanger service. |
| GOST | GOST 24890 | Seamless titanium tubes, commonly referenced for Russian-market titanium tube supply. |
Application Field
Seawater-cooled shell-and-tube condenser tube bundle for coastal power plants, desalination equipment, and chemical-process cooling systems.
Chemical Composition
| Grade | UNS | N max % | C max % | H max % | Fe max % | O max % | Al % | V % | Pd % | Mo % | Ni % | Residual Each max % | Residual Total max % | Ti |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gr.1 | R50250 | 0.03 | 0.08 | 0.015 | 0.20 | 0.18 | -- | -- | -- | -- | -- | 0.10 | 0.40 | Balance |
| Gr.2 | R50400 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | -- | -- | -- | -- | -- | 0.10 | 0.40 | Balance |
| Gr.7 | R52400 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | -- | -- | 0.12-0.25 | -- | -- | 0.10 | 0.40 | Balance |
| Gr.9 | R56320 | 0.03 | 0.08 | 0.015 | 0.25 | 0.15 | 2.5-3.5 | 2.0-3.0 | -- | -- | -- | 0.10 | 0.40 | Balance |
| Gr.12 | R53400 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | -- | -- | -- | 0.2-0.4 | 0.6-0.9 | 0.10 | 0.40 | Balance |
Mechanical Properties
| Grade | Tensile Strength, min MPa | Yield Strength, MPa | Elongation, min % | Typical Grade Positioning |
|---|---|---|---|---|
| Gr.1 | ≥240 | 138-310 | 24 | Highest ductility CP titanium |
| Gr.2 | ≥345 | 275-450 | 20 | Standard corrosion-resistant CP titanium |
| Gr.7 | ≥345 | 275-450 | 20 | Pd-enhanced corrosion resistance |
| Gr.9 | ≥620 | ≥483 | 15 | Higher-strength Ti-3Al-2.5V alloy |
| Gr.12 | ≥483 | ≥345 | 18 | Mo-Ni enhanced corrosion resistance |
Product Images
Frequently Asked Questions
Are you trading company or manufacturer?
Manufacturer, also can do trading.
How long is your delivery time?
Generally speaking, it is 10-15 days if the goods are in stock, or it is 30-40 days if the goods are not in stock, according to quantity.
Do you provide samples? Is it free or extra?
Yes, we could offer the sample for free charge but need pay the cost of freight.
What is your terms of payment?
Payment ≤ 2000 USD, 100% in advance. Payment ≥ 2000 USD, 30% T/T in advance, balance before shipment. If you have another question, please feel free to contact with me.
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