Titanium Coiled Tube for Heat Exchanger (ASTM B861)
Titanium coiled tubes manufactured according to ASTM B861 are widely used in heat exchanger systems due to their excellent corrosion resistance, high strength-to-weight ratio, and superior heat transfer performance. Formed into continuous coils, these tubes provide increased surface area, enabling enhanced heat exchange efficiency.
Titanium seamless coiled tubes are ideal for applications involving
corrosive fluids, seawater, brine, chlorides, high temperatures,
and demanding industrial environments. Their seamless structure
ensures uniform wall thickness, high-pressure resistance, and long service life, making them suitable for both heating and cooling processes.
Inside a heat exchanger, fluid flows through the titanium coils and
exchanges heat with another medium, achieving efficient thermal
transfer with minimised energy loss.
Chemical Composition & Mechanical Properties
Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|
| Gr1 | 240 | 170 | 24 |
| Gr2 | 345 | 275 | 20 |
| Gr4 | 550 | 483 | 15 |
| Gr5 | 895 | 828 | 10 |
| Gr7 | 400 | 275 | 18 |
| Gr9 | 620 | 483 | 15 |
| Gr12 | 483 | 348 | 18 |
| Gr23 | 793 | 759 | 10 |
Chemical Composition (wt%)
| Grade | Fe max | O max | N max | C max | H max | Pd max | Al | V | Ni | Mo |
|---|
| Gr1 | 0.20 | 0.18 | 0.03 | 0.08 | 0.015 | — | — | — | — | — |
| Gr2 | 0.30 | 0.25 | 0.03 | 0.08 | 0.015 | — | — | — | — | — |
| Gr4 | 0.50 | 0.40 | 0.05 | 0.08 | 0.015 | — | — | — | — | — |
| Gr5 | 0.40 | 0.20 | 0.05 | 0.08 | 0.015 | — | 5.5–6.7 | 3.5–4.5 | — | — |
| Gr7 | 0.30 | 0.25 | 0.03 | 0.08 | 0.015 | 0.12–0.25 | — | — | — | — |
| Gr9 | 0.25 | 0.15 | 0.03 | 0.08 | 0.015 | — | 2.5–3.5 | 2.0–3.0 | — | — |
| Gr12 | 0.30 | 0.25 | 0.03 | 0.08 | 0.015 | — | — | — | 0.6–0.9 | 0.2–0.4 |
| Gr23 | 0.25 | 0.03 | 0.03 | 0.08 | 0.0125 | — | 5.5–6.5 | 3.5–4.5 | — | — |
Titanium Content: Balance
Applications of Titanium Coiled Tube for Heat Exchangers
Titanium coiled tubes are extensively used in industries requiring
corrosion resistance, durability, and efficient thermal transfer.
Aerospace
Hydraulic systems
Fuel lines
Exhaust systems
Landing gear components
Petrochemical & Oil/Gas
Oil & gas pipelines
Offshore heat exchangers
Cooling/heating coils in refineries
Chemical Processing
Reaction vessels
Condensers & evaporators
Corrosive fluid piping systems
Medical Industry
Titanium Gr1 coiled tubes for implants
Prosthetic components
Surgical equipment
Food & Beverage Industry
Heat exchangers in processing plants
Sanitary piping
Storage tanks exposed to acidic fluids
Advantages of Titanium Coiled Tubes
Exceptional corrosion resistance (chlorides, seawater, acids)
Lightweight with high mechanical strength
High temperature resistance
Excellent thermal conductivity
Seamless coils = fewer welds → greater reliability
Long service life and reduced maintenance cost
