High-Quality Titanium Tubes & Pipes - ASTM B338 Supplier & Factory in China
To Know About Titanium Tube
Titanium tube has the advantages of light weight, high strength and superior mechanical properties. It is widely used in heat exchange equipment, such as tubular heat exchanger, coil heat exchanger, serpentine tube heat exchanger, condenser, evaporator and conveying pipeline. Many nuclear power plants use titanium tube as the standard tube for their units.
- 💪 High Strength & Low Density: The tensile strength of titanium alloy is 686–1176 MPa, with a density only about 60% of steel, delivering an exceptionally high specific strength. The hardness of titanium alloy (annealed) is HRC32–38.
- 🛡️ Superior Corrosion Resistance: Titanium forms a thin, dense oxide film rapidly in air below 550°C, providing better corrosion resistance than most stainless steel in oxidizing media such as atmosphere, sea water, nitric acid, sulfuric acid, and strong alkali.
- 📋 Multiple Grades Available: ASTM standards (principally ASTM B338/ASME SB338, ASTM B265/ASME SB265, ASTM B348/ASME SB348, and ASTM B381/ASME SB381) define multiple grades including GR1, GR2, GR5, GR7, GR9, and GR12 for different applications.
- 🏥 Biocompatible & Nonmagnetic: In medical devices, titanium is biocompatible — the human body can tolerate its use. It is also nonmagnetic, an increasingly important trait as MRI usage becomes more common in medical diagnostics.
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Titanium Pipe
Titanium Seamless Pipe
Titanium SMLS Pipe
Titanium Tube Tensile Requirements
| Grade | Tensile Strength, Min | Yield Strength, 0.2% Offset Yield | Elongation in 2 in. or 50mm, Min. % | ||||
|---|---|---|---|---|---|---|---|
| Ksi | MPa | Min. | Max. | ||||
| Ksi | MPa | Ksi | MPa | ||||
| 1 | 35 | 240 | 20 | 138 | 45 | 310 | 24 |
| 2 | 50 | 345 | 40 | 275 | 65 | 450 | 20 |
| 3 | 65 | 450 | 55 | 380 | 80 | 550 | 18 |
| 5 | 130 | 895 | 120 | 828 | — | — | 10 |
| 7 | 50 | 345 | 40 | 275 | 65 | 450 | 20 |
| 9A | 90 | 620 | 70 | 483 | — | — | 15C |
| 9B | 125 | 860 | 105 | 725 | — | — | 10 |
| 11 | 35 | 240 | 20 | 138 | 45 | 310 | 24 |
| 12 | 70 | 483 | 50 | 345 | — | — | 18C |
| 16 | 50 | 345 | 70 | 275 | 65 | 450 | 20 |
| 17 | 35 | 240 | 20 | 138 | 45 | 310 | 24 |
Frequently Asked Questions
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What are the main advantages of titanium tubes over stainless steel tubes?
Titanium tubes offer a superior strength-to-weight ratio — they are approximately 40% lighter than stainless steel while maintaining comparable or higher tensile strength. They also provide better corrosion resistance in oxidizing media such as sea water, nitric acid, and sulfuric acid, making them ideal for demanding industrial and marine environments.
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What industries commonly use titanium tubes?
Titanium tubes are widely used in heat exchange equipment (tubular heat exchangers, condensers, evaporators), nuclear power plants, chemical processing, marine engineering, aerospace, and medical device manufacturing due to their outstanding mechanical and biocompatible properties.
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What ASTM standards apply to titanium tubes?
The principal ASTM standards for titanium tubes include ASTM B338/ASME SB338 (welded and seamless tubes for condensers and heat exchangers), ASTM B265/ASME SB265 (strip, sheet, and plate), ASTM B348/ASME SB348 (bar and billet), and ASTM B381/ASME SB381 (forgings). These standards cover various grades from GR1 to GR12 and beyond.
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What is the difference between titanium Grade 1, Grade 2, and Grade 5?
Grade 1 is the purest and most ductile form of unalloyed titanium with a minimum tensile strength of 240 MPa, best suited for applications requiring maximum formability. Grade 2 is the most widely used grade, offering a balance of strength (345 MPa) and corrosion resistance. Grade 5 (Ti-6Al-4V) is the most common titanium alloy, with a tensile strength of 895 MPa, used in high-performance aerospace and structural applications.
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Why is titanium tube used in medical devices?
Titanium is biocompatible, meaning the human body can tolerate it without adverse reactions, making it ideal for implants and surgical instruments. Additionally, titanium is nonmagnetic, which is critical for patients who need MRI (Magnetic Resonance Imaging) scans, as magnetic metal implants can pose safety risks in MRI environments.
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What is the corrosion resistance of titanium tubes at elevated temperatures?
Titanium forms a thin, dense, and stable oxide film on its surface in air at temperatures below 550°C, which provides excellent protection against corrosion. This passive film gives titanium superior corrosion resistance compared to most stainless steel grades in oxidizing environments including atmosphere, sea water, nitric acid, sulfuric acid, and strong alkali solutions.