High-Quality Titanium Tube and Pipe Factory in China - ASTM B338 Suppliers
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.
The seamless titanium tube has high strength. The tensile strength of titanium alloy is 686-1176mpa, and the density is only about 60% of that of steel, so the specific strength is very high. The hardness of titanium alloy (annealed) is HRC32-38. Seamless titanium tube also has strong corrosion resistance. Titanium at 550℃ in the air below, the surface will form thin and dense rapidly. Therefore, the corrosion resistance of titanium oxide film is better than that of most stainless steel in the oxidizing medium such as atmosphere, sea water, nitric acid and sulfuric acid and strong alkali.
Another great thing about titanium is that, just as there are different types of stainless steel, copper, nickel, there are many different grades of titanium tube.
For instance, ASTM has a variety of standards (principally ASTM B338/ASME SB338, ASTM B265/ASME SB265, ASTM B348/ASME SB348, and ASTM B381/ASME SB381) relating to the "recipes" for titanium grades used in different applications. If you look at the specs, you will see there are even multiple grades for unalloyed titanium, e.g. GR1, GR2, GR5, GR7, GR9 and GR12 etc.
Another advantage of titanium tube in medical devices is that it is biocompatible. Not only can the human body tolerate the use of titanium (which is important enough), but it is also nonmagnetic — an increasingly important trait as the use of magnetic resonance imaging (MRI) becomes more common in medical diagnostics.
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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
Titanium tubes offer key benefits including light weight, high strength, superior mechanical properties, and outstanding corrosion resistance.
They are widely used in heat exchange equipment (such as tubular, coil, and serpentine heat exchangers, condensers, and evaporators), conveying pipelines, and as standard tubes in many nuclear power plants.
Seamless titanium tubes have a tensile strength of 686-1176 MPa. Because their density is only about 60% of steel, their specific strength is exceptionally high.
Titanium grades for various applications are principally governed by ASTM/ASME standards, including ASTM B338/ASME SB338, ASTM B265/ASME SB265, ASTM B348/ASME SB348, and ASTM B381/ASME SB381.
Titanium is biocompatible, meaning it is tolerated well by the human body. Additionally, it is nonmagnetic, which is a critical feature for compatibility with magnetic resonance imaging (MRI) diagnostics.
In air below 550℃, titanium rapidly forms a thin, dense oxide film on its surface. This film provides superior corrosion resistance in oxidizing media, sea water, nitric acid, sulfuric acid, and strong alkalis.