Gr1 gr2 pure titanium tube for Heat Exchanger

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Supply Ability:20 Ton/Tons per Month

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Titanium alloy tube performance

Titanium alloy tube performance: Titanium alloy tube is a new type of metal. The performance of titanium is related to the content of impurities such as carbon, nitrogen, hydrogen and oxygen. The purest titanium iodide impurity content does not exceed 0.1%, but its strength is low. High plasticity. The performance of 99.5% industrial pure titanium is: density ρ=4.5g/cm3, melting point is 1725°C, thermal conductivity λ=15.24W/(mK), tensile strength σb=539MPa, elongation δ=25%, section Shrinkage ψ=25%, elastic modulus E=1.078×105MPa, hardness HB195.

Classification of titanium alloy tubes

The titanium alloy tube is a tube made of a titanium alloy, and the titanium alloy can be classified into three types according to the structure.
1. Add aluminum and tin to titanium.
2. Titanium is added with alloying elements such as aluminum chromium molybdenum vanadium.
3. Add elements such as aluminum and vanadium to titanium.

They have high mechanical properties, excellent stamping properties, and can be welded in various forms. The strength of the welded joint can reach 90% of the strength of the base metal, and the cutting performance is good. Titanium tubes have high corrosion resistance to chlorides, sulfides and ammonia. The corrosion resistance of titanium in seawater is higher than that of aluminum alloy, stainless steel and nickel-based alloy. Titanium is also resistant to water shock.

Characteristics and application of industrial pure titanium tube

Titanium has plasticity. The high-purity titanium has an elongation of 50 to 60% and a reduction in area of ​​70 to 80%. Despite the low strength of high-purity titanium, pure industrial titanium contains a small amount of impurities and the addition of alloying elements can significantly enhance its mechanical properties, so that its strength can be compared with high strength. This means that industrial pure titanium tubes can have both high strength and proper plasticity as long as they contain a small amount of interstitial impurities and other metal impurities.

The specific strength (strength to weight ratio) of industrial pure titanium pipes is very high in metal structural materials. Its strength is comparable to that of steel, but its weight is only 57% of that of steel. In addition, the titanium tube has a high heat resistance and maintains good strength and stability in an atmosphere of 500 °C. The titanium tube also has good low temperature resistance, and even at an ultra-low temperature of -250 °C, it has high impact strength and can withstand high pressure and vibration.

Another remarkable feature of the industrial pure titanium tube is its high corrosion resistance. This is because it has a particularly high affinity for oxygen and can form a dense oxide film on its surface to protect the titanium from the medium. Therefore, titanium has excellent stability in acidic, alkaline, neutral saline solutions and oxidizing media, and is superior in corrosion resistance to existing stainless steels and other non-ferrous metals. Industrial pure titanium tubes are widely used. At present, industrial pure titanium tubes are not only used in aerospace and aviation industries, but also widely used in many industrial sectors such as chemical, petroleum, light industry and power generation.

Because pure industrial titanium tube has many excellent characteristics such as light weight, high strength, strong heat resistance and corrosion resistance, it is known as “the metal of the future” and is a new type of structural material with great development prospects.

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FAQ

Q:How to get titanium tube suitable for me?
A:Check the details and click on send us Website form or email (anber@bjhighstar.com) and tell us the specification,grade and quantity you need. We will respond to you within 2 hours and give you the best offer.

Q:What are the classification of titanium tube?
A:gr2 gr1 pure titanium seamless tube,gr5,gr7,gr9 titanium alloy tube etc,standard:ASTM B338,ASTM B861 ETC…

Q:How long isyour delivery time?
A:If it is in stock, we will ship it within 2 days. If it isnot in stock, the construction period is about 7-15 days.

Q:What is the payment method?
A:We support wire transfer, T/T, credit card payment, PayPal, Payoneer,Western Union.

Q:Is it possible to provide free samples?
A:Of course,We can send free samples for your test according to your needs, you only need to pay a small amount of shipping.

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Titanium alloy has the following advantages compared with other metal materials

1 The specific strength (tensile strength/density) is high (see figure), the tensile strength can reach 100-140kgf/mm2, and the density is only 60% of steel.
2 medium temperature strength is good, the use temperature is several hundred degrees higher than aluminum alloy, can maintain the required strength at moderate temperature, and can work for a long time at 450~500 °C.
3 Corrosion resistance is good, and a uniform and dense oxide film is formed immediately on the surface of titanium in the atmosphere, which has the ability to resist erosion of various media. Titanium generally has good corrosion resistance in oxidizing and neutral media, and is superior in corrosion resistance in seawater, wet chlorine and chloride solutions. However, in a reducing medium such as hydrochloric acid, the corrosion resistance of titanium is poor.
4 Titanium alloy with good low temperature performance and very low gap element, such as TA7, can maintain a certain plasticity at -253 °C.
5 low modulus of elasticity, low thermal conductivity, no ferromagnetism.
6. High hardness.
7. Poor stamping and good thermoplasticity.
Heat Treatment Titanium alloys can be obtained by adjusting the heat treatment process to obtain different phase compositions and microstructures. It is generally believed that the fine equiaxed structure has good plasticity, thermal stability and fatigue strength; the needle-like structure has high durability, creep strength and fracture toughness; the equiaxed and needle-like mixed structure has better comprehensive performance.
Commonly used heat treatment methods are annealing, solid solution and aging treatment. Annealing is to eliminate internal stress, improve plasticity and structural stability to achieve better overall performance. Generally, the annealing temperature of α-alloy and (α+β) alloy is selected from 120° to 200°C below the (α+β)-→β phase transition point; solid solution and aging treatment is fast cooling from high temperature region to obtain martensite α′ The phase and the metastable β phase are then decomposed in the middle temperature region to decompose the metastable phase to obtain a finely dispersed second phase particle such as an α phase or a compound, thereby achieving the purpose of strengthening the alloy. Generally, the quenching of the (α+β) alloy is carried out at 40 to 100 ° C below the (α + β ) – → β phase transition point , and the metastable β alloy quenching is 40 to 80 ° C above the ( α + β ) – → β phase transition point . get on. The aging treatment temperature is generally 450 to 550 °C. In addition, in order to meet the special requirements of the workpiece, the industry also uses double annealing, isothermal annealing, β heat treatment, deformation heat treatment and other metal heat treatment processes.

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