6Al4V Titanium Tubing

Item name:6Al4V Titanium tubing
Material:CP titanium Gr1,Gr2,Titanium alloy Gr5,Gr7,Gr9,Gr12
Standard:ASTM B337,ASTM B338,ASTM B861
Size:OD range 3mm-219mm,WT range0.5mm-10mm
Length：Less than 6000mm
Our feature:Custom size and specs

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Description

what is 6Al4V Titanium tubing?

6Al4V Titanium tubings are seamless or welded pipes made from high-purity titanium and titanium alloy materials through precision machining processes. As a typical representative of "space metal" and "marine metal," titanium alloy tubes, with their ultra-high specific strength, excellent corrosion resistance, superior biocompatibility, and wide temperature range adaptability, have become an indispensable key material in high-end manufacturing fields such as aerospace, medical and health, and chemical energy.

With its superior performance, it has gradually become a key material in the high-end manufacturing field. At present, it has formed a complete standard system and industrial scale, and is widely supplied to aerospace, medical, chemical and other fields.

Physical performance indicators

Parameter	Numerical range	Remarks
Density	4.43-4.51 g/cm³	It is only 60% of the weight of steel and 1.7 times that of aluminum.
Melting point	1660-1680°C	Excellent high temperature stability
Coefficient of thermal expansion	8.6×10⁻⁶/°C (20-100°C)	Good compatibility with glass and ceramics
Elastic modulus	105-120 GPa	It is about 50% the weight of steel and has strong impact resistance.
Thermal conductivity	7.0-17.0 W/(m·K)	Suitable for heat exchange applications

Mechanical Properties (using Gr.5 as an example)

Tensile Strength: ≥895 MPa (annealed state), up to 1034 MPa after cold working
Yield Strength: ≥825 MPa
Elongation: 10%-18%
Hardness: HRC 36-38 (solution-aged state)
Fatigue Strength: Excellent high-cycle fatigue performance

Classification of 6Al4V Titanium tubing

Classification by Forming Process:

Seamless Titanium Alloy Tubes: Manufactured through processes such as stretching, skew rolling, and extrusion, their seamless structure enhances their pressure-bearing capacity, allowing them to withstand internal pressures of 200-300 MPa. Suitable for extreme conditions such as high-pressure heat exchangers and deep-sea oil exploration, they conform to standards such as GB/T 3624-2023 and ASTM B338.

Welded Titanium Alloy Tubes: Formed using welding processes, they are relatively low-cost and offer greater flexibility in specifications. Suitable for fields with lower pressure requirements, such as chemical pipelines and building decoration, they initially conformed to the GB/T 3624-1995 standard; currently, some technical requirements have been integrated into relevant industry specifications.

Classification by Special Forms:

In addition to conventional round tubes, there are also special-form products such as titanium alloy square tubes and titanium coils:

Titanium alloy square tubes: Hollow rectangular thin-walled structure with high corner dimensions and edge flatness. They possess high strength, corrosion resistance, and good weldability, and are widely used in building curtain walls, shipbuilding, solar panel mounting systems, and other fields.

Titanium coils: Include various types such as serpentine tubes, U-shaped tubes, and spiral tubes. Materials include Gr1, Gr2, and Gr5. They have a smooth, scale-free surface, excellent corrosion resistance, and are suitable for heat exchange equipment in extremely corrosive environments such as seawater desalination and chlor-alkali chemical industries.

Typical characteristics

Corrosion resistance is a typical property of 6Al4V Titanium tubing.

6Al4V Titanium tubing exhibit superior performance in the following media:

Seawater and marine atmosphere: Corrosion resistance approaching that of platinum, with a lifespan exceeding 30 years
Chloride ion environments: Resistance to pitting and crevice corrosion far surpasses that of stainless steel
Oxidizing acids: Stable in strong oxidizing media such as nitric acid and chromic acid
Reducing acids: Grades such as Gr.7/Gr.12 show improved resistance to hydrochloric acid and sulfuric acid through alloying.

Typical application areas

(I) Aerospace Industry

Titanium alloy tubing is one of the core materials in the aerospace industry, used in the manufacture of critical components such as aircraft engine casings, compressor parts, aircraft fuselage and wing structures, and fuel tanks. It can reduce the structural weight of aircraft by approximately 20%-30%, improving flight performance and load capacity. For example, TC4 titanium alloy tubing is widely used in the manufacture of structural components for fighter jets, rockets, and missiles.

(II) Medical Industry

Due to its excellent biocompatibility and corrosion resistance, titanium alloy tubing is used in the manufacture of orthopedic implants (such as artificial joints and bone screws), dental fillings, and artificial heart valves. It effectively reduces rejection reactions in the human body, and the lifespan after implantation can reach over 20 years.

(III) Energy and Chemical Industry

**Chemical Industry: Used in the manufacture of heat exchangers, condensers, pipelines, etc., it can operate stably in environments with strong acids, strong alkalis, and highly corrosive media, solving the corrosion failure problem of traditional steel pipes. Currently, the annual consumption of titanium pipes in the chemical industry exceeds 1500 tons^.

**Nuclear Power Industry: As standardized pipes for nuclear power units, it maintains stable performance under high temperature, high pressure, and strong radiation environments, ensuring the long-term safe operation of nuclear power equipment.

**Oil Exploration: Titanium alloy drill pipes are 40% lighter than traditional steel pipes, enabling ultra-deep wells and ultra-short radius drilling (curvature radius 3-5 meters), improving the efficiency and scope of oil extraction.

(IV) Marine Engineering

TC18 and other titanium alloy pipes possess characteristics such as low density, high strength, strong corrosion resistance, and non-magnetic properties. They are suitable for manufacturing subsea pipelines, subsea oil wells, and support structures for offshore wind turbines, and can still serve for a long time in high-velocity, polluted seawater environments^.

(V) Civil Applications

Sports and Leisure: Used in the manufacture of trekking poles, high-end bicycle frames, etc. Titanium alloy bicycle frames weigh only 50% of steel, have a strength-to-weight ratio 28.4% higher than chromium-molybdenum steel, twice the fatigue limit of steel, and a longer service life^.

Architectural Decoration: Anodized titanium alloy tubes not only have better corrosion resistance but also come in a variety of colors, making them suitable for building curtain walls, interior decoration, and other applications.