ThePipingMart Blog Products Titanium Grade 5 Flanges – Composition, Properties and Uses

Titanium Grade 5 Flanges – Composition, Properties and Uses

Titanium Grade 5 Flanges - Composition Properties And Uses

Titanium grade 5, known as Ti 6Al-4V, boasts excellent strength-to-weight ratio, corrosion resistance, and biocompatibility, making it a popular material choice in various industries, including aerospace, medical, and automotive. This blog post will explore the composition, physical and mechanical properties, uses, heat treatment, and corrosion resistance of Grade 2 Titanium Flanges.

Titanium Grade 5 Flanges Composition

Gr. 5 Titanium Slip-On Flanges is an alloy composed of 6% aluminium, 4% vanadium, and the remaining balance of pure titanium. This alloy’s chemical makeup significantly enhances its mechanical properties, making it stronger and more durable than pure titanium. Additionally, Ti 6Al-4V is weldable, readily formed, and resistant to fatigue and crack propagation.

Grade Ti C Fe H N O Al V
Ti Grade5 90 min 0.25 max 0.2 max 6 min 4 min

Titanium Grade 5 Flanges Physical Properties

Grade 5 titanium RTJ Flange are known for their lightweight yet robust nature. With a 4.43 g/cm3 density, Ti 6Al-4V is approximately 60% the weight of an equivalent steel component. Its relatively low thermal conductivity, 6.7 W/(m·K), makes titanium grade 5 an excellent choice for high-temperature applications, particularly because it resists thermal expansion and contraction.

Physical Properties Metric English
Density 4.43 g/cc 0.16 lb/in³

Titanium Grade 5 Flanges Mechanical Properties

ASME SB 381 Gr 5 Blind flange  are renowned for their high strength, with a minimum yield strength of 880 MPa (128000 psi) and a tensile strength of 950 MPa (138000 psi). Ti 6Al-4V components in their annealed state feature elongation of 14%, and their fatigue strength up to 50,000 cycles is 430 MPa (62,000 psi). It offers excellent toughness and flexibility and can be hot or cold-formed easily.

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Titanium Gr. 5 4.43 g/cm3 1632 °C (2970 °F) Psi – 138000 , MPa – 950 Psi – 128000 , MPa – 880 14 %

Titanium Grade 5 Flanges Equivalent

Titanium Gr. 5 3.7165 N56400

Titanium Grade 5 Flanges Uses

UNS R56400 Socket weld flange  Socket weld flange  are suitable for various applications, including aerospace, medical, marine, and automotive. Its high strength-to-weight ratio makes it ideal for aircraft structural parts, exhaust systems, and landing gears. Ti 6Al-4V is also used in prosthetics, dental implants, and surgical tools in the medical field. High-performance engine parts, high-temperature exhaust systems, and heat exchangers are also examples of applications for titanium grade 5.

Titanium Grade 5 Flanges Heat Treatment

Grade 2 Titanium Flanges can undergo heat treatment to increase their mechanical properties further, enhancing their toughness and strength while reducing their formability. The solution treatment involves heating the material to 900–925°C and rapidly cooling it, then heating it to 745°C and holding it for several hours before cooling again. This process creates fine α crystallites, improving the metal’s ductility and toughness.

Titanium Grade 5 Flanges Corrosion Resistance

ASME SB 381 Gr 5 Blind flange  are well-known for their excellent corrosion resistance properties. Their surface can form a compact oxide layer, protecting them from various corrosives such as seawater, acids, and alkalis. This corrosion resistance ensures the longevity and durability of titanium grade 5 flanges, ensuring their use in aggressive environments.



Due to their outstanding properties, UNS R56400 flanges are an excellent material choice for various applications. Their composition of 6% aluminium, 4% vanadium, and titanium creates a strong and lightweight material, making it ideal for aerospace, medical, and automotive applications. They are also resistant to corrosion, fatigue, and thermal expansion and can be readily formed using hot or cold forming. Furthermore, Ti 6Al-4V flanges is also heat-treatable, enhancing its mechanical properties even further. In summary, titanium grade 5 is a versatile material with several benefits, making it an important component in many high-tech applications.

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