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Titanium Flanges

ARK Stainless Inc. is a reliable manufacturer and supplier of top-quality Titanium Flanges, offered in a variety of grades including Titanium Gr 1, Gr 2, Gr 5, and Gr 9. These flanges are renowned for their excellent mechanical strength, outstanding corrosion resistance, and low density, making them ideal for use in demanding sectors such as aerospace, chemical processing, marine engineering, and power generation. Their superior resistance to seawater, chlorides, and oxidizing agents makes them perfect for aggressive service environments.

Our Titanium flanges are meticulously crafted using premium-grade raw materials to ensure excellent weldability, durability, and performance under high-stress and high-temperature conditions. Available types include Weld Neck, Slip-On, Socket Weld, Blind, Lap Joint, and Threaded flanges, designed to accommodate various industrial piping systems with precision and strength. Each flange adheres to international standards like ASTM B381 / ASME SB381 and dimensional norms including ASME B16.5, B16.47, and MSS-SP-44, ensuring consistent quality and global compatibility.

Titanium Gr 1 and Gr 2 Flanges are favored for their high ductility, corrosion resistance, and excellent weldability, particularly in marine and chemical environments. Gr 5 and Gr 9 Flanges are known for their higher tensile strength, superior fatigue resistance, and performance in high-temperature applications, making them suitable for aerospace and high-pressure systems. These flanges offer long service life, reliability under extreme conditions, and seamless integration into both standard and custom piping solutions.

Chemical Compositions Of Titanium Flanges

Element Titanium Gr 1 Titanium Gr 2 Titanium Gr 5 Titanium Gr 9
C 0.1 0.1 - -
Fe 0.2 0.3 0.25 -
H 0.015 0.015 - -
N 0.03 0.03 - -
O 0.18 0.25 0.2 -
Ti 99.5 99.2 90 95
Al - - 6 3
V - - 4 2.5

Mechanical Properties Of Titanium Flanges

Property Titanium Gr 1 Titanium Gr 2 Titanium Gr 5 Titanium Gr 9
Tensile Strength 240 MPa 50 ksi Psi – 138000, MPa – 950 620 Psi
Yield Strength 170 MPa 40 ksi Psi – 128000, MPa – 880 500 MPa
Elongation 24% 14%
Hardness (Brinell) 256
Hardness (Knoop) 278
Hardness (Rockwell) 14.9 24
Density 4.43 g/cm³
Melting Point 1632 °C (2970 °F)

Titanium Gr 1 Flanges

Titanium Gr 1 Flanges are extensively used across a wide range of industries such as gas pipelines, paper and pulp production, offshore oil drilling, structural piping, food processing, power plants, fabrication units, water supply systems, heat exchangers, petrochemical industries, pharmaceutical sectors, plumbing systems, and condensers. Their versatility and strength make them highly preferred for demanding industrial operations.
Manufactured using premium quality raw materials, Titanium Gr 1 Flanges exhibit exceptional hardness and durability, ensuring reliable performance even in harsh environments without deformation. These flanges offer outstanding resistance against various forms of corrosion, including stress corrosion cracking, crevice corrosion, pitting corrosion, and impact corrosion.
Specially engineered for use in chemical processing applications and electrical systems, Titanium Gr 1 Flanges are recognized for their superior quality and resilience. Their robust design and corrosion-resistant features make them among the most sought-after products in the global market.


Titanium Grade 1 Flanges Equivalent Grades
STANDARD UNS WNR.
Titanium Gr 1 R50250 3.7025

Specification of Titanium Grade 1 Flanges
  • Titanium Flanges Specification : ASTM B363 / ASME SB363
  • Dimension Standard : ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
  • Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
  • Size : 1/2" (15 NB) to 48" (1200NB)
  • Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64, etc.
  • Flange Face Type : Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
  • DIN Flanges : DIN 2527, 2566, 2573, 2576, 2641, 2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637, 2638, 2673
  • JIS Flanges : JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
  • BS Flanges : BS4504 PN 6, BS4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS4504 PN 64, BS4504 PN 100, BS4504 PN 160, BS4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H

Titanium Gr 2 Flanges

Titanium Gr 2 Flanges are known for their exceptional qualities such as excellent workability, ductility, impeccable finish, durability, weldability, formability, and flexibility. Manufactured in accordance with international specifications, these flanges deliver outstanding performance even in harsh and high-temperature environments without any deformation. Due to their superior corrosion resistance and high strength, Titanium Gr 2 Flanges are among the most demanded titanium flanges across various industries.
To ensure the highest standards of quality and reliability, Titanium Gr 2 Flanges undergo a comprehensive range of tests including flaring tests, mechanical testing, chemical analysis, pitting resistance testing, impact tests, hardness tests, hydrostatic tests, radiography tests, and macro examinations. Packaging is done with utmost care using pallets or customized plywood cases to guarantee safe delivery and meet client-specific requirements.


Titanium Grade 2 Flanges Equivalent Grades
STANDARD UNS WNR.
Titanium Gr 2 R50400 3.7035

Specification of Titanium Grade 2 Flanges
  • Specification: ASTM B363 / ASME SB363
  • Dimension Standard: ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
  • Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
  • Size: 1/2" (15 NB) to 48" (1200 NB)
  • Class / Pressure: 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64, etc.
  • Flange Face Type: Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
  • DIN Flanges: DIN 2527, 2566, 2573, 2576, 2641, 2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637, 2638, 2673
  • JIS Flanges: JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
  • BS Flanges: BS4504 PN 6, BS4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS4504 PN 64, BS4504 PN 100, BS4504 PN 160, BS4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H

Titanium Gr 5 Flanges

Titanium Gr 5 Flanges are extensively utilized across a wide range of industries such as petrochemical, chemical, aerospace, pulp, paper, offshore, power generation, and marine sectors. These flanges play a critical role in aerospace engine and airframe parts, as well as in non-aerospace applications that demand high reliability and temperature resistance up to 400 degrees Celsius.
Known for their lightweight nature, excellent formability, superior weldability, high ductility, outstanding mechanical properties, and exceptional strength, Titanium Gr 5 Flanges offer a blend of features ideal for harsh environments. They exhibit remarkable corrosion resistance against acid attacks and are highly durable even in severe climatic conditions. Their excellent weldability allows for customized forming based on client requirements, and their ability to withstand elevated temperatures makes them particularly suitable for offshore drilling, mining operations, and other demanding industrial applications.


Titanium Grade 5 Flanges Equivalent Grades
STANDARD UNS WNR.
Titanium Gr 5 R56400 3.7165

Specification of Titanium Grade 5 Flanges
  • Specification: ASTM B363 / ASME SB363
  • Dimension Standard: ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS10, EN-1092, DIN, etc.
  • Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
  • Size: 1/2" (15 NB) to 48" (1200 NB)
  • Class / Pressure: 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64, etc.
  • Flange Face Type: Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
  • DIN Flanges: DIN 2527, 2566, 2573, 2576, 2641, 2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637, 2638, 2673
  • JIS Flanges: JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
  • BS Flanges: BS4504 PN6, BS4504 PN10, BS4504 PN16, BS4504 PN25, BS4504 PN40, BS4504 PN64, BS4504 PN100, BS4504 PN160, BS4504 PN250, BS10, BS Table D, BS Table E, BS Table F, BS Table H

Titanium Gr 9 Flanges

Titanium Gr 9 Flanges are highly reliable and are known to retain their properties even under harsh usage and extreme climates. This grade offers enhanced corrosion resistance, providing superior strength and durability at high temperatures, along with excellent cold rolling properties. It delivers an exceptional surface finish, allowing it to be easily shaped or bent without compromising its structural integrity.
Thanks to its outstanding resistance to harsh chemicals and environmental conditions, Titanium Gr 9 Flanges are widely utilized across a diverse range of industries. The chemical exposure in these industries does not affect the integrity of the flanges, making them ideal for critical applications.
Before shaping the material into different flange types, the raw material undergoes extensive testing to ensure it meets the necessary quality standards. Additionally, we provide complete documentation for every product, covering details such as product name, number of slots, material specifications, and copies of all test reports to ensure full transparency and quality assurance.


Titanium Grade 9 Flanges Equivalent Grades
STANDARD UNS WNR.
Titanium Gr 9 R56320 3.7195

Specification of Titanium Grade 9 Flanges
  • Specification: ASTM B363 / ASME SB363
  • Dimension Standard: ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
  • Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
  • Size: 1/2" (15 NB) to 48" (1200 NB)
  • Class / Pressure: 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64, etc.
  • Flange Face Type: Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
  • DIN Flanges: DIN 2527, 2566, 2573, 2576, 2641, 2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637, 2638, 2673
  • JIS Flanges: JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
  • BS Flanges: BS4504 PN 6, BS4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS4504 PN 64, BS4504 PN 100, BS4504 PN 160, BS4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H