Vishal Flanges stands out as a leading manufacturer and supplier of **Titanium Long Weld Neck Flanges** right from the heart of Delhi, India. They’re well-regarded for providing top-notch flange solutions tailored for critical industries. These flanges come with an extended neck that not only reinforces the structure but also helps in smoothly transitioning stress from the flange to the pipe, making them perfect for high-pressure and high-temperature scenarios. Crafted from high-quality Titanium Grades like Grade 2 and Grade 5, these flanges boast impressive corrosion resistance, strength, and durability. Vishal Flanges is committed to ensuring precise dimensions and adherence to global standards, which makes their Titanium Long Weld Neck Flanges a go-to choice for demanding sectors such as chemical, aerospace, oil & gas, and power generation.
Typically, Titanium Long Weld Neck Flanges are made using either Titanium Grade 2 (which is commercially pure titanium) or Grade 5 (Ti-6Al-4V). Grade 2 is known for its excellent corrosion resistance and decent ductility, while Grade 5 provides enhanced mechanical strength thanks to its aluminum (6%) and vanadium (4%) content. The tensile strengths of these flanges range from 344 MPa for Grade 2 to 895 MPa for Grade 5, and their low density of about 4.5 g/cm³ makes them ideal for lightweight, high-strength applications. The extended neck design ensures outstanding structural integrity, especially in high-stress environments like reactors and heat exchangers.
| Specification | ASTM B381 / ASME SB381 |
|---|---|
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
| Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production Technique | Forged, Heat treated and machined |
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (F), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange B.S: BS4504 , BS3293, BS1560, BS10 AS 2129: Table D; Table E; Table H ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 American standard (ANSI) German (DIN) British standard (BS) DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ASTM B381 Gr.5 Titanium Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
| Grades | Titanium Gr.2, Gr.5 |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
Titanium long weld neck flanges are extensively applied in high-strength, corrosion-resistant, and dependable applications under harsh conditions in industries. The long neck of the flange ensures superior support for high-temperature and high-pressure pipes, and thus they find use in oil and gas, petrochemical, aerospace, and marine industries. These flanges perform well in corrosive conditions, like offshore exploration and chemical manufacturing, due to titanium’s immunity to chlorides, seawater, and acids. They also find application in power generation and nuclear facilities, where structural stability and long lifespan are critical to safety and operation in hostile applications.
| STANDARD | UNS | WERKSTOFF NR. |
| Titanium Gr 2 | R50400 | 3.7035 |
| Titanium Gr 5 | R56400 | 3.7165 |
| ASME/ANSI B 16.5 | Long Weld Neck Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Long Weld Neck Flange [Series A & B],Welding Neck Flange |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Long Weld Neck Flange |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| PRESSURE CLASS | PN 2.5 TO PN 40 |
| BS 4504[PART 1] | Hubbed Slip-On |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Hubbed Slip-On Hubbed Threaded |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Plate Slip-On Flange, Slip-On Boss Flange |
| TABLE | D, E, F, H |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| PRESSURE CLASS | PN 6 TO PN 100 |
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
You’ll find Titanium Long Weld Neck Flanges commonly used in high-pressure and high-temperature piping systems, where strength and structural integrity are critical. In chemical processing plants, they’re utilized in equipment that deals with aggressive media. In the oil and gas sector, they’re installed in refineries and offshore platforms for high-stress connections. The aerospace industry appreciates them for their lightweight, high-strength assemblies. They’re also essential in nuclear and power generation facilities, where durability and resistance to thermal expansion are vital. Plus, their long neck design allows for easy installation and maintenance.
Titanium long weld neck flanges tend to be composed of titanium alloys like Ti-6Al-4v, 90% of titanium, 6% of aluminium and 4% vanadium. They are high-tensile-strength flanges (with strength of up to 1,200 MPa), of light weight and feature fine corrosion resistance under very demanding situations. Weld and alignment strengths are increased due to the design of the neck. Some key advantages are high fatigue, oxidation, and chemical corrosion resistance, suitable for aerospace, marine, and medical use gives durability, reduced maintenance, and maintains portable operation,n dependable in complexity.
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