| Flanges Types | Long Weld Neck |
|---|---|
| Class | 150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove |
Long Weld Neck Flanges Supplier In India for High Pressure Pipelines Offshore Platforms and Petrochemical Industries
Peekay Metal Corporation is a top Long Weld Neck Flanges manufacturer in India, which manufactures highly accurate engineered flanges intended to be used in a specific industry. Long Weld Neck Flanges are characterized by a long neck which serves as an extension of the pipe itself, and therefore they are popular in pressure vessels, heat exchangers and custom fabrications. These flanges offer even fluid flow and spread stress uniformly which minimise the chances of failure during high pressure or high temperature conditions. Known for their structural strength and versatility, Long Weld Neck Flanges are widely used in industries such as petrochemicals, shipbuilding, power generation, and offshore platforms. We offer Socket Weld Flanges, which is designed to be easy to weld and durable in pipelines used in industries.
Long Weld Neck Flanges - Materials & Grades Table
| Material Category | Common Grades/Specs | Applications | Key Properties |
|---|---|---|---|
| Carbon Steel | ASTM A105, A350 LF2, A694 F52-F80 | Oil & Gas, General Piping | High strength, cost-effective, low temp service |
| Stainless Steel | ASTM A182 F304/F304L, F316/F316L, F321 | Chemical, Food Processing | Corrosion resistance, weldable |
| Duplex Steel | S31803, S32205 (F51/F60) | Offshore, Marine | High strength, chloride resistance |
| Super Duplex | S32750, S32760 (F53/F55) | Subsea, Aggressive environments | Extreme corrosion resistance |
| Alloy Steel | ASTM A182 F5, F11, F22, F91 | High temp/pressure | Heat resistance up to 600°C |
| Nickel Alloys | Monel 400 (N04400), Inconel 625 | Marine, Acidic chemicals | Seawater/acid corrosion resistance |
| Inconel | Inconel 600, 625, 718 | High temperature | Oxidation resistance >800°C |
| Hastelloy | Hastelloy C276, C22 | Chemical processing | Superior acid resistance |
| Titanium | Gr.2, Gr.5 (Ti-6Al-4V) | Desalination, Aerospace | Lightweight, extreme corrosion resistance |
| Copper Nickel | C70600 (90/10), C71500 (70/30) | Marine cooling systems | Biofouling resistance |
Type of Sub-products
Frequently Asked Questions
Why choose a long weld flange over a standard weld flange?
What materials are used for long weld flanges?
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