F304 F304L F316 F316L 31803 32750 Stainless Flange
F304 F304L F316 F316L 31803 32750 Stainless Flange
Weld Neck Flanges are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting.
The long tapered hub provides an important reinforcement for use in several applications involving high pressure, sub-zero and / or elevated temperatures. The smooth transition from weld neck flange thickness to pipe or fitting wall thickness effected by the taper is extremely beneficial, under conditions of repeated bending, caused by line expansion or other variable forces.
Weld Neck Flanges are bored to match the inside diameter of the mating pipe or fitting so there will be no restriction of product flow. This prevents turbulence at the joint and reduces erosion. They also provide excellent stress distribution through the tapered hub and are easily radiographed for flaw detection.
The flange type will be welded to a pipe or fitting with a single full penetration, V weld (Buttweld).
Product Details
| Standard | ANSI/ ASME B 16.5 | |
| Type | weld neck flange | |
| Dimension | 1/2” NB TO 24” NB | |
| Wall thickness | SCH 5s 10s 20s 30s 40s 80s 160s XXS | |
| Material: | Duplex steel | A182 F51, UNS 31803/2205 |
| Stainless steel | 304/304L 316/316L | |
| Alloy steel: | A182 F1/ F5/ F9/ F11, F22 | |
| Carbon steel | A105, A181 | |
| Copper nickel | 90/30, 70/30 | |
| Titanium alloy | Gr2, Gr3, Gr5 | |
| Pressure rate | 150 PSI 300 PSI 400 PSI 600 PSI 900 PSI 1500 PSI 2500 PSI |
weld neck flange |
| Application: | Shipbuilding &Marine industry, Oil &gas industry, On/Off shore. | |
| Surface treatment | Anit-oil, epoxy zinc rich primer(transparent/yellow/black), hot dipped galvanized and cold galvanized | |
| Certificate | ISO9001:2008, CR, CCS,RS,BV,NK,RINA,LR,ABS,DNV,GL,TUV | |
Our advantage
Our overall process of F304 F304L F316 F316L 31803 32750 Stainless Steel Flange Socket Weld Slip on/Weld Neck/Plate Flange/Blind Flange has reached the world's advanced level, thus the development of related industries will be promoted. We are a company that integrates R&D, production, sales, and service in a cross-regional operation. We strive to become a brand with first-class management, excellent quality and honest service.
