Naysha Steel and Alloys is the very best manufacturer and also exporter of weld neck flanges in the UAE due to its dedication to the quality. We offer an extensive range of flange products including stainless steel, carbon steel, copper, and hastelloy variants to address the requirements of the different industries like oil, gas, petrochemicals, and marine operations. Naysha Steel and Alloys knows very well that the weld neck flanges are very essential for safe and also reliable connections in the complicated systems. Therefore, Our flanges are designed with precision, using the latest tools and technologies to produce the precise, accurate, and also durable products. The weld neck flanges are the very necessary part of the pipe systems that make the strong connections which do not leak. The flanges are available in many different sizes depending on the needs of many businesses and the long or short neck shape provides the additional support and strength to the pipes it connects. The long neck shape reduces stress at the many points where materials are connected, reduces the possibility of weak points, and also facilitates connecting things such as pipes and valves. Our stainless steel weld neck flanges are crafted with great precision, using the quality materials to make sure they perform superbly. In small sizes, weld neck flanges have a particular characteristic with small holes at the the top side. This design not only ensures that the flange is strong as a whole but also provides a very specific solution in cases where there is little space or critical design details.
In the pipe fittings systems, a vital component, the weld neck flange, is one of the most important components. These flanges are welded onto the end of a pipe to provide a sturdy and watertight connections. They are especially valuable in the industries that work in harsh environments, namely, oil and gas companies, chemical plants and power plants. The weld neck flanges are very special in that they have a long or short neck that provides a lot of added support to the pipes that they connect. We have become a main name in the industry due to our dedication to the quality and innovation. Our ability to formulate long-lasting and corrosion-resistant flanges covers a very wide range of industrial uses. The products we offer are carefully designed to conform to the standards of the industry and their sizes and configurations cover a wide variety of applications in the oil and gas, petrochemicals, and also the construction industries. We can be trusted to provide you with quality flange solutions that are tailor-made to your own unique requirements.
Stainless Steel Weld Neck Flanges:Benefits:
The stainless steel weld neck flanges are associated with so many advantages as compared to the other types of flanges. Take a look for the key benefits of stainless steel weld neck flanges.
ASME B16.5 is a standard used commonly for the pipe flanges and also flanged fittings. It encompasses the flange design pressure-temperature ratings, materials, dimensions, tolerances, marking, testing, and ways of designating the openings for pipe flanges and flanged fittings. Butt welding is a method of joining the weld neck flanges to a piping system; weld neck flanges are one of the most common types of flanges. They are used in the high-pressure settings and are ideal for the very high and also low temperatures. Two common pressure ratings for the weld neck flanges are ANSI 150# and also ANSI 300#. The number represents the highest pressure in pounds per square inch the flange can withstand at the specified temperature.
Weld neck flanges are manufactured using materials such as Stainless Steel Class 304 and also Stainless Steel 316, which are the most common types of stainless steel. Stainless steel is chosen for its resistance to the corrosion and its longevity. Naysha Steel and Alloys manufactures ASME B16.5 weld neck flanges, including the ANSI 150# and also the ANSI 300# options. These flanges are carefully made and they meet the highest quality standards. Naysha Steel and Alloys also provides stainless steel Class 304 and Class 316 weld neck flanges, which are also available in United Arab Emirates (UAE) to meet the needs of the customers.
Nominal Size | Outside Diameter (OD) |
Min. Thickness (T) |
RF Dia. (R) |
No. of Bolt Holes | Diameter of Holes | Bolt Circle (BC) |
SO Bore ID (SB) |
WN Bore ID (WB) |
Dia. Hub Base (HB) |
Dia. of Hub Top (HT) |
SO LTH (SL) |
WN LTH (WL) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1⁄2 | 3.50 | 0.38 | 1.38 | 4 | 0.62 | 2.38 | 0.88 | 0.62 | 1.19 | 0.84 | 0.56 | 1.81 |
3⁄4 | 3.88 | 0.44 | 1.69 | 4 | 0.62 | 2.75 | 1.09 | 0.82 | 1.50 | 1.05 | 0.56 | 2.00 |
1 | 4.25 | 0.50 | 2.00 | 4 | 0.62 | 3.12 | 1.36 | 1.05 | 1.94 | 1.32 | 0.62 | 2.12 |
11⁄4 | 4.62 | 0.56 | 2.50 | 4 | 0.62 | 3.50 | 1.70 | 1.38 | 2.31 | 1.66 | 0.75 | 2.19 |
11⁄2 | 5.00 | 0.62 | 2.88 | 4 | 0.62 | 3.88 | 1.95 | 1.61 | 2.56 | 1.90 | 0.81 | 2.38 |
2 | 6.00 | 0.69 | 3.62 | 4 | 0.75 | 4.75 | 2.44 | 2.07 | 3.06 | 2.38 | 0.94 | 2.44 |
21⁄2 | 7.00 | 0.81 | 4.12 | 4 | 0.75 | 5.50 | 2.94 | 2.47 | 3.56 | 2.88 | 1.06 | 2.69 |
3 | 7.50 | 0.88 | 5.00 | 4 | 0.75 | 6.00 | 3.57 | 3.07 | 4.25 | 3.50 | 1.12 | 2.69 |
31⁄2 | 8.50 | 0.88 | 5.50 | 8 | 0.75 | 7.00 | 4.07 | 3.55 | 4.81 | 4.00 | 1.19 | 2.75 |
4 | 9.00 | 0.88 | 6.19 | 8 | 0.75 | 7.50 | 4.57 | 4.03 | 5.31 | 4.50 | 1.25 | 2.94 |
5 | 10.00 | 0.88 | 7.31 | 8 | 0.88 | 8.50 | 5.66 | 5.05 | 6.44 | 5.56 | 1.38 | 3.44 |
6 | 11.00 | 0.94 | 8.50 | 8 | 0.88 | 9.50 | 6.72 | 6.07 | 7.56 | 6.63 | 1.50 | 3.44 |
8 | 13.50 | 1.06 | 10.62 | 8 | 0.88 | 11.75 | 8.72 | 7.98 | 9.69 | 8.63 | 1.69 | 3.94 |
10 | 16.00 | 1.12 | 12.75 | 12 | 1.00 | 14.25 | 10.88 | 10.02 | 12.00 | 10.75 | 1.88 | 3.94 |
12 | 19.00 | 1.19 | 15.00 | 12 | 1.00 | 17.00 | 12.88 | 12.00 | 14.38 | 12.75 | 2.12 | 4.44 |
14 | 21.00 | 1.31 | 16.25 | 12 | 1.12 | 18.75 | 14.14 | 13.25 | 15.75 | 14.00 | 2.19 | 4.94 |
16 | 23.50 | 1.38 | 18.50 | 16 | 1.12 | 21.25 | 16.16 | 15.25 | 18.00 | 16.00 | 2.44 | 4.94 |
18 | 25.00 | 1.50 | 21.00 | 16 | 1.25 | 22.75 | 18.18 | 17.25 | 19.88 | 18.00 | 2.62 | 5.44 |
20 | 27.50 | 1.62 | 23.00 | 20 | 1.25 | 25.00 | 20.20 | 19.25 | 22.00 | 20.00 | 2.81 | 5.62 |
22 | 29.50 | 1.75 | 25.25 | 20 | 1.38 | 27.25 | 22.22 | 21.25 | 24.25 | 22.00 | 3.07 | 5.82 |
24 | 32.00 | 1.81 | 27.25 | 20 | 1.38 | 29.50 | 24.25 | 23.25 | 26.12 | 24.00 | 3.19 | 5.94 |
Naysha Steel and Alloys, one of the leading suppliers of industrial piping materials in the UAE, provides a wide variety of ASME B16.5, SS 304 and SS 316, ANSI Class 150 and ANSI 300# Weld Neck Flanges to meet the needs of the different industries. We have become the partner of choice for many clients in the region, thanks to our dedication to the quality, reliability, and the customer satisfaction. The raised face design of weld neck flanges will help to concentrate the pressure on a smaller area which will in turn make them more efficient in higher pressure applications. The weld neck design, which supports the pipes under welding in order to provide space for bolts as well as nuts, ensures a durable connection.
Our ASME B16.5 Weld Neck Flanges are made from superior stainless steel grades like SS 304 and SS 316 providing strength, resilience, and a longer lifespan. They have high-pressure and temperature resistance, which makes them very suitable for the applications in the oil and gas, petrochemical, power generation, and other harsh environments.
Naysha Steel and Alloys stocks an extensive range of ASME B16.5 Weld Neck Flanges in ANSI Class 150 and ANSI 300# ratings, which allows us to meet the immediate needs of the project in time. Our flanges come in different sizes, pressure ratings, and also configurations to suit the requirements of our clients. We also provide tailored solutions and also value-added services including cutting, drilling, and also coating that provide a perfect fit as well as superior performance for your piping systems.
Weld Neck Flange is a flange that is typically gets welded on the end of a pipe. It is a cylindrical hub, neck, and also a flange face. The hub is inserted into the end of the pipe and is welded in place, and the neck protrudes from the hub and also serves as an attachment point for the flange face. The flange face is the planar surface of the flange that faces against another flange to achieve a joint that is sealed. The dimensions of a Weld Neck Flange are very crucial in ensuring a good fit and also performance. The following diagram illustrates the key dimensions of a Weld Neck Flange:
In general-use industries like food processing, chemical processing, and also water treatment, SS 304 weld neck flanges are an appropriate option because of their high corrosion resistance, formability, and also weldability. In environments with higher levels of corrosion, especially those involving chlorides, the SS 316 weld neck flanges have a better corrosion resistance. In cases involving welding, the SS 316L weld neck flanges are recommended because of their low carbon content that minimizes the risk of carbide precipitation. The SS 410 weld neck flanges are mostly used in the applications that demand high strength and wear resistance, for instance in the mining and construction equipment. In applications involving highly corrosive environments such as chemical processing and also offshore oil and gas industries, SS 904L weld neck flanges offer superior corrosion protection.
The choice of the right stainless steel grade for a weld neck flange is an very important decision that can be based upon several factors which may include, operating environment conditions such as temperature and pressure among others alongside specific application requirements. It is, therefore, recommended to work with an experienced supplier or engineer in order to choose the best stainless steel grade for a given project considering all factors that should be taken into account so as to achieve optimum performance and durability of weld neck flange.
Grade/ Marked Symbol | Carbon (Max) | Manganese (max) | Silicon (maximum) | Phosphorus (max) | Sulfur (max) | Chromium | Molybdenum | Nickel | N |
---|---|---|---|---|---|---|---|---|---|
F304 | 0.08 | 2 | 0.75 | 0.045 | 0.030 | 18-2018> | - | 8-118> | - |
F304L | 0.035 | 2 | 1.00 | 0.045 | 0.030 | 18-2018> | - | 8-138> | - |
F316 | 0.08 | 2 | 0.75 | 0.045 | 0.030 | 16-1816> | 2-3 | 10-14 | 64.845 |
F316L | 0.035 | 2 | 1.00 | 0.045 | 0.030 | 16-18 | 2-3 | 10-14 | 68.89 |
Take a look on price list of stainless steel and weld neck flanges in UAE
WNRF FLANGES ASTM A182 F304 B16.5 150# SCH-40S Price | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Size | Aprox. Wt/Unit | FOB INR | CIF INR | FOB USD | CIF USD | FOB STGP | CIF STGP | FOB EURO$ | CIF EURO$ | ||
15mm | 0.54 | 543.95 | 591.25 | 8.242 | 8.958 | 5.551 | 6.033 | 9.890 | 10.750 | ||
20mm | 0.78 | 854.45 | 928.75 | 12.946 | 14.072 | 8.719 | 9.477 | 15.535 | 16.886 | ||
25mm | 1.12 | 1009.70 | 1097.50 | 15.298 | 16.629 | 10.303 | 11.199 | 18.358 | 19.955 | ||
32mm | 1.47 | 1179.90 | 1282.50 | 17.877 | 19.432 | 12.040 | 13.087 | 21.453 | 23.318 | ||
40mm | 1.90 | 1475.45 | 1603.75 | 22.355 | 24.299 | 15.056 | 16.365 | 26.826 | 29.159 | ||
50mm | 2.77 | 1707.75 | 1856.25 | 25.875 | 28.125 | 17.426 | 18.941 | 31.050 | 33.750 | ||
65mm | 4.49 | 2717.45 | 2953.75 | 41.173 | 44.754 | 27.729 | 30.140 | 49.408 | 53.705 | ||
80MM | 5.44 | 3105.00 | 3375.00 | 47.045 | 51.136 | 31.684 | 34.439 | 56.455 | 61.364 | ||
100mm | 7.69 | 4347.00 | 4725.00 | 65.864 | 71.591 | 44.357 | 48.214 | 79.036 | 85.909 | ||
125mm | 9.40 | 7452.00 | 8100.00 | 112.909 | 122.727 | 76.041 | 82.653 | 135.491 | 147.273 | ||
150mm | 11.82 | 9315.00 | 10125.00 | 141.136 | 153.409 | 95.051 | 103.316 | 169.364 | 184.091 | ||
200mm | 19.11 | 13972.50 | 15187.50 | 211.705 | 230.114 | 142.577 | 154.974 | 254.045 | 276.136 | ||
250mm | 26.19 | 18630.00 | 20250.00 | 282.273 | 306.818 | 190.102 | 206.633 | 338.727 | 368.182 |
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Specification Of : | Weld Neck Stainless Steel Flanges |
---|---|
JIS Standards | 5K, 10K, 40K, 16K 20K 30K, 63K |
Size Of Bore Diameter Flange | NPS ≤ 10 |
Manufacturer Of Standard Dimensions | EN-1092 Flange, ASME B16.48 Flange, API605 Flange, BS4504 Flange, EN1092 Flange, UNI Flange, ISO Flange, API7S-43 Flange, ANSI/ASME B16.5 Flange, API7S-15 Flange, MSS S44 Flange, IS 2062 Flange, ASME B16.36 Flange, DIN Flange, AWWA C207 Flange, B16.47 Series A & B Flange, BS1560-3.1 Flange, ISO70051 Flange, API Flange, ASME Code for 12 inches Welding Neck Flanges. |
Minimum Pressure | 150# To 2500# |
Flange Face Type | Raised Face, Groove And Small Tongue Groove, RTJ, Weld Neck Flanges Flat Face, Large Tongue & Large Male-Female And Small Male-Female, Lap-Joint Face. |
Top Six Type Of Flanges | Threaded, Lap Joint, Socket-Weld, Blind, Slip-On or Weld Neck Flanges |
Standard Materials | Duplex Steel & Super Duplex Steel, Copper Nickel, Wrought Iron, Inconel, Mild Steel, Stainless Steel, Hastelloy, Cast Iron, Alloy Steel, Carbon Steel. |
Thickness Length | NPS ≤ 18 |
Welding neck flanges size | (1/2") To (48") |
Manufacturing Process | Forged/ Machined/ Heat Treated |
Other Type Of Flange | Forged/ Plate/ Threaded |
Application | Oil And Gas Industry Power Plants Industry Food Processing And Manufacturing Waterworks Systems Fossil Fuel Power Plants Nuclear Power Application Municipal Pipe Systems |
A stainless steel weldneck flange is a type of pipe flange designed to be welded onto the neck of a pipe. It provides a smooth, high-strength connection for joining pipes, valves, and other equipment. All the standard Flange dimensional sizes are Readily available at any Naysha Steel branch in UAE.
Common stainless steel materials include 304, 316, and 321, among others. The choice of stainless steel grade depends on the specific application and the required corrosion resistance.
Stainless steel weldneck flanges are available in a wide range of sizes, typically ranging from 1/2 inch to several feet in diameter. The size you need depends on your specific piping system requirements. All the standard Flange dimensional sizes are Readily available at any Naysha Steel branch in UAE.
Yes, stainless steel weldneck flanges can be used with pipes made of other materials, provided the flange material is compatible with the pipe material, and the connection is properly sealed.
In the oil and gas industry, blind Alloy Steel flanges are used in pipelines, storage tanks, and offshore platforms. They are employed for closing off openings during maintenance, repair, or when a branch connection is not required. Petrochemical plants utilize blind Alloy Steel flanges in equipment such as reactors, distillation columns, and storage vessels. These flanges provide a secure and leak-proof seal when closing off unused openings or isolating sections of the process.
The oil and gas industry includes a wide range of from drilling and production to refining and marketing. Some of the major players in this include oil and gas companies, service providers, equipment.
In the drilling process, stainless steel is used to make drill bits, pipes, and other equipment that must withstand high pressures and temperatures. Stainless steel is also used to make pumps, valves, and fittings for the transportation.
In storage applications, stainless steel is used to make tanks and containers that can safely store corrosive and hazardous chemicals. It is also used in piping systems for chemical transfer and distribution chemical industry.
Products are packaged to ensure that there is no damage during of goods transport. In case of exports, standard export packaging is done with utmost care in wooden covering or boxing. All products are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make customized marking on our products.
At Naysha Steel, all fittings and flanges are subject to strict inspection at each and every stage of the production process, from starting material purchasing to product dispatch. They are visually examined for compliance to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality compliance of products.
Test Certificates: Manufacturer Test Certificate as per EN 10204 / 3.1B Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report