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JF Engineering Products LLP

Wn | Weld Neck Flange Manufacturers & Suppliers

Stainless Steel Weld Neck Flange, A105 Carbon Steel Weld Neck Flange Dimensions, Check Price List Of API 6A WNRF Flange In India,Long Weld Neck Flange Manufacturers, Carbon Steel Weld Neck Flange Suppliers India, View Raised Face Weld Neck Flange In Pn16.

Jfeindia is a supplier and manufacturer of Wn flanges fro mumbai, India. Where high pressure is required, Weld Neck Flanges is used. These tubes are attached to the neck of the flange by welding the pipe. It helps to lower tension levels from the center's foundation. In various requirements, grade, material, and scale, JF Engineering provide the best weld neck flanges with a hub. These flanges are used in applications with high-pressure factor, with a broad tempered core. It is essential to define the schedule pipe for the ordering of the soldering wn flange.

The inner diameter of the flange matches the inner diameter of the drain. This duplex stainless steel Weld Neck flange with the tube is very resistant to drifting and very strong to the butt-weld joints and the tapered hub. Stainless Steel Weld Neck Flange is an excellent tool used in extreme temperature variations and situations where flanges can be bent and treated extensively. The boron is mechanized to co-ordinate the pipe ID or mounting of the weld collar. This allows the soldering neck to travel smoothly and prevents turbulence. It helps to spread tapered neck tension.

Two designs are made of a carbon steel Weld Neck flange. The API 6A Weld neck flange standard type is used for pipes, while the Weld Neck flange is unsuitable for tubes in long type steel alloy. Therefore, in process plants, this Weld Neck Flange Asme B16.5 is used. Weld Neck Flange is perfect for use in hostile conditions because it can withstand intense temperature, pressure, or other stress sources.

The flanges of these tubes are connected to the neck of the flange by welding the shaft. Instead, this step helps to move tension from the flange to the tubing. The concentration of stress from the hub foundation is also significantly reduced. Weld neck flanges are also used for high-pressure applications. The internal diameter of the flange is needed for the inside diameter of the pipe. Welded neck pipes of a hub are protected by published requirements from 1/2 "to 96" sizes.

The Stainless Steel Weld neck Flange maker typically has three faces with the Weld Neck Flange Jis 5k. It is-a flat face, an uplifting face, or RTJ. For Weld Neck Flange Jis 16k, when the average height is 1/16 of an inch for a weld neck pipe flanges below 400 #, a Weld Neck Flange Raised Face is required. The standard Weld Neck Flange A105 needs a raised face height of 1/4 "for weld neck tubes of 400 # and above.

The Weld Neck Flange Asme B16.5 Class 300 Specification standard includes all Steel Pipe flanges, including Flanged Fittings from NPS 1/2 up to NPS 24 metric/inch and is included in a pressure range from class 150. These Weld Neck flange Din en 1092-1, the pressure ratings, tolerance levels, labeling, and checking, as per Weld Neck Flange Jis 10k. The-weld neck flanges and blind flanges are two very significant flanges that are commonly used in piping systems. The standard for specification ASME B16 5 (ANSI B16 5) only covers flanges up to just 24 inches. Five or B16 5 interchangeability (both are referenced to the same standard).

Specification - ASME B16.5 Weld Neck Flange

Weld Neck Flange

Size: 1/2"NB TO 24"NB IN
Class: 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6,10, 16, 25, 40 Etc.
Materials: Monel :
Grade: Monel 400, Monel K500, Monel R-405
Nickel :
Grade: Nickel 200, Nickel 201
Inconel :
Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718
Incoloy :
Grade: Incoloy 800, Inconel 800H, 800HT
Hastalloy :
Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X
Titanium :
Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11
Stainless Steel :
Grade: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Carbon Steel :
Grade: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
Duplex Steel:
Grade: ASTM / ASME A/SA 182 UNS F44, F45, F51, F53, F55, F60, F61
Alloy Steel:
Grade : ASTM A182 F1, F5, F9, F11, F22, F91
Value Added Service: CNC Machine, Customized Flanges
Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Dimension - ASME B16.5 Weld Neck Flange

NPS 1/2 - O.D. 21.3

CL 150 300 600 900 1500 2500
30 38 38 38 38 43
90 95 95 120 120 135
9.6 12.7 14.3 22.3 22.3 30.2
11.2 14.3 20.7 28.7 28.7 36.6
35.1 35.1 35.1 35.1 35.1 35.1
60.3 66.7 66.7 82.6 82.6 88.9
H 46 51 52 60 60 73
47.6 52.6 58.4 66.4 66.4 79.4
4 4 4 4 4 4
15.9 15.9 15.9 22.2 22.2 22.2
Stud Bolts Diameter x Length
1/2 1/2 1/2 3/4 3/4 3/4
55 65 75 110 110 120
Other Diameters
NPS 1/2 3/4 1 2
3 4 5 6 8 10
12 14 16 18 20 24  


  • Dimensions are in millimeters unless otherwise indicated.
  • The length of the Stud Bolt does not include the height of the chamfers (points).
  • ID = Depending on the wall thickness of the pipe, must be specified by the purchaser.

Marking and Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All flanges are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.

Quality Assurance

At JF Engineering Products LLP, all fittings and flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity 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 conformity of products.

Test Certificates

Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report

Shipping Policy

Delivery time and delivery dates are based on the "type and quantity" of steel ordered. Our sales team will provide a delivery schedule when quoting to you. On rare occasions the delivery schedule may change so please check with our sales department when placing any orders.

Orders will be sent out within 2-3 business days, and may take up to 5-10 business days in transit. If Flange is out of stock, orders may take up to 2-4 weeks to ship. JF Engineering Products LLP will notify buyer if this situation occurs..

Uses & Application

JF Engineering Products LLP take immensure pleasure in introducing itself as one of the leading Manufacturer & Exporter of high quality ASME B16.5 Weld Neck Flange to meet the customer ultimate requirements in the fields of:

Chemical Oil Mills Petrochemical Mining Refineries Construction
Fertilizers Shipbuilding Power Plant Steel Plant Nuclear Power Offshore
Oil & Gas Defence Paper Ports Breweries Railway
Cement Engineering Co. Sugar & Government Org. etc.

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