Weld Neck Flanges — Dimensions, Grades & Applications

What Is Weld Neck Flange?

As the name recommends, this flange is appended to the pipe by welding neck of flange. This aides in exchanging worry from the flange to the pipe, making it appropriate for high pressure weight applications. The internal width of this pipe flange is made by the pipe’s size.

Weld neck flange is not the same as different sorts of flange as far as having a long tapered hub point and smooth move of thickness in the area of the butt weld interfacing them to the pipe. The long tapered hub point of the weld neck flange gives a critical support of the flange appropriate from the perspective of energy and imperviousness to pressure weight and dishing. The smooth move from the flange thickness to the thickness of pipe wall affected by the taper is very valuable under circumstances of rehashed twisting, bending happen because of line development or other variable strengths, and creates a durable energy of welding neck flange congregations equivalent to that of a butt welded joint among popes, which, in useful way, is indistinguishable as that of an unwelded pipe.

Along these lines, this kind of flange is more reasonable for the majority of the extraordinary administration conditions, regardless of whether this outcomes from hoisted temperature or high weight pressure, and whether stacking circumstances are essentially steady or change between expansive points of confinement; welding flanges are particularly proposed for overseeing explosives, exorbitant and combustible or flammable fluids, where local disappointment or loss of solidness can be come about after a lamentable result or occasion.

Dimensions of weld neck flanges

To the extent the sizes for these flanges are concerned, every one of these flanges are accessible in the market in conveyed measure, going from ¼'’ to any size. On the off chance that we discuss the wall thickness of these flanges, they are from schedule 5s to schedule XXS and are normally heavier.

Presently, how about we see the pressure weight appraisals or ratings and measurements of these flanges? The measurement is ANSI, MSS-SP-44, BS 3294, API 605 150lb to 2500 lb.

The confronting of these flanges is additionally of various styles, including raised faced, large tongue and groove, ring type joint, small tongue and groove, and etc. It is to be noticed that every one of these particulars are not simply standards, but rather can be adjusted and exceptionally presented in the case of any project where customization is required. We significantly stock flanges in standard sizes and materials. For particular needs, don’t hesitate to get in touch with us.

Size- ½ in. to 48 in. (15 NB to 1200 NB)

Pressure Ratings- Class 150 to Class 2500

Coatings Available- Zinc Plated, Yellow Transparent, Oil Black Paint, Anti-Rust Paint

Material & Grades, in which these flanges are available:

1) Stainless Steel Weld Neck Flanges: ASTM/ASME SA 182F GR. 304, 304L, 304H, 304N, 304LN, 316, 316L, 316H, 316N, 316LN, 309L, 310, 317, 317L, 321, 321H, 347, 347H AND UNS 31254 (254SMO)

2) Duplex Steel Weld Neck Flanges: ASTM/ASME SA 182F GR. F44 , F45 , F51 , F53 , F55 , F60 , F61.WERKSTOFF NO. 1.4462

3) Carbon Steel Weld Neck Flanges: ASTM A105 / A350 LF2, ASME SA105, A694 — F42, F46, F52, F60, F65, F70, A36, A516 GR. 70, 60

4) Low Temperature Carbon Steel Weld Neck Flanges: A/SA 350 LF2, LF3

Alloy Steel Weld Neck Flanges: ASTM / ASME A182 F1 / F5 / F9 / F11 / F22 / F91

5) Nickel Alloy Weld Neck Flanges: NICKEL ALLOY 200 (UNS N02200), NICKEL ALLOY 20, MONEL ALLOY 400 (UNS N04400), INCONEL ALLOY 600 (UNS N06600), INCONEL ALLOY 625 (UNS N06625), INCOLOY ALLOY 800 (UNS N08800), INCOLOY ALLOY 800H (UNS N08810), INCOLOY ALLOY 800HT (UNS N08811),INCONEL ALLOY 825 (UNS N08825), ALLOY 20 (UNS N08020), HASTELLOY C-276 (UNS N010276), HASTELLOY C-4 (UNS N06455), HASTELLOY C-22 (UNS N06022), ALLOY 6XN (UNS N08367)


7) Copper Nickel & Cupro Nickel Weld Neck Flanges: UNS NO. C70600 (CU-NI 90/10), C71500 (CU-NI 70/30), C71640

Application/Utilization of Weld Neck Flanges

The application or utilization of neck weld flanges are tremendous and broad over various industries, particularly in those where overwhelming pressure weight and stress are included in the services, for example, Chemicals, Petrochemicals, Power Plants, Nuclear, Water Pipelines, Constructions, Shipbuilding, Refineries, Dairies & Breweries, Food & Beverages, Sugar Mills, Pharmaceuticals, Paper & Pulp Industries, Textiles, Automobiles, Railways and Architectural applications. The broadest utilization of a weld neck flange is seen toward the end of valves, pipes and different type of things which can give diverse effects on the assembly and dismantling of the piping system or framework.

We at Sandco Metal Industries are one of the largest manufacturer, supplier and exporter of Flanges in India and have been manufacturing ASME/ANSI B 16.5 Weld Neck Flanges/WNRF Flanges under ISO 9001:2008 accreditations from last 25 years and we can guarantee our customers to convey and deliver their request without any harm or damage. We have our customers worldwide. We export all our products to all the European countries, Gulf countries, and other countries like Japan, Australia, New Zealand, United States, Canada, South Africa, Brazil, Argentina, Israel, Egypt, etc. We also have high demand in industrial markets all over India. Our major clients are based in cities like Mumbai, Thane, Pune, Hugli, Bangalore, Vishakhapatnam, Gurgaon, Kollam, Raipur, Firozabad, Panipat, Jamshedpur, Kolkata, Hyderabad, Chennai, Surat, Nagpur, and many more.

We also offer

1) Slip on flange

2) Blind flange

3) Socket Weld flange

4) Lap Joint flange

5) Spectacles flange

6) Ring Joint flange

7) Plate/ Flat flange

8) Threaded Flange

9) RTJ Flange

10) Reducing flange

11) Nipo flange

12) Expander flange

13) High Hub flange

14) Groove flange

15) Square flange

16) Orifice flange and more…

Check our entire Flange Category here and Get in touch with us for questions and inquiries on our website http://sandco-stainlesssteelpipes.in