What is a Weld Neck Flange?
A tapered hub or high-hub flanges is a type of flange that helps in the stress relocation to the pipes. The Weld Neck Flanges ensures that there is a decrease in concentration at the bottom of the flanges. There are two types of Wn Flange designs- while one is used with a wipe, the other is a longer one which cannot be used with a pipe but with a process plant. The Weldneck Flanges comes with a round fitting which extends beyond the rim of the circumference. They are actually manufactured from forgings that are welded to the pipes. The rim has several holes drilled into it which enables the Weld Neck Pipe Flanges to get attached to the bolted flanges. There are long 12 Weld Neck Flanges which looks very typical but comes with an elongated neck. The reducing Weld Flange Types have a reducing diameter so that it can weld to smaller diameter pipes quite easily.
Weld Neck Flange dimensions, weight chart, standard, material, and specification

Stainless steel weld neck flange suppliers in UAE
Is Stainless Weld Neck Flange corrosion resistant?
The Stainless Steel Welded Flanges is corrosion resistant as most of the stainless steel grades can withstand corrosion. For example, if the flange is made of 316 grade ss, it will resist corrosion better than grade 304, but both are not getting rust.
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How do you test a Weldneck Flange?
A number of tests can be performed on the Asme B16.5 Pn16 Wnrf Flanges, like:
- Tension test
- Yield point test
- Bending test
- Impact test
- Radiography test
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How to calculate ANSI B16.5 SS WNRF Flanges weight?
A number of information are needed while calculating the weight of the Ansi B16.5 Weld Neck Flanges, like:
- Its inner and outer diameters
- The sheet thickness
- The number of drill holes
- The diameter of the drill holes
Weld neck flange types
Stainless steel weld neck flange
Carbon steel weld neck flange
ASTM A182 f304 weld neck pipe flanges
Super duplex raised face wn flanges
Duplex steel welding neck flange
Alloy steel welded flanges
ASME B16.5 wnrf flange
SS weld neck flanges
ASTM A105 weld neck flange
ASTM A182 F316 wn flanges
Inconel weld neck raised flange
ASTM A350 lf2 welding neck flange
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What are the advantages and disadvantages of Stainless Steel Welded Flange?
The common benefits of Ss Weld Neck Flanges are:
- They are resistant to corrosion
- They can resist fire and heat
- They show good impact resistance and have good strength
- They are sustainable and have high long term value
- The primary disadvantages of the Stainless Weld Neck Flange lies in its expensive cost and the fact that it is sometimes prone to leakage if not radiographed properly.
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Where are Wnrf Flange used?
The Wnrf Flange is mostly used in applications where the situation is severe and critical. This will include conditions like high temperature, fluctuating temperatures, subzero or high temperatures, hazardous fluids, etc.