What is a Socket weld flange?
Pipe flanges that are inserted into the pipe through the socket end, and then a fillet weld is applied around the top for proper attachment, is known as a Socket weld flange. They are typically used in small-sized pipes that deal with high pressure. The construction of the Socket Weld Pipe Flanges allow for a smooth bore and better fluid or gas flow inside the pipe. These flanges are available in different material grades, specifications, and sizes. Clients can also get Socket Weld Raised Face Flange, flat face or RTJ face flanges. They generally come with a good fatigue strength.
Socket Weld Flange dimensions, weight chart, standard, material, and specification

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What are the advantages and disadvantages of ASME B16.5 SWRF Flanges
The benefits of Asme B16.5 Swrf Flanges are:
- Their design enables easy and proper alignment.
- They are less prone to leakage
- As welding is done outside, there is no chance of the weld metal to flow inside the pipe bore.
A significant disadvantage of the Alloy Steel Swrf Flange is that they are not considered to be a high integrity joint as the weld is quite difficult to prove. They are only suitable for low to medium classes.
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How to identify socket weld flange?
A Stainless Steel Socket weld flange is a pipe attachment detail that comes with a socket and counter bore.
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How strong are Sae Socket weld flange?
The Sae Socket weld flange shows high pressure resistance for most sizes. It has a continuous pressure resistance for up to the level of 6000 PSI. It can resist a working pressure of up to 400 bar.
Various types of socket weld flange
Alloy steel socket weld flange
ASTM A182 F304 sw flange
Duplex steel socket weld pipe flanges
Stainless steel socket weld flange
ASTM A105 socket weld raised face flange
ASME B16.5 reducing socket weld flanges
Carbon steel socket weld flange
ASTM A182 F316 rf sw flange
Super duplex flat face socket weld flange
Socket weld orifice flanges
SAE socket weld flange
SS socket weld flanges
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How we can check the strength of SWRF Flanges before purchasing the material ?
To understand the strength of Carbon Steel Socket weld flange before purchasing, one should check its pressure class and size.
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Does A350 Lf2 Sw Flanges crack?
The A350 Lf2 Sw Flanges need a gap of around ⅙ inches at the bottom of the pipe which will allow socket access and thermal expansion. But sometimes, the gap can lead to the problem of over stress which might crack the filet weld of the fitting.