A Socket Weld is a pipe attachment detail in which a pipe is inserted into a recessed area of a Valve, fitting or flange. In contrast to buttweld fittings, Socket Weld fittings are mainly used for small pipe diameters (Small Bore Piping); generally for piping whose nominal diameter is NPS 2 or smaller.
Socket weld (the fillet weld) resists around 1/2 the strength of butt welding. So it is mainly used for small pipeline (Small Bore Piping) with diameters NPS 2 or smaller. Butt weld keeps better strength, good for high pressure or high temperature pipelines.
Socket welding can be used for pipes with small diameters, and it is generally applied to pipes or pipe fittings whose diameters are less than DN50. Butt welding is widely used for pipes with big and small diameters, and threaded welding or socket welding is used for pipes with small diameters.
Socket Weld Full Couplings are used to connect small bore. pipes as a projection of a welding effect on the pipe bore. Both the ends of these Full Couplings are threaded. They are highly demanded in the pipe fitting market.
Prof Crisi, The answer to your question is "NO" because radiographic test can be used on socket welds.
Socket-weld pipe flanges are typically used on smaller sizes of high pressure pipes. These pipe flanges are attached by inserting the pipe into the socket end and applying fillet weld around the top. This allows for a smooth bore and better flow of the fluid or gas inside of the pipe.
There are five basic welding joint types commonly used in the industry, according to the AWS: Butt joint.
Bevelling is the process of preparing metal to be welded, usually by cutting an angled slope on the edge of the metal. In pipe welding bevelling is an integral part of the engineering process. Two pipe ends due to be welded together have their shapes altered by removing some of the metal from each end.
TIG welding is often considered the strongest weld since it produces extreme heat, and the slow cooling rate results in high tensile strength and ductility. MIG is also an excellent candidate for the strongest type of weld because it can create a strong joint.
Every ASME Code (e.g. ASME I, VIII, B31. 1, etc.) requires that a socket weld have a 1/16 inch gap between the bottom of the socket and the end of the inserted tube/pipe before welding. This gap is to provide some cushion to allow weld shrinkage without inducing significant residual stress.
Pipe welding uses arc welding techniques, including shielded metal arc welding (SMAW), gas metal arc welding (GMAW) – including both MIG and MAG welding, flux-cored arc welding (FCAW), submerged arc welding, and tungsten inert gas (TIG) welding.
Fillet welds are frequently used in automatic welding situations. The complexity of groove welds make them more difficult to automate than fillet welds. Since fillet welds do not require extensive joint preparation and they are easier to automate than groove welds, they are preferred for many applications.
A circumferential weld is a type of weld that is used to join two round objects around their circumference. A circumferential weld can be carried out by many different types of welding processes, and a variety of material diameters and material types can be joined together by a circumferential weld.
If the weld is between the two workpieces, it is a groove weld. If the weld is beside the two workpieces, it is a fillet weld. Groove welds extend through the thickness of at least one of the workpieces.
TIG welding produces the strongest type of weld.
Aluminum is a nightmare for welders. It is considered the most difficult metal to weld, because, in its ore or alloy form, it has various physical and chemical properties that need to be understood in detail before working on it.
Socket Weld flanges were initially developed for use on small-size high pressure piping. Their static strength is equal to Slip On flanges, but their fatigue strength 50% greater than double-welded Slip On flanges. The connection with the pipe is done with 1 fillet weld, at the outside of the flange.
Socket welded flange shape is similar to slip on flange, differently it has a shoulder at the inner bore. Slip On Flange - No shoulder at inner bore. Socket weld flange static strength is equal to slip on flange, but it's fatigue strength is 50% higher than the double welded slip on flange.
Socket Weld Flanges are available in pressure from 150# and up and pipe schedule 40 to schedule 160. Specifying the pipe schedule ensures that ID of the SW Flange matches the ID of pipe for smooth fluid flow.
Latrolet is a type of self-reinforced branch fitting developed by a Company called Bonney Forge. Latrolet that is used for taking branch which is not at 90 degrees to run pipe. Latrolet comes in 45°or any other special degree as required by the purchaser.
The average salary of a pipeline welder is $ 28.50 per hour or $44,722 per year in the US. The starting salary for a pipe welder is around $34,000 per year. Most experienced pipeline welders earn $ 57,000 and above depending on the salary range.
Certified Welding Supervisor certification (CWS)
This is the highest certification available to welding professionals. CWS certifications are recommended for those who have reached managerial positions in the field.