How to Weld Pipe Fence? What is the Process?

Pipe welding is a technique for connecting two pipes. Arc welding procedures such as MIG welding and TIG welding are commonly used for pipe welding.

Welding pipe fence requires several aspects and steps. And if you don’t know how to weld pipe fence, read the article to gather all the necessary information about this matter. 

Weld a Pipe fence: What is the Process? 

Welding is fundamental to the oil and gas fields. In comparison to the development of many branches, welding is significantly more difficult than expected. 

Many aspects are essential for suitable welding, including weld quality, weld strength, material, and steps. But, in this article, we’ll discuss a few requirements and steps of the welding procedure. And those are welding processes and welding passes.

The Necessity of Welding Pass

Welding passes refer to the flow of the welding process or the order in which welding should be done. These are the sequences of welding.

Mainly, there’re four passes in a typical welding operation. The four basic pass principles are root Pass, Hot Pass, fill pass, and capping.

Four of them have different sequences, and the following passes strengthen the weld with the appropriate thickness by providing the required durability.

How to Weld Pipe Fence? Step by Step

Pipe fences are relatively common in this area, and they’re usually made of what’s known as “oil field pipe,” which is usually 2-3/8 inch pipe. They can be either used or fresh.

To weld a pipe fence, you’ve to get the right welder for pipe fence. Once you’ve it, a few steps need to be taken, such as:

Step 1: Select Pipes and Sand Them 

Steel pipes are mainly used to construct pipe fences. Factory rejects of old rusted pipes are highly preferred over new pipes. Moreover, old pipes require less money. 

To prepare them completely, sand them as much as possible to remove rust. Avoid using it over rusty pipes; otherwise, it will create difficulty during coating. 

Use at least a 4-inch pipe for welding. For crowded locations, use the thick fence.

Step 2- Fix Up Fences

A posthole digger is used to drill holes for the posts. The depth of the hole should be at least a third of the finished height. To build a 4-foot fence, a 6-foot post would require a 2-foot hole. 

If possible, secure posts with concrete. But in rural areas, they utilize sand, accessible rock, or even existing dirt. Tighten the material around the post. It should be spaced 10 feet apart or the length of the pipe that is used for rails. 

Having the correct amount of energy for the welding is essential for good finishing. So, pipeline welders should remember that the welding fence pipe must be well fitted into the hole. 

Step 3: The Final Touch Up 

Use a portable welding setup to add rails. Mark the rail placements on all posts first. Usually, one is set at the top, and another is used to place about a foot above the ground level, and the other fences will fit in between. 

Then weld at the rails in place first, next return to tightly weld around the pipe.

Some Pro Tips for New Pipeline Welders

Focusing on a few main factors in the pipe welding process can help solve some challenges. In particular, pipe shops and field operations try to train new welders about the process of welding pipe fences.

First of all, while working with thermal materials like stainless steel, it’s more important to observe that a poor cut might provide a poor fit-up and unwanted gaps. So they should focus on cutting the corner of the pipe. 

Secondly, workers can utilize plasma or oxy-fuel cutting to prepare steel for welding. These methods leave an oxide layer on the cut edge, which should remove before welding.

Thirdly, selecting the right driving roll for the wire being utilized is necessary. A welder can use Solid wires with regular V drive rolls, and flux-cored wires should be used with knurled drive rolls. And, U-groove drive rolls can be utilized when employing copper-coated flux-cored wire.

And lastly, another significant factor in selecting the proper nozzle size for the task is. For example, with the RMD process, a tapered nozzle and tapered tip are required, but a tapered nozzle cannot satisfy the gas flow requirements of pulsed MIG and may result in inadequate gas coverage.

Make sure you know which nozzles go with which processes.

FAQs

Is pipe welding difficult?

Pipe welding, in particular, can be a bit more difficult for some welders. With the diameter of the pipe, the travel angle also changes. 

How long does pipe welding take?

It would take half an hour to install and position the pipe and even longer to tack seams.

How much does a pipe fence set you back?

The pipe fencing cost starts from $10 to $15 per foot. A timber fence costs $12 to $17 per foot to build, whereas a vinyl fence costs $14 to $28 per foot, and materials will cost between $2 and $20 per foot. However, installation costs will increase by $2 to $6 per foot if using extra.

Bottom Line 

To conclude, by following the proper steps, anyone can learn how to weld a pipe fence. But preparing the material and selecting the appropriate shielding gas and equipment are also important if you depend on a pipeline welder. 

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