2F Welding Position Explained

Written By: Liam Bryant

The 2F welding position refers to a horizontal fillet weld, where the welder lays a bead in a horizontal plane along a joint on a flat metal plate or pipe, typically used in structures requiring enhanced strength.

welding positions

What is 2F Welding Position

The world of welding is packed with different techniques and positions, all having their specific uses and challenges. Today, I’d like to zoom in on one position that holds a vital place in the welder’s toolbox – the 2F welding position.

So what exactly is the 2F welding position? To put it simply, the “2” in 2F denotes the position, in this case, horizontal, while the “F” stands for ‘fillet,’ which refers to the type of weld. Hence, the 2F welding position signifies a horizontal fillet weld. In this position, the metal plate or pipe is placed in such a way that the welder performs the welding operation in a horizontal plane.

The 2F welding position might seem simple at a glance, but it requires a good deal of skill, experience, and control, especially when working on larger fillet welds.

Where Do You Use 2F Welding

You might wonder, “Where do I apply the 2F welding position in real-world scenarios?” The 2F welding position is versatile and used in various industries, including construction, shipbuilding, and automotive manufacturing, to name a few.

I’ve used the 2F position for welding structural supports that required enhanced strength and stability. Since horizontal fillet welds offer substantial joint strength, they’re often used in applications where the welded joint must withstand significant loads.

Characteristics Of The 2F Welding Position

Now that we’ve covered what 2F welding is and where you can use it, let’s dive deeper into its characteristics. Here’s what you need to know about the ins and outs of the 2F welding position:

In a 2F weld, the welding torch or electrode travels across a horizontal axis, making the operation somewhat gravity-affected. This factor makes the weld puddle control vital to ensure a quality weld without excessive spatter or undercuts.

From my experience, maintaining a consistent travel speed and angle is crucial in this position to create a uniform and clean weld. It’s all about skill and practice.

What is the Qualification Range for 2F

Getting a welding certification for the 2F position opens up opportunities for welders to take on specific jobs that demand such skill. As per the guidelines laid out by various certification bodies, the qualification range for the 2F welding position generally includes fillet welding of pipe and plate in the horizontal position.

It’s crucial to understand that the certification process involves rigorous testing of a welder’s ability to create sound welds under set conditions. As someone who’s gone through the process, I can vouch for its thoroughness and value in refining one’s welding skills.


Here are the key benefits I’ve found with the 2F welding position:

The 2F position can be used on various structures and materials, making it quite versatile.

Horizontal fillet welds are known for their strength, making them ideal for high-load structures.


Despite its advantages, the 2F position does have some drawbacks:

Since it’s a semi-horizontal position, controlling the weld puddle can be tricky due to gravity.

The 2F position requires good skill and practice to master, especially on larger fillets.

2G vs 2F Welding Positions

The 2F and 2G positions often get mixed up due to their similar names. But they differ in key aspects. While the 2F position refers to a horizontal fillet weld, the 2G position is for a horizontal groove weld.

A groove weld involves joining two metal parts by filling a groove formed between them. It’s typically used for butt joints. On the other hand, a fillet weld, as used in the 2F position, is typically used for lap and T-joints.

From my experience, while both positions share the horizontal aspect, they require different techniques and considerations due to the type of weld involved.


The 2F welding position is a versatile tool in a welder’s arsenal, providing robust joint strength ideal for many applications. Like all welding positions, it has its pros and cons, but with practice, mastering the 2F position can open up new opportunities in the welding field. Whether you’re a seasoned welder or someone just starting, understanding and perfecting different positions, like the 2F, can go a long way in your welding journey.