6G Welding Position Explained

Written By: Liam Bryant

The 6G welding position is a versatile pipe welding position that challenges welders to weld in all positions on a fixed pipe. It’s often used in industries like power plants, petrochemicals, and shipyards due to its adaptability to different angles and positions.

welding positions

What is 6G Welding Position

In the realm of welding, the 6G welding position is one of the most difficult and versatile. The “G” in 6G refers to the groove joint used, and the “6” indicates the pipe’s fixed position at a 45-degree angle. A welder working in the 6G position must weld in all basic welding positions including flat, overhead, vertical, and horizontal. The pipe remains stationary while the welder moves around it, making it challenging to test a welder’s skills.

In my personal journey as a welder, mastering the 6G welding position was a significant milestone. There was a steep learning curve because this position demanded a fusion of all the skills I had acquired. It meant perfecting my vertical and overhead welding technique and my horizontal and flat position welding skills, all on one pipe.

Where Do You Use 6G Welding

6G welding is commonly used in industries where pipe systems are essential. These include power plants, the oil and gas industry, petrochemical plants, shipyards, and refineries. In these settings, the 6G welding position offers the versatility needed to weld pipes in-place, which often sit at various angles and in tight spaces.

For instance, in my experience working in a power plant, space was a premium. We often had to weld pipes in positions and at angles that would be impossible with anything less than a 6G certified welder.

Characteristics Of The 6G Welding Position

The primary characteristic of the 6G welding position is the pipe’s fixed position at a 45-degree angle. It demands various welding techniques, depending on the section of pipe you’re working on.

For instance, at the top of the pipe, you’re welding in an overhead position, which can be difficult due to the force of gravity. As you move to the middle of the pipe, it shifts to a more horizontal position. Finally, at the bottom of the pipe, you’re in the vertical welding position. You essentially experience different positions in one pipe.

Remember, the 6G position requires the welder to adjust and move around the pipe, not vice versa. When I first learned the 6G position, I found this aspect the most challenging yet rewarding as it considerably honed my skills.

What is the Qualification Range for 6G

In terms of certification, passing a 6G welding test qualifies a welder for all positions – flat, horizontal, vertical, overhead, and of course, the 6G position itself. This is why it’s often seen as a gold standard in the industry. It’s a comprehensive test of your abilities and a testament to your skills as a welder.

Earning my 6G welding certification was a proud moment, but it was no small feat. The exam was an intense combination of all different positions, material types, and joint configurations.


There are several benefits to mastering the 6G welding position. First and foremost, it opens up numerous job opportunities in industries that highly value this certification. Plus, as a 6G certified welder, you’ll likely command a higher wage due to your advanced skills.

Another advantage is that it equips you to handle various welding tasks, since you can weld in all positions. This gives you an edge in troubleshooting and adapting to diverse on-site scenarios.


However, the 6G welding position is not without its drawbacks. The level of skill and practice required to pass the 6G welding test is substantial. It can be difficult and time-consuming to master.

Also, welding in the 6G position can be physically demanding due to its complexity. Working around a fixed pipe at a 45-degree angle can be taxing and requires a high degree of concentration.

5G vs 6G Welding Positions

The main difference between the 5G and 6G welding positions lies in the pipe’s mobility. In a 5G position, the pipe is fixed horizontally, and the welder moves around it. However, in the 6G position, the pipe is fixed at a 45-degree angle, necessitating the welder to maneuver around and adjust to changing positions.

From my perspective, while the 5G position has its own challenges, it doesn’t compare to the degree of difficulty and skill the 6G position demands. But on the other hand, once you master the 6G position, you become a highly versatile and sought-after welder.


Mastering the 6G welding position is a significant achievement that can unlock many opportunities in the welding field. Despite the challenges it presents, the rewards – in terms of skill development, versatility, and career advancement – are substantial.

As a seasoned welder, I can confidently say that while the journey to 6G certification is demanding, it’s well worth the effort. After all, the journey to becoming a master welder is not just about the destination, but the skills and experiences gained along the way.