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1. Member
Join Date
May 2010
Posts
56

Welding Position Meanings ???

When I see something like 4F and 6g what am I actually reading.........is there a breakdown for this ???

2. Welding Position Meanings ???

http://www.gowelding.org/Welding_Certification.html

Kevin

3. Senior Member
Join Date
Nov 2008
Location
Atl, Ga
Posts
371
The most common tests for structural certs (AWS D1.1) are usually 3g & 4g. They don't usually test flat because they assume If you can weld in the harder positions like vertical-up and overhead, you can handle the easier positions.

The most common test for pipe is 6g. 6g isn't a very common joint in the field but it's a good one for tests because it combines a little bit of every position into one joint so it basically covers every conceivable position into one test.

G=groove and F=Fillet. Plate can have either, but the pipe positions will always be "G".

3&4 apply only to plate, 5&6 apply only to pipe.

1=Flat, plate or pipe on rollers, you are always on the top. Easiest position.
2=Horizontal, along a level axis on a wall or around a pipe that's pointing straight up/down, as you would write on a chalkboard, east/west

3=Vertical , plumb, north/south, up/down
4= Overhead, Note that 4g is sometimes called "rooftop" to differentiate it from 4f. 4g is 100% overhead, 4f can be seen as 50%overhead/50% horizontal so it's a slightly easier position.

5g= Pipe is running horizontal. Weld could be considered flat, vertical, or overhead depending where you are welding along the joint/ around the pipe
6g= Similar to 5, but Pipe is on a 45 degree angle instead of horizontal. You have to adjust rod angle/technique to compensate for gravity more often than you would have to in 5g, so it's a bit more difficult.

*bonus*
"6gr" = 6g restricted test. 6G pipe position with a donut shaped plate added just above the weld joint. Logic behind it is that the plate restricts access somewhat and affects how well you can see wtf you are doing. For employers who think 6g is not a challenging enough test. 6GR joint is designed soley for testing.

if none of that makes sense, just study the pictures in link posted by Kevin and memorize them.

4. Welding Position Meanings ???

1-6g for pipe + restricted ( pipe, wall, equipment, etc... Obstructing the weld and non visible weld, using mirror )

1 is for a pipe in the horizontal position that is rolled.
2 is for a pipe in the fixed vertical position.
5 is for a pipe in the fixed horizontal position.
6 is for a pipe in a 45 degree fixed position.
R is for the restricted position.

AWS test inspection will specify if 1-4g is for pipe or plate. Passing 3 and 4g plate doesn't certify you for 1 and 2g
Kevin

5. Member
Join Date
Feb 2012
Posts
92
1-flat
2-horizontal
3-vertical
6- 45 degree tilted pipe

G is a groove weld and F is a fillet weld. Example: a 3F would be a vertical fillet weld, and a 1G is a flat groove weld (most commonly a butt joint).

6. Senior Member
Join Date
Jul 2010
Posts
386

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