Double Coded Welding

To put it simply, a coded welder is someone who has completed a Welder Approval Test in a specific welding configuration. Each method is specific to a certain job in hand, some codes are more general and some are very specific.

Usually, a welding specification is provided for the job which you then need to qualify to that specification. This means the welder will provide a welding sample that mirrors the job as closely as possible.

This is then examined by an approved test examiner to see if the welder is capable of doing the job. If the welder passes, he/she is then considered to be Coded to that specification.

Being Coded in a certain specification does not mean you are qualified in another, even though you are Coded. Each specification requires testing and examining, becoming a multi-coded welder.