What Does It Mean to Be a Coded Welder

This article explores the role of a coded welder, examining their qualifications, the distinctions between coded and certified welders, and the importance of welding codes in various industries.

What is a coded welder?

A coded welder is someone who has passed a welder approval test to meet industry standards. These welders work on tasks that require precise skills to ensure the safety and quality of welded joints. Such tasks usually involve critical projects like pressure vessels and pipelines. 

What are the differences between coded welders and certified welders?

Coded welders and certified welders might sound similar, but there are important differences between them. A certified welder is someone who has completed training and has proven their skills through testing. Certification means that the welder can weld to a certain standard in a given process, like MIG welding or TIG welding, using specific materials.

However, a coded welder goes a step further. They must adhere to specific welding codes and pass more stringent tests that evaluate their ability to perform high-quality welds in critical applications. This includes welding configurations under particular specifications such as BS 4872, EN ISO, or AWS D1.1.

Approval tests are often job-specific, covering distinct types of welding required for certain projects. These tests include working in specific positions and with various materials like mild steel. Coded welders are required for more specialised roles, especially in manufacturing and construction, where safety and precision are paramount.

What are the different types of welding codes?

Welding codes are established to ensure that welds meet certain quality and safety standards. These codes are typically set by industry organisations and vary based on the type of work and location. Some common welding codes include BS EN, which is a European standard, and ASME, which is widely used in engineering and pressure vessels. AWS D1.1 is often used for structural welding in construction.

Each code provides a set of guidelines and procedures that welders must follow. This includes specifics about the welding process, materials, positions, and types of welding joints. The codes ensure that every weld completed by a coded welder fits a particular specification. They also require regular tests to maintain the welder's approval.

What are the five basic types of welding joints?

Welding joints are where two pieces of metal meet to be joined together through welding. There are five basic types of welding joints that welders commonly work with.