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4 February 2024

The difference between coded and certified steel welders

In the world of steel fabrication, the skills of welders stand as linchpins, ensuring the structural integrity and safety of the final steel product. When it comes to assessing the proficiency of welders, terms like “coded” and “certified” often come into play. Let’s take a look at the distinctions between coded and certified steel welders, comparing qualifications that set them apart.

Coded steel welders

Coded welders operate within a framework of specific welding codes and standards. These codes are often established by organisations like the American Welding Society (AWS) or the International Organisation for Standardisation (ISO). They’re set forth the procedures and specifications for welding in different industries.

Besides, a coded steel welder undergoes a rigorous qualification process. It includes welding tests in accordance with specific codes. This process typically involves both visual and destructive testing of welds to ensure they meet the standards set by the applicable code.

Coded steel welders are often specialised in certain industries or applications. The coding they receive pertains to the specific welding processes, materials, and positions relevant to their field. For example, a welder certified to AWS D1.1 may specialise in structural steel welding, while another certified to ASME Section IX might focus on pressure vessel fabrication.

Certified steel welders

On the other hand, certified steel welders receive recognition for their welding proficiency through a broader certification process. This certification may not be tied to a specific welding code. It’s an acknowledgment that the welder possesses the skills and knowledge necessary for quality welding work.

Certification for steel welders can be obtained through welding schools or training programs that follow industry-recognised curriculum standards. These programs cover a range of welding processes, safety protocols, and welding theory.

Certified steel welders are often versatile and adaptable to different welding scenarios. Their certification may encompass various materials, positions, and welding processes, making them well-rounded professionals capable of taking on diverse welding challenges.

Coded vs certified steel welders

In terms of expertise, coded welders define their skills within the specific parameters of welding codes relevant to their industry. On the other hand, certified welders exhibit expertise across a broader spectrum, covering a range of welding processes and applications.

Testing and qualification for coded welding specialists involve undergoing tests specific to the welding code, often involving practical assessments and destructive testing. Certified welders obtain certification through comprehensive training programs that cover various welding aspects.

Coded welders specialise in specific industries or applications defined by the welding code, while certified welders exhibit versatility and can apply their skills across different industries and welding scenarios.

Recognition for coded welders is based on adherence to specific welding codes, with credentials tied to industry standards. Certified welders, on the other hand, are acknowledged for overall welding proficiency, often with credentials from welding schools or training programs.

Whether a steel welder is coded or certified, both designations signify a commitment to excellence in the welding craft. The choice between coded and certified welders often depends on the specific requirements of a project and the industry standards that govern it. In the dynamic landscape of steel fabrication, the expertise of welders – be it coded or certified – remains an indispensable element. It ensures that welded steel structures not only meet but often exceed the stringent standards set for safety and quality.


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