What matters in the welder trade

For welders, the biggest career jump is not just learning to weld—it is learning to weld to code, pass inspection, and prove you can work under jobsite rules. In practice, the most important credentials are the AWS Certified Welding Inspector (CWI) for inspection work, plus code knowledge tied to API and ASME projects. AWS says CWI candidates must meet education and work-experience requirements, pass a vision test, and score at least 72% on each exam part.

These credentials matter because welding jobs are common, but code work is where pay and responsibility rise. BLS projects 42,500 annual openings for welders, cutters, solderers, and brazers, with median pay of $51,000 per year in May 2024 and employment projected to grow 2% from 2023 to 2033.

AWS CWI: the main credential for inspection

The AWS CWI is the best-known certification for weld inspection in the trade. AWS requires a combination of education and welding-based work experience; for example, a high school diploma plus 5 years of welding-based experience is one qualifying path, while higher education can reduce the experience requirement.

  • Why it matters: CWIs read welds, verify code compliance, document defects, and often become the quality gate on structural, industrial, and pressure-related work.
  • Hard requirement: Candidates must pass a vision test and meet AWS’s documented eligibility rules before testing.
  • Testing: AWS states candidates must score at least 72% on each exam part to earn the credential.

API and ASME: the code knowledge that drives real jobs

API and ASME are not “welder licenses” in the same way as a CWI; they are code systems that govern fabrication, inspection, and repair on different kinds of work. In the field, welders and inspectors are expected to know the code that controls the job.

  • API is most associated with oil, gas, pipelines, storage tanks, and refinery work.
  • ASME is central to pressure vessels, boilers, piping, and other regulated mechanical systems.
  • Practical takeaway: A welder who understands code requirements is more valuable than one who only knows how to run a bead.

OSHA does not certify welders, but it sets safety expectations that shape every welding job. OSHA’s welding, cutting, and brazing standard requires ventilation, fire prevention, and protection from fumes and gases, which is why code knowledge and safety discipline travel together on the jobsite.

What employers actually want

Employers usually want a welder who can do three things: produce sound welds, follow procedure, and document work correctly. That is why code familiarity, inspection skills, and blueprint reading matter as much as hands-on welding ability.

  • Entry-level path: welding school or apprenticeship, then on-the-job hours.
  • Mid-career path: code work, procedure qualification, inspection support, and eventually CWI.
  • Advanced path: CWI plus deeper API/ASME code familiarity for industrial, pipeline, or pressure work.

Bottom line for welders

If you want the highest-value path in welding, build toward CWI and learn the difference between API and ASME code work. The money and responsibility follow the codebook, not just the torch.