Metal Joining Examination
with METL
METL performs weld certification to both AMS (MIL) and AWS specifications. We can qualify weld procedures, equipment, and operators for TIG, MIG, plasma, laser, and electron-beam welding. In addition, METL performs chemical analysis of welding wire to ensure alloy compliance.
Braze and solder joints and alloys can also be examined for quality and compliance to applicable specification requirements.
Qualification
Typical qualifications are performed in accordance with aerospace standards such as AWS D17.1. Other requirements or standards can be used as well.
Qualification
Typical qualifications are performed in accordance with aerospace standards such as AWS D17.1. Other requirements or standards can be used as well.
Design Inspection
If joint integrity is a concern, METL can evaluate fusion, penetration, and any possible defects.
Design Inspection
If joint integrity is a concern, METL can evaluate fusion, penetration, and any possible defects.
Tensile and Bend Testing
Structural welds can be tested for mechanical properties to ensure they meet requirements.
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Hardness Survey
METL can perform hardness traverses across welds, heat affected zones (HAZ), and mating structures with precision using an automated hardness tester.
Hardness Survey
METL can perform hardness traverses across welds, heat affected zones (HAZ), and mating structures with precision using an automated hardness tester.
Scanning Electron Microscopy (SEM)
Scanning electron microscopy (SEM) can be used to pinpoint leaks or cracks in joints. When used with EDS, problematic phases or contaminants can be identified.
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Failure Analysis
Finding issues with your joining processes? We can provide support to help you determine what is causing joints to fail.
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See Failure AnalysisChemical Analysis
METL provides chemical testing of weld fillers, soldering alloys, and braze alloys.
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Radiographic Examination
Radiographic weld inspection is a non-destructive test that can provide helpful information about the integrity of a joint.
Radiographic Examination
Radiographic weld inspection is a non-destructive test that can provide helpful information about the integrity of a joint.


Why METL
We provide third-party testing to ensure viability and reliability
Affordable
As an independent laboratory we have the freedom to offer extremely competitive rates without compromising our integrity.
Trusted Knowledge
With Over 45 years of service to customers of many industries, you can trust that you are getting the highest quality results.
Fast Service
We work with your schedule. Need your results by a specific date? Let us know and we will do our best to accommodate your requirements.
Commonly Asked Questions
Is weld qualification destructive?
In most cases, yes, weld examination requires the destruction of samples. Some visual or non-destructive testing may be performed upon request.
I am a welder. Can METL provide a certification that my welds meet my customers' standards?
Yes! Depending on the specifications or standards you reference, we can help ensure your welds meet the criteria.
Our braze joint is not as strong as it should be. Can METL help us figure out why?
Yes, METL has multiple tests to evaluate joints and can provide feedback on fusion, defects, or penetration.