Ultrasonic Contact Testing Services | UT Inspection

Conventional NDT Services

Ultrasonic

Contact Testing

Detect internal cracks, weld discontinuities, corrosion and wall loss with high-frequency sound waves, without cutting, damaging or interrupting the serviceability of your component.

Inspection Snapshot

Reliable insight below the surface

Weld Examination

Angle-beam and straight-beam UT

Thickness Measurement

Corrosion and wall-loss monitoring

Material Evaluation

Plate, forging, casting and component inspection

Discuss your inspection

Certified Personnel

Qualified NDT professionals

Fast Turnaround

Responsive scheduling

Modern Equipment

Calibrated UT instruments

Detailed Reports

Clear inspection findings

Non-Destructive

Inspect internal integrity while keeping the component usable.

What is contact UT?

See what visual inspection cannot

Ultrasonic Contact Testing uses a probe placed directly on the test surface to transmit high-frequency sound waves into the material. Reflections from the back wall and internal discontinuities are displayed and interpreted by a qualified technician.

The method is commonly used to locate and evaluate cracks, lack of fusion, laminations, inclusions, voids and corrosion-related wall loss. It can often be performed from one accessible side of a component.

Weld inspection

Wall thickness

Lamination detection

Crack location

Corrosion monitoring

Quality verification

--------- Our Process ---------

A controlled inspection from calibration to report

CMH NDT Services is a trusted provider of non-destructive testing, metallurgical analysis and quality consulting across Ontario.

Our mission is simple: deliver accurate results, keep people safe and help our clients build confidence.

Scope Review

We review drawings, materials, access conditions and acceptance criteria.

Calibration

Equipment and probes are checked using suitable reference standards.

Systematic Scan

The inspection area is scanned using the selected technique and probe angle.

Evaluation & Report

Relevant indications are assessed and documented in a professional report.

--------- Inspection capabilities ---------

Ultrasonic testing for critical components

Our conventional UT services support manufacturing quality control, field inspection, asset integrity, maintenance and failure investigations.

Weld Inspection

Evaluate butt welds and structural connections for internal discontinuities using suitable straight- or angle-beam techniques.

Thickness Measurement

Measure remaining wall thickness and monitor corrosion in pipes, tanks, vessels and fabricated components.

Plate & Lamination Testing

Identify internal laminations and material separation in steel plate and other suitable wrought products.

Forgings & Castings

Inspect suitable components for internal voids, inclusions, shrinkage and manufacturing-related imperfections.

In-Service Inspection

Support maintenance and integrity programmes by checking components without destructive sectioning.

Failure Investigation

Use targeted ultrasonic inspection alongside metallurgical and mechanical testing to evaluate suspected damage.

--------- Discontinuities ---------

What ultrasonic contact testing can detect

Detection capability depends on material condition, geometry, surface access, flaw orientation and the selected probe and technique.

Internal Cracks

Lack of Fusion

Lack of Penetration

Slag Inclusions

Laminations

Voids

Shrinkage

Delaminations

Corrosion

Wall Loss

--------- Codes & standards ---------

Inspection aligned with your requirements

Testing can be performed to applicable customer procedures, drawings, specifications and recognised industry standards. The final method is confirmed after reviewing component geometry, material and acceptance criteria.

ASTM E114

Pulse-echo UT

ASTM E164

Weld contact UT

ASTM E317

System performance

ASTM E797

Thickness measurement

ASME V

NDE requirements

AWS D1.1

Structural welding

--------- Industries served ---------

Supporting quality, safety and asset integrity

CMH NDT Services is a trusted provider of non-destructive testing, metallurgical analysis and quality consulting across Ontario.

Our mission is simple: deliver accurate results, keep people safe and help our clients build confidence.

Oil, Gas & Pipeline

Construction & Infrastructure

Energy & Power

Manufacturing

What our clients say

    
 
 
       Posted on Google  
   
   Paul Herman 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you for the quick service and the complete report.
Best wishes
Paul Herman
Firwin Corp
  
 
      Posted on Google  
   
   Jon Himelfarb 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service, above and beyond what was asked for or expected. CMH Metlabs expedited their internal processes to meet an urgent request and helped us meet our deadlines. 100% would recommend them.
  
 
      Posted on Google  
   
   Mark Nowakowski 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you CMH METLABS for your attention, professionalism and responsive communication. This includes your extra follow-up to confirm the lab test results. We were able to continue our business with minimal delay thanks to your efforts!
  
 
      Posted on Google  
   
   George Berton 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very co operative with information and timing.
  
 
      Posted on Google  
   
   ahmadreza asefi 
 
 
 
 Trustindex verifies that the original source of the review is Google. The professional team, the good testing equipment, the short turnaround time, and the comprehensive reporting have all made us extremely satisfied with this laboratory. We will certainly return to them for future testing needs.
  
 
      Posted on Google  
   
   Etienne Fortier 
 
 
 
 Trustindex verifies that the original source of the review is Google. Submitted metal sampled for testing, obtained test results promptly and professionally. Highly Recommended.
  
 
      Posted on Google  
   
   Sanjay Sharma 
 
 
 
 Trustindex verifies that the original source of the review is Google. Birla Carbon Hamilton worked with CMH for testing their boiler tube . CMH Metlabs issued a report for their testing. The report was good and covered all technical requirements. We will work with them in future.
  
 
      Posted on Google  
   
   Don Webster 
 
 
 
 Trustindex verifies that the original source of the review is Google. CMH Metlabs did a number of chemical analysis for us over the last few weeks. The prices are good and the turn-around time was excellent. We needed some clarity on the results from the tests. The technical people at CMH responded quicky and our questions were answered. We discovered a couple of typos in the reports but it did not affect the over all
accuracy of the report. We are looking forward to continuing our analyses with CMH.

Frequently asked questions

Answers before you schedule

Share the component type, material, dimensions, inspection location, drawings and applicable standard so we can recommend the correct UT approach.

Does ultrasonic testing damage the component?

No. Contact UT is non-destructive. A temporary couplant is applied to transmit sound into the material and is removed after inspection.

Can UT detect internal weld defects?

Yes. With suitable geometry and probe selection, UT can detect weld-related discontinuities such as lack of fusion, lack of penetration, cracks and inclusions.

Can testing be completed on-site?

Yes. CMH Metlabs can provide laboratory and field inspection services, subject to site access, safety requirements and equipment suitability.

What information is needed for a quotation?

Please provide the material, component type, thickness, quantity, inspection area, location, drawings, applicable code and required turnaround time.

Can UT measure corrosion-related wall loss?

Yes. Ultrasonic thickness measurement can be used to determine remaining wall thickness where surface condition and material properties permit reliable readings.

--------- Need an inspection? ---------

Get clear answers below the surface

Send us your drawings, component details and applicable acceptance criteria for a practical testing recommendation.

Contact CMH Metlabs

Plan your UT inspection

Our team can help confirm the appropriate test method, sample access, preparation and reporting requirements.

Tell us about your job

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By submitting you agree to be contacted about your request. We never share your details.

Conventional NDT Services

Ultrasonic

Contact Testing

Inspection Snapshot

Reliable insight below the surface

Weld Examination

Thickness Measurement

Material Evaluation

Certified Personnel

Fast Turnaround

Modern Equipment

Detailed Reports

Non-Destructive

See what visual inspection cannot

Weld inspection

Wall thickness

Lamination detection

Crack location

Corrosion monitoring

Quality verification

--------- Our Process ---------

A controlled inspection from calibration to report​

Scope Review

Calibration

Systematic Scan

Evaluation & Report

--------- Inspection capabilities ---------

Ultrasonic testing for critical components

Weld Inspection

Thickness Measurement

Plate & Lamination Testing

Forgings & Castings

In-Service Inspection

Failure Investigation

--------- Discontinuities ---------

What ultrasonic contact testing can detect

Internal Cracks

Lack of Fusion

Lack of Penetration

Slag Inclusions

Laminations

Voids

Shrinkage

Delaminations

Corrosion

Wall Loss

--------- Codes & standards ---------

ASTM E114

ASTM E164

ASTM E317

ASTM E797

ASME V

AWS D1.1

--------- Industries served ---------

Supporting quality, safety and asset integrity

Frequently asked questions

Answers before you schedule

--------- Need an inspection? ---------

Get clear answers below the surface

Plan your UT inspection

Tell us about your job

A controlled inspection from calibration to report