Houston Ultrasonic Testing (UT) Services

WH Labs performs ultrasonic testing (UT) in Houston to detect subsurface flaws and measure material thickness in welds, pressure vessels, and pipelines. UT uses high-frequency sound waves that travel through a material and reflect back when they hit a discontinuity or the back wall, and the time it takes for that echo to return reveals the location and size of a defect. WH Labs’ ASNT-certified technicians perform UT in-house and on-site, with results typically available the same day.

How Ultrasonic Testing Works

Ultrasonic testing works by sending high-frequency sound waves into a material with a transducer and measuring how long it takes for the waves to reflect back from a discontinuity or the material’s back wall. WH Labs follows this process for every UT inspection, whether performed in-house or on-site.

• A transducer converts an electrical signal into a mechanical sound wave, typically between 0.5 and 20 MHz
• A coupling agent is applied to the surface to allow efficient sound wave transmission into the material
• The sound wave travels through the material and reflects back when it encounters a crack, void, inclusion, delamination, or the back wall
• Equipment measures the time the echo takes to return, which locates and sizes the defect
• Technicians interpret the results through A-scan, B-scan, or C-scan displays, following ASME and ASTM procedures
• Results are documented for the project’s inspection record

Why Choose WH Labs for Ultrasonic Testing

Industries We Serve

Located in the heart of Houston’s industrial corridor, our ultrasonic testing services support critical operations across the oil and gas, petrochemical, aerospace, and manufacturing sectors.

We’re proud to serve Houston’s diverse industrial base with specialized UT applications, including thickness mapping, weld inspection, and corrosion monitoring.

Our comprehensive NDT capabilities include magnetic particle testing for detecting surface and near-surface flaws in ferromagnetic materials.

Frequently Asked Questions

How long does an ultrasonic testing inspection take?

Most inspections take 2 to 4 hours. Complex geometries or larger components may take 6 to 8 hours to complete.

Can ultrasonic testing be performed on-site?

Yes. WH Labs performs on-site UT throughout the Houston metro area, across Texas and select neighboring states, with emergency response available for urgent inspection needs.

What is the maximum material thickness UT can inspect?

WH Labs routinely inspects materials up to 20 inches thick using conventional UT methods, with advanced techniques available for greater depths depending on material properties.

Are there materials that can’t be tested with ultrasonic methods?

Highly porous materials, rough-surfaced components, and materials with significant internal scattering, such as wood, concrete, and certain composites, are difficult to test reliably with UT.

How often should ultrasonic testing be performed on industrial equipment?

Typical intervals follow API 510, ASME B31.3, and NBIC guidance: annually for critical equipment and every 3 to 5 years for standard industrial components, adjusted for usage and regulatory requirements.

What does ultrasonic testing cost?

Pricing typically ranges from $75 to $300 per component depending on size, complexity, and preparation requirements. Contact WH Labs for a project-specific quote.

Do weather conditions affect the accuracy of ultrasonic testing results?

We must control ambient temperature and humidity during testing, as extreme conditions can affect acoustic impedance and wave propagation. Our procedures require environmental monitoring per ASTM E587 specifications.