At Cutech, our ultrasonic testing services provide precise flaw detection, thickness measurement, and weld integrity checks. Our certified NDT technicians work across various industries, including construction, fabrication, marine, and industrial projects to support compliance with international codes and Class Survey requirements.
What is Ultrasonic Testing (UT)?
Principles of Ultrasonic Examination and Sonic Test
Also referred to as a sonic test, ultrasonic testing (UT) works on the principle of transmitting high-frequency sound waves into a material to detect internal consistencies.
When these waves encounter a crack, void or boundary between different materials, they reflect to the probe. The strength of the reflected signals allows inspectors to determine the presence, size, and location of defects.
How Ultrasonic Inspection Works
Ultrasonic inspection uses sound waves to detect internal flaws without damaging a material.
- A transducer sends high-frequency waves into the material component
- Reflected signals indicate flaws or wall thickness
- Results are shown on a display for evaluation
At Cutech, we use this method to retrieve reliable results for both surface and subsurface inspections.
Equipment Used for Ultrasonic Testing
At Cutech, we use industry-standard tools for accurate results, including:
- Flaw detectors and digital display units
- Single or array transducer probes
- Couplants to transmit sound waves
Our systems support both manual and automated ultrasonic examination workflows.
C-Scan Imaging in Ultrasonic Testing
A C-Scan provides a top-down view of internal features by mapping amplitude or time-of-flight data and is useful for corrosion mapping, thickness checks and defect sizing.
This method is commonly applied during immersion ultrasonic testing and improves reporting accuracy with a visual output.
Single Element and Array Probes in Ultrasonic Examination
At Cutech, we use both probe types depending on inspection needs. Single-element probes are suited to flaw detection and basic wall thickness checks, while array probes contain multiple elements to deliver higher resolution and broader scan coverage.
However, both are key to achieving reliable ultrasonic inspection data in different environments.
Analysing Ultrasonic Inspection Results
Following the testing process, our experienced technicians review waveform signals and amplitudes to identify defect size, location and type. Thereafter, our team produces a report in line with ISO, ASTM and ASME standards detailing findings evidencing structural integrity, and flagging any anomalies that may affect safety, compliance or operational performance.
Benefits of Using Ultrasonic Testing in Industry
Ultrasonic testing offers a reliable and flexible way of evaluating internal material integrity across industries such as oil and gas, marine, power generation and manufacturing.
This testing supports preventative maintenance, safety assurance and class survey compliance.
Accuracy and Precision in Ultrasonic Testing
Ultrasonic testing is highly valued for its ability to pinpoint faults that are not visible to the naked eye or detectable through simpler techniques. It can detect both surface and subsurface defects, delivers real-time data for location, size and orientation, and is suitable for precise evaluation of welds, castings and bonded materials.
Non-Destructive Nature of Ultrasonic Inspection
An ultrasonic inspection is non-destructive and non-invasive. It allows asset owners to inspect parts without removing coatings, cutting samples or halting production. This makes it especially valuable for in-service checks, class surveys and condition monitoring.
Cost-Effectiveness of Ultrasonic Testing
At Cutech, we understand the importance of reducing downtime, avoiding material waste, and extending asset lifespan. One of the key benefits of ultrasonic testing is its ability to detect faults before failure. This helps to lower maintenance costs and improve overall operational efficiency.
Our Ultrasonic Testing Services
Conventional UT for Welds, Forgings, and Castings
At Cutech, our experienced team carry out ultrasonic testing on welds, forgings and castings to detect flaws, measure material properties, and ensure conformity with engineering standards.
Conventional ultrasonic testing is ideal for high-stress components across various industries.
Immersion Ultrasonic Testing for Critical Components
Our immersion ultrasonic testing process offers high-resolution scans by submerging parts in water. This allows for the precise evaluation of intricate shapes and fine defects.
High-Precision Thickness Gauging
We provide accurate thickness checks using both ultrasonic thickness measurement (UTM) and ultrasonic thickness testing (UTT) methods.
At Cutech, we use both methods to assess corrosion, wear, and remaining wall thickness on pipes, tanks and structures.
Ultrasonic Thickness Measurement (UTM)
Ultrasonic thickness measurement (UTM) is frequently used in ship hull inspections and class surveys. It helps to measure material loss over time, supporting safe operations and ensures compliance.
Ultrasonic Thickness Testing (UTT)
Ultrasonic thickness testing (UTT) delivers fast and reliable data for in-service inspections without interrupting operations.
This testing method is crucial in assessing asset integrity in the field.
Remote Visual Inspection & Integrated NDT Methods
What is Remote Visual Inspection (RVI)?
Remote Visual Inspection (RVI) is a visual NDT technique using video scopes and cameras to inspect areas that are unsafe or inaccessible to personnel.
When to Combine RVI with Ultrasonic Testing
When combined with ultrasonic testing, Remote Visual Inspection detects and evaluates characteristics of corrosion in confined or high-risk spaces. Using the two methods together offers a complete picture of asset condition.
Ultrasonic Testing for Class Survey Compliance
Class Survey Requirements for Marine & Offshore
At Cutech, we support marine and offshore clients with ultrasonic testing for class survey requirements.
Our experienced inspectors follow IACS standards to verify hull thickness, detect corrosion, and report on structural condition.
UT for Class Renewal and Hull Structure Assessment
Ultrasonic inspection is used during Class Renewal Surveys to evaluate shell plating, tanks and internal structures. The accuracy of thickness readings provided helps to support compliance and ongoing vessel certification.
Why Choose Cutech for Ultrasonic Testing?
Experienced Technicians and Certified Inspectors: At Cutech, our team consists of certified NDT technicians with extensive experience in ultrasonic examination, inspection and reporting. We work in accordance with ISO, ASTM and ASME standards to deliver accurate, reliable results across a wide range of materials and sectors.
Advanced Equipment and Techniques: Our experienced team use the latest flaw detectors, imaging software and probe arrays to ensure reliable and accurate ultrasonic testing. We are trusted industry-leading experts, regularly supporting clients across the marine, oil and gas, and industrial sectors due to our precise methods and dependable reporting.
Fast Turnaround and Accurate Reporting: At Cutech, we pride ourselves on delivering clear, timely reports that support clients in fast decision-making around compliance, repairs and project planning. We have a proven record of accurate reporting on complex, large-scale projects across multiple regulated industries.
Ultrasonic Inspection FAQs
What is ultrasonic inspection?
Ultrasonic inspection is a non-destructive testing method that uses high-frequency sound waves to find flaws inside materials and is widely used across industries to support compliance, safety and maintenance planning.
How does ultrasonic testing work?
A transducer sends sound waves into a material. If the material waves hit a defect or boundary, they reflect back. The echoes produced are analysed to identify and locate internal issues.
What is the minimum thickness for ultrasonic testing?
The minimum thickness for ultrasonic testing depends on the material and technique adopted. With advanced probes and equipment, ultrasonic inspection can be used on components as thin as 1mm.