Harnessing Technology in NDT – From Radiography to Phased Array Testing

In today’s industrial environment, safety and efficiency rely heavily on advanced Non-Destructive Testing (NDT) methods. At National NDT Services, we integrate modern technology with proven expertise to deliver precise inspection solutions for oil & gas, marine, power, and construction industries across Africa, the Middle East, and beyond.

Radiographic Testing – Accuracy in Imaging

Radiographic Testing

Industrial Radiography remains one of the most reliable inspection methods for internal weld defects and structural flaws. Our portfolio includes:

Gamma Radiography for pipelines, vessels, and welds.

X-Ray Radiography for detailed imaging of structural components.

Digital Radiography (DR) and Computer Radiography (CR) for faster results with lower radiation exposure.

Close Proximity Radiography (CPR) to ensure safety in restricted or occupied areas.

These techniques ensure compliance with international safety standards while reducing downtime.

Ultrasonic Testing – Beyond the Surface

National NDT Services also leads in Ultrasonic Testing (UT), offering:

Ultrasonic Weld Testing & Ultrasonic Thickness Testing for corrosion mapping.

Phased Array Ultrasonic Testing (PAUT) for complex welds and structures.

C-Scan Pipe & Vessel Crawler Inspection for automated large-area scanning.

Corrosion Under Pipe Support Testing (CUPS) for critical infrastructure maintenance.

These ultrasonic techniques provide accurate data, allowing industries to take proactive maintenance measures.

Serving Global Industrial Hubs

We are active in South Africa (Durban, Johannesburg, Cape Town, Richards Bay, Gauteng, Mpumalanga, KZN) and extend services across Mozambique, Zambia, Kenya, Tanzania, Ghana, Nigeria, Botswana, Zimbabwe, Uganda, Swaziland, and the DRC Congo. Beyond Africa, our expertise reaches Kazakhstan, Saudi Arabia, the Middle East, Australia, and New Zealand.

Rope Access & Specialized Tools

Many inspection areas are hard to reach. Our Rope Access NDT teams and Internal X-Ray Pipeline Crawlers allow us to inspect confined or elevated spaces safely and efficiently. Additionally, our Tank Crawlers and AUT Tank Crawlers perform inspections with high precision and minimal disruption.

Certified Excellence

All services are backed by international certifications:

ISO 9001, ISO 14001, and ISO 45001

SANS 17020, PCN, ASNT, and SNT-TC-1A Level 2 qualifications

Marine approvals from LRS, BV, ABS, and DNV GL

This ensures clients receive results that meet the highest global standards.

Supporting Energy & Manufacturing

From oil refineries in Secunda, pipelines in Nigeria, to renewable energy projects in Kenya, our team ensures integrity at every stage. We also support automotive corrosion mapping and tube inspections with technologies like Eddy Current Testing (ECT), Surface Eddy Current, Remote Field Tube Testing, and IRIS Inspection.

Conclusion

With a strong combination of radiography, ultrasonics, phased array, and rope access, National NDT Services is setting new benchmarks in inspection accuracy and safety. By investing in technology and skilled professionals, we continue to safeguard industries across Africa and the global market.