Nellai NDT Private Limited delivers precise non-destructive testing, third-party inspection and internationally recognised NDT training & certification — trusted across oil & gas, fabrication and power industries.
Full-scope non-destructive testing and third-party inspection for welds, pipelines, pressure vessels, storage tanks and rotating equipment — on site or in the field.
Industry-experienced faculty deliver ASNT SNT-TC-1A based NDT training with internationally recognised certification, hands-on practice and job-placement support.
From routine weld inspection to advanced imaging and heat treatment — carried out by certified technicians to ASME, API and international acceptance standards.
Straight & angle beam flaw detection and thickness gauging for welds, plates, forgings and castings.
Advanced imaging and time-of-flight diffraction for critical welds and fracture-mechanics scans.
Digital and conventional film radiography with interpretation to code acceptance criteria.
Surface and near-surface crack detection on ferromagnetic components using yoke and wet method.
Visible and fluorescent dye penetrant inspection for surface-breaking defects.
Tube and surface inspection of heat exchangers, condensers and non-ferrous components.
Portable Leeb, UCI and Telebrinneller in-situ hardness verification on installed equipment.
Positive material identification and optical emission spectroscopy for alloy & grade confirmation.
Storage-tank floor and pipeline corrosion mapping to locate hidden metal loss.
Controlled localised heat treatment with calibrated thermocouples and recorded profiles.
Independent witness, vendor and in-service inspection across fabrication and plant assets.
Procedure development, technique qualification and personnel certification support.
As a premier institute for NDT, Nellai NDT trains and certifies candidates in all non-destructive testing methods at Level I and Level II — with industry-experienced faculty, hands-on practical training and job-placement support. This is where careers in inspection begin.
“Train on real weld configurations — not theory alone.”
Ultrasonic Testing Level II training with a strong emphasis on hands-on practical application — inspection techniques, calibration, evaluation and acceptance criteria in accordance with applicable international codes and standards.
Practical inspection of common tubular and pressure-component joint configurations, including nodal connections and branch welds.
Real ultrasonic and penetrant inspections carried out by our team — on shafts, flanges, pipelines and machined components across Tamil Nadu and beyond.
Scan the QR code on any Nellai NDT certificate, or enter the certificate number below, to confirm it is genuine. Employers can verify a single candidate instantly; enter a batch number to view the full group.
TRY IT: type NN-113-1 for one certificate, or 113 for the whole batch.
Nellai NDT Private Limited is a registered private limited company, recognised by the Government of India across incorporation, startup recognition and foreign trade.
Independently verifiable at mca.gov.in · startupindia.gov.in · dgft.gov.in
Nellai NDT Private Limited was established to deliver best-in-class quality assurance through inspection, testing, third-party inspection and NDT training in the field of non-destructive testing. We combine certified expertise with modern equipment and a strict safety focus.
UT · Straight-beam weld inspection