NON-DESTRUCTIVE TESTING (NDT)

NON-DESTRUCTIVE TESTING (NDT)

Non-Destructive Testing assesses material properties and detects flaws without causing damage to the tested component. Unlike destructive testing, NDT preserves the integrity of the item under examination — making it a cost-effective and essential technique for quality assurance, in-service inspection, and regulatory compliance.

ASR Metallurgy provides comprehensive NDT services for both onshore and offshore projects, supporting sectors including steel manufacturing, oil and gas, power generation, pipelines, fertiliser plants, refineries, and fabrication workshops.

1. Radiography Testing (RT)

Test Methods: ISO 17636 Part 1, IS 1182, IS 4853, IS 2595, ASME SEC V Article II, ASTM E1030, ASTM E1032, ASTM E94

Equipment: Ir-192 Gamma Ray Sources (04 units) | X-Ray 250 kV (06 units) | X-Ray 300 kV (02 units)

Uses X-rays or gamma rays to produce radiographic images of a component's internal structure. Detects volumetric defects such as porosity, slag inclusions, lack of fusion, and cracks in welds, castings, and forgings.

2. Ultrasonic Testing (UT)

Test Methods: EN 10160, EN 10228-3 & 4, EN 17640, EN 12680-1, ASTM A609, ASTM A388, ASTM E164, ASTM E213, ASTM E273, ASTM A435, ASTM A578, ASTM A577, ASTM E797, IS 7666, IS 11630, IS 3664, IS 7343, IS 8791, IS 6394, IS 4225, IS 4260

Equipment: Digital Ultrasonic Flaw Detectors (12 units, MODSONIC) | Ultrasonic Thickness Gauge (OLYMPUS, USA) | Thickness Gauges (04 units, MODSONIC)

Employs high-frequency sound waves to detect internal discontinuities and measure material thickness. Effective for plates, pipes, forgings, castings, and welded joints with inspection capability from 5 mm to 5000 mm in steel.

3. Magnetic Particle Testing (MT)

Test Methods: EN 1369, ISO 17638, EN 10228-1, ASTM E709, ASTM A275, IS 7743, IS 5334, IS 3703, IS 6752

Equipment: MPI Yoke Machines with UV/Black Light (04 units, Magnaflux)

Detects surface and near-surface discontinuities in ferromagnetic materials using induced magnetic fields and ferrous particles. Supports both dry and wet methods, with fluorescent and visible particle options.

4. Liquid Penetrant Testing (PT)

Test Methods: ISO 3452-1, EN 10228-2, ASTM E165, ASTM E1220, ASTM E1417, IS 3658

Equipment: Complete LPT kit (solvent-removable, water-washable, and post-emulsifiable systems)

Detects surface-breaking flaws in non-porous materials — including metals, ceramics, and plastics — using dye penetration techniques under both visible and UV light conditions.