Radiography Testing (RT) is a powerful non-destructive testing (NDT) technique that utilizes X-rays or gamma rays to penetrate materials and reveal internal flaws without damaging the component. This method ensures structural integrity, safety compliance, and extended equipment life across various industries.
Radiographic testing involves directing a controlled beam of ionizing radiation (X-ray or gamma ray) through the component onto a radiographic film or digital detector on the opposite side. Variations in material density or internal discontinuities such as cracks, porosity, lack of fusion, or inclusions are revealed as differences in image contrast, allowing for accurate flaw identification.
Radiography is widely used to inspect butt welds, fillet welds, and other structural welds for:
Incomplete penetration or fusion
Internal cracks or slag inclusion
Porosity and blow holes
Misalignments
Used extensively in oil & gas, chemical, and water distribution industries, RT ensures:
Weld integrity in pipeline joints
Detection of internal corrosion or erosion
Identification of stress-induced defects
For high-pressure environments, RT verifies structural soundness by checking:
Weld seams in pressure boundaries
Tube-to-tube sheet joints
Critical zones susceptible to fatigue or creep
Essential in tank fabrication and maintenance:
Spot checks on shell welds and nozzle joints
Evaluation of internal defects in load-bearing areas
Periodic inspection during shutdowns or regulatory audits
All radiographic inspections are carried out by certified personnel as per ASNT SNT-TC-1A, ISO 9712, or equivalent certification schemes.
Radiography Testing is performed in accordance with national and international codes and standards, including but not limited to:
Clients receive a detailed inspection report, including:
Due to the use of ionizing radiation, strict adherence to radiation safety protocols is maintained, including:
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