Inspection & Certification
Non-Destructive Testing
8 Advanced Techniques to Ensure Asset Integrity
Non-Destructive Testing (NDT) is fundamental for detecting discontinuities and assessing the integrity of structures and equipment without compromising their functionality. RIGGING TECH offers a comprehensive portfolio of NDT services, ranging from conventional methods to advanced techniques, focused on lifting equipment inspection, structural integrity assessment, and weld quality control.
Our team is composed of qualified professionals certified by recognized bodies such as ABENDI/SNQC, PCN and ASNT, with solid experience in the offshore oil & gas sector, ensuring reliability, safety, and compliance with national and international standards.
Ultrasonic Corrosion Mapping
C-Scan is an advanced NDT technique based on automated ultrasonic testing, used for two-dimensional mapping of residual thickness and characterization of wall loss due to corrosion or erosion. Ultrasonic transducers emit high-frequency pulses (typically 1 to 10 MHz) that propagate through the material, and the time of flight and reflected signal amplitude are converted into thickness values, generating color-coded images.
Pulsed Eddy Current
PEC (Pulsed Eddy Current) is an NDT technique based on pulsed electromagnetic induction, designed to detect wall thickness loss from corrosion or erosion in ferromagnetic metals, even when the material is coated with thermal insulation, paint, concrete, or scale. A transmitter coil generates transient magnetic fields that induce eddy currents in the metallic material, allowing estimation of remaining wall thickness without direct contact or coating removal.
Remote Visual Inspection
Videoscopy allows you to "look inside" equipment without disassembling anything. It uses a flexible probe with a high-resolution camera at the tip to inspect hard-to-reach locations. The operator inserts the probe through small openings, valves, or connections, and images appear in real time on screen, revealing the internal condition of the equipment.
Leak Detection
The Vacuum Box test is an NDT method used to verify the leak-tightness of welds and joints in tanks, piping, and structural components. A detector solution (water with surfactant) is applied over the area to be tested, and a transparent box with peripheral sealing is positioned and connected to a vacuum pump. The internal vacuum creates a pressure gradient that forces air through any through-wall discontinuities, indicated by the formation of stable bubbles.
Conventional NDT
Conventional NDT comprises the four fundamental methods most widely employed in industry: Ultrasonic Testing (UT) for internal discontinuities, Magnetic Particle Testing (MT) for surface and subsurface defects in ferromagnetic materials, Liquid Penetrant Testing (PT) for surface cracks in non-magnetic materials, and Visual Testing (VT) for macroscopic discontinuities. They constitute the foundation of any robust asset management program.
Magnetic Flux Leakage
MFL is an NDT technique used primarily for inspection of storage tank floors and large flat metallic surfaces. A set of permanent magnets or electromagnets magnetically saturates the inspected material; in the presence of a discontinuity (corrosion, pitting, localized wall loss), part of the magnetic flux "leaks" outside the surface and is detected by sensors (Hall effect, coils, or GMR), whose amplitude is correlated with defect severity.
Ultrasonic Weld Inspection
PAUT and TOFD are advanced ultrasonic NDT techniques, widely used as substitutes for or complements to industrial radiography for volumetric weld inspection. PAUT uses piezoelectric elements with electronically timed firing, enabling electronic focusing and angular scanning (S-scan). TOFD measures the time of flight of waves diffracted at defect tips for precise height sizing.
Positive Material Identification
PMI is a set of portable analytical techniques for determining the chemical composition of metal alloys in a non-destructive, fast, and reliable manner. It uses X-Ray Fluorescence (XRF) for heavy elements (Cr, Ni, Mo, Cu, etc.) with analysis in 2-10 seconds, or Optical Emission Spectrometry (OES) for complete composition including carbon, phosphorus, and sulfur. It is a critical requirement in quality assurance programs and prevention of failures due to material mix-ups.
Standards & Certifications
All NDT services are performed in accordance with internationally recognized standards and by certified technicians.
Our Process
A systematic approach to ensure reliable and repeatable results.
Scope Definition
Identification of inspection locations and applicable NDT methods based on asset type, material, and service conditions.
Procedure Development
Development of NDT procedures in accordance with the applicable standard, including acceptance criteria and reporting requirements.
Equipment Calibration
Calibration of all NDT equipment per procedure requirements, with traceable calibration certificates.
Systematic Execution
Systematic NDT execution at all specified locations by certified Level 2/3 technicians.
Interpretation & Evaluation
Interpretation of results by certified inspector with evaluation against acceptance criteria.
Reporting & Documentation
Detailed report with findings, photographic evidence, thickness maps, and actionable recommendations.
Ready to Get Started?
Contact our team to discuss your NDT requirements and receive a tailored proposal for your inspection needs.
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