Non-Destructive Testing Services (NDT) | UT, RT, MPI

Flawless Internal Integrity

Advanced NDT & Weld Inspection

In mission-critical industries like Oil & Gas, Nuclear Energy, and Maritime Shipping, surface-level quality isn't enough. Sub-surface micro-fissures or slag inclusions in a massive weldment can lead to catastrophic failure under extreme fatigue and pressure.

At Openex, our dedicated in-house Quality Control department utilizes a comprehensive suite of Non-Destructive Testing (NDT) methodologies to evaluate the microscopic integrity of raw materials, machined forgings, and thick-plate structural welds. Operated by our internationally certified ASNT/PCN Level II and Level III technicians, we guarantee full compliance with ASME, API, AWS, and DNV codes without destroying your finished components.

Comprehensive NDT Methodologies

UT Ultrasonic Testing

Using high-frequency sound waves, our UT technicians scan massive forgings and full-penetration welds for internal inclusions, laminations, and porosity. It is incredibly effective for thickness gauging on pressure vessel walls and identifying subsurface discontinuities in heavy plate sections.

Radiographic X-Ray Film Reading of Industrial Weld

RT Radiographic Testing (X-Ray)

Often required by ASME Sec IX for boiler and pressure vessel code compliance. Using specialized industrial X-ray or gamma-ray isotopes, we capture internal imaging of subsea pipeline manifolds, tubulars, and complex pressure joints to verify absolute penetration and root integrity.

MPI Magnetic Flux Evaluation

MT Magnetic Particle Inspection

Highly sensitive for detecting shallow sub-surface cracks and surface discontinuities in ferromagnetic materials. Utilizing electromagnetism and fine magnetic powders (including fluorescent UV evaluations), we easily expose microscopic heat-treating or fatigue cracks.

PMI Alloy Verification (PMI/PT)

With stringent marine requirements, ensuring correct metallurgy is vital. Using XRF analyzers (PMI), we verify exact elemental composition—crucial for tracing Duplex and Super Duplex Stainless Steels. For non-porous metals, Dye Penetrant Testing (PT) reveals microscopic surface fractures invisible to the naked eye.

Frequently Asked Questions

What is the difference between Non-Destructive Testing (NDT) and Destructive Testing? ▾

Non-Destructive Testing (NDT) includes a range of inspection methods that allow us to evaluate the properties and integrity of a material or component without causing any damage. Examples are Ultrasonic and Radiographic testing. Destructive Testing, on the other hand, involves taking a sample of the material (like a weld coupon) and physically destroying it to measure its mechanical properties, such as tensile strength or hardness.

When is Radiographic Testing (RT) typically required over Ultrasonic Testing (UT)? ▾

Radiographic Testing (RT or X-ray) is often mandated by specific industrial codes, such as the ASME Boiler and Pressure Vessel Code, for inspecting critical welds. While both methods can detect internal flaws, RT provides a permanent film record of the weld's interior, which is valuable for quality assurance documentation. UT is often faster and more sensitive to certain types of planar defects, but RT provides a more universally understood visual record of a weld's quality.

What is a Level II or Level III NDT Technician? ▾

These levels refer to the certification and experience of the NDT inspector, typically governed by standards like ASNT SNT-TC-1A. A Level I technician can perform specific calibrations and tests under supervision. A Level II technician is qualified to set up and calibrate equipment, conduct the inspection, and interpret the results according to codes and standards. A Level III technician is a senior expert who can develop NDT procedures, train and certify other technicians, and has a deep understanding of the principles and limitations of various NDT methods.

Non-Destructive Testing