Radiographic Testing (RT) for Large Weldments
Non-destructive testing solutions for internal flaw detection in large components.
Radiographic Testing (RT) is a core non-destructive testing (NDT) method used to inspect the internal structure of welds, castings, and fabricated components. At Openex, we pair precision fabrication with cutting-edge RT to ensure that our large, high-value parts meet the most demanding safety and performance standards.

Our In-House NDT X-Ray Testing Labs
We operate three advanced X-ray testing laboratories to serve large-scale and high-thickness inspection needs. Our largest facility supports parts up to:
- Testing range: 30,000 mm x 6,800 mm x 6,500 mm
- Testing thickness: Up to 200 mm
How Radiographic Testing Works
RT uses either X-rays or gamma rays to penetrate a component and create an image that reveals internal flaws such as cracks, voids, inclusions, or density changes. The test-part is positioned between the radiation source and a detector (film or digital). Differences in material thickness and density affect radiation absorption and are captured for analysis.
We offer multiple RT imaging technologies including:
- Film Radiography
- Real-Time Radiography (RTR)
- Computed Radiography (CR)
- Digital Radiography (DR)
- Computed Tomography (CT) – for 2D and 3D internal views
All procedures comply with strict safety and Local Rule protocols for radiation handling.
Benefits of Radiographic Testing (RT)
- Inspects both surface and subsurface flaws
- Minimum surface preparation required
- Suitable for assembled components
- Provides permanent image records
- 3D imaging capabilities with CT
- Detects corrosion, wall thickness loss, internal cracks
- Enables measurement of internal features without sectioning
Specialists in Heavy-Duty Fabrication
Openex is a full-service manufacturer offering machining, casting, forging, and fabrication of large metal components. We deliver high-performance parts to sectors including:
- Rail Transit
- Energy Infrastructure
- Machinery & Equipment
- Bridges, Ships, and Industrial Structures
- Aerospace and Oil & Gas
RT is a key part of our quality assurance program, giving customers confidence in the integrity of our products before delivery.
Any Inquiry About metal fabrication, feel free to contact us.