Off-Line Weld Inspection


SOFRATEST provides Ultrasonic inspection solutions for off-line weld inspection of ERW pipes, outside the production line. Various types of defects are detected, including:

  • Internal/External longitudinal and transverse defects in the weld (several configurations of probe arrangements available: I, K, X)
  • Lamination defects in the Heat Affected Zone (HAZ), in the full body, and in the ends of the pipe
  • Different kinds of defects in the middle of the weld


To ensure the proper functioning of the system, the loss of coupling is also detected.

SOFRATEST’s designed inspection head perfectly adapts to the different curvatures and diameters of the pipes.

The inspection head can slide to a standard pipe positioned on a calibration support to perform calibration.

Phased Array sensors can be seamlessly integrated into the SOFRATEST system.

The control system can automatically adjust itself in case of deviation of the area to be controlled from the inspection head, thanks to the presence of a pilot line tracking system.

An additional function allows the rotation of the ERW pipes, resulting in a complete inspection of the pipe body.

Our equipment is adaptable based on the diameter, thickness, and length of the pipe, enabling a 100% inspection of the product.


With our robust and user-friendly software, the results of the Ultrasonic inspection are displayed in real-time.

Traceability is ensured by our production software, creating comprehensive and customizable inspection reports.

The system screen is remotely accessible, providing a clear, global view of the ongoing inspection and allowing necessary adjustments to be made in real-time.

Download our ERW brochure for more information!

All our Ultrasonic systems comply with European and international standards, including ASME Section V, ISO 10893-11, 10893-8, 10893-10, API 5L, API 5CT, ASTM E317, and more.

SOFRATEST Added value

Equipment Resistant to Harsh Conditions

100% Adaptable Systems

Pipe Position Tracking System

Fast Inspection Speed

Dynamic Calibration

Customized Inspection Report

Our international references