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Radiographic Testing (RT)

Radiographic testing can be used to detect internal defects in castings, welds or forgings by exposure of the construction to x-ray or gamma ray radiation. Defects are detected by differences in radiation absorption in the material as seen on a shadow graph displayed on photographic film or a fluorescent screen X-rays, generated electrically, and Gamma rays emitted from radio-active isotopes, are penetrating radiation which is differentially absorbed by the material through which it passes; the greater the thickness, the greater the absorption.

Magnetic Particle Testing (MT)

Baklang accomplishes Magnetic particle testing by inducing a magnetic field in a ferromagnetic material and then dusting the surface with iron particles. The surface will produce magnetic poles and distort the magnetic field in such a way that the iron particles are attracted and concentrated making defects on the surface of the material visible.
This method is suitable for the detection of surface and near surface discontinuities in magnetic material, mainly ferritic steel and iron.


Baklang offers ultrasonic testing that uses high frequency sound energy to conduct examinations and make measurements. Ultrasonic inspection can be used for flaw detection/evaluation, dimensional measurements, material characterization, and more.
This technique is used for the detection of internal and surface (particularly distant surface) defects in sound conducting materials.

Dye Penetrant Testing

The dye penetrant testing can be used to locate discontinuities on material surfaces. A highly penetrating dye on the surface will enter discontinuities after a sufficient penetration time, and after removing the excess dye with a developing agent, the defects on the surface will be visible.
This method is frequently used for the detection of surface breaking flaws in non-ferromagnetic materials.


  • To offer excellent cutting edge Advanced NDT services, Baklang is in strategic partnership with SIEVERT
  • Sievert is a world leader in advanced NDT services
  • With over 250 projects and 25,000 Kms of pipeline testing by crawler radiographer and 5000 Kms by AUT including Offshore, today Sievert is a force to reckon with in the international arena of NDT for large scale projects
  • Continuous operations at 162+ locations around the world, with a 1500+ skilled workforce and no more than 700 state-of-the-art NDT equipment SIEVERT is clearly one of the front runners in the global NDT industry and an emerging player in Vendor inspection and Expediting services.

Picture21 Picture21 - SIexert Technicians at work Picture20


Baklang Group is a nationwide service provider for technical verification, Inspection, testing and conformity assessment instilling confidence in clients. Reliability and Integrity Management can help to ease these concerns
Picture6 Baklang staff of expert and experienced surveyors evaluate operational risks, assessing the feasibility projects by reviewing the technical literature and undertaking on-site inspections. Typically, a warranty survey may cover the towage of an offshore platform or FPSO, the loading and stowage of drilling pipe bundles or verifying that the location is suitable for the proposed installation.
Picture2 Corrosion control starts with material selection for life cycle performance. The selection considers materials options and overall cost (Capex and life cycle Opex) that would yield an optimum material choice together with corrosion mitigation measures during operations where so required. E.g. Pipeline material could be carbon steel with corrosion allowance together with corrosion inhibitor application in favour of exotic corrosion resistant stainless steel.

Corrosion monitoring involves measurement metal loss under various operating conditions to determine corrosion rates, fluid testing for corrosive level and inhibitor efficiency, and overall corrosion control effectiveness.

Picture8 Process equipment and facilities in Oil and Gas production require regular, periodic inspection to ensure fitness-for-service in operations. Thereby proactive measures can be taken to prevent or at least minimize incidents of equipment failure and associated production down time. The inspection schedule is usually incorporated into an inspection and maintenance plan covering long term and short term requirements. However, an overall inspection programme involving a complete cycle of inspection can be unduly expensive and time consuming. In reality, it is found that some process elements would not require as much inspection as may be allotted to them, while others would require more frequent inspection. Hence there’s need to prioritize the activities in order to realize the benefits of the inspection program and, at the same time, saves costs.
Picture5 Repairs are required from time to time for failed or damaged components in an operating plant. Such damage usually occurs during normal operations as a result of wear-and-tear, corrosion damage, fracture, fatigue, material failure, etc. Examples include process piping corrosion leak, valve passing, cracks on nozzles of pressure vessels, impact damage on exposed surfaces, high temperature creep failure, etc. In some cases, plant shut-down is required to enable repairs to be done. Prompt response and action is therefore required from plant personnel and allied contractors.