OKOndt GROUP remains a reliable provider of high-quality non-destructive testing (NDT) solutions and services tailored to the needs of various industries. In May 2025, the company took part in the Railway Interchange exhibition in the USA, where it presented UT and ET rail testing Systems designed for railway track inspection under high-speed conditions with minimal traffic disruption.

OKOndt GROUP specialists and the CEO (second from the left) at the Railway Interchange 2025 exhibition in the USA

The ETS2-73 eddy current flaw detector for rail testing , showcased at the Railway Interchange 2025 exhibition in the USA

OKOndt GROUP team at Railway Interchange 2025, USA

OKOndt GROUP booth at Railway Interchange 2025 showcasing NDT (non-destructive testing) solutions, USA

Eddy-current calibration blocks

Calibration Blocks for Holes Testing
 
 
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Designation

Defect parameters

Roughness of operating surface, µm

Overall dimensions, mm/in.

 

Material

 

Field of use

 

Note

Length, mm/in.

Width, mm/in.

Depth, mm/in.

 

RS2353.12-5H/0-FLN/0.5/AL

 

Full length

 

0.1 / .004

 

0.5 / .02

 

0.63

 

150 x 50 x 10 /

6 x 2 x .4

 

Aluminium alloy

 

Aircraft, power, transportation, engineering industries

Rectangular calibration block with several holes

 

RS2353.12-1H/0-CN/0.76/AL

 

0.76 / .03

 

0.1 / .004

 

0.76 / .03

 

0.63

 

ø 24 × 10 /

Ø1 x .4

 

Aluminium alloy

Cylindrical calibration block with one hole

 

RS — reference standard;

2353 — manufacturer company code;

.12 — calibration block for holes testing;

...H — number of holes;

/0 — number of flawless holes;

СN/FLN — defect type (CN – corner notch, FLN – full length notch);

0.5/0.76 — defect dimensions;

AL/FE/SST/TI — material.