Testing

Testing services are provided by the Laboratory sector, which is accredited according to SRPS ISO/IEC 17025:2017, Accreditation Certificate no. 01-035, Accreditation Body of Serbia. The high expertise of the employees, good equipment and good laboratory practice form the basis of a professional approach that achieves a good relationship with the clients of laboratory testing services.

 

The advantage of our Laboratory is the possibility of testing in the Institute premises as well as on site, at the client’s company.

 

GENERAL BUSINESS TERMS OF THE WELDING INSTITUTE LABORATORY

 

LABORATORY FOR NON-DESTRUCTIVE TESTING – NDT

The non-destructive testing laboratory of the Welding Institute with over 30 experienced, certified operators and over 20 field service vehicles has grown into the largest laboratory in Serbia and the Balkans.

 

Testing of base materials and welding joints:

  • Visual Testing (VT)
  • Magnetic Particle Testing (MT)
  • Penetrant Testing (PT)
  • Radiographic Testing (RT)
  • Ultrasonic Testing (UT)
  • Ultrasonic Thickness Testing (UTT)
  • Leak Testing (LT)
  • Electroluminescence Testing (EL)
  • Computed radiography (CR)
  • Ultrasonic testing – using the "Phased Array" method (UT-PA)

NDT Laboratory chief:

Milan Milić
Mob.phone: +381 62 80 23 227
E-mail: milanmilic@zzz.co.rs

LABORATORY FOR MECHANICAL AND METALLOGRAPHY TESTING – MMI

Mechanical testing

 

 

 

Testing of base materials and welding joints:

  • Tensile testing
  • Impact testing
  • Hardness testing: static and dynamic
  • Bend testing
  • Fracture toughtness testing
  • Technological pipe testing

Metallography testing

 

 

 

Testing of base materials and welding joints:

  • Microstructure and macrostructure testing
  • Microstructure testing using the replica technique
  • Evaluation of microstructure degradation during creep
  • Determination of ferrite and austenite steel grain size
  • Determination of steel decarburization depth
  • Determination of the composition of nonmetallic inclusions in steel
  • Determination of cast iron microstructure
  • Intergranular corrosion testing

MMI Laboratory chief

Vladan Jeremić, M.Sc, IWE, IWI-C

Mob.phone: + 381 62 8023220

E-mail: vladanjeremic@zzz.co.rs

LABORATORY FOR CHEMICAL AND PHYSICAL TESTING – CPT

Chemical testing

 

 

 

Metal and alloys testing:

  • o Cast iron and steel testing using optical emission spectrometry (Spark-OES)
  • o Testing of metallic and nonmetallic materials using X-ray fluorescence spectrometry (XRF)

Physical testing

 

 

 

Testing of coatings on metal substrates:

  • Cross-cut testing
  • Determination of film thickness
  • Pull-off test for adhesion

CPT Laboratory chief

Goran Stupar, M.Sc, IWE
Mob.phone: +381 62 80 23 250
E-mail: goranstupar@zzz.co.rs

LABORATORY FOR GEOMECHANIC TESTING SOIL

 

 

The Welding Institute performs measurements of deflections using a portable impulse plate as part of the Laboratory for Geomechanic testing Soil.

GTS Laboratory chief

Nikola Stanković, B.Sc.