For the quality control of the row materials and final products (welded steel pipes) FZC 11 OKTOMVRI A.D. Kumanovo posses equipment and highly qualified staff. These resources allow us to implement different testing and controls defined by the certain standards and technical conditions for manufacturing and shipment of final products.

Destructive Testing

  • Chemical Analysis
  • Tensile Test on base Material & Weld
  • Ring Tensile Test
  • Charpy Impact Test
  • Flattening Test
  • Bending Test
  • Expanding Test
  • Weld bend test
  • Macrographinc & Metallographic Examination
  • Hardness Test

Non-Destructive Testing:

  • Hydro-static Test
  • Dimensional Inspection
  • Visual examination of the Steel Pipe Surface
  • Ultrasonic Testing
  • Eddy current  Testing
  • Radio-graphic Testing
  • Penterant Testing

Besides above-mentioned tests that we perform on steel sheets, pipes and section, we also conduct a series of coating protection tests:

  • Coating Thickness Determination
  • Porosity – Continuity
  • Bond strength
  • Impact strength
  • Percentage elongation at failure
  • Indentation hardness
  • Coating resistivity
  • Heat Ageing
  • Light Ageing
  • Additional Tests Specific for Appropriate Coating Type

Quality Documents:

Test Reports by type

  • Declaration of compliance “type 2.1″ – EN 10204
  • Test report “type 2.2″ -EN 10204
  • Inspection certificate “type 3.1″ -EN 10204
  • Inspection certificate “type 3.2″ -EN 10204
  • EC –Declaration of conformity with CE marking