Ferizaj, Kosovo · since 1972

Steel pipes and steel structures for infrastructure.

IMK manufactures spiral welded steel pipes for water, gas and oil pipelines — and engineers, fabricates and erects steel structures for regional, European and Asian markets.

  • Ø 219.1–2032 mm
  • API Monogram
  • Tested up to 211 bar
Founded
1972
Pipe produced
12,000km
Steel processed
≈ 1.3Mt
Diameter range
219.1–2032mm
Hydrostatic test
211bar
  • API Monogram
  • EN 10217-1:2019
  • ISO 9001:2015
  • ISO 14001:2015
  • ISO 45001:2018
  • ISO 3834-2:2021
  • DIN 30673
  • AWWA C210
  • AWWA C213

How it is made

From steel coil to tested pipe, in eight steps

Inspection starts at the weld seam and ends in the laboratory.

Full process
  1. 01

    Steel coil

    The coil is unwound and the strip levelled before it enters the line. The steel grade is chosen to suit the project standard.

  2. 02

    Edge preparation

    The strip edges are machined so the weld seam is uniform along the whole length.

  3. 03

    Spiral forming

    The strip is wound into a helix at a set angle. The angle determines the pipe diameter.

  4. 04

    Inside and outside welding

    The spiral seam is welded from the inside and the outside while the pipe is formed continuously.

  5. 05

    Cutting to length

    The continuous pipe is cut to the length the project requires.

  6. 06

    Ultrasonic inspection

    The seam is checked automatically by ultrasound, followed by visual inspection outside and inside.

  7. 07

    Hydrostatic test

    The pipe is filled with water and pressure-tested up to 211 bar, to the applicable standard. The ends are inspected after the test.

  8. 08

    Coating and laboratory

    The surface is blast-cleaned to Sa 2½ and coated inside and out. Samples undergo mechanical and chemical tests in the laboratory.

Certificates

Working to the standards international projects require

API MonogramLicence from the American Petroleum Institute
EN 10217-1:2019Welded steel tubes for pressure purposes
ISO 9001:2015Quality management system
ISO 14001:2015Environmental management system
ISO 45001:2018Occupational health and safety
ISO 3834-2:2021Quality requirements for fusion welding

Selected projects

Structures fabricated and erected by IMK

  • Steel gantries

    Bechtel Enka

  • Bridge

    MCE

    Span 53 m

  • Commercial building

    Supermarket

    Switzerland

  • Industrial building

    Industrial hall

    Kosovo · 10,000 m² · 950 t

Planning a pipeline or a steel structure?

Send us the specification — diameter, length, standard or drawings — and our technical team will get back to you.