Ak Çelik Boru, has a quality control system including all production processes starting from raw material and continuing with welding wire and flux till to transportation.

Ak Çelik Boru, by establishing a detailed Quality ISO 9001, Environment ISO 14001, Occupational Health and Safety OHSAS 18001 management systems aiming to be a leader in its own market competition as a major principle.

Quality Control is Ak Çelik Boru’s one of the most important function that all the required tests and inspections are carried out in compliance with the customer requirements and related standards by using modern inspection and testing equipments.


1. Automatic Ultrasonic Inspection
2. Hydrostatic Test
3. Real Time Radiography Inspection
4. Off-Line Ultrasonic Inspection
5. Manual Ultrasonic Inspection
6. Magnetic Particle Inspection
7. Liquid Penetrant Inspection
8. X-Ray Film Radiographic Inspection
9. Dimensional Inspection
10. Mechanical Laboratory Tests

a) Tensile Test
b) Guided Bend Test
c) Charpy Impact Test
d) Hardness Test
e) Chemical Analysis
f) Metallographic Inspection
g) Drop Weight Tear Test

11. Coating Laboratory Tests

a) Glass Transition Temperature Test
(DSC- Differential Scanning Calorimeter)
b) Melt Flow Index Meter
c) Cathodic Disbonding Testi
d) Indentation Hardness Test
e) Polyethylene / Polypropylene Adhesion Test
f) Polyethylene / Polypropylene Elongation Test
g) Transverse Electric Resistivity Test
h) Holiday Test

12. HIC (Hydrogen Induced Cracking) Test Laboratory

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