api 5l chs/erw black steel tube

Produce technology: Electrical Resistance Weld

Technology standard API 5L PSL1/PSL2

Outside Diameter (OD): 219.1mm (8”) ~660mm (26”)

Wall Thickness (WT): 4.0mm-19.1mm 15.9 at X80, 19.1 at X60

Pipe Length: 6m-18.5m

D/T ratio: 15-110

In 2007,a modern and world class large diameter electric resistance welding steel pipe mill line was established with main equipments supplied by MILLTECH from Korea with advanced technology and automatic control system integrating with Austrian LINSINGER’ Edge Miller &Milling Cut-off Machine ,American Thermatool’s HF welding machine &seam annealers and online and offline non-destructive testers from NDT Technologies Inc. Canad

Testing for api chs/erw steel tube

Chemical Component Analysis,

Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation),

Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test),

Exterior Size Inspection, Hydrostatic Test, X-ray Test.