Products

(SAW) welded pipe production by submerged arc method is based on using tandem technique in joining the edges of hot rolled steel coils by welding which take spiral form after passing through performing and forming rolls.

Diameter        :   219,1 - 3.048 mm

Thickness      :  4 - 25 mm

Pipe length    :   6 - 24 m

Material          :  API 5L:   Grade A,   B,   X42,   X52,   X60,   X65,   X70,   X80
                     EN 10025:   ST 37 (S235 JR),   ST 44 (S275 JR),   ST 52 (S355 JR)

Pipe Production Standarts

Petroleum or Gas Pipes

:  API 5L   **   EN 10208   **   DIN 17172   **   GOST 20295

Water Line Pipes

:  AWWA C 200   **   EN 10217-1   **   DIN 2460   ***   BS 534   **   UNI 6363   **   DIN 1626

Piling

:  ASTM A 252

General

:  BS 3601   ****   NF A 49150   **   DIN EN 10224   ****   ASTM A 53
Pipe Joint Details

Bevelled   **   Flanged   **   Spherical socket   **   Spigot and socket

Spherical Socket Joint: Provides the possibility of a rotation 10 degree at the pipeline without the utilization of any special fittings. Steel pipes are welded from outside after proper erection according to required angle.

Spigot and Socket Joint: Especially used for the steel pipes inside coated with cement mortar. Steel pipes are welded from outside after erection.

Lining and Coating Specifications

Air, water, soil and chemical substances and corrosive mediums effect the steel pipe as they effect everything. These effects can be eliminated by coating and lining of the pipe with suitable materials.

Surface Preparation: Prior to the application of the coating, the surface of the steel pipes must be cleaned to make them free of impurities. For this purpose, internal and external surface of the pipes are shot-blasted to a standard degree of clean SA 21/2 with a special care.

External Coating

Epoxy Coating                       : AWWA C-210     **     NFA 49709     **     EN 10289

Polyethylene Coating          : DIN 30670     **     NFA 49710

Polypropylene Coating       : DIN 30678     **     NFA 49711

Bitumen Coating                  : DIN 30673     **     BS 534

Coal-tar Enamel Coating    : AWWA C-203

Lining

Epoxy Lining                         : AWWA C-210   **   NFA 49709   **   TS EN 10289

Bitumen Lining                    : DIN 30673   **   BS 534

Cement Mortar Lining       : AWWA C-205   **   BS 534

Quality Control/Assurance

The quality control system including all production processes starting from raw material and continuing with welding wire and flux till to transportation. 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.

* Automatic Ultrasonic Inspection
* Hydrostatic Test
* Radioscopic Inspection
* Manual Ultrasonic Inspection
* Magnetic Particle Inspection
* Liquid Penetrated Inspection
* X-Ray Film Radiographic Inspection
* Dimensional Inspection
* Tensile Test
* Guided Bend Test
* Charpy Impact Test
* Hardness Test
* Chemical Analysis
* Drop Weight Tear Test
* Polyethylene / Polypropylene Adhesion Test
* Polyethylene / Polypropylene Elongation Test


 
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