تامین لوله های EFW

EFW (ELECTRIC FUSION WELDED) PIPES

A combination  of specially  designed  equipments  like 1600MT  press  brake  machine,  multiple  rolls bending  machine, welding installations  for outside, inside and circumferential  welding, size calibrating press, solution annealing furnace and a host of other related machinery, is employed to manufacture  pipes used in critical applications  like refineries, fertilizers, LNG terminals, cross country pipe lines etc.

EFW Pipes Product Range

These products can be supplied in the following grades:

Austenitic  Grades:                     TP304, 304L, 316, 316L, 316Ti, 317L, 321, 321H, 347, 347H. Ferritic Grades:                         TP409

Duplex:                                       UNS 31803, UNS 32205, UNS 32304, LDX2101

Edges of the Stainless Steel Plate cut to size are prepared and pre-bent followed by roll forming into pipes. It is prewelded  and then the final welding is done using filler material. All welders, welding operators and weld procedures are qualified to the ASME Boiler and Pressure Vessel Code, Section-IX. Heat treatment is done on continuous roller hearth furnace or batch furnace. The pipe is nowsized, pickled & passivated.

FIVE CLASSES OF ASTM A-358/ A-358M SUMMARIZED REQUIREMENTS