The production flow of LSAW Steel Pipesis: firstly mill the edge of medium plate and put it into pressure forming device, form it into a circle according to the mode of J.C.O, and then preweld it after seam butting by seam butting device and then start the double-sided submerged arc welding. After nondestructive detection one by one, the products could be used as large-caliber liquid conveying pipe such as petroleum, natural gas and others. LSAW steel pipe is produced by adopting the internationally advanced technology which has been introduced in recent days. The production lines could provide the steel pipes with the diameter of over 610mm and wall thickness of over 15mm that could not be manufactured by ERW steel pipe production line. The LSAW steel pipes could be 2150mm in max. caliber and 30mm in max. wall thickness.
We produce LSAW steel pipes production line in China.we adopts continuous axis contorting J-C-O（J-ing, C-ing and O-ing）process with characteristics of high forming accuracy and efficiency as well as balanced distribution of forming stress.we has the advantages of wide specifications and can produce pipes in any size within its production range.
|Outside Diameter :||Φ21-Φ863mm (1/2″-34″)|
|Wall Thickness :||2.0-55mm|
|Ouality Standards :||API、BS、ASTM 、JIS、DIN、GB 、ISO、DNV|
|Length :||3-12.2m (10′-40′)|
|Grades :||GB/T9711 L190-L555(API 5L A-X80)|