LSAW Stalen Buis

Straight seam welded steel pipe , Longitudinal Submerged-Arc Welded Steel Pipe

The advantages of LSAW (Longitudinal Submerged Arc Welding) pipes are straight welding. They are widely used in heavy industry to convey oil, coal slurry, enz. As a ISO 9001:2008 company, we guarantee not only quality but also services.

Werkwijze: LSAW - UO(UOE), RB(RBE), JCO(JCOE, COE); DSAW - Double Submerged Arc Welded
Gebruik: Used for low pressure liquid delivery, such as water, gas, en olie.
Standaard: API 5L, API 5CT, ASTM 53, EN10217, VANAF 2458. IS 3589, GB / T3091, GB/T9711
Certificaat: API 5L PSL1 / PSL2, API 5CT
Uit de Diameter: 323.9mm -1820mm(12''-72'')
Wanddikte:5.0 - 50mm
Lengte:6 – 12m
API 5L: GR B, X42, X46, X56, X60, X65, X70 ASTM A53: GR A, GR B, GR C EN: S275, S275JR, S355JRH, S355J2H GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360- L555
Oppervlak: Fusion bond Epoxy coating, Koolteer Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement
Test: Chemische componenten analyse, Mechanische eigenschappen (Ultieme treksterkte, Vloeispanning, Rek), Technische eigenschappen (afvlakken van de test, Buigtest, Klap Test, Botsproef), Oppervlakte Inspectie, Hydrostatische Test, X-ray Test.
Mill Test Certificate: NL 10204 / 3.1B


UOE LSAW PIPESThe UOE mill features the most advanced technology and process, achieves high production efficiency, stable product quality and is equipped with complete inspection equipments.
Prodution LineUOE molen neemt U & O vorming, the formed pipes are welded inside through five internal welding stations with three wires, and welded outside through four external welding stations with three wires. In accordance with different requirements of the customers, the welded pipe can be expanded either by mechanical or hydrostatic expander to improve dimensional accuracy, and eliminate residual stress.
bestekBuitendiameter: Φ508mm- 1118mm (20"- 44")

Wanddikte: 6.0-25.4mm(1/4"-1")
Lengte: 9-12.3m (30'- 40')
Grades: API 5L  A-X90,GB/T9711 L190-L625


Prodution LineDit is grote diameter longitudinale verzonken boog gelast (LSAW) pijp productielijn in China. The mill adopts progressive bending process, Featuring gelijkmatig verdeeld vormen van stress, hoge uniformiteit van de dimensie, infinite sizes variation&wide poduct range, en hoge flexibiliteit, enz.
bestekBuitendiameter:  Φ406mm- 1626mm (16" - 64" )

Wanddikte:  6.0- 75mm (1/4" - 3" )
Lengte:  3-12.5m ( 10'- 41' )
Grades:  API 5L A-X100, GB/T9711 L190-L690


Production LineThis is the first large diameter longitudinal submerged arc welded (LSAW) pijp productielijn in China. The mill adopts continuous axis contorting J-C-O forming process with characteristics of high forming accuracy and efficiency as well as balanced distribution of forming stress. The mill has the advantages of wide specifications and can produce pipes in any size within its production range.
bestekBuitendiameter:Φ406mm- 1829mm (16" - 72" )

Wanddikte:6.0-30mm(1/4" -11/6")
Lengte:3-12.2m ( 10'- 40' )
Grades:API 5L A-X80, GB/T9711 L190-L555