LSAW Steel Pipe

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, etc.. As a ISO 9001:2008 UNTERNEHMEN, we guarantee not only quality but also services.

Process: LSAW - UO(UOE), RB(RBE), JCO(JCOE, COE); DSAW - Double Submerged Arc Welded
Verwendungszweck: Wird für die Niederdruck-Flüssigkeitsabgabe, such as water, Gas, und Öl.
Standard: API 5L, API 5CT, ASTM 53, EN10217, DIN 2458. IST 3589, GB / T3091, GB / T9711
Zertifikat: API 5L PSL1 / PSL2, API 5CT
out Durchmesser: 323.9mm -1820mm(12''-72'')
Wandstärke:5.0 - 50mm
Länge: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
Oberfläche: Fusion Bond Epoxy-Beschichtung, Kohle-Teer-Epoxy, 3PE, Vanish Coating, Bitumen-Beschichtung, Black Oil coating as per customer’s requirement
Prüfung: Chemische Analyse, mechanische Eigenschaften (Zugfestigkeit, Streckgrenze, Verlängerung), Technische Eigenschaften (Abflachung Test, Bigsamkeitstest, Blastestverlust, Impact Test), Äußere Größe Inspektion, Hydrostatische Prüfung, Röntgenprüfung.
Mühle-Test-Zertifikat: EN 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 LinieUOE Mühle nimmt U & O Bildung, 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.
SpezifikationenAußendurchmesser: Φ508mm- 1118mm (20"- 44")

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


Prodution LinieDies ist große Durchmesser längs getauchten Bogen geschweißt (LSAW) Rohr-Fertigung in China. The mill adopts progressive bending process, Featuring gleichmäßig verteilt bilden stress, hohe Gleichmäßigkeit der dimension, infinite sizes variation&wide poduct range, und hohe Flexibilität, etc..
SpezifikationenAußendurchmesser:  Φ406mm- 1626mm (16" - 64" )

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


Production LineThis is the first large diameter longitudinal submerged arc welded (LSAW) Rohr-Fertigung 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.
SpezifikationenAußendurchmesser:Φ406mm- 1829mm (16" - 72" )

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