LSAW (Longitudinally Submerged Arc Welded Steel pipes) in leaflets plate as raw material, the steel plate in the mold or molding machine pressure (volume) into using double-sided submerged arc welding and flaring from production.The coherence of cutter head and plate clamping system guarantees the invariable parameters during the entire milling process; accordingly it ensures the milling quality and lays a good foundation for the success of subsequent welding.
Usage of LSAW steel pipes:
Contents [hide]
1 Usage of LSAW steel pipes:
2 Standard:
3 Steel grade
4 Certificates
5 Size range by usage:
6 Pipe Coating:
LSAW Steel Pipe For Oil & Gas pipeline
LSAW Steel Pipe For Construction
Roller Pipe
Standard:
API Spec 5L
ASTM A252-89, ASTM 53
EN10217, EN10219
GB/T9711.1,GB/T9711.2 or BS, JIS, IS
Steel grade
API 5L: GR A, GR B, X42, X46, X56, X60, X65, X70
ASTM A252 GR 1, GR 2, GR 3
ASTM A53: GR A, GR B, GR C, GR D
BS 4360: Grade 43, Grade 50
EN: S275, S275JR, S355JRH, S355J2H
Certificates
API 5L PSL1,PSL2 , API 5CT, ISO ,CE,EN 10204/3.1B
ISO9001:2008, ISO14000:2004
Size range by usage:
Usage O.D.(mm) W.T.(mm) Length(m)
Oil &gas pipeline 406-1524 6-40 8-12.1
for Construction 350-1600 6-60 6-12
Roller pipe 1200-3800 12-120 <=3.2
In addition to above specification, the pipes can be produced according to customer’s requirements.
Pipe Coating:
Coating mills apply pipe coatings to protect the line pipe from corrosion.
HDPE: High-density polyethylene jacket pipe
3PE/2PE: PE anti-corrosion pipe three-tier structure
3PP/2PP: PP three-tier structure of anti-corrosion pipeline
Pipe cement mortar lining
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