Welded Type: SSAW
Grade: 10#, 20#, 45#, A53A, A53b, A106gr.a, A106gr.B
End: Plain End, Spigot & Socket Joint, Beveled, Cut Squ
End Protector: Plastic Pipe Caps
Standard: ASTM, GB, API, JIS, BS, DIN, Yb, Sny, etc
Third Party Inspection: SGS, BV or Others
Transport: by Container or Bulk Vessel
Transport Package: Standard Export Package
Specification: OD Size:219-3200mm Wall thickness (W.T.):5mm-60mm
Origin: China Tianjin
HS Code: 730419
The ratio of the outer diameter to the wall thickness of the spiral welded pipe is less than 20. The welded pipe is mainly used as a petroleum geological drilling pipe, a cracking pipe for petrochemical industry, a boiler pipe, a bearing pipe, and a high-precision structural pipe for automobiles, tractors, and aviation.
Since the rolling direction of the coiled pipe of the spiral welded pipe is not the direction of the vertical steel pipe axis (the pinching depends on the helix angle of the steel pipe), and the rolling direction of the straight steel pipe is perpendicular to the axial direction of the steel pipe, the crack resistance of the spiral pipe material is obtained. Better than straight seam steel pipe.
|Product Name||API series ssaw steel pipe|
|Length:||6m/9m/12m or other size according to the contract|
|Steel Material||Q195, Q215, Q235, Q345 (Chinese Standard. Other Material Can Be Ordered)|
|Usage||Used For Gas, Petroleum, Water ,Oil, Structure And Sewage|
|Ends||Plain or Beveled (Can be Protected By Plastic Pipe Cap)|
|Surface||Bared Or Paint With Oil, Bitumen,1-3 layer PE(Outside Or Inside Anti-Corrosion Treatment Can Supply)|
|Inspection||With Hydraulic Testing, Eddy Current , Infrared or X-Ray TestAlso With Chemical And Physical Property Inspect|
|Technique||Hot Rolled and SAW/ERW/SSAW|
|Welded Line Type||Spiral|
|Package||In Bulk, Or Other Method According To The Contract|
|Date of Delivery||Less Than 15/20/25/30/40/50/60 Days According To The Quantity|
|Port of Shipment||Xingang,China|
|Others:||We also supply pipe fittings for example screws and flange. Our products are high quality but low price.
Wish you contact us.
1. The spiral angle of the spiral welded pipe weld is generally 50-75 degrees, so the synthetic stress at the spiral weld is 60-85% of the main stress of the straight welded pipe. Under the same working pressure, the thickness of the spiral welded pipe of the same pipe diameter can be reduced compared with the straight welded pipe.
2. When this pipe is blasted, since the normal stress and the synthetic stress of the welded joint are relatively small, the blasting hole generally does not originate from the spiral welded joint, and its safety is higher than that of the straight welded pipe.
Raw material inspection→stocking→unwinding→leveling→shearing, butt welding→milling→delivery→forming→inside and outside welding→ultrasonic patterning→x-ray and inner weld inspection→hydraulic pressure test→chamfering→pipe end expansion →Weld seam ultrasonic inspection→tube end filming→finished product inspection (appearance, size, mechanics, corrosion)→weighing→marking mark→final spiral steel pipe storage