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Spiral welding process is totally different with straight welding. A continuous full penetration metal inert gas weld overlay is used to rebuild or repair damage from wear, erosion, corrosion or cracking, or to enlarge the dimensions of a component on a mating part during spiral welding process.
SSAW Spiral Welded Steel Pipe stands for Spiral submerged arc welding. Its forward direction and forming pipe centerline hose reel molding angle which could be adjusted according to clients special requirements, side molding edge welding and weld them into a spiral line.
You may find the key aspects of SSAW Spiral Welded Steel Pipe in below table.
| STANDARD | ASTM, GB, API, JIS, BS, DIN, YB, SNY, etc |
| MATERIAL | A53A,A53B,A106Gr.A,A106Gr.B,A106A,A106B,ST52,ST358,16Mn, Q235, Q195, Q345, Q215, API 5L Gr.B,Gr.65,Gr.60,Gr.70, X42, X52,X60,X65,X70,X80,etc |
| SPECIFICATION | Outer diameter: 219mm-3620mm Wall thickness: 2.5mm-30mm Length: 6m-12m or as requested |
| SEAM | SAW (Spiral welded), SSAW(Spiral submerged-arc welded),HSAW,(Helical Submerged Arc Welded), ERW, JCOE, LSAW, UOE |
| SURFACE | Black painted, PE/PVC/PP coated, Galvanized, color coated, anti-rust varnished, Anti-rust oiled, checkered, epoxy coating, etc. |
| END | plain end, spigot & socket joint, beveled, cut square, flanged, piling shoes |
| END PROTECTOR | 1) Plastic pipe cap 2) Iron protector |
SSAW Spiral Welded Steel Pipe application:
SSAW Spiral Welded Steel Pipe is mainly used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction.
Threaded steel pipe for liquid transportation: water supply and drainage.
GK inspection steps of SSAW Spiral Welded Steel tube:
Raw material inspection---leveling inspection---butt welding inspection---forming inspection---internal welding inspection---external welding inspection---pipe cutting inspection---ultrasonic inspection---bevel inspection---external dimension inspection---X-ray inspection ---Hydraulic test---Final inspection
