Spiral welded pipe: It is made by rolling a low carbon carbon structural steel or a low alloy structural steel strip into a tube blank at a certain angle of a helix (called a forming angle), and then welding the pipe seam, which can be used in a narrower manner. Strip steel for the production of large diameter steel pipes. The specification shall be expressed by the outer diameter * wall thickness. The welded pipe shall ensure that the hydraulic pressure test, the tensile strength of the weld and the cold bending performance are in compliance with the regulations.

Product Specification:

Pipe Type: SSAW Pipe,SSAW Steel Pipe,Spiral Steel Pipe,Welded Spiral Pipe

Specification: OD:219.1mm-3500mm

                     WT:6mm-25mm

                     LENGTH:6mtr-18mtr,SRL,DRL

Standard & Grade: ASTM A53 Grade A/B/C,AWWA C200

End:Beveled Ends,Square Cut

Surface:Bare,Lightly Oiling,Black Painting,Anti-corrosion Coating(FBE/2PE/3PE)

Packing:In Bulk,Ends Protector on both Sides,Waterproof Materials Wrapped

Flow Chart:

Material inspection → Vertical snip → Roll unfolding → Smoothing → Cutting and welding → delivery → molding → inside and outside welding → outside surface inspection →steel pipe amputation → solder and clinker cleaning →opposite weld soldering / supplementary manual ultrasonic inspection → X-Ray inspection → inside surface inspection welding → nozzle bumishing → nozzle machining → hydraulic pressure → length and weight measuring → finished product inspection → oil coating → marking → store up

Product Photos:
 

Standard and Classification of SSAW Steel Pipe

Classification	Standard	Main Products
Line Pipe	API 5L PSL1/2	Line pipe
Steel Pipe for Fluid Service	ASTM A53	Black and hot-hipped galvanized welded and seamless steel pipe
	BS EN10217-2	Welded steel tubes for pressure purposes - delivery technical conditions - part2: Electric welded non- alloy and alloy steel tubes with specified elevated temperature properties
	BS EN10217-5	Welded steel tubes for pressure purposes - delivery technical conditions - part5: submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties
Steel Pipe for Ordinary Structure	ASTM A252	Welded and seamless steel pipe piles
	BS EN10219-1	Cold formed welded structural hollow sections of non-alloy and fine grain steels - part1: Technical deliver t conditions
	BS EN10219-2	Cold formed welded structural hollow sections of non-alloy and fine grain steels - part2: tolerances dimension and sectional properties

 

There areSome detailed specifications of spiral steel pipe that we produce now for our customers all over the world.

Outer Diameter(mm)	Wall Thickness(mm)	Length(m)
219	6~8	12
273	6~10	12
325	6~14	12
377	6~14	12
426	6~16	12
478	6~16	12
508	6~18	12
529	6~18	12
610	6~19	12
630	6~19	12
720	6~22	12
820	7~22	12
920	8~23	12
1016	8~23	12
1020	8~23	12
1220	8~23	12
1420	10~23	12
1620	10~23	12
1820	10~25.4	12
2020	10~25.4	12
2200	10~25.4	12
2420	10~25.4	12
2620	10~25.4	12

Packaging & Delivery:

Packaging Details

Loosed PCS/nylon rope(for the coating pipes)

Port: Tianjin, China

Quality Management  

We have always been inspecting and monitoring the quality through process at control points and conducting strict inspections at every step, resulting to its high-quality products in line with world standards and customers request.

Raw material inspection: dimension and tolerance check, appearance quality check, mechanical properties testing, weight check and raw materials quality assurance certificate check

Semi-finished goods inspection: physical and chemical inspection, leakage magnetism and ultrasonic inspection

Finished goods inspection: dimension and tolerance, appearance quality check and mechanical properties testing

Inspection before ex-factory: We arrange our QC staff to manufacture's plant for final quality and packing inspection each time before we deliver goods to port for shipping, and the connected sales staff will be with QC staff to make sure we did everything fully and strictly meet customer's requirements.