Carbon Welded Seamless Spiral Steel Pipe Round Metal Pipe for
Pipeline Construction
What is a spiral steel pipe?
What is a spiral steel pipe spiral is a double pipe wound at room
temperature, which is made by welding the pipe and using the lower
wire bending steel coil bending process. Double-wire double-sided
submerged arc welding process
(Making forming corners) Rolled to tube, made from welded joints,
can be made into larger diameters from narrower production tubes.
During the welding process, the plate is deformed evenly, the
streamline is small, and the surface has no scratches. The
thickness of the strip has more flexibility. The flexibility of the
tube is an unparalleled advantage in manufacturing and the needs of
these small sizes, especially when you need to meet the high-end
thick tube.
After unwinding plate inspection, pass flat plate inspection: enter
the unwinding plate production line, first perform full plate edge
inspection
Milling and finishing: the flat steel cutting board is rolled to
make the original, and then the milling machine performs
double-sided steel milling, and the board edge inspection is
performed immediately
Shearing shape: The steel plate is rolled into a tubular shape
along the outer winding
Butt cutting: using advanced submerged arc welding technology for
double-sided welding, internal welding and external welding
Visual inspection: Some basic parameters are checked by
professional technicians. Weld
Convenient welds: 100% inspection of outer welds and base material
outer welds
Detection range: X-ray inspection: 100% X-ray industrial TV
processing system for external welds, ensuring the use of image
inspection
Pressure Test: Thread
If the oil meter is detected: apply oil after the inspection port
to prevent corrosion, and ask the user to perform a hydrostatic
test, and ask the user to test. Chalking, Inspection and Welding
End Tube Defects
product description
| name | Welded spiral steel pipe |
| diameter | 500-2020mm |
| thickness | 1.2-30mm |
| length | 4-15m |
| Material | Q235A, Q235B, Q345, L245, L290, API5L X42, X52, X60, X70, X80,
OCr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, ST37.0, ST35.8,
ST37.2, ST45, ST52, ST52.4 ,STP G38,STP G42,STPT42,STS49 etc. |
| application | Mainly used in water conservancy projects, oil and gas industry,
chemical industry, agricultural irrigation, urban construction |
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