China Supplier Mild High Quality ERW Welded Steel Pipe
Since the 1930s, with the rapid development of high-quality strip continuous rolling production and the progress of welding and inspection technology, the quality of welds has been continuously improved, and the variety specifications of welded steel pipes have been increasing, and they have replaced seamless steel pipes in more and more fields
China Supplier Mild High Quality Carbon ERW Welded Steel Pipe
l Product market development trend, prospect
Since the 1930s, with the rapid development of high-quality strip continuous rolling production and the progress of welding and inspection technology, the quality of welds has been continuously improved, and the variety specifications of welded steel pipes have been increasing, and they have replaced seamless steel pipes in more and more fields
l Welding pipe process flow
Raw material unwinding - smoothing - end cutting and welding - Looping - forming - welding - internal and external bead removal - pre-calibration - Induction heat treatment - Sizing and straightening - Eddy current testing - cutting - water pressure inspection - pickling - Final inspection (strict control) - Packaging - Shipping.
l Product common specifications：
Outer diameter O.D: 12.7mm-508mm
Thickness W.T: 1.5mm-20mm also have thinner, such as 1.2MM, 1.3MM;
Length:The general spot length is 6 meters, the customized length is 4.5m-12m, the common length of the export is 5.8 meters, 5.85 meters, 6 meters and so on. Less than 4.5 meters need double size, cut size fee $7
Black Steel Pipe/ Welded Steel Pipe/Mild Steel Pipe
l Product application
The product can be widely used in structural aspects, the production of scaffolding, low-pressure water, gas, oil transportation, as well as heating pipes.
Used in boilers, automobiles, ships, building light structure door and window steel, furniture, all kinds of agricultural machinery, scaffolding, wire threading pipe, high-rise shelves, containers and so on. Can meet customer requirements, special specifications welded pipe can be processed according to user requirements.
l Surface treatment:
Bare pipe, oiled, painted, remove inside seam, end treatment: plain end, Grooved, Beveled 30-45°, threaded NPT BSPT
Ms Steel Pipe/Hot Rolled Steel Pipe/Hot Finished Steel Pipe
l Features:
simple process, high production efficiency, low cost
The production process is simple, the production efficiency is high, the cost is low, the development is fast.
l Packing:
bundled, waterproof cloth packing
