API 5L SSAW 3PE Spiral Welded Steel Pipes Anti Corrosion For Oil And Gas

API 5L SSAW 3PE Spiral Welded Steel Pipes Anti Corrosion For Oil And Gas

Spiral welded steel pipe refers to the steel strip or steel plate bending deformation into circular, square and other shapes and then welded into the surface of the joint steel pipe. According to different welding methods, it can be divided into arc welding pipe, high frequency or low frequency resistance welding pipe, gas welding pipe, furnace welding pipe, bandi pipe, etc. According to the shape of the weld can be divided into straight seam welding pipe and spiral welding pipe. Welded steel tubes are used in oil drilling and machinery manufacturing. Furnace welded pipe can be used as water gas pipe, straight welded pipe for high pressure oil and gas transmission; Spiral welded pipe is used for oil and gas transportation, pipe pile, bridge pier and so on. Compared with seamless steel tube, welded steel tube has lower cost and higher production efficiency.

Straight seam welded pipe production process is simple, high production efficiency, low cost, rapid development. The strength of the spiral welded pipe is generally higher than that of the straight seam welded pipe, and the welded pipe with larger diameter can be produced with a narrower blank, and the welded pipe with different diameter can also be produced with a blank of the same width. But compared with the straight seam pipe of the same length, the weld length increases by 30~100%, and the production speed is lower. Therefore, small diameter welded pipe mostly use straight seam welding, large diameter welded pipe mostly use spiral welding.

Common material
Q235A, Q23b, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, Q345, L245, L290, X42, X46, X70, X80

.product description

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SHANDONG TONGMAO SPECIAL STEEL CO., LTD is reputed at supplying stainless steel pipe, carbon steel seamless pipe ,alloy steel pipe, hot-rolled steel pipe, cold rolled steel pipe, galvanized steel pipe, welded steel pipe, precision steel pipe , also supply steel plate , steel coil and lead sheet etc.
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