Factory-direct ERW Thin Wall Tubes: High-Quality Straight Welded Pipes

Straight welded pipe ERW thin wall tube

Welded steel pipe, also known as welded pipe, is a steel pipe welded with steel plate or strip steel after crimping. Generally, the length is 6m. Welded steel pipe has the advantages of simple production process, high production efficiency, many varieties and specifications and less equipment investment, but its general strength is lower than that of seamless steel pipe. Welded pipes with large or thick diameter are generally made of steel blank directly, while small welded pipes and thin-walled welded pipes only need to be welded directly through steel strip.

Straight seam welding is adopted for small diameter welded pipe, while spiral welding is mostly adopted for large diameter welded pipe; According to the end shape of steel pipe, it is divided into circular welded pipe and special-shaped (square, rectangular, etc.) welded pipe; According to different materials and uses, it is divided into welded steel pipe for mining fluid transportation, galvanized welded steel pipe for low-pressure fluid transportation, electric welded steel pipe for belt conveyor idler, etc. Longitudinal welded pipe has the advantages of simple production process, high production efficiency, low cost and rapid development. The strength of spiral welded pipe is generally higher than that of straight welded pipe. It can produce welded pipe with larger pipe diameter with narrow blank, and welded pipe with different pipe diameter with blank of the same width. However, compared with the straight seam pipe with the same length, the weld length increases by 30 ~ 100%, and the production speed is low. According to the specification and size table in the current national standard, it is sorted from small to large according to outer diameter * wall thickness. According to the specification and size table in the current national standard, it is sorted from small to large according to outer diameter * wall thickness.

Standerd	GB ASTM A53 ASME SA53 JIS DIN
Steel pipe grade	Q235A，Q235C、Q235B、16Mn、20#、Q345、L245、L290、X42、X46、X60、X80、0Cr13、1Cr17、00Cr19Ni11、1Cr18Ni9、0Cr18Ni11Nb等。
Lengh	Fixed length 6M
Outer Diameter	1/8 - 20inch(10.3 - 508 mm)
wall thickness	0.4-16mm
Section Shape	Round, Square, Rectangular
Processing Service	Surface galvanizing or according to the customer's demand
Packaging Details	Bare packing/wooden case /waterproof cloth
Terms of Payment	T/T L/C at sight
20 feet container contains dimension	Length under 6000mm/25T
40 feet container contains dimension	Length under 12000mm/27T
Min order	1 Ton

The products are widely used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction. It is one of the 20 key products developed in China. For liquid transportation: water supply and drainage. For gas transmission: gas, steam and liquefied petroleum gas. For structure: as pile driving pipe and bridge; Pipes for wharf, road, building structure, etc.

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Straight welded pipe ERW thin wall tube

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