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Welded steel pipe

Welded pipe is also called welded steel pipe, it is made of steel strip cut into narrow strip, and then with a mold cold processing crimped into a tube. A high frequency submerged arc welder then welds a seam of pipe. Because of the different welding process, it is divided into resistance welding pipe and automatic arc welding pipe. And because of the different welding forms, it is divided into straight seam welding pipe and spiral welding pipe.

Classification :

Pipe Series

Welded Steel Pipe

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PRODUCT DETAILS

Straight seam welding pipe production process is simple, high production efficiency, low cost and has rapid development. Welded steel pipe is often used to transport fluid and powdery solids, exchange heat energy. In addition to, it is also a kind of economic steel. Using steel tubes to manufacture building structures, such as grids, supports and mechanical supports, can reduce weight, save metal by 20-40% and increase construction speed.

Product Name	Welded steel pipe
Standard	API5L, ASTM A106 Gr.B, ASTM A53 Gr.B, ASTM A270, ASTM A249, ASTM A511,ASTM A778 ,ASTM A312,ASTM A358,ASTM A409,ASTM A213,ASTM A790,ASTM A268,ASTM A269,ASTM A554,ASTM B338,ASTM B673,ASTM B674,ASTM B677,ASTM B675, ASTM B676, ASTM B690,ASTM A928,ASME B36.19,ASMEB36.10,ASTMA179/A192/A213/A210/370WP91,WP11,WP2 GB5310-2009,GB3087-2008,GB6479-2013,GB9948-2013,GB/T8163-2008, GB8162-2008,GB/T17396-2009 EN10216-5,EN10217-7,DIN 17456,DIN 17458 JIS G3463,JIS G3119,JIS G3446,JIS G3218,JIS G3258,JIS G3448,JIS H4631 DEP 31,DEP 40,DEP 20,DEP 32,DNV-OS-F101
Grade	Q195 = S195 / A53 Grade A Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2 Q345 = S355JR / A500 Grade B Grade C
Outer Diameter	ERW / HFW	LSAW / DSAW	SSAW / HSAW	RHS	SHS
	1/8 - 20 inch	12 - 56 inch	8 - 126 inch	40 x 20 mm	15 x 15 mm
	(10.3-508 mm)	(323.8-1,420 mm)	(219.1-3,200 mm)	-1,000 x 800 mm	-1,000脳 1,000 mm
Wall Thickness	0.4 - 16 mm	6.0 - 40 mm	6.0 - 26 mm	1.0 - 30 mm	0.6 - 30 mm
Length	5.8~12.0 m or as customized
Surface Treatment	Prime quality (bared, oiled, color paint, 3LPE, or other anti-corrosive treatment)
Inspection	With Chemical Composition and Mechanical Properties Analysis;
Inspection	Dimensional and Visual Inspection, also with Nondestructive Inspection.