ERW (Stretch Reduction) Steel Pipe is part of the Ninth Five-year Plan and “ Torch” Plan of China . The pipe body are heated to 910℃-950℃ wholly and then stretch reduction.

Specification：	No.	O.D.× Wall Thickness (mm)	No.	O.D.× Wall Thickness (mm)
	1.	89 ×4～6	14.	325 ×6～12
	2.	114.3×4～6	15.	340 ×6～12
	3.	133 ×4～6	16.	351 ×6～12
	4.	141.3×4～6	17.	355.6×6～12
	5.	159 ×4～6	18.	377 ×6～12
	6.	165 ×4～7	19.	406.4×6～12
	7.	168.3×4～7	20.	426 ×6～12
	8.	177.8×4～7	21.	457 ×6～12
	9.	219.1×6～10	22.	508 ×6～12
	10.	245 ×6～10	23.	530 ×6～12
	11.	273 ×6～10	24.	559 ×6～12
	12.	299 ×6～12	25.	610 ×6～12
	13.	323.8×6～12	26.	630 ×6～12

Execute standard：
API 5L Specification for Line Pipe ,　API SPEC 5CT, Specification for Casing and Tube　GB/T3087 Steel Pipe of Low and Middle Pressure Boiler
GB/T8163 Steel Pipe of Fluid Transportation　GB/T8162 Steel Pipe of Steel Structure　The pipes also can be produced according to customer's requirements.
Used for：
Low and middle pressure fluid transportation pipeline, Casing Tube, Boiler Pipe,　Petroleum and natural gas industry, Chemistry industry,　Electric industry,
Drainage project,　City construction,　Low and middle pressure boiler pipeline , etc
Material：
Q235～Q345　10#～45#　A25~X70 Hot rolled coiled steel　
The pipes also can be produced according to customer's requirements.
Length：
8000～12000mm　or according to customer's requirements.