A Line Pipe is a high strength carbon steel pipe used for transporting crude oil, petroleum products, natural gas and water. It is a pipeline which carries only one type of fuel. These pipes are made as per metallurgical specifications developed by API (American Petroleum Institute). Line pipes are manufactured under regulations specified by API. The standard used worldwide in the manufacturing of line pipes is API Specification 5L.

Pipeline: it is to take out the oil, gas or water from the ground and send it to the oil and gas industry enterprises through the pipeline. The pipe includes seamless pipe and welded pipe. The pipe end has flat end, threaded end and socket end. The connection mode is end welding, collar connection, socket connection, etc.

LSAW Line Pipe

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  LSAW Carbon Welded Steel Pipe Petroleum Line Pipe

  Standard: API, ASTM, GB, BS, DIN, JIS. Standard2: API 5CT, API 5L, ASTM A53-2007, ASTM A252-1998, GB/T 9711.1-1997, GB/T 3091-2001, GB/T 9711.2-1999, GB/T8163, BS EN10219, BS EN10217, DIN EN 10217-1-2005, JIS G3444-2006. Grade Group: API J55-API P110, A53-A369, Q195-Q345, 10#-45#, ST35-ST52, STPA22-STPA26. Grade: API J55, API K55, API N80, API L80, API P110, A53(A,B), Q235, Q345, Q195, 20#, 45#, St52, STPA25. Thickness: 5-50mm. Section Shape: Round

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  Carbon Welded Standard Steel ERW Line Pipe

  Item Name: Galvanized Steel Pipe. Steel Material: Q195 → Grade B, SS330, SPHC, S185 Q215 → Grade C,CS Type B, SS330, SPHC. Q235 → Grade D, SS400, S235JR, S235JO, S235J2. Q345 → SS500, ST52. 20#, 45#, A53(A,B), A106(B,C), A269, A312, St37, St52, St42, St45, A369. Outer Diameter round pipe: 20-219mm. square pipe: 20*20--200*200mm, 25*25-250*250mm, 30*30--250*250mm, 32*32-300*300mm, etc. Wall Thickness 0.5mm-20mm. Certification ISO MA CE SGS TUV

X52 Oil Line Pipe

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  API 5L x52 Seamless Line Pipe

  Standard: API, ASTM, BS, DIN, GB, JIS, GB 5310-1995, GB 3087-1999 or also according to your requirement. Standard2: API 5CT, API 5L, API 5DP, ASTM A106-2006, ASTM A210-1996, ASTM A252-1998, ANSI A213M-2001, ASME B36.10M-2004, BS 1387, DIN 1629/4, DIN 2448, DIN 2444, GB 18248-2000, JIS G3446-2004, JIS G3429. Grade Group: 10#-45#, 16Mn, A53-A369, API J55-API P110, Q195-Q345, ST35-ST52, STB35-STB42, STBA20-STBA26, STPA22-STPA26

L245 Line Pipe

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  L245 Low Carbon Line Pipe

  Standard: API, ASTM, BS, DIN, GB, JIS, BS, GB, JIS. Standard2: API 5L, ASTM A53-2007, ASTM A252-1998, BS 1387, DIN 1626, GB/T 3091-2001, JIS G3444-2006. Grade Group: 10#-45#, A53-A369, Q195-Q345. Grade: 10#, 20#, 45#, A53(A,B), Q235, Q345, Q195, Q215. Thickness: 0.5-30mm, 0.4-25mm. Section Shape: Round, round/rectangular/square/oval.etc. Outer Diameter(Round): 20-355mm.

Seamless line pipes are manufactured from a cylindrical bar of steel and are heated to very high temperatures. When the pipe becomes red hot, it is then pierced with a probe to create necessary holes into it. This red hot cylindrical bar is run through rollers to produce proper wall thickness and diameter.

Welded line pipe are widely used for interstate natural gas pipelines. These pipelines are generally large diameter pipelines produced by forming steel plate into cylindrical shape and seam is closed by welding process. The quality of the welded seam is checked by using ultrasonic or radiological inspection method and pressure test is performed at each joints.

Line pipes once manufactured undergo quality and inspection checks for steel chemistry, dimensional characteristics, strength and toughness.