4 1/2” to 13 3/8” (114.3mm to 339.7mm) SMLS & ERW API Range 3 with STC & LTC connections

• Carbon Grades: J55, K55, J55D10,
• Alloy Grades: L80, L80D10 & P110
• Other Grades: T95, Mild Sour P110, High Performance P110 & L80
• Specialty Grades available upon request
• Semi Premium and Premium connections available upon request

API standard: J55, L80, P110, SMLS & ERW Range 2 with EUE connection

• 2 3/8” x 4.7# (60.3mm x 6.99kg/m)
• 2 7/8” x 6.5# (73.0mm x 9.67kg/m)
• 3 ½” x 9.3# (88.9mm x 13.84kg/m)
• 4 ½” x 12.6# (114mm x 18.75kg/m)
• Macaroni 1”, 1 1/4”, 1 1/2”, 2 1/16” API Grades: J55 (IJ10RND)

Line pipe is very strong carbon steel pipes which are used for the transportation of various petroleum products, natural gas, oil and water. API 5L is a specification of American Petroleum Institute which regulates and defines the standard for the dimension, physical, mechanical and chemical properties of the steel used for the manufacturing of line pipe. Numerous pipe manufacturing companies across the globe follow the API 5L guidelines for the OCTG line pipe used in the Oil and Gas industry. OCTG line pipe is available in a wide range of diameter sizes ranging from 2 inches to 48 inches.

Seamless line pipe is OCTG pipelines used for transportation of crude oil and natural gas from the rig field to the oil refineries and storage facilities. They are also useful for transportation to the different shipment and distribution points. As the name suggests, Seamless pipe is pipe without a seam or welded joint. In welded pipe, the joint where the pipe is welded is the weakest part, whereby limiting the strength of the pipe. Since Seamless pipe does not have any welded joints, they have a uniform structure and strength. They can endure and hold up against high pressure, high temperature and high mechanical stress. They are corrosive resistant in nature, making them ideal for use in the Oil, Gas and Petroleum industry. Seamless line pipe is manufactured by heating cylindrical bars of steel at very high temperatures. When the pipe reaches the required temperature and becomes red hot, they are pierced with a probe for creating the required size holes into it. After the hole is pierced, the red hot cylindrical bar is then processed on rollers for acquiring the required wall thickness and diameter.

Welded line pipe is useful for interstate transportation of oil and gas. It is used for intra-field transportation of crude oil and natural gas from the rig field to the oil refineries, distribution points and storage facilities. Welded pipelines are usually huge diameter pipelines which are manufactured by converting a steel plate into a cylindrical shape. The seam of the pipe is closed by the welding process. The quality of the welded seam is monitored under the ultrasonic or radiological inspection method. A Pressure test is performed on each of the joints of the welded line pipe to determine its strength and pressure taking capability. The pipe undergoes quality checks for the quality of steel used, the pipe dimensions, its strength and sturdiness.

LSAW Pipe (Longitudinal Submerged Arc Welding)
An LSAW pipe is manufactured by cutting, bending and welding steel plates. 

ERW Pipe (Electric Resistance Welding)
ERW pipe is manufactured using steel coils which are first uncoiled, cut, processed, welded and tested.