x80 grade steel pipe welding requires preheating up to 350°F

API 5l x80 pipe is a high yield seamless pipe that is modified to suit offshore structural purposes. It is intended for use in fixed offshore structures and is designed to operate in the offshore sector. API 5L x 80 pipe, in which Grade X 80 indicates 80000 PSI minimum yield strength and 95000 PSI minimum ultimate tensile strength. This pipe can be weld appropriately with self-shielded flux-cored wire. These pipes are applicable in high pressure pipeline onshore & offshore applications, Gas pipeline transmission Sour gas resistance pipeline applications and subsea services.

API 5L-X80 pipeline joints welded with self-shielded flux-cored wire. This process was evaluated under preheating conditions, with a uniform and steady heat input. This x80 grade steel pipe welding requires preheating up to 350°F. All joints were welded in a flat position (IG), with the pipe turning and the torch still. Tube dimensions were 762 mm in external diameter and 16 mm in thickness. Welds were applied on single V-groove, with six weld beads, along with three levels of preheating temperatures, these temperatures were maintained as the inter-pass temperature. Several mechanical tests are conducted on this to get the tensile, hardness strength which represents the weld characterization.

Though there is increased worldwide demand for energy, the construction of high-pressure gas-transmission lines with maximized transport efficiency become a vital need for the industries that limits the cost of pipeline construction and gas transportation. Reliable pipes & tubes is reputed X80 pipe manufacturers in India who manufactures this x 80 pipes of larger diameters increasing the pipelines’ operating pressures. They offer the higher strength steel grade pipes which are mainly used in industries like Oil & Gas, Oil sands, Power generation, Nuclear power generation, Refining, Petrochemical, Chemical, and Subsea. API 5L x 80 pipe is high yield and strength steel line pipe along with maintaining safety criteria is known for its many other features like Ultra high strength material, excellent low-temperature toughness, High collapse, resistance for cold-region and deepwater offshore service, Good corrosion resistance which increased operating pressure, reduce in size and weight, cost saving for pipeline user.

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