Metline is a specialized manufacturer and factory supplier of Spiral Welded Pipes, also known as Spiral Submerged Arc Welded Steel Pipes (SSAW Pipes), widely used in the Oil and Gas, Petrochemical, Agricultural and Construction Industries. We can supply high quality SSAW pipes with various standards, including but not limited to API 5L GR A, GR B, X42,
China Spiral Steel Pipe, Welding Pipe Suppliers Welding Pipe. The welding pipe is a steel pipe made by welding or forming a steel plate or strip. The welded steel pipe has a simple production process and high production efficiency. And it has high strength in order to make sure the stable operation with excellent performance. It can be divided into many kinds. More
The finished products have larger specifications and the welding joints have excellent ductility, plasticity and good sealing. LSAW pipes have large diameter, thick wall and can withstand high pressure and low temperature. LSAW pipes play a major role in oil and gas pipelines with features of high strength, high quality and long distance.
Difference between ERW, SSAW, LSAW - Alloy Pipe, Tubes Difference between ERW, SSAW, LSAW. Steel pipe for pipe technology, can be divided into (SML), mainly as the Oilfield internal transportation pipeline and small-diameter high-pressure natural gas pipeline, used for a small number of long-distance gas pipeline, the vast majority of long-distance pipeline with Direct seam high frequency (ERW), spiral submerged arc (SSAW), LSAW three (LSAW).
Differences between ERW Steel Pipe and HFW Steel PipeThe high frequency welding (HFW) is mainly used in ordinary or thin wall steel pipe. It includes contact welding and induction welding. Direct current welding is generally used for small caliber steel tubes. In general, HFW is one of ERW production methods, it adopts the high frequency welding process. So, ERW steel pipe includes HFW steel pipe.
welding high tensile strength thick plates with thick-nesses exceeding 40mm. The methods used in welding box columns are submerged arc welding (SAW) and non-consumption type electro slag welding (ESW), High Tensile Strength Steel Plates and Welding Consumables for Architectural Construction with Excellent Toughness in Welded Joint
How Many Types of Submerged Arc-welding Steel Pipe?Apr 01, 2021 · The LSAW steel pipe has been widely applied in the oil and gas pipelines, which especially required large diameter and thick wall pipe with high strength and long-distance. At the same time, in construction structures that need tough strength, water treatment, thermal industry, bridge building, etc., the LSAW Steel Pipe is popularly used.
Max weld size on tube sections - Structural engineering t_des * Fu / 3.09 = 4.67 16's of an inch (so, a 1/4" fillet weld won't develop the full strength, and the 5/16" fillet will develop the full strength of the section, but you'll need to limit your force transfer to the capacity of the tube, not the weld strength) where t_des = 0.93 * 1/4" = 0.2325 Fu = 62 ksi
AbstractIntroductionKey IssuesMaterial WeldabilityHardenability and Fracture ModeOver the past 20 years, there has been a substantial effort to reduce vehicle body weight by the use of high strength, and more recently ultra-high strength steels, with tensile strengths up to 1500N/mm 2. Some of these materials present challenges to resistance spot welding, still the primary joining process for sheet steels. This paper covers the main issues of resistance spot welding these materials, including weldability, hardenability and joint properties. The changes in welding procedures needed to weld the Types of Oil & Gas Pipes:Seamless, ERW, LSAW Dec 20, 2018 · The most common welding technique used for oil and gas pipes is the so-called high-frequency induction technology (ERW-HFI), consisting in the application of an induction current on the outer surface of the pipe able to generate a robust seam weld and join the two sides of the steel
Welding High Strength FastenersJul 13, 2014 · A nuts welded to the back of embed plates. We had to qualify the maximum size single-pass fillet size and the minumum size multi-pass fillet size. The test plates were 6" wide x 12" long x 1" thick A36 plate with (3) 1" nuts fillet welded on each plate. The nuts were evenly spaced 3" apart along the center of the plate.
Worlds Largest Welded Line Pipe Manufacturer Welspun Welspun Corp Limited (WCL) is one of worlds-leading welded line pipe manufacturer, and the flagship company of the Welspun Group. At Welspun we believe in acquiring talent, developing skills, engaging individuals in multiple projects, and providing them with world-class experience and exposure, while keeping our core values at the crux of these activities.