A detailed explanation of the welding process of large diameter straight seam steel pipe:Double-wire automatic welding of straight seam steel pipe is a welding technology developed in recent years. In addition to the characteristics of semi-automatic single-wire welding, it also has welding characte

1. Metallurgical properties of materialsThe raw material for the production of spiral welded pipes is hot-rolled coils, and the straight seam welded pipes are made of steel plates. The weight of the alloy contained in the coil is less than that of the steel plate. It is for this reason that the spir

1. Rolling method: Stainless steel pipe bending generally does not require a mandrel, and is suitable for the inner round edge of thick-walled stainless steel pipes.2. Roller method: place a mandrel in the stainless steel tube, and push the outside with a roller at the same time.3. Stamping method:

1. Generally, large-diameter thin-walled steel pipes are used for the transportation of general lower-pressure fluids such as water, gas, air, oil, and heating steam.2. Ordinary carbon steel wire casing (GB3640-88) is a steel pipe used to protect wires in electrical installation projects such as ind

Oil casing serves as the structural retainer for the walls of the oil and gas wells, or well bore. It is inserted into a well bore and cemented in place to protect both subsurface formations and the wellbore from collapsing, to allow drilling fluid to circulate, and extraction to take place. The oil

There are two main differences between oil casing and oil drill pipe: 1. Different uses; 2. Different materials.Oil casing is a steel pipe used to support the walls of oil and gas wells to ensure the normal operation of the entire oil well after the drilling process and completion. Each well uses se

Precision stainless steel tubes are very characteristic in model specifications and appearance performance. First of all, the thicker the tube wall of this type of stainless steel tube, the higher its cost performance and practicability, and the thinner the tube wall, the processing cost will be gre

After a series of treatments such as forming, welding, and cooling, the spiral steel pipe still needs to be sawed. In this link, the length of the technical spare ruler directly affects the quality and sales of the finished welded pipe, so the length of the spare ruler should be controlled between (

Nowadays 3PE coated steel pipe is the most popular steel pipe in the market. Three-layer polyethylene(3PE） is one of the main external anticorrosion technology systems for buried pipelines. It's environment-friendly, anti-corrosion performance high, operates quickly, and saves more time during the p

3pe anti-corrosion steel pipe means three-layer anti-corrosion PE steel pipe. 3pe anti-corrosion steel pipeline is widely used nowadays, and it is a kind of steel pipeline with better anti-corrosion performance. What anti-corrosion materials are the structure of the 3pe anti-corrosion steel pipe? Wh