Advantages and disadvantages of SSAW steel pipe

SSAW steel pipe: It is rolled by low-carbon structural steel or low-alloy structural steel strip at helix angle to form a tube blank, and then welding the tube seam. The specifications are expressed by outer diameter * wall thickness, and the welded pipe shall be ensured that the hydraulic test, the tensile strength of the weld and the cold bending performance must meet the requirements.

Advantages of SSAW steel pipe:

1. The same width of strip steel can produce different diameter steel pipes

2. Under the same pressure conditions, the stress of the sprial welded seam is smaller than that of the straight seam, which is 75% to 90% that of the straight seam welded pipe, so it can withstand greater pressure. Compared with the LSAW steel pipe of the same outer diameter, the wall thickness can be reduced by 10% to 25% under the same pressure.

3. The size is accurate, the diameter tolerance does not exceed 0.12%, the deflection is less than 1/2000, and the ovality is less than 1%. Generally, the sizing and straightening process can be omitted.

4. It can be produced continuously. In theory, it can produce infinitely long steel pipes, with small loss, and can increase the metal utilization rate by 6% to 8%.

5. Compared with the LSAW steel pipe, the operation is flexible and easy to change and adjust the variety.

6. The equipment is light and low initial investment. It can be made into a trailer-type mobile unit to produce welded pipes at the construction site where the pipeline is laid.

7. Easy to realize mechanization and automation.

Disadvantages of SSAW steel pipe: Due to the use of rolled strip steel as the raw material, there is a crescent curve, and the welding point is in the elastic strip edge area, so it is difficult to align the welding torch, which affects the welding quality. Therefore, it is necessary to set up complex weld tracking and quality inspection equipment.

Changsha Xiangjia Metal Materical Co., Ltd. the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,000 tons per annual will ensure the good quality and competitive duration of our products.