Because of the large diameter and thin wall thickness of large-diameter thin-walled
LSAW steel pipes, special attention must be paid during transportation. When transporting large-diameter thin-walled straight seam steel pipes, short pipes should be used as support frames in the steel pipes in the form of crosses to prevent deformation. Large-caliber thin-walled straight seam steel pipes generally can only be installed in a carriage 1 to 2 pipes, and wooden bricks should be used at the bottom to pad both sides to avoid rolling and deformation.
In addition to preventing rainwater from being exposed to large-diameter thin-walled LSAW steel pipes during transportation, the driver must pay attention to the weather at all times and also pay attention not to touch corrosive chemicals.
The characteristics of the use of large-diameter straight seam steel pipes in steel structure engineering:
Steel structure straight seam steel pipes can be divided into high-frequency straight seam steel pipes (
ERW pipe) and submerged arc welded straight seam steel pipes according to the production process. Submerged arc welded straight seam steel pipes are divided into UOE, RBE, JCOE steel pipes, etc. according to their different forming methods. Thick-walled straight seam steel pipe, the steel pipe with the ratio of the outer diameter of the steel pipe to the wall thickness of less than 20 is called the thick-walled straight seam steel pipe. Mainly used as petroleum geological drilling pipes, cracking pipes for petrochemical industry, boiler pipes, bearing pipes and high-precision structural pipes for automobiles, tractors, etc.
The difference between thick-walled straight seam steel pipe and thin-walled straight seam steel pipe is the thickness of the steel pipe wall. It is generally believed that wall thickness/pipe diameter equal to 0.02 is the watershed between thick-walled straight seam steel pipe and thin-walled straight seam steel pipe, and the wall thickness/pipe diameter is less than 0.02 The thin-walled steel pipe is larger than the thick-walled straight seam steel pipe. In terms of application, thin-walled steel pipe is mostly used for pipelines.
