Q235B spiral steel pipes types
Q235B spiral tube is a commonly used raw material in spiral tubes. It is a spiral seam steel pipe welded with strip steel coil as the raw material and active double wire double-sided submerged arc welding. The main technical characteristics of the spiral steel pipe: During the forming process, the steel plate is uniformly deformed, the residual stress is small, and the surface does not scratch. Can meet the user’s more requirements in the spiral steel pipe standard.
Our company chooses advanced double-sided submerged arc welding technology, which can complete the welding in the azimuth, and it is not easy to show the shortcomings of misalignment, welding deviation and under-penetration. The quality inspection department conducts 100% quality inspection on steel pipes, so that the entire process of steel pipe production is under strong detection and monitoring, which effectively guarantees product quality.
Q235B spiral steel pipe is mainly used in water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction, etc.
For liquid transportation: water supply and drainage.
For gas transportation: coal gas, steam, liquefied petroleum gas.
For structural use: for piling pipes and bridges; for docks, roads, and building structures.
Our improvement measures in steel tube products are:
It is planned to produce new-structure steel pipes, such as double-layer spiral welded steel pipes, that is, double-layer pipes are welded with strips that are half the thickness of the pipe wall, which not only has higher strength than single-layer pipes of the same thickness, but also does not show brittle damage;
Develop new steel grades, advance the technical level of the process, and widely use the rolling and post-rolling heat treatment processes to continuously advance the toughness and welding performance of the pipe body;
The development of coated pipes, such as coating the inner wall of the pipe with an anticorrosive layer, can not only extend the service life, but also improve the lubricity of the inner wall, reduce fluid friction resistance, reduce wax accumulation and dirt, reduce the number of pipe cleaning, and reduce repair costs.