Straight seam steel pipe is a steel pipe welding process that is opposite to spiral steel pipe. The welding process of this kind of steel pipe is relatively simple, the cost of welding is relatively low, and it can achieve high efficiency during production, so it is relatively common in the market. And it is a widely used product, so what are its advantages?
This kind of steel pipe is welded using a welding method parallel to the longitudinal direction of the steel pipe, and it is also widely used. For the same diameter and length, the welding length of straight seam steel pipes is much less, while the welding length of spiral steel pipes may increase by more than 30%. Due to process reasons during welding, the efficiency is relatively low and the output is also quite low. But for the same blank, spiral welded pipes can generally be produced in various diameters. In contrast, straight seam steel pipes cannot achieve this welding effect.
The reason why straight seam steel pipes are widely used in the market is because of their characteristics. Since the cost of the process used during welding is relatively low, and the manufacturing processes of forged steel, extrusion, rolling, and drawing steel can all be manufactured, and the specifications are also certain, it provides a wide range of applications. possibility.
In our country, the petrochemical industry, water supply engineering industry, urban construction, power engineering, etc. all have demand for straight seam steel pipes.
In 1947, the first modern steel tube structure offshore platform was built in Mexico, which kicked off the application of steel tube structures. The exposed circular tube section trusses transferred the facade load to the columns, and the tube section heat was injected into the Bush Lane Palace in London, England. Water is used for fire protection, which just makes up for the poor fire resistance of steel structure buildings. There are many examples of straight-seam steel pipes in nature. People are inspired by the traditional design concepts of steel structures after thinking about the structural performance of circular tube shapes under compression, torsion, and multi-directional bending. Circular tube structures and exterior steel tube structures not only have limited space and large span buildings, stadiums, subway stations, and large industrial plants, but it is difficult to use traditional reinforced concrete structures, wood structures, and brick structures.
After more than ten years of development, the completion of Olympic venues represented by the Bird’s Nest has established a landmark building for the 2008 Olympic Games. This project uses low-alloy high-strength steel Q460. It is at 345. If it is higher than 345, it is not recommended to use it. The other is the grand theater hall. The columns are made of fire-resistant submerged arc welded steel pipes. They can be used at temperatures above 600 degrees Celsius without deformation or softening. They can be protected from corrosion for a long time without taking any corrosion measures outdoors. In addition, our country has built some large-scale steel tube structure buildings. As a new structural form, steel pipe structure has made great achievements after more than ten years of development.
The straight seam electric welded steel pipe market has been in a weak stable or even falling state, and the downturn is difficult to change. It is understood that although it is now the traditional peak season for consumption in the steel market, downstream and terminal demand is difficult to significantly release, and the consumption capacity of straight seam electric welded steel pipes is weak, resulting in a lack of favorable supporting factors for prices. With the recent arrival of new resources on the market, the phenomenon of uneven specifications in some areas has slightly eased. Merchants with relatively sufficient supplies are still focusing on shipments, while most merchants with low inventories choose to wait and see for the time being. Fortunately, the current tightness of liquidity in the straight seam electric welded steel pipe market is not high, and it is not yet able to form a large suppression on the price trend. For the straight seam electric welded steel pipe market, how the price develops must eventually return to the actual demand level. Considering that recent market transactions are still tepid, I am afraid that there is still a downside risk to prices, but the magnitude will not be large.
Post time: Apr-24-2024