Straight seam steel pipe is a welding process of steel pipe opposite to spiral steel pipe. The welding process of this kind of steel pipe is relatively simple, and 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 advantages does it have?
This kind of steel pipe is welded by a welding method parallel to the longitudinal direction of the steel pipe, and it is also widely used. With the same diameter and length, the welding length of the straight seam steel pipe is much less, while the welding length of the spiral steel pipe may increase by more than 30%. Due to the process of welding, the efficiency is relatively low, and the output is also quite low. However, for the same blank, generally, spiral welded pipes can obtain products of 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 welding process is relatively low, the production process of forged steel, extrusion, rolling, and drawing steel can be manufactured, and the specifications are also determined, it provides a wide range of applications. possibility.
In my country, there is a demand for straight seam steel pipes in the petrochemical industry, water supply engineering industry, urban construction, power engineering, etc.
In 1947, the first modern steel pipe structure offshore platform was built in Mexico, which opened the prelude to the application of steel pipe structures. In the Bushline Palace in London, England, the exposed circular pipe section trusses transmit the facade load to the columns, and the pipe section heat injection Water is used for fire prevention, which just makes up for the weakness of poor fire resistance of steel structure buildings. There are many examples of straight seam steel pipes in nature. The structural performance of the circular pipe shape under compression, torsion, and multi-directional bending has inspired people to adopt the traditional design concept of steel structures. Circular tube structures and steel tube structures for architectural appearance, large space, long-span buildings, gymnasiums, subway stations, and large industrial plants are not only limited, but it is difficult to make the traditional reinforced concrete structure, wood structure, and brick structure appear.
After more than ten years of development, the completion of the Olympic venues represented by the Bird’s Nest has established a landmark building for the 2008 Olympic Games. The project is made of low-alloy high-strength steel Q460. It is at 345, and if it is higher than that, it is not recommended to use it. The other one is the hall of the Grand Theater. The columns are made of fire-resistant submerged arc welded steel pipes, which can withstand temperatures above 600 degrees Celsius without deformation or softening and can be free from corrosion for a long time without any corrosion measures outdoors. In addition, my country has successively built some large-scale steel pipe structure buildings. As a new structural form, the 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 state of weak stability or even falling endlessly, and the downturn is hard to change. It is understood that although it is now in the traditional peak season of consumption in the steel market, it is difficult to significantly release downstream and terminal demand, and the consumption capacity for straight seam electric welded steel pipes is weak, resulting in the lack of favorable supporting factors for prices. With the recent arrival of new resources to the market, the phenomenon of uneven specifications in some areas has eased slightly. Merchants with relatively sufficient supplies still focus on shipments, while merchants with low inventories mostly choose to wait and see for the time being. Fortunately, the liquidity tension in the straight seam electric welded steel pipe market is not high at present, and the price trend cannot be greatly suppressed. For the straight seam electric welded steel pipe market, how the price develops will eventually return to the level of actual demand. And considering that the recent market transactions are still tepid, I am afraid that the price still has a downside risk, but the range will not be very large.
Post time: Feb-28-2023