Views:3 Author:Site Editor Publish Time: 2021-12-27 Origin:Site
Straight seam welded pipe is a welding process of steel pipe opposite to spiral steel pipe. Because the welding process of this kind of steel pipe is relatively simple, and the welding cost is relatively low, 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 welded length of straight seam welded pipes is much less, while the welded length of spiral steel pipes may increase by more than 30%. During welding, due to technical reasons, the efficiency is relatively low, and the output is also quite low. But the same blank, generally spiral welded pipe can get products of various diameters. In contrast, straight seam welded pipes cannot achieve this welding effect.
The reason why straight seam welded pipes are widely used in the market is because of their characteristics. Since the cost of the process used in welding is relatively low, and the production processes of forging steel, extrusion, rolling, and drawing steel can all 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 welded pipes in the petrochemical industry, water engineering industry, urban construction, power engineering, etc. After more than ten years of development, the completion of the Olympic venues represented by the Bird's Nest established a landmark building for the 2008 Olympic Games. The project uses low-alloy high-strength steel Q460. It is at 345, and it is not recommended to use it above. The other is the Great Theater Hall. The columns are made of fire-resistant and submerged arc welded steel pipes, which can be kept at a temperature above 600 degrees Celsius without deformation or softening. Without any corrosion measures outdoors, they can be protected from corrosion for a long time. In addition, my country has successively built some large-scale steel pipe structures. As a new structural form, the steel tube structure has achieved 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 declining state, and the downturn is difficult to change. It is understood that although it is now in the traditional peak season of consumption in the steel market, downstream and terminal demand are difficult to release significantly, and the consumption capacity of longitudinal 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 irregularity of specifications in some regions has eased slightly. Merchants with relatively sufficient supply are still focusing on shipments, while merchants with low inventory mostly choose to wait and see for the time being. Fortunately, the current shortage of liquidity in the straight seam electric welded steel pipe market is not high, and it has not yet formed a major repressive effect on the price trend. For the longitudinal electric welded steel pipe market, how the price develops will eventually return to the actual demand level. And considering that the recent market transactions are still tepid, I am afraid that prices still have downside risks, but the magnitude will not be very large.