Common surface defects of welded steel pipe: (1) layered steel Layered wall steel tube means the cross section is divided into two floors, exposed steel surface showing the hierarchical vertical cracks. Some exhibits inside and outside surfaces of steel recessed or raised locally, layered rendering suddenly raised, dents or warping in and out of the weld. (2) sticky scar…
Read MoreWelded steel pipe and seamless steel pipe are two of the most commonly used types of steel pipes in the industry. Both are made from steel, but there are significant differences between the two that affect their performance, reliability, and overall quality. In this article, we will take a closer look at the differences between welded steel pipes and…
Read MoreProject location：New Zealand Product：ERW pipe, T-welded pipe, SSAW pipe Standard and material：AS1163 GR.350 Specifications：406,457,508,762,1067 Usage：Piling Inquiry time：2021.07.21 Order time：2022.09.23 Shipping time：2022.12.15 Arrival time：2023.01.29 Today, we are talking about the order from New Zealand, which is a piling project. Since July 2021, Xinyue’s business specialists have continued to follow up this order, regularly share the domestic steel price situation and…
Read MoreSpiral pipe is made by rolling low-carbon carbon structural steel or low alloy structural steel strip into a tube blank according to a certain helical angle (called forming angle), and then welding the pipe seam. It can be made with a narrower strip Steel produces large diameter steel pipes. Its specifications are expressed by outer diameter * wall thickness….
Read MoreFrom the analysis data of ERW steel pipe scrapping, it can be seen that the roll adjustment process plays a very important role in the production of welded pipes. That is, in the production process, if the rolls are damaged or worn seriously, some rolls should be replaced in time in the unit, or a certain type of ERW…
Read MoreSpiral welded pipes (SSAW) for water conservancy projects are generally spiral welded steel pipes with relatively large diameters, because the water passing through per unit time is large, which can greatly improve work efficiency. Since the inner wall of the spiral steel pipe is constantly washed by water, the inner wall is generally not treated with anti-corrosion treatment, but…
Read MoreSSAW steel pipe is a welded steel pipe made of strip steel coil as raw material, often warmly extruded, and welded by automatic double-wire double-sided submerged arc welding process. The process properties of SSAW steel pipe include bending, surface quality, size, shape, weight and allowable deviation. 1. Bending performance of SSAW steel pipe: After bending 180 degrees with the…
Read MoreSAW pipe (Submerged Arc Welding Steel Pipe), it can be classified into longitudinal submerged arc welding steel pipe (LSAW steel pipe) and spiral submerged arc welding steel pipe (SSAW steel pipe). SAW is a manufacturing process using submerged arc welding of steel,this process produces high current density, which prevents the flux layer from losing heat quickly and concentrates in…
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.
