From 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 MoreProject location：Australia Product: Welded steel pipe Standard and material：AS1163C350L0/EN10219S355JOH Specifications：273mm-711mm Application：steel fabrication Inquiry time：2022-5-12 Order time：2022-6-30 Shipping time：2022-10-28 Estimated arrival time：2022-12-15 This customer is from Australian, it is trading customer with a long cooperation-ship for 5 years. It is required welded pipe again for this time covering specification of diameter of 273mm-711mm. The customer introduced that the purpose of…
Read MoreThe welding process of high-frequency welded steel pipe (erw) is carried out under the condition of fast heating rate and high cooling rate. The temperature change causes a certain welding stress, and the structure of the weld also changes. The structure in the welding center area along the weld is Low-carbon martensite and small area of free ferrite; the…
Read MoreWhat is wrought steel Wrought steel material refers to product forms (forged, rolled, ring rolled, extruded…), while forging is a subset of wrought product form. Difference between wrought steel and forged steel 1.The main difference between wrought and forged steel is strength.Forged steels are tougher than wrought steels as they begin as a casting which is then forged which…
Read More1. Spiral submerged arc welded steel pipe (SSAW) and longitudinal submerged arc welded steel pipe (LSAW) In the 1950s and 1960s, spiral steel pipes were widely used in oil and gas pipelines. In the 1970s and 1980s, they were severely challenged by longitudinal submerged arc welded steel pipes (LSAW steel pipe) and ERW steel pipes. So far, spiral steel…
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.
