Seamless Steel Pipe

Project location：Vietnam Product：ERW PIPE Standard and material：JIS G3466-2015STKR400 Specifications：100x100x3.2MM; 125x125x12MM; 150x150X12MM; 250x250x12(16)MM Usage：Equipment processing Arrival time：2023.10.31 In July, Xinyue received a welded pipe project from a regular customer in Vietnam, and the customer indicated that this project was a regular inventory reserve. After the confirmation of the technical details, Xinyue drew up a preliminary contract with the customer. Xinyue has cooperated with customers for four years, and the past good supply quality and on-time delivery industry attitude have left a deep impression on customers.The customer made a brief counter-offer and signed back the contract. The goods have been prepared in mid-August. Due to the customer’s storage pressure in August, the customer requested Xinyue to assist in the storage of the goods for a period of time. Because it is a regular customer of many cooperation, Xinyue expressed understandin...

　　From manufacturing processes we can know that SAW (LSAW, SSAW) and ERW pipes are entirely different right from formation, welding etc. and hence, the performance of both the pipes differ in the following aspects: 　　1. The surface quality of ERW pipes are better when compared to SAW (LSAW, SSAW) pipes, as they are smooth and have a better finish. In most of the SAW pipes, it is mainly about the weld reinforcement internally and externally. 　　2. The defects found in ERW pipes are lesser than SAW pipes. As there is a solvent deposit in SAW pipes, it results in more defects apart from the defects in the volume. The defects found in ERW pipes are only confined to wire-line and straight welds and it can be inspected easily. The defects can be noticed easily and the ultrasonic reflection on the surface makes it easier to detect. 　　3. The residual stress ratio in ERW is lower than SAW pipes. As ERW pipe deformation happens more in ERW followed by a sizing of flat oval, it results in e...

    Electric-resistance welded pipe(short for erw pipe ) can only occur in a specific environment, it also has the following characteristics:     (1) Stress corrosion cracking can only occur when stress (especially tensile stress) is present. This stress can be an applied stress, or the residual stress introduced during the welding and joining process, or the expansion stress caused by the wedging action of the corrosion product.     (2) Stress corrosion fracture is a time-dependent hysteresis damage, which is completely similar to hydrogen lag cracking.     (3) Stress corrosion cracking is a low stress brittle fracture.     Stress corrosion cracking is a common cause of failure of the chemical and chemical equipment, especially the erw pipe for oil pipelines. Due to the unpredictability of stress corrosion cracking, it is the biggest hidden danger in the petrochemical industry. The necessary conditions for stress corrosion crac...