(1) When the cooling is completed, that is, when the temperatures of the surface layer and the core part are all the same, the elastic deformation of the surface layer and the core part also disappears and returns to the original state. Although transient thermal stress is generated during the cooli

Product: Seamless steel pipeApplication: Fluid transport industryStandard: API 5LProduct arrived location: IraqQuantity: 60 TonThe order is from a new client, who needs to applicate for a fluid transport industry project. This project is long-distance fluid transport. We customize the new technology

The difference between 3pe anti-corrosion steel pipe and 2pe anti-corrosion steel pipe is: there is no epoxy powder at the junction of 2pe anti-corrosion and steel pipe, there is epoxy powder at the junction of 3pe anti-corrosion and steel pipe, the thickness of 3pe anti-corrosion and 2pe anti-corro

Production Process(1) The raw materials are strip coil, welding wire, and flux. They must undergo strict physical and chemical inspections before being put into operation.(2) The head and tail of the strip steel are butted by single-wire or double-wire submerged arc welding, and automatic submerged