(1) The difference between hot working and cold working: hot rolling is hot working, and cold drawing is cold working. The main difference: is that hot rolling is rolling above the recrystallization temperature, cold rolling is rolling below the recrystallization temperature, and cold rolling is som

Due to the characteristics of the two-phase structure, DSS has the advantages of both ferritic stainless steel and austenitic stainless steel through correct control of chemical composition and heat treatment process. Compared with austenitic stainless steel pipe, the advantages of duplex stainless

The wide range of applications of plastic-coated steel pipes has brought them a lot of room for development. As the demand for plastic-coated steel pipes increases, manufacturers have sprung up. The advent of a new era of plastic-coated steel pipes. As people's awareness of environmental protection

The high-frequency induction coil of the straight seam steel pipe should be as close as possible to the position of the extrusion roller. The internal stress of the steel pipe is small and evenly distributed, which can effectively prevent stress corrosion cracking, high dimensional accuracy, and fac