Astm A213 Grb Schedule 20 Smooth Black Carbon Steel Tube

We are engaged in manufacturing, exporting and supplying an excellent quality ASTM A213 GRB Schedule 20 Smooth Black Carbon Steel Tube to our valuable clients in Changzhou, Jiangsu, China. This series products are made with high quality raw material. Advanced manufacture equipments and the exquisite craft, technology, characteristic of high precise size, good quality surface, stable performance, especially for the reliable durable performance under high temperature. It is widely applied in eat Exchanger and Condenser Tubes, Gas Spring and Lifter tubes, Shock Absorber Tubes and Pipes, Automobile Motocycle tubes and pipes, Hydraulic Pipe.High pressure and super critical pressure steam boiler, the pipe line so on.
Din high precision cold-drawn/cold rolled seamless steel tube(polished)
Synopsis of process routing:quality carbon steel-coled drawn-heat treatment without oxidization (NBK status)-nondestructive testing.In the wall honing and inside flushing under the high pressure. Antirust oiling outside surface-plastic capping on both ends.
Main features:high precision,excellent brightness,no oxidization on the outer and inner walls after heat treatment,high cleanness of inside wall.The steel tube is able to withstand high pressure.No deformation after cold bending,no crack after flaring and flattening.The complicated geometrical forming and machining can be realized.Color of tube:gray with white.