Boiler steel tubes refer to steel products that are open at both ends and have a hollow section. The ratio of its length to the surrounding area is large. According to the production method, it can be divided into seamless steel tubes and welded steel tubes. Wall thickness indicates a wide range of

The process is as follows: After the straight pipe is cut, the induction coil is put on the part of the steel pipe to be bent by the bending machine, the pipe head is clamped by the mechanical arm, and the intermediate frequency current is passed through the induction coil to heat the steel pipe. Wh

Steel pipe processing furnace:1. In the process of heat treatment, the workpiece that is easy to deform should be stopped on the special fixture2. The workpiece should be placed in the effective heating zoneWarm-up:1. For workpieces with complex shapes or sharp changes in cross-section and large eff

According to the first edition of American Petroleum Institute standard APISPEC5CT1988, API casing steel grades are H-40, J-55, K-55, N-80, C-75, L-80, C-90, C-95, P- 110, Q-125, a total of 10 types. API casing shall be supplied with threads and couplings, or with any of the following pipe ends: pla