The end shape of stainless steel pipes

Stainless steel pipes can be divided into plain pipes and threaded pipes (with threaded steel pipes) based on their end conditions. Car thread pipes can be divided into ordinary car thread pipes (low-pressure pipes for conveying water, gas, etc., connected by ordinary cylindrical or conical pipe threads) and special threaded pipes (pipes for petroleum and geological drilling, and important car thread pipes connected by special threads). For some special pipes, in order to compensate for the influence of threads on the strength of the pipe end, the pipe end is usually thickened (internally thickened, externally thickened, or internally and externally thickened) before the car thread.