The biggest difference between thick-walled pipe and thinwalled pipe is just as the name suggested. The difference is the thickness of the pipe. In general,thin-walled pipe is produced by cold drawn technology, while thickwalled pipe is by using  the hot rolling technology to produce. We can use the unit of measure used to differentiate those two types of steel pipes. When the thick divided the diameter equal to 0.05, it is a watershed thick walled steel pipe. When the thick divided the diameter is less than 0.05, then it is a thin-walled steel pipe. In terms of the use of thin-walled steel pipe is for the pipeline, while the thick-walled steel pipe is used for hollow parts blank, pressure and the important pipeline use.