1. Seamless steel pipes conforming to GB8 162 or 8 163 shall be selected as far as possible. The thinner the wall, the easier it is to bend, but if the wall thickness is too thick, it will be very difficult to bend. Seamless steel pipes are easier to bend successfully than seamless steel pipes.

Before bending the steel pipe, prepare some sand and two plugs.

3. First block one end of the pipe with a plug, then fill the steel pipe with fine sand, and then block the other end of the steel pipe with a plug. In this way, when bending, the pipe can be guaranteed not to collapse and the maximum roundness can be maintained. When plugging the pipe head, it is best to nail several pits with steel nails to ensure that the plug does not fall off when bending.

4. Before bending, burn the place where the pipe is to be bent on the gas stove for a while, so that the hardness of the pipe becomes soft and it is easier to bend. When burning, turn it to ensure that the pipe is soft around.

5. Prepare the roller according to the shape and size of the steel pipe to be bent, fix the roller on the chopping board, hold one end of the steel pipe with one hand and the other end of the steel pipe with the other hand, lean the part to be bent on the roller and bend it gently and forcefully, so that it can be easily bent into the required radian.