According to different production methods (or processes), seamless steel pipes can use steel ingots, continuous casting billets, rolling billets, forging or centrifugal casting hollows, etc.

Seamless pipes are generally non-magnetic or very weak, but the presence of magnetism will also affect our failure in use, so for many seamless steel pipe factories, it is still necessary to eliminate the magnetic properties of seamless pipes.

When the seamless steel pipe is cold drawn, due to shortcomings such as livelihood cracks in the hot-rolled tube blank, or after the high-precision cold-drawn pipe is made into a cylinder, cracks occur during the operation.

The gas dissolved in the high-temperature liquid metal during the welding of seamless steel pipes will escape in the form of bubbles during the cooling process.

Seamless steel pipes are widely used. Different types of seamless steel pipes have different applications and will encounter various problems in use.

The surface roughness of stainless steel is the watershed between ordinary stainless steel decorative panels and seamless steel pipes.