Difference of seamless steel pipe and seamless copper tube

Seamless steel pipe:

In the production pipeline, refrigeration, medical air with steam, natural gas and liquefied petroleum with the progress of structural steel pipe made of copper into a residential, commercial and industrial buildings use the material of choice.

Seamless copper tube:

From a historical point of view, first is through the process of piercing seamless copper tube production will be a solid billet into a shell. Extrusion with thin wall thickness of shell is introduced in the 20th century 50 s market, at that time, already had large extruder, the extruding machine has higher extrusion speed.

In addition, the shell is also suitable for cold drawn on the cold drawing and cold drawn than they used to work on a larger unit weight on the tank drawing roller drum of cold drawn. In the cold drawing machine design is a major progress in spinner or continuous block in the pipe is widely used, the principle of which is from the wire industry development.

High speed machine according to a certain size of the pipeline cleaning, straightening, testing, marking and cutting, then transfer the product by strapping equipment based on the size of the strict processing, or is the product rewind, its purpose is to users of the cord to carry on the annealing treatment. Irregular wall thickness in the ASTM B88 and seamless copper pipe specification into 0% in a few years ago. People now are into engineering assessment basis to study again. As air conditioning applications seamless tube is more and more is produced through Schumag program, during the need to use a carbide floating plug for a straight through. This procedure with a high degree of attention to improve the control of the wall thickness. As a medical or the application of the LP steam pipelines require high inner surface cleanliness.

This requirement is implemented through the following process: dip tube to contain the appropriate chemical cleaning machine, and then by using B819 rules of procedure to detect tubular products, these provisions are specially suitable for medical air seamless copper tube, B837, natural gas and liquefied petroleum gas fuel distribution system of seamless copper tube.

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