The effect of pipe material quality

Tube billet quality on the quality of the structure with seamless steel tube:

The merits of the billet quality is the action of the primary factors on the quality of the seamless tube. In order to guarantee reasonable perforation process and obtain high quality seamless tube, the necessary geometry size of tube billet, macrostructure and surface state put forward strict requirements.

Pipe diameter is too big or elliptic spend big, can make the perforation when nip condition is bad, will also precipitated by tube billet diameter and large amount of compression of the occurrence of folds.

Internal organization matter refers to the shrinkage cavity and central loose, the accumulation of non-metallic inclusions, gas content, etc. Stringency of such requests, with the purpose of the seamless tube and steel grade differences.

Is the most primary tube billet surface quality, because in the pipe to any disability city to products on seamless tube, and the location of the disabled will lead to stress concentration, by plastic deformation will lead to disability deepen, extended.

In word to come up with output of high quality seamless pipe products, the good tube billet quality is the first step.