Requirements for steel pipe produced in automatic rolling machine

What kind of demands would be here if a seamless steel pipe or ERW steel pipe produced in general automatic rolling machine? Today, we can have see the magic power together.

First of all, deviation on steel pipe’s diameter. The steel pipe’s bending in any part would be ≤6mm / m, the end face of the cut slope would be ≤6 ~ 8mm, and flattened pipe end face of ≤8%.

Secondly, if you want the steel pipe’s surface has no cracks, scarring, hairline and other defects. You need to know that the height or depth of the steel pipe is not more than 0.5mm small grooves, pitting, ears and height of more than two-sided ears of 1mm.

What’s more, for the low magnification steel pipe, we should make sure that there is no allowed for the residual shrinkage ≥1 level. And so many factors we need to focus on during the whole production process.