此类钢管可以分为不锈钢无缝钢管和不锈钢焊接钢管（有缝管）两大类，按照制

Such stainless steel seamless pipe can be divided and stainless steel welded pipe (pipe joints) two categories, according to the manufacturing process may be different: hot rolling, extrusion, drawing, and cold rolling it several basic types, press section tube shape can be divided and shaped tube, circular steel is widely used, but there are some square, rectangular, semi-circular, hexagonal, equilateral triangle, octagon shaped stainless steel: <br>for steel pipe subjected to the fluid pressure hydraulic pressure test should be carried out to test its ability to withstand and quality, leakage does not occur at a predetermined pressure, wet or expansion of qualified, some steel but also for curling trials according to the standard or demand side, flaring test, press flat test: <br>seamless stainless steel tube, also known as stainless steel seamless pipe, tube or solid steel ingot is made of perforated capillary, then call is made hot-rolled, cold-rolled or cold. * Thickness of seamless steel pipe with an outer diameter of several millimeters.

Such steel pipes can be divided into stainless steel seamless steel pipe and stainless steel welded steel pipe (with seam pipe) two categories, according to the different manufacturing process can be: hot rolling, extrusion, cold pull and cold rolling these basic types, according to the shape of the section can be divided into round pipe and hetero-shaped tube, widely used in the circular steel pipe, but there are some square, rectangular, semi-circular, hexagonal, Equilateral triangles, octagons and other shaped stainless steel steel pipes:<br> For the hydraulic pressure of the steel pipe to carry out hydraulic tests to test its pressure resistance and quality, at the specified pressure do not leak, wet or expand for qualified, some steel pipes in accordance with the standard or requirements of the demand for roll-edge test, opening test, flattening test:<br>Seamless stainless steel tube, also known as stainless steel seamless tube, is made from ingots or solid tube blanks perforated into a hair tube, and then made by hot-rolled, cold-rolled or cold-dialed. The specifications of the seamless steel pipe are expressed by the outer diameter and the number of millimeters of wall thickness.

This kind of steel pipe can be divided into stainless steel seamless steel pipe and stainless steel welded steel pipe (seamed pipe). According to the different manufacturing process, it can be divided into hot rolling, extrusion, cold drawing and cold rolling. According to the section shape, it can be divided into circular pipe and special-shaped pipe. Circular steel pipe is widely used, but there are also some square, rectangular, semicircle, hexagon, equilateral triangle Octagonal and other special-shaped stainless steel pipes:<br>Hydraulic pressure test shall be carried out for steel pipes bearing fluid pressure to check their pressure resistance and quality. It is qualified if there is no leakage, wetting or expansion under the specified pressure. Some steel pipes shall be subject to crimping test, expanding test and flattening test according to the standards or the requirements of the demander:<br>Seamless stainless steel pipe, also known as stainless steel seamless pipe, is made of steel ingot or solid tube blank through perforation, and then by hot rolling, cold rolling or cold drawing. Specification of seamless steel pipe is indicated by outer diameter * wall thickness mm<br>