Production Process Of E355 Seamless Honed Tube

 E355 seamless honed tube is a kind of high-precision steel pipe material processed by cold drawing or hot rolling. Due to the advantages of no oxide layer on the inner and outer walls of the precision steel tube, no leakage under high pressure, high precision, high finish, no deformation in cold bending, no flaring, no cracks in flattening, etc.

E355 honed tubes mainly used for pneumatic or hydraulic components, such as cylinder barrels, can be seamless pipe. The chemical composition of the quilted grinding tube is carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and chromium Cr.

PROCESSING TECHNOLOGY OF E355 SEAMLESS HONED TUBES

E355 honed tube is processed by rolling, because the surface layer has residual compressive stress on the surface, which helps to close the tiny cracks on the surface and hinders the expansion of erosion. Therefore, the corrosion resistance of the surface can be improved, and the generation or expansion of fatigue cracks can be delayed, thereby improving the fatigue strength of the quilted mill. Through rolling forming, a layer of cold work hardening layer is formed on the rolling surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, thereby improving the wear resistance of the inner wall of the quilting tube and avoiding burns caused by grinding. . After rolling, the reduction of surface roughness value can improve the fit properties.

ADVANTAGES OF DATONG’S HONED TUBE

1, High precision tolerances;
Our honed steel tube can meet ID tolerance H7, H8, H9, … etc according to the customer’ requirements, and its I.D dimension.

2, Seamless tube with high pressure resistance;
We only use seamless cold drawn tubes to produce honed pipes, which means our honed tubing can work under higher pressure, thus our honed pipes are more reliable for hydraulic cylinder applications.

3, High Smooth inside surface;
The roughness of our honed pipe is Max Ra 0.4 microns ID finish .

4, Good weldability: The weldability of our honed steel tubing is very good, this is quite helpful for manufacturing the cylinders

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