Roughness of stainless steel pipe

Roughness of stainless steel pipe

Surface roughness is generally formed by the processing method used and other factors, such as friction between the tool and the part surface during processing, plastic deformation of the surface layer metal during chip separation, and high frequency vibration in the process system. Due to different processing methods and stainless steel pipe materials, the depth, density, shape and texture of the marks left on the processed surface are different.

Roughness refers to the relationship between the smoothness of the stainless steel seamless pipe surface and the surface geometry. The surface roughness grade is one of the important criteria to determine the quality of the surface treatment of stainless steel seamless pipes. According to national standards, the surface roughness grades of stainless steel seamless pipes are usually divided into the following categories:

(1) Larger roughness: the surface with a surface roughness greater than Ra3.2μm.
(2) Smaller roughness: surface with surface roughness less than Ra0.8μm.