​Reliability of 304 Stainless-Steel-Tube Products

Reliability of 304 Stainless-Steel-Tube Products

The surface roughness of a stainless-steel-tube has varying impacts on component coatings, heat transfer, circuit resistance, the reflection of surface operational capabilities and radiation source characteristics, fluid and vapor flow resistance, and the distribution of current on the conductor surface, among other factors.

The roughness of a stainless-steel-tube affects the wear resistance of components. The rougher the surface, the smaller the total effective contact area between mating surfaces, leading to greater pressure and faster wear. Roughness influences the stability of mutual mating characteristics. For transition fits, a rougher surface is more prone to wear, which can cause the clearance to gradually increase throughout the component's operational life.

The roughness of a stainless-steel-tube affects the fatigue limit of components. Unsmooth component surfaces possess larger valleys, which, similar to notch effects or cracks, are sensitive to stress, thereby impacting the component's fatigue strength. Roughness affects the corrosion resistance of components. Microscopic troughs on a rough surface allow corrosive gases or liquids to easily penetrate into the inner layers of the metal material, leading to surface corrosion.

The roughness of a stainless-steel-tube affects the tightness of components. Rough surfaces cannot make close contact, allowing steam or liquid to leak through the gaps between the surfaces. Roughness influences the contact stiffness of components. Contact stiffness is the ability of a component's fusion surface to resist contact deformation under external forces. The overall stiffness of equipment largely depends on the contact stiffness between its components.

Roughness impacts the measurement accuracy of stainless-steel-tube components. The roughness of both the measured surface of the component and the measuring instrument itself directly affects the precision of the measurement, especially in precision measuring applications. Attention must also be paid during the use of sanitary stainless-steel-tubes and welded stainless-steel-tubes.