It is very normal for the surface of ASTM A106 grade B seamless steel pipe to appear oxidation. Many factors can cause the surface oxidation of ASTM A106 grade B seamless steel pipe. When the surface of ASTM A106 grade B seamless steel pipe is oxidized, it is necessary to take some measures to clean the surface oxidized iron sheet. There are three common cleaning methods.
The oxide film on the surface of ASTM A106 grade B seamless steel pipe is thin and dense, and it is not easy to fall off. Normally, the oxide scale of 0.2 ~ 0.3mm will be produced in the heating furnace of ASTM A106 grade B seamless steel pipe. The slab defects within this range can be removed with the scale. If the defects are not within this range, the surface defects on the billets will inevitably be brought into the super finished products if they are not treated. The surface defects of ASTM A106 grade B seamless steel pipe can not be cleaned by flame. The composition and crystal phase composition of the billet cleaning area will change due to flame cleaning, which will affect the corrosion resistance of stainless steel products.
Therefore, mechanical cleaning is a common and effective means of stainless steel surface treatment. For ASTM A106 grade B seamless steel pipe, the general methods include scale cleaning machine treatment, water explosion, shot blasting machine cleaning.
