Chemical polishing is a commonly used surface treatment process for stainless steel. Compared with electrochemical polishing, its biggest advantage is that it does not require DC power supply and special fixtures, and can polish parts with complex shapes with high productivity. In terms of functionality, chemical polishing can not only obtain a surface with physical and chemical cleanliness, but also remove the mechanical damage layer and stress layer on the surface of stainless steel to obtain a mechanically clean surface, which is beneficial to preventing local corrosion of parts and improving Mechanical strength and extended service life of parts. Since the patent on chemical polishing of stainless steel was obtained in the early 1940s, many formulas have been made public, but people still find it difficult to apply them in practice. Because there are many varieties of stainless steel and different grades of stainless steel have different corrosion laws, it is impossible to use the same solution, so there are many types of stainless steel chemical polishing solutions.
The basic components of chemical polishing solutions include corrosives, oxidants and water. Corrosives are the main ingredients. If the stainless steel is dissolved in the solution, polishing cannot be performed. Oxidants and additives inhibit the process and move the reaction in a direction that favors polishing. Water regulates the concentration of the solution and facilitates the diffusion of reaction products. Whether stainless steel chemical polishing can proceed smoothly depends on the reasonable combination of the above ingredients.
| Standard | ASTM,AISI,JIS,SUS,GB,DIN,EN,etc. ASTM A312,ASTM A358,ASTM A790,ASTM A270,ASTM A554,JIS G3459,JIS G3468,JIS G3446,JIS G3448,EN10217,EN10312 |
| Length | 2000-12000mm, according to customer's requirements |
| Width | 300-2000mm, according to customer's requirements |
| Processing Service | Bending, welding, uncoiling, punching, cutting, forming, wire drawing, printing, etc. |
| Material Grade | 304,304L,309S,310S,316,316Ti,317,317L,321,347,347H,304N,316L, 316N,201,202 |
| Surface | BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D |
| Technique | Hot rolled/cold rolled |
| Advantage | guaranteed price, guaranteed service, guaranteed quality, guaranteed after-sales, guaranteed time. |
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