S.S. Passivation Chemical

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Make your Fabricated Steel World class Indian steel needs a face lift with improved & upgraded quality. We at Arya Tech Solutions (ATS) strive on research and development to innovate products for surface treatment of steel for our industries. The purpose of our efforts is to provide our clients not only the ability to compete with superior quality but also to give a cutting edge advantages over others in the market. ATS brings SteelMATT – a new chemical process indigenously developed to meet international standards. SteelMATT is developed as per ASTM standards to provide not only a superior surface finish to your steel but also add value to the quality of the surface. SteelMATT is a product of extensive research and development by Arya Tech-Solution to stop contamination & corrosion on Stainless Steel (SS) at the same time to give superior MAT texture and aesthetically superior appearance on SS. It’s the revolutionize innovation to change the surface area of SS for strong, better and long serving. INTRODUCTION: Austenitic grades stainless steel (SS) like 304, 304L, 316, 316L are generally finished to either a mill finish or a lustrous finish by buffing the SS surface in a buffing machine or a long, tedious and hazardous method of processing in several acid tanks . These kind of finishes have some inherent drawbacks like appearance of thumb impressions, pit corrosion, inter granular corrosion, heat discoloration and poor aesthetic. The materials are fabricated , welded , brazed , in order to give final shape to the product. During fabrication the materials develop several metallurgical changes which may be responsible for contamination of the final product. The source of such contamination in the final product is due to: 1. Mill scales 2. Iron particle impregnation because of hot and cold rolling 3. PIT corrosion 4. Stress corrosion 5. Inter granular corrosion in the heat affected zone (HAZ) 6. Ruptured passive layer. The process of developing an matt finish like appearance on SS is simple and involves degreasing, water rinsing, chemical treatment with SteelMATT and subsequently again water rinsing. The process is carried out at room temperature and the investment cost involved for developing a matt finish is bare minimum. It is therefore absolutely essential to ensure pickling passivation of SS plants and equipments. Otherwise contamination will come in contact with the media and ultimately result in the contamination of product. ASTM A 380 calls for cleaning and descaling of SS parts and equipments and vessels/tanks & ASTM A 967 calls for Passivation of Stainless Steel for the following purposes : (A) Removal of surface contaminants that may impair the normal corrosion resistance of stainless steels- Grade: 304, 304L, 316, 316L. (B) Removal of iron particles from SS (C) Removal of oxide scales and rust from SS (D) Removal of grease, oil, carboneous or otherwise residual chemical films, soils, particles, metal chips, dirt or other non-volatile deposits. (E) Formation of protective passive layer on the SS surface. The presence of the above contaminants on SS equipments may adversely affect the metallurgical or sanitary condition or stability of a surface, or contaminate a process fluid. Click PDF For Technical Specification