Artificial enhancement of the oxide film through passivation treatment! This is made possible by immersing the material in an acidic solution.
This document presents a comparison of test results for new passivation treatments. It compares data from SUS304 and SUS303, which underwent tests such as "hydrochloric acid immersion test" and "pitting test," along with data from the new passivation treatment of SUS303. Each test type is introduced by category. [Items Included] ■ Hydrochloric Acid Immersion Test (4% Acetic Acid 1% NaCl) ■ Elution Test (4% Acetic Acid 1% NaCl) ■ Cr/Fe ■ Pitting Test (3.5% NaCl) *For more details, please refer to the PDF document or feel free to contact us.
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Sanwa Sangyo Co., Ltd. continues to take on new challenges and engage in a diverse range of work, focusing on creating employment and generating customers in the city of Kudamatsu. Today, we have become a skilled group that is well-supported by many customers for our work in metal surface treatment, including polishing and precision cleaning, as well as equipment installation in railway vehicles. Since the 2000s, we have entered a period of rapid change. We are committed to evolving despite the ever-changing environment around us, dedicating ourselves to deepening our technology and improving and passing on our skills, striving to remain a company that is needed worldwide.