Acquired rust refers to the phenomenon where metal in contact with stainless steel rusts, causing the stainless steel itself to rust as well.
"The Causes of Stainless Steel Rusting" Stainless steel has the characteristic of being resistant to rust, but it is not completely rust-proof! There are four main causes of rusting in stainless steel. 1. Contaminated Rust This phenomenon occurs when stainless steel comes into contact with other types of metals, causing the passive film to break down and resulting in rust on the stainless steel. Stainless steel that has been scratched by other metals may gradually rust from the damaged areas. 2. Salt and Acidity The passive film that protects stainless steel from rust is vulnerable to salt and acids. In regions such as coastal areas, where it may come into contact with acidic chemicals, stainless steel can rust. 3. Dirt and Moisture Areas that are contaminated with dirt or water can have their passive film destroyed, leading to rust. 4. Welding and Bending Processes Welded or bent areas may retain residual stress from the processing. If this residual stress remains, it can lead to deterioration of the crystal structure, resulting in rust formation.
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"Methods to Prevent Rust on Stainless Steel" Stainless steel is resistant to rust, but there are surprisingly many causes for rust to occur, and under certain conditions and environments, it can rust easily. One way to protect stainless steel from rust is by painting it. Painting not only protects against salt, acidity, dirt, and moisture, but also helps prevent rust and scratches by covering the surface of the stainless steel with paint. Additionally, an effective method for surface preparation for stainless steel painting is blast treatment, which involves using abrasive materials to grind the surface at high speed. The "shot peening effect" of blast treatment can remove residual stress. At Harada Iron Works, we have handled a large number of stainless steel products used in coastal and marine plant facilities, underwater structures, and ships. Such equipment, which cannot be easily maintained and requires safety, demands corrosion resistance and weather resistance to protect against rust for long periods. We have large blast equipment dedicated to surface preparation and an indoor painting factory, allowing us to perform comprehensive work even on large products. If you are having trouble with rust or painting on stainless steel, please feel free to consult us. For more details, please see the related links below.
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Turning your troubles into good experiences for our customers. We respond to such customer requests. From "nothing" to "something." Creating "one-of-a-kind" rather than "mass production." It is Harada Iron Works that fulfills those desires. We provide a consistent production service from material procurement to painting and installation, helping to shorten delivery times and reduce total costs to meet various customer needs. With over 70 years of experience, we are committed to providing even greater "high added value" to our products through the skills and know-how we have honed over the years. If you have any inquiries regarding production or painting, please feel free to contact us. We look forward to hearing from you. For blasting and painting, leave it to us. Harada Iron Works Co., Ltd. Hiroshima TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Please feel free to contact us for consultations or estimates.
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Our company manufactures products tailored to the diverse needs of various sites. We respond to customer requests with our capabilities, advantageous location, and thorough quality and delivery management. You can trust us with everything from material ordering to can manufacturing, processing, surface preparation, and painting. Additionally, we have dedicated many years to research and development in rust prevention, establishing a solid technology and facilities as a "rust prevention department," and we also perform tasks such as paint stripping. Please feel free to contact us with any requests.
![[Construction Example 1] Painting on SUS304](https://image.mono.ipros.com/public/product/image/1ab/2001500482/IPROS68911682789291266304.jpeg?w=280&h=280)
![[Exhibition Participation] Introduction of Products for Coating Equipment (Energy Saving, Decarbonization, Low Carbon)](https://image.mono.ipros.com/public/product/image/2072948/IPROS17510754877218469405.jpg?w=280&h=280)