Key Characteristics of Stainless Steel

1. Weldability
Stainless steel is widely used in sculpture and various industrial applications. The welding performance required varies depending on the product's purpose. For example, first-class tableware typically doesn’t require high weldability, and some pot manufacturers even avoid it. However, many products, such as second-class tableware, thermos flasks, steel pipes, water heaters, and dispensers, demand excellent welding properties from the raw materials to ensure structural integrity and long-term durability.

2. Corrosion Resistance
Corrosion resistance is a crucial property for most stainless steel products. Items like first- and second-class tableware, kitchen tools, water heaters, and dispensers must resist rust and degradation over time. Some international buyers conduct corrosion tests by boiling a sodium chloride (NaCl) solution and then letting it sit for a while before removing, washing, and drying the product. They then measure weight loss to assess the level of corrosion. It’s important to note that during testing, if the surface is polished using abrasive materials containing iron, it may cause rust spots, which can affect the test results.

3. Polishing Performance
Polishing performance depends on several factors:
â‘  Surface defects in the raw material, such as scratches, pitting, or pickling, can hinder the polishing process.
â‘¡ Material quality plays a key role. If the hardness is too low, it becomes difficult to polish, leading to poor BQ (bright quality) performance. Additionally, low hardness may result in an orange peel effect after deep drawing, further reducing the surface finish. On the other hand, higher hardness generally improves BQ performance.
â‘¢ In deep-drawn parts, areas with significant deformation may develop small black spots or ridges, which can negatively impact the overall appearance and BQ rating.

4. Heat Resistance
Heat resistance refers to the ability of stainless steel to maintain its mechanical and physical properties at high temperatures. Carbon is a critical element in austenitic stainless steels, as it strongly stabilizes and expands the austenite phase. Its effect is about 30 times greater than that of nickel. As an interstitial element, carbon enhances the strength of austenitic stainless steel through solid solution strengthening. It also improves the material's resistance to stress corrosion, especially in highly concentrated chloride environments, such as a 42% magnesium chloride boiling solution.

5. Additional Considerations
While the above points cover the main characteristics, there are other factors to consider when working with stainless steel. These include formability, machinability, and the specific alloy composition, which can vary depending on the application. Choosing the right grade of stainless steel is essential to meet the functional and aesthetic requirements of the final product. Understanding these properties helps in making informed decisions during design and manufacturing processes.

CB-2333 Silicone Leveling Agent

CB-2333 silicone Leveling Agent is a polyether-modified polydimethylsiloxane copolymer, a representative silicone slippery, wear-resistant, and leveling additive. It has high compatibility and can be used in UV radiation curing systems, solvent-based systems and water-based systems. The most outstanding feature of this product is to reduce the friction coefficient and increase the smoothness of the coating film surface, which is very helpful in improving scratch resistance and anti-adhesion. In addition, this product has an express leveling effect, which can improve fluidity and gloss without affecting recoating performance. Suitable for pigmented systems, matte oils, varnishes.

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