How to distinguish high-quality colored stainless steel
1. First, identify the material of stainless steel material
At present, the most commonly used materials for colored stainless steel in the market are 201, 304, 316L and other types of stainless steel, which are colored and processed. Among them, the material with the best corrosion resistance is 316L, and the worst material is 201, and their prices are also quite different. , so many businesses use 201, which is inferior in material, to replace 304 and 316L. Therefore, during the purchase and inspection process, it is necessary to strictly check whether the material of the plate is the one agreed upon at the beginning, and different materials of stainless steel can be distinguished by testing chemicals.
2. Stainless steel surface coloring process
Similarly, the stainless steel coloring process is also one of the important factors that determine the price. The water plating coloring process obtains the color due to the use of chemical solution soaking. Compared with the vacuum plating coloring process, the difference is that the bonding force between the vacuum plating coating layer and the workpiece surface is stronger. Larger, the hardness of the film layer is higher, the wear resistance and corrosion resistance are better, and the performance of the film layer is also more stable, such as titanium gold stainless steel. The golden yellow surface of titanium gold plated by water gives people the impression that it is sprayed on; vacuum electroplating Coating does not produce toxic or polluting substances. Water plating will produce wastewater pollution. Compared with vacuum ion plating, the color is not as pure and crusting will occur, but the price is much cheaper than vacuum plating. Since it is generally difficult to distinguish the colored stainless steel material or the coloring process with the naked eye, it requires professionals with rich experience to distinguish the quality. Therefore, when choosing to purchase colored stainless steel decorative materials, be sure to find a professional , Purchase from a reputable processing factory, and do not delay the decoration project for the sake of petty gains.
3. Observe the metal surface
Because colored stainless steel is mainly used in building decoration projects, the decorative appearance of its surface is particularly important. Therefore, when inspecting the goods, it is necessary to carefully inspect and observe the surface to see if there are defects such as color difference, uniform coloring, good color, scratches, blisters, peeling water marks, etc. between the boards. Especially for titanium, the surface has a mirror effect. If the quality is good, the surface should be free of scratches and horseshoe marks, and the brightness should be high. Of course, the price will be relatively high.