Here are some ways to judge the quality of 201 stainless steel pipes: Appearance inspection: The surface of high-quality 201 stainless steel pipes should be smooth, flawless, crack-free, scratch-free, etc., and the color should be uniform and consistent. Thickness measurement: Use appropriate tools to measure the wall thickness of the pipe. The uniform and standard-compliant ones are generally of good quality. Material testing: Professional testing methods can be used to determine whether its chemical composition meets the standards of 201 stainless steel. Corrosion resistance test: For example, place the pipe in some corrosive media for a period of time to observe its corrosion. Strength test: Mechanical properties such as stretching and bending can be tested. High strength usually has better quality. Welding quality: If there is a welded part, check whether the weld is firm and has no defects such as pores. Manufacturer reputation: Choose a well-known and reputable manufacturer, and its product quality is often more guaranteed. Certificate review: Request to view relevant quality certification certificates, test reports, etc. Magnetic detection: 201 stainless steel pipes usually have a certain degree of magnetism, but the strength of magnetism can also reflect the quality to a certain extent. Process precision: Observe...
Food-grade stainless steel refers to the part of food machinery that comes into contact with food and must meet certain food safety requirements. Because a lot of acid and alkali are used in the food production process, stainless steel must be used; stainless steel contains chromium, and unqualified stainless steel will dissolve chromium at various prices and is toxic; moreover, it is required to limit the content of various alloy impurity elements such as lead and cadmium. . Food-grade stainless steel is a stainless steel material that is required to comply with the regional specifications, and its lead and chromium content is much lower than that of ordinary stainless steel. All kinds of food storage containers and food processing machinery should be made of austenitic stainless steel. All kinds of tableware should be made of martensitic stainless steel. For surface anti-corrosion treatment of food-grade stainless steel, the latest, environmentally friendly and universal Senyuan brand stainless steel passivation liquid, stainless steel pickling passivation liquid and stainless steel electrolytic polishing liquid can be used to treat the surface according to different needs, in order to improve the surface of food-grade stainless steel. The purpose of improving corrosion resistance and increasing surface aesthetics....
The differences and uses of stainless steel 2D surfaces and 2B surfaces can be briefly summarized from the following two blocks: 1. Introduction to the differences between stainless steel 2D surface and 2B surface: Many customers still don’t quite understand the difference between the 2D surface and the 2B surface of stainless steel. Here is a brief introduction: NO.1 Silvery white, matte. A rough, matte surface that is hot-rolled to a specified thickness and then annealed and descaled. Uses that do not require surface gloss. NO. 1 Stainless steel 2D surface, silver-white cold rolling, heat treatment and pickling, sometimes a final light rolling on the rough side roller, a matte surface processing 2D product used for purposes that do not have strict surface requirements, general materials, Deep drawing materials. NO. 1 The surface gloss of stainless steel 2B is stronger than that of stainless steel 2D. After surface treatment of stainless steel 2D, it is subjected to a final light cold rolling with a polishing roller to obtain appropriate gloss. This is the most commonly used surface treatment and can also be used as the first step in polishing. The 2D surface of general stainless steel is also one of...
With the development of the times, the stainless steel pipe industry is constantly innovating. 304 colored stainless steel pipes gradually appeared and were welcomed by the market. Colored stainless steel pipes, as the name suggests, add some processes to the original color of 304 stainless steel pipes to make them become colored stainless steel pipes. There are mainly five processes for colored stainless steel pipes: Wood grain transfer, vacuum plating, baking paint, spray coating, copper plating. 1. Stainless steel wood grain pipe: The stainless steel wood grain pipe produced by thermal transfer technology is sunproof and rainproof. It is not only brightly colored like wood texture, but also has an eye-catching and moving effect. It is the best choice for making stainless steel decorative pipes. After testing, this product does not release formaldehyde, toluene and other harmful gases to the human body that are usually caused by wooden boards. It is resistant to salt spray, corrosion, wear and scratches. It has an elegant appearance, moisture-proof, fire-proof, and sound insulation properties. 2. Vacuum electroplating: It is a physical deposition phenomenon. That is, argon gas is injected under a vacuum state, and the argon gas hits the target material. The target material...
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