Alltin fastener teaches you how to distinguish whether it is a 304 stainless steel screw? Alltin Fastener (Suzhou) Co., Ltd. specializes in the production of screws and other fasteners. I also understand the unknown insider information in screw production, which requires lower prices compared to market competition. Therefore, many manufacturers choose to use low-priced materials. But our customers all hope to use screws with low prices and good quality. The editor of Alltin now teaches everyone how to distinguish the authenticity of 304 stainless steel screws.

1. Visual inspection is one of the simplest and most commonly used identification methods. By observing the appearance characteristics of 304 steel, the material can be preliminarily determined. The appearance of 304 steel usually presents a bright silver white color, with a flat and smooth surface, and no visible defects or scratches. In addition, the material of 304 steel is uniform and there is no obvious granular structure. If there are obvious color differences, oxidation spots, or irregular surface textures, it may be defective from other steel or 304 steel.

2. Through magnetic identification: The magnetic properties of 304 stainless steel are completely different from those of other materials, which means that the magnetic properties of 304 steel always show weakness. This means that if stainless steel has weak magnetism or no magnetism at all, it should be classified as 304 or 316 material; If it exhibits strong magnetism similar to carbon steel, it is judged that it is not made of 304 material.

3. Use professional stainless steel identification potion: The operation is simple, as long as the potion is dropped on the stainless steel, the color and reaction speed can be used to determine the stainless steel model. Quick response, stainless steel model can be identified in a few seconds. 201 stainless steel shows deep red silk, 301 shows light red, and 304 shows colorless or light yellow.

4. Metallographic microscope analysis is a commonly used method for identifying metal materials. By observing and analyzing the microstructure of 304 steel, its material can be determined. Under the metallographic microscope, the microstructure of 304 steel usually appears as an austenitic structure. Austenite is a solid solution composed of iron, chromium, nickel, and other elements, with a uniform lattice structure. If other phases or uneven lattice structures are observed in the Xianao structure, it may be a defective product of other steel or 304 steel.

304 stainless steel is a common material in stainless steel, with a density of 7.93g/cm3, also known as 18/8 stainless steel in the industry. High temperature resistance of 800 ℃, with good processing performance and high flexibility, widely used in industrial and furniture decoration industries, as well as food and medical industries.

Alltin Fastener (Suzhou) Co., Ltd. is a company specializing in the production and manufacturing of fasteners, which can customize screws of various materials and specifications,and all 304 stainless steel screws produced are made of high-quality 304 stainless steel.Feel free to contact us if needed.