How to distinguish 304 and 201 stainless steel plates, what is its manufacturing process

How to distinguish 304 and 201 stainless steel plates

1. Technical indicators: Ordinary stainless steel is divided into two types: 201 and 304. The actual components are different. 304 has better quality, but the price is higher, and 201 has worse quality. Imported stainless steel is 304, and domestic stainless steel is 201.
2. Material: Group 201 is changed to type 17Cr-4.n-Ni-6Mn-N, and type 301 is replaced by Ni-saving steel. It has good magnetic properties and is used in railway vehicles after cold treatment. Group 304 becomes 18Cr-9Ni, which is a widely used high-temperature stainless steel. Used in food production equipment, Xitong chemical equipment, nuclear power plants, etc.
3. Pricing: 201 has a high manganese content, a very bright and dark surface, is prone to manganese production, and has a high manganese content. 304, which contains a higher chromium content, has a matte surface and does not rust. Comparing the two, the two are combined into one. In addition, the anti-corrosion performance is also different. The anti-corrosion performance of 201 is very poor, so the price will be very cheap.
4. Nickel content: The difference between 201 and 304 is mainly the nickel content. And the current price of 304 is relatively expensive, but 304 is at least guaranteed not to rust during use. (Stainless steel solution used for testing).
5. Composition: Stainless steel is not easy to rust due to the formation of chromium-rich oxides on the surface of the steel. The hardness of 201 high-manganese stainless steel is higher than that of 304, and it is low in carbon and nickel. Composition (mainly identify 201 and 304 stainless steel from several aspects such as carbon, manganese, nickel, chromium, etc.).
What is the manufacturing process of stainless steel plate

1. Normally, brushed straight grain is a straight grain obtained by mechanical friction processing on the surface of stainless steel. The processing technology of drawn sheets can not only eliminate scratches on the surface of the material, but also has a good decorative effect. Since this pattern is made by using a scouring pad or stainless steel brush to make straight or short lines on the surface of the plate, there are also long and short lines.
2. From a distance, the drawing random pattern (and pattern) is composed of a circle of sand patterns. From a close view, it is composed of a circle of irregular random patterns. These sand patterns are caused by the irregular swing of the grinding head. Then electroplating and coloring. The surface is matte and the processing technology requirements are high.
3. Using a brushing machine or a grain grinding machine, through the axial movement of the upper grinding roller, the surface of the stainless steel is brushed into wavy lines, so that the surface of the stainless steel is drawn.
4. A small motor is used, and a circle is installed in the shaft sleeve. The small motor is fixed on the table, and then forms an angle of about 60° with the edge of the table. The processing technology has certain characteristics. Then, a pallet used to fix the stainless steel plate is made into a pallet, and a polyester film is pasted on the pallet, pasted along the edge of the pallet to limit the speed of the thread.