304 stainless steel classification how to identify the quality of 304 stainless steel

In the stainless steel market there are many different types of stainless steel, including 304 stainless steel. This kind of steel has a very good market competitiveness in the market, but also has a very good development potential, in the development of the industry by the unanimous praise. This is not only because it is its own excellent quality, but also inseparable with the variety of 304 stainless steel classification , which also makes it unique in the market. Let's take a look at the relevant knowledge of the classification of 304 stainless steel materials below!

304 stainless steel classification

(A) The specific situation of 304 stainless steel classification

1.Austin stainless steel: This kind of steel is seen in the market of stainless steel is a more steel, it contains 18% of chromium and 8% of nickel, so it has a very good Non-magnetic. At the same time, its processing performance is also good. The steel that we can buy in the market has a strong anti-corrosion capability, so it is also used in a wider range.

2.Mata Imitated Stainless Steel: The composition of this steel is similar to that of the Austen stainless steel, but it also contains a small amount of carbon and some other types of alloys. At the same time its price is also relatively cheap, can withstand heat treatment in the process of processing, and the hardening effect is also very good, the strength is also very representative, and precisely because of its own unique characteristics, so it also It is very widely used.

3. Granular stainless steel: The chromium content of this steel is relatively high, but its carbon content is relatively small. At the same time, because its chemical composition does not contain nickel, its price is relatively low, and it is also more common in people's daily lives.

4.Precipitation hardened stainless steel: This kind of steel is quite special. It is different from other stainless steel materials. The chemical composition contains copper, aluminum and titanium and other metal substances, so it hardens and strengthens the lifting space than other stainless steel. Material is significantly larger. At the time of production, it is also produced as a product that requires relatively high load-bearing capacity, and of course its service life is also very good.

5. Duplex stainless steel: The chromium content of this steel reaches 22%, which is also not comparable to other stainless steels. At the same time it also has a very good strength, in the process of use can be well adapted to different environments, and can play a good ability to resist corrosion.

304 stainless steel application range

304 is the most widely used stainless steel, heat-resistant steel. For food production equipment, general chemical equipment, nuclear energy and so on.

304 stainless steel chemical composition

Specifications C Si Mn PS Cr Ni (nickel) Mo

  

How to identify 304 stainless steel

Method one: With the help of a professional, professionals can use the color and smoothness of the steel surface to distinguish between true and false steel.

Method two: special steel inspection potion, this potion can be purchased in the general hardware store, so we can not worry about the source of the problem. 304 stainless steel, which is not discolored within 3 to 5 minutes after the inspection of the syrup. In addition, the 201 stainless steel, the syrup will instantly become dark brown red, 202 stainless steel, syrup will turn brownish red in 5 seconds, 301 stainless steel, syrup will become pale brick red in 1-2 minutes.

Method 3: The magnetic properties of the magnet and 304 stainless steel are relatively small, so we can purchase a special magnet to distinguish the true and false of 304 stainless steel according to the magnetic size. If magnetic is too large, then it should be 202 stainless steel.

304 stainless steel manufacturers recommend

Manufacturer I: Haoqing Weiye Stainless Steel Products Sales Center, Xiqing District, Tianjin

Main products: stainless steel plate; stainless steel pipe; stainless steel bar; stainless steel pipe fittings; stainless steel profiles

Business introduction: Haoqing Weiye stainless steel products sales center in Xiqing District of Tianjin was established on August 11, 2015. The company mainly develops various stainless steel products and has established a stable and cooperative relationship with many stainless steel retailers, and the product quality is reliable.

Product: 304 stainless steel plate

Specifications: 0.5*1219*C

Batch size: ≥2kg

Address: 50 meters west of Jinsong Road, Wangwenzhuang Village, Wangwenzhuang Town, Xiqing District, Tianjin

Manufacturer II: Wuxi Xin Junjie Metal Products Co., Ltd.

Main products: 310S stainless steel plate; 304 stainless steel plate; 316L stainless steel plate; 321 stainless steel plate; 904L stainless steel plate

Business introduction: Wuxi Xin Junjie Metal Products Co., Ltd. has very convenient traffic conditions and convenient transportation of various stainless steel products. The company has established long-term technical cooperation relationships with a number of stainless steel retailers, and the quality of products is generally recognized by consumers.

Product: 304 stainless steel plate

Specifications: 0.5*1219*C

Batch size: ≥1 ton

Address: No. 4-1104, Zhongbei Xincun, Nanchang District, Wuxi, Jiangsu

Manufacturer 3: Wuxi Shuangtai Stainless Steel Co., Ltd.

Main Products: Baosteel Stainless; TISCO Stainless; 316L Stainless Steel Plate; 304 Stainless Steel Plate; Lianzhong Stainless

Business introduction: Wuxi Shuangtai Stainless Steel Co., Ltd. main business model for the wholesale, the company is the most demanding is the use of the most advanced raw materials, to make the lowest price products, to give back every consumer, product design style is very novel, species complete.

Product: 304 stainless steel plate

Specifications: 0.8*1219*C

Batch size: ≥100 kg

Address: 88-505-1140, Hui'an Road, Wuxi, Jiangsu (In Wuxi Optoelectronics New Material Science and Technology Park)

  

The difference between 304 stainless steel and 201 stainless steel

1, commonly used stainless steel sheet is divided into two types of 201 and 304, the actual composition is different, 304 good quality, but the price is expensive, 201 worse. 304 is imported stainless steel plate, 201 is domestic stainless steel plate.

2. Composition: 1.201 is composed of 17Cr-4.5Ni-6Mn-N, which is an alternative steel to Ni steel and 301 steel. Magnetically processed after cold processing for railway vehicles. 2.304 is composed of 18Cr-9Ni and is the most widely used stainless steel and heat-resistant steel. For food production equipment, Xitong chemical equipment, nuclear energy and so on.

3,201 is a high manganese, bright surface with dark, high manganese content is easy to rust. 304 contains more chromium, the surface is matte, does not rust. There are two kinds of put together. The most important is the different corrosion resistance, 201 corrosion resistance is poor, so the price will be much cheaper. And because 201 contains low nickel, so the price is lower than the 304, so the corrosion resistance is not as good as 304.

The difference between 4,201 and 304 is the problem of nickel. And the price of 304 is now more expensive, generally close to 50,000 tons, but at least 304 can guarantee that it will not rust during use. (Available potions for experiment)

5, stainless steel is not easy to rust because of the formation of chromium oxide on the surface of the steel body can protect the steel body, 201 materials are high manganese steel 304 hardness than the high carbon high nickel.

6. Composition is different (mainly from the aspects of carbon, manganese, nickel, chromium, etc. to distinguish between 201 and 304 stainless steel) Steel Carbon (C) Silicon (Si) Manganese (Mn) Phosphorus (P) Sulfur (S) Chromium (Cr) Nickel (Ni) Molybdenum (Mo) Copper (Cu)

Editor's summary: These 304 stainless steel plate manufacturers sell products on the network, they use high-quality 304 stainless steel plate raw materials, improve after-sales service chain, 304 stainless steel plate all kinds of product quality strict control, the use of a very wide range, long life, sales It is higher year after year.

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