Type 316 Cold Rolled Steel Sheet- China Factory Suppliers Manufacturers

Stainless steel is one of the most common materials, with high temperature resistance, good processing performance, and strong corrosion resistance. It is often used in the food industry, household goods and medical appliances. It has a wide range of applications, and it has become a mature system today. There are many types of stainless steel. However, many people are worried about the quality of stainless steel. This article will answer your doubts.

• Why is the quality of stainless steel good?

• The advantages of stainless steel.

• Basic characteristics of stainless steel

Why is the quality of stainless steel good?

In terms of the quality of stainless steel, we have a strict technological process as a guarantee. The so-called quality of stainless steel, the key is the material and technology of stainless steel. Our stainless steel products have excellent surface quality, good brightness, stable chemical composition, and pure steel. Whether it is in appearance or environmental protection, it will be strictly guaranteed. Our company is mainly customer-oriented, honesty, reputation first, the market values, the pursuit of excellent quality, continuous innovation and development direction. At the same time, our company has the double guarantee of ISO9001: 2000 and ISO14001: 2004 certificates. Therefore, our stainless steel can have excellent quality.

The advantages of stainless steel.

Beautiful

The appearance of stainless steel is polished, the appearance is silvery luster, beautiful and bright, the hand feels smooth and delicate, not easy to rust, and it will last forever; through advanced casting process, it is corrosion-resistant, abrasion-resistant, acid-resistant, and alkali-resistant, and has good physical properties.

Environmental protection

The material does not contain lead, does not have any exuded substances, does not produce peculiar smell, and ensures the quality of the water is healthy, hygienic and does not pollute the water quality.

Durable

After actual tests, its life span can be as long as one hundred years. During this period, there is little need for special maintenance.

The above are the main advantages of stainless steel. Stainless steel is a safe, environmentally friendly and durable material. When using stainless steel in normal times, we need to pay attention to the working environment and clean it regularly to avoid rust. The application of stainless steel products is becoming more and more common, which is mainly attributed to the continuous research and development of stainless steel application technology, which makes the production and use cost of stainless steel lower and lower.

Basic characteristics of stainless steel

Chemical properties

The resistance to chemical corrosion and electrochemical corrosion is the best among steel materials, second only to titanium alloys.

Physical properties

Heat resistance, high temperature resistance, low temperature resistance and even ultra-low temperature resistance.

Mechanical properties

According to different types of stainless steel, the mechanical properties are different, which also makes the types of stainless steel more and more.

Have you learned more about Stainless Stell Coil from the above information?Stainless Steel Coil is a product with a wide range of applications. Jiangsu C.J.M. Stainless Steel Group is a supplier and distributor of stainless steel, nickel, steel, aluminium, titanium, brass and bronze with world class production and quality control. Our company strives for excellence, constant innovation and development in the direction of quality. We have strict quality control over any of our products and we strive to give you the best product experience.

At present, the stainless steel commonly used in kitchen equipment mainly includes 201 and 304. 201 stainless steel is cost-effective, cheap, but easy to rust; 304 stainless steel is the most widely used stainless steel material, not easy to rust, good quality, the price is also higher than 204.

There is almost no difference between 201 stainless steel plate and 304 stainless steel plate, which can hardly be distinguished by naked eyes. Here are some methods to distinguish them.

 

1. Specification: commonly used stainless steel plate is divided into 201 and 304 two models, the actual composition is different, 304 good quality, but the price is expensive, 201 poor. 304 is imported stainless steel plate, 201 is domestic stainless-steel plate.

 

2. The composition of 201 is 17cr-4.5ni-6mn-n, which is the substitute of 301 steel. It has magnetism after cold working and is used in railway vehicles.

 

3. The composition of 304 is 18cr-9ni, which is the most widely used stainless steel and heat-resistant steel. For food production equipment, chemical equipment, nuclear power, etc.

 

4. 201 stainless steel plate has high manganese content, bright surface with dark brightness, high manganese content is easy to rust, manganese is also harmful to human nervous system, so 201 stainless steel plate is not suitable for food grade equipment. 304 contains more chromium, the surface is matte, not rusty. The two are compared together.

The most important thing is that the corrosion resistance is different. The corrosion resistance of 201 is very poor, so the price is much cheaper. Because 201 has low nickel content, the price is lower than 304, so the corrosion resistance is not as good as 304. And 304 stainless steel safety belongs to the edible grade material, at present, the edible grade stainless steel is 304 stainless steel plate and above.

 

5. The difference between 201 and 304 is the nickel content. And the price of 304 is more expensive now, but 304 can at least guarantee that it will not rust in the process of use. (stainless steel solution can be used for experiment)

 

6. The reason why stainless steel is not easy to rust is that chromium rich oxide formed on the surface of steel body can protect the steel body

 

7. Different composition (mainly from carbon, manganese, nickel, chromium to distinguish 201 and 304 stainless steel)

 

Steel grade carbon (c) silicon (SI) manganese (MN) phosphorus (P) sulfur (s) chromium (CR) nickel (Ni) molybdenum (MO) copper (Cu)

 

AISI(304) ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.03 18-20 8-10

 

AISI(201) ≤0.15 ≤1.00 5.5-7.5 ≤0.05 ≤0.03 16-18 3.5-5.5

 

Therefore, 304 stainless steel is the best material for the production of kitchen equipment. However, many unscrupulous businesses in the market now use 201 stainless steel to fill 304 stainless steel, which is difficult to distinguish when accepting. Therefore, when purchasing stainless steel kitchenware and kitchen equipment, first of all, do not choose brands lower than the industry price.

In the air or chemical corrosion medium can resist corrosion of a high alloy steel, stainless steel plate is a kind of steel with beautiful surface and good corrosion resistance, without surface treatment such as plating color, and play the inherent surface properties of stainless steel plate, used in many aspects of steel, commonly known as stainless steel plate.

• Here is the content:

• Corrosion resistance of various stainless steel plates

• Meaning and classification of stainless steel plate corrosion

• Causes of corrosion of stainless steel plate

Corrosion resistance of various stainless steel plates

304 is a kind of universal stainless steel, which is widely used in the production of equipment and parts requiring good comprehensive performance (corrosion resistance and formability). 301 stainless steel plate shows obvious work hardening phenomenon during deformation, which is used in various occasions requiring higher strength. In fact, the higher strength of 304 stainless steel plate can be obtained by cold rolling 302 stainless steel plate. 302B is a kind of stainless steel plate with high silicon content, which has high oxidation resistance at high temperature. 303 and 303se are free cutting stainless steel plates containing sulfur and selenium respectively, which are mainly used in the occasions requiring free cutting and high surface gloss. 303se stainless steel plate is also used to make hot upsetting parts, because under such conditions, this kind of stainless steel plate has good hot workability. 304L is a variant of 304 stainless steel plate with low carbon content, which is used for welding. Low carbon content reduces the amount of carbide precipitated in the HAZ near the weld to the minimum, which may lead to intergranular corrosion (welding erosion) of stainless steel plate in some environments. 304n is a kind of stainless steel containing nitrogen. The purpose of adding nitrogen is to improve the strength of the steel. 305 and 384 stainless steel plates contain high content of nickel and have low work hardening rate, so they are suitable for various occasions requiring high cold formability. 308 stainless steel plate is used to make welding rod. The nickel and chromium contents of 309, 310, 314 and 330 stainless steel plates are relatively high, in order to improve the oxidation resistance and creep strength of the steel at high temperature. However, 30s5 and 310S are variants of 309 and 310 stainless steel plates. The difference is that the carbon content is lower, so as to minimize the carbide precipitation near the weld. Type 316 and 317 stainless steel plates contain aluminum, so their resistance to pitting corrosion in marine and chemical industrial environment is much better than that of 304 stainless steel plate. Among them, type 316 stainless steel plate is a variety, including low carbon stainless steel plate, high strength stainless steel plate containing nitrogen and free cutting stainless steel plate with high sulfur content. 321, 347 and 348 are stainless steel plates stabilized with titanium, niobium plus tantalum and niobium respectively. They are suitable for welding components at high temperature. 348 is a kind of stainless steel plate suitable for nuclear power industry, which limits the amount of tantalum and drill.

The meaning and classification of stainless steel plate corrosion

In the corrosive environment, the damage caused by chemical or electrochemical interaction between metal and the surrounding medium is called corrosion. In the corrosive environment, when the stainless steel plate is not selected properly, corrosion will also occur. There are many ways to classify corrosion. According to the nature of the action, it can be divided into chemical corrosion and electrochemical corrosion. According to the form of corrosion, it can be divided into general (overall, uniform) corrosion. The so-called general corrosion and system corrosion are distributed on the whole surface of stainless steel plate, such as local corrosion, pitting corrosion, crevice corrosion, stress corrosion, corrosion fatigue, selective corrosion, erosion corrosion, etc. According to the environment and conditions of corrosion, it can be divided into atmospheric corrosion, industrial water corrosion and soil corrosion. Acid, alkali. Salt corrosion, seawater corrosion, high temperature corrosion (including liquid metal, molten salt, gas corrosion), etc.

Causes of corrosion of stainless steel plate

A recent study by British scientists shows that the tiny high concentration area of manganese sulfide in stainless steel plate can cause corrosion of stainless steel plate. Stainless steel plate is an alloy of iron, chromium and nickel, which first appeared in the early 20th century. Due to its excellent corrosion resistance, stainless steel plate is often used in the harsh working environment, or in the manufacture of tableware and medical appliances. The corrosion rate of stainless steel plate is very slow. Under ideal conditions, it can only corrode 1 cm every 1 million years. However, in practical application, corrosion often occurs and expands in a certain place, which eventually leads to the corrosion of the whole stainless steel plate. There are many theories that impurities in stainless steel plates lead to corrosion, but the specific mechanism of corrosion is not very clear. In the latest issue of the British journal Nature, a British research team reported their findings on the corrosion process of stainless steel plates. They found that the tiny high concentration area of manganese sulfide in stainless steel plate was the main culprit of corrosion. The corrosion sites are not random, they always occur in the area of hundreds of nanometers around small pieces of manganese sulfide. Scientists' research shows that in the manufacturing process of stainless steel plate, manganese sulfide produces high concentration accumulation in the local area, which leads to the decrease of chromium concentration in the surrounding area. Chromium and oxygen react to produce chromium oxide, which can prevent corrosion. The corrosion of low concentration chromium area first occurs, and then gradually extends to the whole stainless steel plate. In water with salt, the process becomes more rapid.

If you want to buy stainless steel plate, please find Jiangsu C.J.M Stainless Steel Group. The company has a variety of stainless steel products for customers to choose from. Tel. + 86-18092577236, post office postmaster@ssplatechina.com.

Stainless steel sheet surface is smooth, has higher plasticity, toughness and mechanical strength, acid, alkaline gas, solution and other media corrosion. A stainless steel sheet is an alloy steel that does not rust easily, but is not absolutely rust free. Stainless steel is a group of iron-based alloys that contain a minimum of approximately 11% chromium, a composition that prevents the iron from rusting and also provides heat-resistant properties. Different types of stainless steel include the elements carbon (from 0.03% to greater than 1.00%), nitrogen, aluminum, silicon, sulfur, titanium, nickel, copper, selenium, niobium, and molybdenum. Specific types of stainless steel are often designated by a three-digit number.

Here is the content list:

• What are the applications of stainless steel sheets?

• How to choose the right stainless steel sheet?

• How to identify your stainless steel is real or not?

What are the applications of stainless steel sheets?

Because of their relatively attractive appearance, stainless steel sheets are used for both decorative and structural purposes. They can be laid over a wood base to create a countertop or table, and are also a popular finish for kitchen backsplashes. Many appliances and machines are made using a stainless steel sheet casing, as are many cars and airplane bodies. Metalworkers use these sheets to create artwork and architectural elements, while electronics manufacturers rely on stainless steel sheets when building equipment casing and some operating components.

How to choose the right stainless steel sheet?

1. Before choosing stainless steel sheets, the use and environment of stainless steel sheets should be considered. For example, welded pipes are usually used for decoration, seamless pipes are usually used for fluid transportation, sanitary stainless steel sheets are used for medical treatment or kitchens, and thick-walled pipes are used for pressure. Generally, 200 series materials are sufficient indoors, 304 stainless steel sheets are sufficient outdoors, and 316 materials or above are usually used in acid-base places or coastal areas.

2. When purchasing stainless steel sheets, high-quality products assessed by the Bureau of Quality and Technical Supervision shall be selected. Long-term use of witnesses and good customer reputation are the most direct and effective purchase methods.

How to identify your stainless steel is real or not?

Many daily necessities and facilities made of 3004 stainless steel are used in our daily life, such as 304 stainless steel water tanks, stainless steel sinks, etc. These 304 stainless steel products greatly facilitate people’s lives, but people will also encounter them in their lives. To some merchants who use fake 304 stainless steel plates or non-304 stainless steel plates to mislead consumers with fake 304 stainless steel plates or non-304 stainless steel plates, which has brought immeasurable losses to consumers.

Learn more about stainless steel sheets can know the applications of stainless steel sheets and how to choose the right stainless steel sheets. If you want to buy good stainless steel sheets at a reasonable price, Jiangsu C.J.M. Stainless Steel Group is your best choice. Whether from quality or price, or delivery time, we can help customers to open up a further and larger market. We have all types of stainless steel sheets, if you have any questions, you can contact us or search us online.

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