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Corrosion resistance of various stainless steel plates
Meaning and classification of stainless steel plate corrosion
Causes of corrosion of stainless steel plate
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.
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.
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 is one of the most used metals in the world and it has received a lot of interest from various companies due to its excellent physical properties. And the invention and use of stainless steel dates back to the First World War. In this article we will give a brief analysis and introduction to Stainless Steel Coil, basic information about Stainless Steel Coil, such as the characteristics of Stainless Steel Coil. will be highlighted in this article
What is Stainless Steel Coil?
Characteristics of Stainless Steel Coil
What are the applications of Stainless Steel Coil?
Stainless Steel Coil is a common industrial accessory that comes in a wide range of sizes. For example, 201 Stainless Steel Coil, 202 Stainless Steel Coil, 304 Stainless Steel Coil, 317 Stainless Steel Coil and many more. As a widely used steel, it has good physical properties. Stainless Steel Coil can be used for almost all applications with a surface treatment that improves mechanical properties.
Stainless Steel Coil has an excellent surface quality and good brightness. Stainless Steel Coil is chemically stable, pure steel with low inclusions.
The customizability of Stainless Steel Coil is reflected in its wide range of specifications and materials. In addition to this, the high dimensional accuracy of Stainless Steel Coil allows it to be used in a wide range of applications.
Hardness indicates the ability of a material to resist the pressure of a hard object into its surface. It is one of the most important performance indicators of metallic materials. Generally, the higher the hardness, the better the wear resistance. Our Stainless Steel Coil has a very high hardness, which means that it also has excellent wear resistance.
All in all, the Stainless Steel Coil has a good performance in terms of surface quality, structure and dimensional accuracy. For any Stainless Steel Coil, we have strict quality requirements. The different types of Stainless Steel Coil are available in different sizes and price points. We recommend that you identify your application scenario before purchasing Stainless Steel Coil to avoid problems with its use. For example, Stainless Steel Coil Type 201 is mainly used for decorative tubes, industrial tubes and some shallow drawn products.
Stainless Steel Coil can be used in a variety of applications. Stainless Steel Coil is used almost everywhere in our lives, for example in automotive parts, medical appliances, building materials, chemicals, the food industry, agriculture, marine components, etc. Stainless Steel Coil has a good experience in terms of resistance to high temperatures and corrosion, which guarantees its longevity. Notably, the excellent quality of Stainless Steel Coil has very good forming properties and good weldability for use as an ultra-high strength material in the nuclear, aviation and aerospace industries.
With the above information, do you have a better understanding of Stainless Steel Coil? Jiangsu C.J.M. Stainless Steel Group is a supplier and distributor of stainless steel, nickel, steel, aluminum, titanium, brass and bronze with world class production and quality control. We have strict quality control for any of our products and we strive to give you the most excellent product experience.
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.
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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?
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.
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.
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.
The many unique advantages of stainless steel make it a strong candidate for material choice. Because of the high initial cost of stainless steel, engineers, specification personnel, and designers often underestimate or ignore these values. However, stainless steel is often the best value option over the life of a project. Here, let me tell you the benefits of stainless steel.
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l The corrosion resistance
l High and low temperature resistance
l Easy to manufacture
l Strength
l Aesthetic appeal
l Health performance
l Life cycle characteristics
Do you know that stainless steel is corrosion-resistant? This metal can withstand corrosion, rust, water stains, etc. This also makes the metal ideal for any area where extreme temperatures and pressures are possible.
When making stainless steel coil, chromium is added, which combines with oxygen in the air to form a thin film on the metal surface. The film quickly repairs itself when damaged, making the metal resistant to corrosion and rust. The corrosion resistance of stainless steel is further improved by the addition of nickel, titanium and molybdenum.
Some grades are resistant to scaling and maintain high strength at high temperatures, while others exhibit exceptional toughness at low temperatures.
Most stainless steels can be easily cut, welded, shaped, machined and manufactured.
The cold work hardening properties of many stainless steels can be used in the design to reduce material thickness, weight and cost. Other stainless steels can also be heat-treated to make high-strength components.
Stainless steel can be used for many surface treatments. It is easy and simple to maintain, resulting in a high-quality, pleasant appearance. One of the main reasons homeowners choose stainless steel for their homes is the appearance of the metal. It is stylish with a classical and modern touch. Fortunately, this metal is not only beautiful, but also powerful.
There's no denying that stainless steel just looks good. After all, there's a reason homes with stainless-steel appliances are more popular than homes without them.
The cleanliness of stainless steel pipe makes it the first choice for hospitals, kitchens, food and pharmaceutical processing equipment. Stainless steel is one of the most hygienic materials and does not support the growth of bacteria and other pathogens. Even better, the stainless steel is easy to clean and maintain, with a gentle wipe with an all-purpose cleaner followed by a quick polish along the texture to make it shine. Because stainless steel has low maintenance costs and is easy to clean, it is ideal for hospitals, kitchens and other places that need cleaning.
Stainless steel is a durable, low maintenance material and is often the cheapest choice in life cycle cost comparisons.
With so many different types of metals on the market, it can be confusing to choose the one that is right for your home. But for all the advantages stainless steel has, choosing the right metal is a no-brainer. Not only is stainless steel beautifully streamlined, but the metal is amazingly versatile and cheap. In addition, metals are promoted as easy to form and are a great choice for many projects.
CONTACT US
Jiangsu C.J.M. Stainless Steel Group is a supplier and distributor of stainless steel, nickel, steel, aluminum, titanium, brass and bronze with world class production and quality control.
+86-18092577236
info@stainless-steel-china.com
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