Many different kinds and usages of anti-corrosion steel coating are now on the market and they are used even in the dentistry industry. Caries are one of the most common infectious diseases in children. Its treatment in children varies according to the spread of the lesion and the behavior of the child. Among the various processing methods, the use of prefabricated metal veneers or SSC has a special place. SSC Widely used in children's dentistry to restore broken milk teeth. Use pulpotomy, pulpectomy, extensive structural defects, and multi-level caries. These covers were first introduced by the Rocky Mountain Company and popularized by RJ Engel and Humphery in the 1950s. Since then, they have been used as an excellent option for treating baby teeth. Stainless steel veneers are one of the most effective and durable restorations for protecting primary molars. They are considered worldwide. Several retrospective studies have compared the durability of SSC with amalgam. They all show that SSC is superior to multi-grade amalgam. In general, stainless steel coatings are very successful regardless of the method and type of preparation. 
Among the many restorative materials used in pediatric dentistry. There is no doubt that prefabricated metal covers have a special place. More than just repairing cavities. Instead, use these prefabricated veneers to maintain occlusion in the reconstruction of primary teeth. This is necessary and necessary for severely damaged crowns. Applications in stainless steel Stainless steel has many uses. It is usually used when the probability of corrosion is very high and not allowed. Some of these elements include:
- Food industry equipment
- Equipment for the pharmaceutical industry
- Aero engine parts
- Kitchen Appliances
- special type of plug
Applications of galvanized steel Galvanized steel is used where less corrosion is permitted and appearance is not critical:
- Spiral conveyor
- car related parts
- some plugs
- construction beam
- metal cabinet
- fence
- metal pavement
- traffic signs
- lamppost
One of the fundamental problems with ironwork is its potential to corrode or rust, which can lead to structural failure if left unchecked. This problem has caused manufacturers to look for solutions to prevent rust. For this purpose, stainless steel and galvanized steel with high oxidation resistance are introduced as replacements for ordinary steel. Both sheets of steel resist rust and corrosion when exposed to moisture and rain. But the biggest concern for consumers is what is the difference between stainless steel and galvanized steel. In answering this question, it must be said that there are differences in the characteristics and properties of stainless steel and galvanized steel due to the difference in composition and production method of stainless steel and galvanized steel. Knowing the difference between stainless and galvanized steel will help buyers choose the best option for their project and budget. Stainless steel or stainless steel is actually a steel alloy that has anti-rust properties due to its special compounds. This steel is also known as steel in the Iranian market. The rust resistance of this steel is due to the presence of chromium, which is highly resistant to corrosion. Typically, stainless steel alloys have about 11% chromium, and this amount of chromium, in addition to its rust prevention properties, makes stainless steel shine. There are other chemical elements such as nickel, molybdenum, and manganese in the composition of stainless steel. Each of these elements adds unique properties to this steel alloy and creates different grades of stainless steel. Plain steel covered with zinc metal is called galvanized steel or sometimes galvanized steel. In the galvanizing method, zinc metal is placed on the iron steel as a thin layer. By forming a protective layer of zinc oxide, this coating actually acts as a barrier to prevent the steel from rusting due to moisture and oxygen. 
In this method, the zinc metal acts as the anode and sacrifices itself to the iron underneath. If the protective zinc coating is scratched and slightly damaged, the steel will still not rust and corrode. Because the remaining zinc continues to function. However, if the amount of damage to the zinc coating is too high, it no longer has protective properties. Application of galvanized sheet Galvanized sheet has a wider range of applications than stainless steel due to its cost-effectiveness and good rust and corrosion resistance. Some applications of the galvanized sheet are:
- Manufacture parts for household appliances and kitchen equipment
- Cooler ducts and chimneys, gutters and fabrication pipes
- Building construction, in particular, construction of gable roofs, the main body and roof of sheds and halls, and construction of tanks
- Manufacture of car parts and agricultural machinery
- Used to build guardrails and signs during road construction
- Construction of fences and footbridges
- Production of structural beams and water and heating pipes
Comparison of steel sheet and galvanized sheet Before we examine the difference between stainless and galvanized steel. It is necessary to say that these steels have a common purpose and that is to prevent rust. Due to their composition and properties, both steels can achieve this. So we can say that there are similarities between them, but the difference between stainless steel and galvanized steel is that it determines which one is best for your intended use. In the following, we will compare the differences between these two steels so that you can choose the most suitable type. 
The difference between the production methods of stainless steel plate and galvanized steel plate The method of manufacturing stainless steel alloys is based on casting. To make stainless steel, the components of the alloy are melted in a first step to bond with each other. In this step, chromium metal and other alloying compounds are added to the general steel composition. The excess carbon content is then removed by polishing the molten metal. The third step is to adjust the composition of the steel to remove unwanted elements while maintaining the original composition. Then, to form the steel, it is placed inside a mold. Then, after the hot rolling, a cold rolling process is carried out using rolls. To soften the steel and improve its properties, it is time for the annealing phase. The steel is annealed and then cut, and finally, the cut stainless steel is polished for a beautiful appearance. Galvanized steel is produced in a completely different way. For the production of galvanized steel sheets, boards or oil sheets undergo a galvanizing process to resist corrosion and rust. The galvanizing process can generally be carried out in two ways: hot galvanizing (immersion in the molten bath) and cold galvanizing (electrolysis and immersion in an electrode solution). In this method, a layer of zinc metal is placed on the surface of carbon steel. In the electroplating process, the thickness of the zinc layer is about a thousandth of an inch or micron. The compositional difference between steel and galvanized steel Part of the difference between stainless steel and galvanized steel has to do with the composition of steel and galvanized steel. As we explained in the previous section, stainless steel is rust resistant due to the presence of chromium and the formation of chromium oxide. In fact, the structure of stainless steel alloys is different from ordinary steel, it is a combination of two or more metals mixed together in the melting stage. Galvanized steel is steel that has zinc metal added to the surface to prevent rust and form a surface bond with it. 
The difference between the strength of stainless steel and galvanized steel As you can guess, stainless steel has much higher electrical resistance compared to galvanized steel. The reason is due to the combination of these two steels. During the production of stainless steel, chromium is added to it during the melting stage and forms a chemical bond with the iron, changing its structure. But in galvanized steel, zinc metal is only placed as a thin layer on the surface of the steel. It is true that metallurgical fusion occurs between steel and zinc during electroplating, but these bonds are very thin and not as strong as those between chromium and steel. The thin coating of galvanized steel will wear off over time. Chromium, on the other hand, repairs itself even after the coating is gone, resulting in greater resistance. 
Anti-corrosion coating
Anti-corrosion coating of steel is also called stainless steel. A large amount of chromium (at least 11%) is used to make this steel. The presence of chromium in steel makes it resistant to corrosion. Due to chromium's effective properties and high rust resistance, its consumption in this type of alloy should not be less than 11%, as chromium strengthens the steel and increases its strength against rust and corrosion factors. Besides chromium, other alloys can be used to make such steels, among which nickel, nitrogen, and molybdenum can be mentioned. Nickel is used to increasing the flexibility and malleability of stainless steel. Scientists have found that, in addition to making steel in a conventional way, by adding certain amounts of chromium and nickel to the elements of steel production, it is possible to obtain steel with high resistance to rust and corrosion factors. Stainless steel is used in many industries, such as the production of electrical appliances. Both are cost effective considering all the advantages of stainless and galvanized steel. Because of their long life and ease of maintenance and repair. However, stainless steel is more expensive due to its special alloy composition and greater resistance and strength. But galvanized iron is more economical and easier to get. But in many cases the price difference between stainless steel and galvanized sheet leads to the wrong choice. The size and weight of steel parts made of galvanized steel or stainless steel also greatly affect the price difference between these steel parts. Price difference between galvanized pipe and stainless steel pipe The difference in the price of pipes made of galvanized steel and stainless steel is related to the size and specification of the pipe. The larger the pipe, the greater the cost difference between galvanized pipe and stainless steel pipe due to the more raw materials used. Because stainless steel alloys are more expensive. 
price difference between galvanized pipe fittings and stainless pipe fittings The issue that affects the price of accessories is the amount of processing and casting. Therefore, the price of accessories made of galvanized steel and stainless steel is not much different. This difference is much smaller in larger collections, as the price of raw materials is only a fraction of the final price of these collections. The difference between galvanized bolts and stainless steel bolts As with pipe fittings, the most important factor affecting the cost of bolts and nuts is the amount of processing, and the impact on the final cost of raw materials is much less. However, because manufacturers make galvanized bolts and nuts more widely, these products are less expensive than stainless steel bolts and nuts. The price difference between galvanized wire and stainless steel wire The price of the thread is entirely dependent on the consumption of raw materials. Therefore, stainless steel wire is always more expensive than galvanized wire. The difference between steel and galvanized steel, do not replace them with aluminum Aluminum is a metal with very high resistance to corrosion and rust. It is therefore considered that steel or galvanized steel can be used instead. In addition to stainless steel, these metals have their own advantages and disadvantages. For this reason, each of them is suitable for a specific user. It is true that stainless steel is always more expensive than galvanized steel and aluminum, but they do not need to be replaced either. Especially in sensitive stainless steel applications, such as in the pharmaceutical and food industries. 
Finally From the above materials, it can be said that they are all suitable substitutes for steel. Therefore, choose one over the other. Because the project's goals and the budget amount are the most important determining factors. In general, for structures where rust is not a serious problem, choosing galvanized steel seems ideal. Stainless steel is suitable for constructions where the rust resistance of the steel is extremely important. Because of the cost, the project should also consider a lot of money.