Black stainless steel sheet is one of the famous products in the market and during the process of making it the metal process should be anodized to pass to the next level. An important point about the types of steel sheets is that in addition to the existence of different steel grades, there is a different division according to the types of operations performed in the production of steel sheets, and then according to the grades available in the general. market. 
The types of steel plates are divided into 4 main categories depending on the type of production operation, including black or hot plates, cold plates, galvanized plates, colored plates, alloy plates, and stainless steel plates. Category It includes other subcategories. Acid-washed plates fall into the category of black plates, or blinds and sinus plates for roofs are colored galvanized plates that have many fans among buyers. The steel plate obtained during hot rolling is called a board. Hot-rolled sheets are available in the market in ribbed, architectural, industrial, and anti-wear types. Note that during the rolling of steel sheets, the temperature of the steel sheet, generally rises above the ambient temperature, making the steel softer, so that during the rolling process, the thickness of the steel sheet will increase. At the same time, the rolling temperature during the production of the board is higher than its recrystallization temperature (about 1100 degrees Celsius), and the surface of the plate after production is in a matte state, which is why the hot-rolled plate is called a board. Sheets on the front. The price of different types of steel sheets will vary depending on their thickness, but the complexity of the production process, properties and alloying elements used to make the steel sheet will be important determinants in estimating its final price. 
black stainless steel sheet metal
Stainless steel has different varieties. Black stainless steel sheets are one of them. The metal in the sheets may vary as well. Steel sheets are produced mainly by hot and cold rolling methods, the products obtained by cold rolling include oiled, colored and galvanized sheets, in the case of hot rolling the products are made in the form of thin sheets, rolls with a simple structure, resistant to wear and ribbed edges. For the board in the production process, the steel is placed at a temperature higher than the recrystallization temperature of the steel, and the thickness is over 1.5 mm, and the different thickness determines the price of the board, it is smooth and polished, but the surface quality is low. It is made of a cold plate, of course, it is thicker and sometimes paid to use, it is cheaper than cold plate-like oil, so they are used in various applications where appearance is less important.
3 Important differences between black and oily sheets
The first noticeable difference between black and oiled paper is their appearance. Black plates have a matte appearance, while oil plates have a glossy finish. 
The second most important difference between these plates is their surface quality and dimensional accuracy, in general, oiled plates have better dimensional quality. Another important difference that is clear between switchboards and oil panels is the difference in regular sizes on the market. Generally, cold plates seen on the market are in the range of 0.3 to 3 mils, while boards are produced in the range of 1.5 to 30 mils. As a primary product to produce industrial, architectural parts, etc., switchboards, according to two standard grades ST52 and ST37, can be said that switchboards and their quality control are very important and useful for the industry.
black anodized stainless steel sheet
Black anodized stainless steel sheet is another product that we want to discuss here. It is said that this product is used as a primary product to produce industrial, construction parts, etc. Considering its two famous qualities, it can be said that the board and its quality control are very important for the industry; use this product includes: 
- Building materials such as water heaters, different types of materials (closed or open types such as columns, boxes, French, frames, etc.), beams
- agricultural equipment
- In the automotive industry, for the manufacture of rims and other parts
- Tank in shipbuilding
- Tanker construction and tanks and pipelines
- Heavy metal industry
- Crash barriers and traffic equipment
- Belt punch plate
As previously mentioned, the ST37 quality is used in light industries such as construction and profile production, and the ST52 quality is used in oil tankers and heavy industry due to its higher resistance.
Black sheet production stage
Processing of iron ore for pellet production of iron fungus: The iron ore together with the impurities in it is converted into pellets, called pellets, and roasted, in the process of direct reduction the pellets react with carbon to obtain pure iron, and oxygen is lost. In form of a sponge, also known as sponge iron, is used in the next step. Molten steel production: In this step, the iron sponge is placed in an arc furnace to be melted into steel. The quality of the iron sheet is determined according to the composition of chemical elements added at this stage after slag removal and gas is blown to make the composition uniform. 
To use and get information about the black sheet in this way, you should first look at what your purpose is, and then consider various factors.
black stainless steel sheet metal screws
To fix the black stainless steel sheet we need metal screws. In order to get the best shape and form during the installation of the black steel sheets, we have some methods. Most steel sheets are made by both hot rolling and cold rolling. Blackboard is a type of steel produced under high-temperature hot rolling in factories. Hot-rolled sheets are the same as commercially available black sheets, in sheet and roll form, with simple structure, anti-wear, and ribbed type. Given the price of iron, the construction industry requires different types, sizes, and shapes of sections. Boards are used for the construction of various structures such as stadiums, airports, buildings, department stores, railway stations, and vehicle stations. Boards are used to make pressure vessels. Systems such as steam boilers or gas storage tanks can be considered pressure tanks. Depending on the working conditions, pressure, and temperature of these tanks, you can use boards with a fine-grained or coarse-grained structure. 
The military industry often requires high-strength steel sheets to build its structures and equipment. Steelworks often produce customized products according to standards set by the Department of Defense and other departments such as the Army, Air Force, and Navy. Boards are used in the military industry to make tanks, jeeps, trucks, and land vehicles as well as helicopters, jets, and other aircraft. The Navy uses these steel plates for shipbuilding and naval repairs. The automotive industry uses black sheets for some parts. Of course, the oil plate is mainly used to make the body. This is why the price of the board affects the price of the car. Construction of car chassis or frames, construction of undercarriage parts, and car suspension systems are the use of boards in the construction industry. 
black coated stainless steel sheet
Due to its special alloy composition, the black stainless steel coating will never rust, so it is durable and a good choice for retrofitting. Steel coatings sheets are suitable for wet places that often handle water, such as bathrooms and toilets, pool counters, kitchens, columns, and interior walls and the exterior of buildings. A metal plate is a special piece of metal made of an alloy of two or more metals or pure stainless steel. The basic material for these alloys is iron, and the carbon content of this alloy model is about 2%. In the metal industry, there are different types of steel plates, they all have their own names, each type of steel plate serves different purposes and there are different sizes and resistances in the market. The most important feature of steel plates is that some are attracted to magnets, and some are not attracted to magnets.Interestingly, stainless steel plates containing nickel are not attracted to magnets. This means that the nickel in these flakes creates a repulsive state between the magnet and the specified metal. Conversely, steel sheets without a nickel in the alloy will be attracted to the magnet very quickly. There are two main ways to use the steel cover of the door: to glue the steel plate to the iron frame of the door and to weld the steel plate to the steel frame of the door. Most steel door pockets are used for doors in different sizes and shapes. 
The steel door cover is placed on the door frame. This coating covers everything, so it leaves no room. These steel doors are a suitable choice for the entrance to commercial, office, and residential buildings.
black oxide stainless steel sheet metal screws
Sometimes the metal screws in the black stainless steel sheets, are oxide which is because of the alloys of Iron in the materials used. In hot rolling of ingots, about 2% of the rolled steel is removed from the line in the form of oxide flakes. From an economic point of view, recycling these shells can be important. One of the ways to recover the shell is to regenerate it using a regenerating agent. Regenerators including (coal, coke, and graphite) are regenerated in a fixed bed at a certain temperature. The iron oxide shell is usually composed of magnetite Fe3O4 with a bluish-gray or steel color, with a thin hematite Fe2O3 outer shell that is invisible to the naked eye. Magnetite contains metal particles and sometimes black FeO residues inside, making the metal harder. Limestone is found in all steel products made by the hot rolling method unless they melt iron in shielded furnaces such as a galvanized sheet. At the high temperature of the hot rolling furnace, there is a layer of tungsten iron and FeO between the steel and the magnetite. 
At high temperature, 85% of the thickness of the oxide shell is composed of FeO, of which about 10% to 15% is Fe3O4 and about 0.5% to 2% is Fe2O3. During the hot rolling slow cooling (temperature below 1040 ° F) of the belt rotation, most of the FeO is converted to Fe 3 O 4, and the content of iron oxide 2 is highest after the metal has completely cooled.
black oxide steel sheet
black oxide steel products especially stainless steel sheet is one of the products in the market that it is resistant to oxidation. Galvanized Dandruff or "white rust" of the galvanized sheet is one of the common problems we encounter in galvanized sheets. Galvanized sheet flakes are white, bulky, powdery deposits that form rapidly on the surface of galvanized coatings in certain environments. White rust or dandruff can cause significant damage to the galvanized coating, which is detrimental to its appearance. The surface of the galvanized layer contains more zinc. The excellent corrosion resistance of the underlying steel is also due to the durability of this zinc element. However, zinc is a relatively reactive metal that reacts with a number of existing factors to produce lime on galvanized sheets. White rust is a white, calcareous coating called dandruff that can grow on layers of zinc-containing materials such as galvanized steel. White rust is formed when zinc reacts with hydrogen and oxygen. 
This reaction produces zinc hydroxide instead of iron oxide, which is the most common source of rust. Although white rust can form on any zinc-containing or galvanized material, it is a common problem with galvanized sheet metal. The durability of zinc depends on the slow formation of stable oxides on its surface as a result of this element being exposed to air. Galvanized steel makes the zinc surface very sensitive because it has been subjected to a certain degree of oxidation. black stainless steel sheet wholesaleblack steel sheet 904l stainless