A sheet with a thickness and size of 8 mm is widely used in the construction industry.
8mm stainless steel rod
These sheets have their own usage in construction. However, the weight of the 8 mm black sheet and the width and length of the board should be considered before purchase. All of these factors, especially weight, can affect the final price of the sheet, and even the final price of the project. Iron is a widely used metal in the world due to its special properties such as electrical resistance and strength. Iron is combined with other metals to become different types of sheets, black sheet is one of them. Blackboard is used as a raw material for the manufacture of other steel products such as pipes and profiles and kitchenware. Before buying or using black paper, it is best to know what is the black sheet. How did it come about? What are the advantages and disadvantages? What is its type? What is black paper? Boards are produced in a hot rolling process in a very hot furnace environment and at temperatures above 930 degrees Celsius. Interestingly, the board is also called a hot-rolled plate because its production method is by hot rolling. The plate is made in different thicknesses and is higher than the cold plate. In addition, the thickness factor is very effective in determining the price of a board. The thicker the sheet, the higher the price. Since the board is produced at high temperatures, its outer surface becomes dull and black during the production process, so it is called a board. The sheet comes in two forms: roll and sheet. Black sheet production stage Like all steel profiles, boards are produced in a hierarchical structure, which we describe in this section:
- In the first step, the plate is placed in an oven preheated to 1300 degrees Celsius to repair structural defects.
- Heat is very important at this stage.
- The plate is then cooled in a process and the thick oxide layer that forms on the plate in the preheating furnace is removed.
- Then press the plate to achieve the desired thickness and width.
- After the compaction operation is completed, the thickness of the plate is reduced by pressing rollers.
- At this stage the thinned sheet enters the roll box and wraps around itself.
- In addition to increasing production speed, the spool box also flattens the sheets.
- Then open the coil using a decapper to separate the end and end of it.
- Deoxygenation also occurs during this part of the production process.
- At this stage, the final rolling of the sheet is carried out, during which the sheet passes through the rolling stand at a speed of 10 to 20 meters per revolution.
- In addition, the mechanical properties of this part of the plate have also been improved.
- Cool the sheet again and then twist and roll the sheet.
- Finally, the rolled paper is weighed before it is sent to the market.
8mm stainless steel tube
Blackboard Specifications The board has its own unique characteristics in appearance. As we mentioned in the previous section, the appearance of this paper is matte, unlike oil paper. Its surface is not completely smooth, it is a little rough. Other specifications of the board are as follows: thickness In general, boards are produced in thicknesses from 2 mm to 100 mm, depending on the production plant. Remember that the thickness of the plate is directly related to its final price. The higher the thickness, the higher the price. You can see a price list of boards based on production facilities and different thicknesses, including 2 mil board and 1 mil board, on the board price page. aspect Boards are normally produced in 1, 1. 25 and 2 meter sizes. This sheet is of course also available in customized sizes, cut to the desired size according to the buyer's order. The size of a board, like its thickness, is effective in determining the price. Types of black paper There are different types of boards, classified according to their appearance, use and the steel used in them. Appearance-based board types: Rolling board, (reel or reel) The specifications of these boards include their thickness, width and length. Rolled sheets are available in thicknesses from 1. 5 to 15 mm and in production widths of 1000, 1250, 1500 and 2000. It should be noted that since these sheets are in roll form, there is no limit to their length. black sheets or fabric Sheets of black fabric are usually ordered from buyers and cut to size. But these sheets are also available in finished forms on the market, with thicknesses over 3 mm, in standard sizes such as 1 x 2 m, 25 x 2. 5 m, 2 x 12 m, 2 x 6 m, 1 x 6 m, and 6 x 1 m. They are 1. 5 meters. Cut boards can be more expensive due to their customization compared to roll or roll. Types of boards based on steel composition: ordinary black sheet Regular boards have st37 characters. The hardness of the plate depends on its carbon content. Due to the lower carbon content of st37 black flakes, the resistance is lower. The use of this sheet can be mentioned in the construction industry. industrial sheet. 
8mm stainless steel chain
ST52 industrial board has a higher carbon content. Therefore, the plate exhibits greater strength under the necessary conditions. Due to its high hardness, the st52 plate is widely used in heavy industries that must withstand greater pressure. In addition to carbon, there are of course other elements in boards for st37 and st52 standards, including: Phosphorus, Sulphur, Silicon, and Manganese. Before discussing the specifications and usage of 0. 8mm stainless steel sheet and their functions in construction, it is good to know about the alloys used in these sheets. Board type based on the alloy used: Boards can also be classified by standards, each with its own characteristics and uses. Below we will explain one by one: Board st37: The board manufactured according to this standard is mainly suitable for construction. It is also used to construct sections such as corners, studs, profiles, rods, and beams. One of the features of the st37 board is its solderability. ST52 board: ST52 board is mostly used in industry. The sheets are usually produced in the sizes 1. 5 x 6 m and 2 x 6 m. The combination of chemical elements such as silicon, manganese, phosphorus, and sulfur in this sheet makes it elastic, weldable, and highly resistant. Blackboard a516: The a516 board has a high carbon content and is harder than the first two boards. Therefore, it is used in the construction of the oil and gas industry, petrochemical industry, and pressure tanks. This article identifies four levels of quality which are: a516 g 55 a516 g 60 a516 g 65 a516 g 70 A283 sheet: A283 sheet is a low-carbon black sheet under ASTM standard with relatively low resistance. As this plate is produced in a hot rolling process using high-pressure rollers, it has good weldability and formability. The alloy elements that make up the A283 plate must be melted and refined in an open-air furnace, oxygen furnace, or electric furnace. Heat treatment and analysis of such plates must be carried out in such a way that the steel obtained are compatible with the required chemical composition of the elements carbon, manganese, phosphorus, sulfur, silicon, and copper. In addition, tensile tests were performed on steel samples of the plate to determine that the samples met the required values for tensile strength, yield strength, and elongation. This steel is manufactured in various types such as plates, coils, tubes, and structural products such as sections and beams. A283 sheets are available in four different grades, each with a separate product name. The four grades are A, B, C, and D grades. The main reason these grades are named differently is the amount of carbon they use. Different qualities of this sheet are usually sold in thicknesses from 6 to 150 mm. These sheets are available in widths from 1. In addition, there are A283 sheets on the market in lengths from 6 to 20 mm. a36 plate: a36 alloy is the closest alloy to a283. This plate has high toughness due to its special compounds, namely carbon, silicon, manganese, and phosphorus, and has good resistance to salt water. 
8mm stainless steel bolts
A36 sheets are also widely used for repairing ships and metal buoys. ck45 sheet: This sheet is used as a raw material for the manufacture of steel tools. ck45 sheet has a low carbon content, which is why it is resistant to corrosion. The main application of this sheet is in the production of industrial crankshafts, rotary shafts, and pump shafts. Advantages of whiteboards. According to its characteristics, blackboards have advantages that buyers are interested in. The advantages of blackboards can be mentioned in the following situations:
- High tensile strength
- Improved mechanical properties
- Resilience
- High toughness (hardness)
- Hammering
- Short production time
The galvanized plate is coated with zinc metal on the iron plate to increase its anti-corrosion and anti-rust ability. The reason for corrosion resistance is that it is composed of two elements, iron, and zinc. The coating of the galvanized sheet is the coating that determines the zinc content. The galvanized sheet is divided into two types: sheet and roll, production and supply of 1000 and 1250 mm wide galvanized sheet, the thickness of 0. 2 to 6 mm, the coating thickness of 100, 120, 180, 220, and 275 grams per cubic meters, depending on the type of application, the coils are heavily galvanized between 5 and 7 tons depending on their thickness. The standard dimensions of the galvanized fabric sheet are 1000 x 2000 and 1250 x 25000 mm. Types of galvanized sheet:
- Galvanized iron plate
- Galvanized steel
- Color galvanized plate
galvanized iron: Galvanized iron plate is made of iron plate, and the surface is covered with a layer of zinc to increase its rust resistance and impact resistance. Galvanized iron plate thickness of 0. 5 mm, production and supply of 1 and 1. 25 in any length, trapezoidal, ceramic, hatch, shutter and other designs. Galvanized steel: Galvanized steel is the same as galvanized iron, the difference is that it is made of steel, which is more resistant to corrosion than iron. Galvanized steel sheet is 0. 5mm thick, 1mm wide and 1. 25mm long, with optional colors. Various colors like blue, red, green, yellow, orange, brown, etc. with hatching, shutters, ceramic, trapezoid and other designs. Color galvanized sheet: Color galvanized sheet (roof galvanized sheet) is the same galvanized sheet covered with an electrostatic paint layer, which is used in the construction industry to cover roofs, gables, etc. Production method of galvanized sheet:
- First, the oil sheets produced by the cold rolling process (the base plate for making galvanized sheets) are connected to each other by welding to make a continuous strip.
- Before entering the production stage, the plate is degreased by pickling process using alkaline substances, then brushed with hot water and then dried with hot air.
- The clean spiral, protected by the atmosphere in the annealing stage, according to its end use, goes through three processes of preheating, heating and constant temperature, and then passes through the cooling system to reach the temperature required for the next stage.
- After the annealing treatment, the coil goes into the melting pool and a protective layer is applied on both sides.
- Then enter the air jet stage to adjust the thickness of the zinc metal.
- At this stage, exposed to cold air, the temperature of the sheet will drop and its surface will dry out.
- The coating of the plates is controlled by thickness measuring devices, which are modified for the rolling stage of the shell and wire.
- After the chromate phase, sprinkle a thin layer of the cream solution on the surface of the sheet to prevent scales.
- Then enter the inspection stage, after the quality control of electrostatic equipment, a layer of oil is sprayed on the metal surface to play a protective role, and then it is packed and ready for shipment.
