Mild Steel Billets Price List in 2023
A billet is one of the medium-rolled steel products with a cross-sectional area of less than 230 square millimeters
The cross-section of this product is round or square with a width of less than 15 cm
Steel blocks are mainly used for the production of steel bars and wire rods
Billets are one of the types of ingots that produce different sizes and dimensions
The billet is used to produce some steel products such as beams and rods
Billet ingot is one of the most important steel products and comes in different grades
In fact, billets are products of steel mills and belong to the category of intermediate products
Billet Billet ingot or billet is one of the products made from iron ore, which itself is the raw material for making many other steel products
After iron ore is converted into steel, it must be produced in various forms, each with unique physical and chemical properties
Forms of different types of steel:
ingot
slab
bloom
billet
They are produced in factories and sent to the market
Each of these products is suitable for the manufacture of certain goods, so there are differences in their chemical composition and size and shape
Steel ingots are usually produced in relatively small widths, and products made with it are also smaller in cross-section and width, but longer products are produced with it due to the special chemical composition of the ingot
In terms of consumption and use, billet can be considered the most widespread type of bar
This semi-finished steel product is converted into other finished products in various processes
How to make billetsThere are two general methods of making this product, the first method is the blast furnace method and the second method is the electric arc method
In both methods, the excess material must be separated from the iron ore, and the pure iron is extracted, melted and poured into molds and delivered as ingots
The difference between these methods is the method of melting the iron, the other steps are almost the same
In the following, we will examine the two main methods of producing different types of ingots
Almost most of the ingots produced are produced by the above method, but in a few cases different types of ingots can be produced by extrusion or rolling
The types of ingots produced may vary slightly in properties such as twisting, stretching or bending, and each billet mill may have specific chemical analyzes for the product
Blast furnace production method
The biggest billet production is the blast furnace method
In this method, we first need iron ore
There is no doubt that this iron ore has impurities that must be separated from it
Therefore, in the first step, iron ore must be prepared so that the iron in it can be separated from other elements
To produce iron ore, pre-roasting and agglomeration steps must be carried out
In the next quarter, lime and coke are added and poured into the blast furnace, and the result of this process is cast iron or pig iron
This material is then poured into a converter and melted
Oxygen is then supplied to the molten iron so that its impurities combine with the oxygen and are separated from it as slag
In the next section, pure molten iron will be poured into a large container called a cauldron and sent to the forming section
Arc production methodIn the arc method, we need scrap iron raw material
The scrap iron is first put into the electric furnace, and then lime, coke, bentonite, and other slag materials are added, and some sponge iron also enters the furnace
These materials are melted in an electric furnace, during which operational steps such as oxygen blasting, homogenization, sampling, and analysis must be carried out
In the next step, this pure molten iron enters the pot and enters the casting unit
In this unit, molten material is poured into a mold, which is then cooled with water
After the ingot has cooled, the parts are cut to the desired size
Components of a ticketTickets typically have a circular, square or octagonal cross-section
The diameter or width of the ingot is usually less than 15 cm and its cross-sectional area is less than 23 cm²
Due to its special texture, billets are denser than other types of ingots and have relatively high flexibility
The material of the billet has a special type of grain which makes this material very flexible and also has the possibility of being very malleable
During the production stage of this product, care must be taken to ensure that all processes are carried out in accordance with standard details, otherwise, the strength and flexibility of the raw material will not be suitable for the market
In order to maintain the quality of the product, the ingot must be tested for temperature changes in the final step, so that the metal does not crack or crack during heating and cooling, as such a product would not be suitable for the production of downstream products
In the chemical composition of this product, different elements are responsible for different mechanical, physical, and chemical properties, including:
NiobiumIncrease wear resistance
CobaltIncrease the heat resistance of metals
TungstenIncrease wear resistance
SiliconIncrease strength and toughness
VanadiumA finer microstructure of the steel
ManganeseImprove the ability to work deeply and hard
NickelIncrease toughness and wear resistance
ChromeIncrease toughness and wear resistance
Phosphorus, lead, sulfur, calciumImprove processing capacity
MolybdenumImprove heat resistance and improve hardenability
There are a few types of billets that are used directly, and in most cases, billets must be processed and new products made from them
steel production line in major companies
Major companies work and have separated steel production lines and Our company’s mission is to play a central role in the national industrial, economic and social development and to improve the technical level of the iron and steel industry
produces heavy and liquid transport pipes, the packaging industry, the household appliance industry, and the pipe and profile industry
Steel is one of the most used metals in the modern world
The metal is cheap, strong, and versatile
Steel is the world’s second most mass-produced raw material after cement, with an annual production of around 750 million tons
Steel is fully recyclable and requires relatively low energy consumption to produce it
Iron is the fourth most abundant element on Earth and makes up more than 5% of the Earth’s crust
Human iron production began around 2000 BC
in the southwest or south-central Asia
This period can be called the beginning of the Iron Age, which led to the widespread use of iron instead of bronze for the manufacture of tools and weapons
During this time, blacksmiths transformed impure iron into mature iron by heating and hammering
The resulting iron is hard but malleable
During the Middle Ages, a new type of iron was developed that was produced at higher temperatures
This new type of iron, called cast iron, is harder but more brittle than wrought iron
With the advent and mass production of steel in 1870, steel replaced iron
steel composition
Steel is an alloy of iron and carbon and may contain small amounts of silicon, phosphorus, sulfur and oxygen
Steel has a carbon content between 0
08% and 1
5%, making it harder than wrought iron but not as brittle as cast iron
Steel has a unique balance between hardness, flexibility, and tensile strength
Steel is more durable than iron and has a higher resistance to shock and stress than brittle cast iron
The following examples are the main uses of steel:
railways
Oil and gas pipelines
skyscraper
elevator
subway
bridge
build cars and ships
Cutlery and fork
Blades and surgical instruments
To make steel, iron ore is heated in special furnaces to remove impurities, then carbon is added
Today, steel is made in one of two ways: blast furnace EAF electric arc furnace The first method mainly uses raw materials (such as iron ore, limestone, coking coal) to produce steel along with some scrap steel; while the second method mainly uses scrap to make steel
blast furnace The blast furnace was invented in the mid-1850s by an Englishman named Henry Bessemer
In this method, steel production is done by blowing air through molten iron and oxidizing and separating impurities
Today’s blast furnaces are long steel drums lined with refractory bricks
Iron ore, coking coal, and limestone enter the hearth from the top and gradually move downwards; the lower they are, the hotter they are
In the upper half of the furnace, gases from burning coking coal release the oxygen in the iron ore
In the lower half of the furnace, the limestone begins to react with impurities in the iron ore and coking coal, creating a mixture of impurities called “slag”
At the bottom of the furnace, the temperature reached over 3,000 degrees Fahrenheit
The slag, which contains impurities, floats on top of the molten steel and is discharged through slits in the furnace
The molten steel is discharged through a hole in the furnace core
Electric arc furnace This method is mainly used for the production of special steels alloyed with other metals
These furnaces are of course also used for the production of ordinary and unalloyed steel
Unlike blast furnaces, electric arc furnaces do not use molten iron
Instead, they use scrap steel extracted from recycled products
Scrap is transferred to the arc furnace with overhead cranes
When the oven is full, the door closes and covers the top of the oven
Electrodes are embedded in the door into the oven
These electrodes carry a strong current that generates heat and melts the scrap
By melting scrap steel, other metals called ferroalloys are added to the steel to create the desired chemical composition of the steel
To refine the steel, oxygen is blown into the furnace
Lime and fluorite, a mineral compound, are also added to combine with impurities to form slag
Raw material storage and collection unitThe main task of the stacking and harvesting unit is to homogenize and mix the material, create suitable storage space, and make the pelletizing and
regeneration unit independent of each other according to the design of 4
5 million tons of raw materials, including iron ore fines and pelletizing per year has now reached 6
5 million tons of unloading capacity
In addition, up to 2 million tons of iron ore powder and pellets can be stored in the unit
The majority of iron ore veneers consumed are supplied by wagons in domestic mines; incoming wagons are weighed by rail scales and then enter the return wagon area for unloading
The act of moving the car towards the guide car and adjusting its position inside the guide car can be performed by a car indexer or a locomotive
The trucks are unloaded from the tipper one by one and transported to the storage area (parking lot) through the vibrating feeder and conveyor belt
The empty weight is 30 tons, and the current load in each vehicle is 90 tons, which can be increased to 120 tons
Three parks with a length of 750 meters and a width of 38 meters are specially used for the accumulation and mixing of iron ore powder, and three parks with a length of 950 meters and a width of 47 meters are specially used for the accumulation and mixing of iron ore powder
particles
The stacking task is performed by three accumulators and the harvesting task is performed by three combines
The unloading capacity of the stacker and associated conveyors is 2800 t/h, and the harvesting capacity of the harvester and associated conveyors is 1500 t/h of fine iron ore and 1000 t/h pellets
Pelletizing unitIn the pelletizing unit, 95% of the coarse iron ore particle size is below 1mm after entering the pelletizing machine, and 75%~80% is below 45 microns
Next, the milled iron ore is mixed with 80% to 85% fine iron ore below 45 microns, bentonite (as glue), and moisture, which is prepared and fed to green pelletizing pans
In pellet mills, the iron ore mixture is converted into green pellets with a size of 5 to 25 mm
After the green pellets are ground by a roller mill, the pellets with a size of 8-16 mm enter the baking oven
In the kiln, the green pellets go through stages of drying, preheating, baking, and cooling to a strength suitable for use in the direct regeneration process and then leave the kiln
The produced oxide particles are then sent to a direct regeneration unit for consumption or to an accumulation and harvesting unit for accumulation
