Steel Billet
Production of various types of steel billets in different sizes, with guaranteed quality, competitive pricing, and fast nationwide delivery.
What is
What is a steel billet?
A steel slab is an intermediate product of hot rolling with an approximately square or rectangular cross-section, usually larger in size than a billet. Slabs are produced through continuous casting and serve as raw material for manufacturing heavier sections such as I-beams, channels, rails, and more. Their high strength, uniform structure, and good formability make slabs a fundamental material in medium and heavy steel industries.
A steel billet is another semi-finished product in the steel industry, typically with a square cross-section and smaller dimensions than a slab. Due to its suitable size and high structural quality, billets are the primary raw material for producing long products such as rebar, wire rod, light angles, and more. The controlled chemical composition and excellent rolling capability make billets one of the most widely used raw materials in light and medium rolling mills.
Comparison
Differences between types of steel slabs
In the steel production chain, blooms, billets, and slabs are all semi-finished products, but they differ in size, shape, and application. Billets typically have a smaller square cross-section and are used to produce long products such as rebar, wire rod, and light angles. Blooms are larger than billets, with a square or rectangular cross-section, and are mainly used to produce heavier sections like I-beams, channels, and rails. In contrast, slabs have a wide rectangular cross-section and serve as the raw material for producing sheets, coils, thick plates, and flat products. These differences in shape and size make each suitable for specific rolling lines and applications.
|
Row |
Features |
Ingot |
Billet |
Bloom |
Slab |
|---|---|---|---|---|---|
|
1 |
Appearance |
Trapezoidal |
Square |
Square (larger than billet) |
Rectangular |
|
2 |
Scientific Name |
Ingot |
Billet |
Bloom |
Slab |
|
3 |
Production Standard |
Hot rolling or continuous casting |
Directly from CCM to rolling |
Blast furnace method |
By continuous casting and pouring molten material into molds |
|
4 |
Size and Dimensions |
Maximum length: 2 meters |
Cross-section: less than 15 centimeters |
Cross-section: more than 15 centimeters |
Thickness: 230 mm |
|
5 |
Applications |
Production of billets, blooms, and slabs |
Rebar and wire rod |
Production of I-beams and angles |
Production of flat products |
|
6 |
Mechanical Properties |
Flexibility, tensile strength, bending, and torsion |
SP3 – Flexible |
Has a uniform and dense internal structure |
Desirable mechanical properties due to the presence of chromium |
Production
How is a billet manufactured?
The production of steel slabs and billets continues from the initial melting of raw materials to the final shaping in specialized molds. This process begins with the preparation of raw materials, followed by the production and refining of molten steel in furnaces, and finally casting and cooling it into the shape of slabs or billets.
1
Procurement and preparation of raw materials
First, raw materials, including scrap iron, direct reduced iron (DRI), ferroalloys, and additives, are prepared for entry into the melting line.
Screening and sorting of scrap
Adjusting the chemical composition according to the desired quality
Transporting raw materials to the furnace
2
Melting in furnaces
The raw materials are melted into molten steel in one of the industrial furnaces:
Induction Furnace (IF)
Electric Arc Furnace (EAF)
At this stage, the temperature reaches approximately 1600°C.
3
Refining and adjusting the quality of molten steel
The molten steel is refined to meet quality standards:
Removal of impurities (sulfur, phosphorus)
Adjustment of chemical composition by adding ferroalloys
Ladle Refining Furnace (LRF) operations for homogenization
4
Continuous Casting
The molten steel is poured from the tundish into a copper mold and forms a semi-solid shape.
Flowing the molten steel through nozzles into the mold
Initial cooling with water
Primary formation of slabs or billets
Pulling and cutting to standard lengths
5
Cooling and transfer to the Cooling bed
After exiting the mold, the product must be fully cooled to be ready for handling and packaging.
Placement on the cooling bed
Complete temperature reduction
Surface quality inspection
6
Quality Control and Packaging
Finally, the slab or billet is inspected and classified in terms of dimensions, structure, and quality.
Dimensional testing
Chemical composition analysis
Surface and internal crack inspection
Packaging and preparation for shipment
Applications
Where are steel billets used?
Steel billets are one of the most important intermediate products in the steel industry, serving as the primary raw material for producing a wide range of metal products. Billets are used in hot rolling mills to manufacture various rebar, angles, channels, light I-beams, wire rods, construction profiles, and industrial components. Due to their adequate strength, machinability, and high rolling capability, billets play a central role in meeting the needs of construction, metal structures, automotive parts, oil and gas industries, industrial equipment, and infrastructure projects, effectively forming the foundation for the production of many steel products.
FAQ
Frequently Asked Questions
What is a steel billet and how does it differ from an ingot?
A billet is a semi-finished steel product with a smaller cross-section and longer length, mainly used for producing rolled products such as rebar and wire rod, whereas an ingot typically has a larger cross-section and a more basic initial shape.
In what sizes and standards are billets produced?
Billets are typically produced in square cross-sections with dimensions of 100×100, 120×120, 130×130, and 150×150 mm, in accordance with BS, ASTM, ISIRI, and GOST standards.
What are the main applications of steel billets?
Billet is the raw material for producing various rebar, angles, channels, light I-beams, industrial wire rods, and construction profiles.
What is the difference between SP3 and SP5 billets?
3SP billets are more flexible and suitable for components that require formability, while 5SP billets are harder and stronger, used for producing structural and industrial parts with high strength.
What factors affect the price of steel billets?
The main factors include the price of raw materials, energy costs, transportation expenses, production standard type, melting quality, global steel market conditions, and currency fluctuations.