Steel Products and Manufacturing (ผลิตภัณฑ์และกระบวนการผลิตเหล็ก)
A Comprehensive Guide to Steel Products and Their Applications

A Comprehensive Guide to Steel Products and Their Applications

A Comprehensive Guide to Steel Products and Their Applications : Steel is a versatile and essential material that plays a significant role in various industries worldwide. From construction and transportation to packaging and manufacturing, steel products are ubiquitous in our daily lives. Today, we will explore different types of steel products and their applications. Understanding these products will help you make informed decisions when choosing the right steel for your specific needs.

  1. Plate: Plates are flat steel sheets rolled on hot rolling mills and are widely used in sectors such as structural steels, shipbuilding, pipes, pressure vessels, boilers, heavy metal structures, and offshore structures. With a thickness ranging from 2 to 20 mm and a maximum width of 1860 mm, plates offer exceptional strength and durability.
  2. Hot Rolled Coil: Hot rolled coils are steel coils rolled on hot-strip mills, offering excellent formability and weldability. These coils find applications in various sectors, including transport, construction, shipbuilding, gas containers, pressure vessels, and energy pipelines. Typical thickness ranges from 2 to 7 mm, and typical width ranges from 600 to 2100 mm.
  3. Pickled Hot Rolled Coil: Pickled hot rolled coils are hot rolled steel that has undergone a pickling process to remove iron oxides from the surface. This process enhances the surface quality and prepares the steel for further processing. It shares similar applications with hot rolled coil and has the same typical thickness and width ranges.
  4. Cold Rolled Coil: Cold rolled coils are obtained by further reducing the thickness of a pickled hot rolled coil using a cold-reduction mill. This process improves the surface finish and dimensional accuracy. Cold rolled coils serve as the primary material for finished cold rolled coils and coated coils. Typical thickness ranges from 0.15 to 3 mm, and typical width ranges from 600 to 2100 mm.
  5. Finished Cold Rolled Coil: Finished cold rolled coils are cold rolled steel that has undergone heat treatment (annealing) and strain-hardening to achieve desired mechanical properties for forming, bending, and other applications. They are classified into various types based on their properties and offer excellent surface finish. Typical thickness ranges from 0.3 to 3 mm, and typical width ranges from 600 to 2100 mm.
  6. Hot-Dip Galvanised Steel: Hot-dip galvanised steel refers to cold rolled coil that is passed through a molten zinc bath to provide a thin layer of zinc coating for enhanced corrosion resistance. It offers excellent forming properties and is suitable for various applications, including domestic, building, automotive, lighting fixtures, and profiled sheets. Typical thickness ranges from 0.3 to 3 mm, and typical width ranges from 600 to 2100 mm.
  7. Electro-Galvanised Steel: Electro-galvanised steel is finished cold rolled steel that undergoes electroplating with a thin layer of zinc or zinc-nickel for corrosion resistance. It shares similar applications with hot-dip galvanised steel. The typical thickness and width ranges are the same as hot-dip galvanised steel.
  8. Rebar: Rebar, or steel reinforcing bar, is rolled on a hot rolling mill and primarily used to strengthen concrete in highway and building construction. It provides structural integrity and reinforcement. Rebar can also serve as the primary product for the wire rod process.
  9. Sections: Sections refer to steel sections rolled on a hot rolling mill, including I-beams, H-beams, wide-flange beams, and sheet piling. These sections find applications in construction, multi-story buildings, industrial buildings, bridge trusses, vertical highway supports, and riverbank reinforcement. They offer excellent load-bearing capacity and structural stability.
  10. UO Pipe: UO pipes are large-diameter pipes produced by forming plates into a U shape and then into an O shape using specialized presses. They are mainly used as line pipes for transporting petroleum and natural gas over long distances. UO pipes offer high strength and durability, making them suitable for demanding environments.
  11. Welded Pipe: Welded pipes are flat plate steel coils that are bent and welded into a tube shape. They are widely used for transporting fluids such as oil, gases, water, and chemicals. Welded pipes are known for their reliability, cost-effectiveness, and versatility in various industries.
  12. Seamless Tube: Seamless tubes are manufactured through the extrusion process, where a solid steel bar is pierced through the center using a die to form the desired shape and dimensions. These tubes have the advantage of no weld and are suitable for aggressive environments. They are commonly used in industries such as oil and gas, automotive, and construction.
  13. Wire Rod: Wire rods are rolled steel products with various cross-sections, often used for subsequent cold forming or drawing processes. They are wound into coils for transportation and find applications in various industries. Wire rods provide the raw material for manufacturing products such as wires, nails, bolts, and reinforcement for concrete structures.
  14. Tinplate: Tinplate refers to cold rolled coils electroplated with a thin layer of tin. It is primarily used in food cans and industrial packaging due to its excellent corrosion resistance and ability to preserve the integrity and quality of packaged goods. Typical thickness ranges from 0.13 to 0.49 mm, and typical width ranges from 600 to 1100 mm.
  15. Tin-Free (ECCS): Tin-free steel, also known as ECCS (Electrolytic Chromium-Coated Steel), is cold rolled coil electroplated with a thin layer of chrome. It serves similar purposes as tinplate in food cans and industrial packaging, providing protection against corrosion and ensuring the product’s safety and longevity.
  16. Organic Coated: Organic coated steel refers to a steel substrate coated with organic layers such as paint or laminated film. The substrate can be hot-dip galvanized coil, electrogalvanized coil, finished cold rolled coil, or tin-free steel. Organic coated steel finds applications in construction, general industry, domestic appliances, and packaging. The organic coating provides aesthetic appeal, corrosion resistance, and durability.
  17. Engineering Steel (Tool Steel): Engineering steel, also known as tool steel, is rolled on a hot rolling mill and further processed into finished products by manufacturers. It possesses exceptional mechanical properties, such as hardness, toughness, and wear resistance, making it ideal for the manufacture of tools, dies, components for engines, drives, equipment, transmissions, and more.

The world of steel products is vast and diverse, catering to numerous industries and applications. Each type of steel product mentioned above offers specific characteristics and advantages, ensuring optimal performance in various settings. By understanding these products and their applications, you can make informed decisions when choosing the right steel for your specific needs. Whether you are involved in construction, manufacturing, packaging, or any other industry, steel products will continue to be vital for their strength, durability, and versatility.




























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