Bunyan Solb has the complete production line from scrap steel recycling compressing and shredding line to the intermediate frequency furnace, to continuous casting and rolling production line. Depending on the PSX-80104 (3000 house power ) large-scale shredding system, we can easily control the chemical composition even at the beginning of the process, and because of the continuous casting and rolling production line we have the highest efficiency and lowest energy consumption compared with all other manufacturers in KSA, so we have inherent quality advantage and price advantage.

The common production process for rebar:

Ⅰ. Raw Material Preparation:

The preparation of raw materials in steel fabrication is a fundamental step that sets the stage for producing high-quality steel rebars. The process involves several key stages to transform raw inputs into materials ready for further processing.

Ⅱ Heating

The heating process in fabricating steel rebars is a crucial step that prepares the steel billets for shaping into rebars. Once the billets are heated to the desired temperature, they are transferred to the rolling mills for further processing.

The goal of the heating process is to achieve a consistent and suitable temperature for the subsequent rolling and shaping of the steel billets into rebars. Proper heating is essential for producing high-quality rebars that meet the required mechanical and structural standards.

Ⅲ.  Rolling

 The heated billets are then passed through a series of rolling mills. In the rolling process, the billets are shaped into long, thin bars. The rolling mills progressively reduce the diameter of the billets to the desired size of the rebars, typically ranging from 6 mm to 40 mm in diameter. Rebars are rolled with specific surface patterns (e.g., deformations or ridges) to improve bonding with concrete. The patterns vary based on regional standards but are designed to enhance mechanical interlock.

Ⅳ Cutting and Bending

Cutting and bending are critical processes in the fabrication of steel rebars, ensuring that they meet the precise specifications required for various construction applications.

Ⅴ Post-Processing

Once cut and bent, rebars are often bundled and labeled according to their size and shape for easy handling and transportation to the construction site. Then ensure that all cut and bent rebars are documented with their specifications, including lengths, shapes, and any special instructions. Handle cut and bent rebars carefully to avoid damage.

By following these processes, manufacturers ensure that steel rebars are accurately cut and bent to meet the specific requirements of construction projects, contributing to the overall strength and stability of the concrete structures.

Ⅵ.  Inspection and Testing

Inspection and testing are crucial in the fabrication of steel products to ensure they meet the required standards and are suitable for use in construction. The inspection including such as Visual Inspection, Surface Quality, Dimensional Checks, Deformations, Mechanical Testing (Tensile Test, Yield Strength, Elongation Test), Chemical Analysis, Composition Check, Consistency, Hardness Testing, Non-Destructive Testing (NDT), Ultrasonic Testing, Magnetic Particle Inspection, Dye Penetrant Testing, Dimensional and Weight Checks, Diameter and Length test.

VII Documentation and Certification

Usually including Mill Test Reports (MTRs) and compliance certificates. These reports include information on chemical composition, mechanical properties, and any certifications. And ensure that the steel products meet the relevant industry standards and codes, such as ASTM, ISO, or other local standards. Certification of compliance ensures that the bars are suitable for their intended use. 

VIII Final Review and Approval

Ensure that all inspection and testing results meet the project’s acceptance criteria and industry standards. Final approval by quality control personnel or an independent inspector confirms that the steel bars are ready for use in construction.

By conducting these inspections and tests, manufacturers ensure that steel bars are produced to the highest quality standards, providing reliability and safety in construction applications. 

IX Coating (Optional)

   In some cases, rebars are coated with a protective layer, such as epoxy, to enhance their corrosion resistance. This is particularly important for structures exposed to harsh environmental conditions.

XPackaging and Delivery 

   Finished rebars are bundled and packaged for delivery to construction sites. Proper bundling helps prevent damage and makes handling easier. The packaged rebars are then transported to construction sites, where they will be used in concrete reinforcement.

This process ensures that steel rebars are manufactured to precise specifications and are capable of providing the necessary structural support in various construction applications.