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The most common type of rebar is carbon steel, typically consisting of hot-rolled round bars with deformation patterns embossed into its surface. Steel and concrete have similar coefficients of thermal expansion,so a concrete structural member reinforced with steel will experience minimal differential stress as the temperature changes.
Advantages of China's Steel Rebar Exports:
China is the world's largest producer and exporter of steel rebar, with its exports accounting for nearly one third of the world's total steel rebar exports.
The main advantage of China's steel rebar exports lies in its huge steel production capacity and low production costs, while the domestic construction industry continues to develop, the demand for steel rebar is also increasing.
The purpose of steel reinforcement:
Strengthening concrete structures: As the skeleton material of concrete structures, steel bars can greatly improve the strength and load-bearing capacity of concrete, making buildings more sturdy and stable. At the same time, strengthening concrete helps to ensure the safety performance of the building and extend its service life.
Construction of bridges, highways, tunnels, and other projects: In these large-scale projects, steel bars play a crucial role as the skeleton material of concrete structural components. Steel bars are used to reinforce structures such as piers, walls, load-bearing beams, columns, and foundations, improving the stability and safety of the project.
Increase mechanical strength: Steel bars can enhance the mechanical strength of the structure, improve its wind resistance, seismic resistance, compressive strength, etc., making it more sturdy and stable.
Extending service life: The use of steel bars can extend the service life of buildings, bridges, and other structures, reducing maintenance, replacement, and other costs.
| Rebar:Delivery standards and dimensions | ||
| Standard | Grade | Dimension |
| GB/T 1499.2 | HRB400E | 6MM-50MM |
| HRB500E | ||
| ASTM A615M | GR.40 | |
| GR.60 | ||
| GR.80 | ||
| BS4449 | B500A | |
| B500B | ||
| B500C | ||
| Theoretical weight table | ||
| Diameter (mm) | Cross-sectional area (mm²) | Weight* (kg/m) |
| 6 | 28.27 | 0.222 |
| 8 | 50.27 | 0.395 |
| 10 | 78.54 | 0.617 |
| 12 | 113.1 | 0.888 |
| 14 | 153.9 | 1.21 |
| 16 | 201.1 | 1.58 |
| 18 | 254.5 | 2.00 |
| 20 | 314.2 | 2.47 |
| 22 | 390.1 | 2.98 |
| 25 | 490.9 | 3.85 |
| 28 | 615.8 | 4.83 |
| 32 | 804.2 | 6.31 |
| 36 | 1018 | 7.99 |
| 40 | 1257 | 9.87 |
| 50 | 1964 | 15.42 |
| *Theoretical weight based on a density of 7.85g/cm³ | ||
Production process of hot rolled steel bars:
Step 1: Preparation of the square billet. The manufacture of rebar begins with a block of square billets of uniform specifications. These billets are subjected to a sophisticated production process that ensures their quality and dimensional consistency.
Step 2: The billet enters the heating furnace along with the steel columns. The addition of steel columns helps to balance the temperature distribution in the furnace, thus improving the heat uniformity of square billets and providing better plasticity conditions for the subsequent rolling process.
Step 3: Precision rolling in the hot rolling shop. The heated square billet enters the hot rolling shop, and the billet is gradually thinned in the rolling mill through multiple processes of roughing and middle rolling. Through the finishing rolling process, the dimensional accuracy and surface quality of the steel bars are further improved.
Step 4: Extrusion and thread formation. The temperature of the rebar is reduced by means of a water-cooling device. During this process, the bars are extruded through grooves in the rolls and a unique thread pattern is formed on the rolls.
Step 5: Crystal remoulding in the cold bed. The cooled rebar enters the cold bed. In the cold bed, the steel bars are slowly cooled and transferred to the next process one by one. This process rearranges the crystal structure of the steel, giving the bar superior mechanical properties and toughness.
Step 6: Cold shear for precise cutting and counting. The cooled reinforcement bars are accurately positioned and cut through a high-precision, high-efficiency cold shear. The cold shear ensures that the cut-off size of the bars meets the specification requirements and that the number of bars in each group is consistent.
Step 7: Neatly bundled for perfect delivery. After cutting and counting, the finished rebar enters the bundling machine through the guide plate.
Shandong Chicago Materials Ltd. is a leading exporter of steel products. We offer a wide range of products including aluminum, steel plates, steel pipes, steel sheet piles and construction steel such as rebar, beams, rounds and flats. We mainly serve markets in Southeast Asia, the Middle East, Russia, North America and Central Asia.
We have warehouses and processing plants in several cities in China to ensure efficient and timely delivery of products to our valued customers. Our dedicated logistics department handles all aspects of transportation, ensuring the smooth operation of the entire supply chain.
We take pride in the fact that our products have comprehensive certifications that guarantee quality and reliability. Our commitment to providing quality materials at competitive prices sets us apart in the industry.
At Shandong Chicago Materials, we strive to exceed the expectations of our customers by providing superior products and quality services. We are confident in our ability to fulfill the various needs of our customers and look forward to building long-term partnerships with them.
Q:What are the main products our company offers?
A:Our company specializes in steel export business, including aluminum, steel plates, steel pipes, steel sheet piles, and construction steel, such as rebar, steel beams, round steel, flat steel, and so on.
Q:What is the minimum order quantity for steel products?
A:Minimum order quantities for steel products may vary depending on the specific product. Please contact our sales team for more information on the minimum order quantity of the product required.
Q:Are customized steel products or sizes available?
A:Yes, we can provide customized steel products or sizes according to your specific requirements. Detailed specifications can be provided to our sales team.
Q:What are the shipping options for international orders?
A:We offer a variety of shipping options for international orders, including ocean and air freight. The choice of shipping method will depend on factors such as order quantity, destination and urgency. Our sales team will guide you in selecting the most appropriate shipping option.
Q:How long does it take to deliver steel products?
A:Delivery time is usually 5 working days for less than 500 tons and less than 10 working days for more than 500 tons.
Customized products are estimated based on order quantity, processing difficulty, etc.
Q:Do you offer quality certification for steel products?
A:Yes, we offer quality certifications for steel products, including steel mill test certificates and related product certifications. Upon request, we can provide these certifications to ensure product quality and compliance.
