DIN STANDARD HIGH QUALITY HOT ROLLED REBAR

DIN STANDARD HIGH QUALITY HOT ROLLED REBAR System 1

DIN STANDARD HIGH QUALITY HOT ROLLED REBAR

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 100000 m.t./month

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Product Description:

Appearance: Black

Technique: Slitting hot rolled steel coil

Grade: Q235, Q195,A36 SS400 S235jr.St37-2

Standard: AISI,GB,DIN,ASTM,EN,JIS

Length: 6m, 9m, 12m or as your requirement.

Width: 10mm-1010mm

Thickness: 1.5mm-20mm

Business type: big manufacture

Place of origin: Tianjin China (Mainland)

Packaging Details: In bundles for exporting and sea worthy

Delivery Detail: Within 15-35 days after receiving L/C or deposite T/T

DIN STANDARD HIGH QUALITY HOT ROLLED REBAR

General specification as below:

Flat Bar Specification
Width (mm)	Thickness (mm)	Length (m)	Theoretical Weight (kg/m)
20	2.0	6/9/12	0.31
20	2.5	6/9/12	0.39
20	2.75	6/9/12	0.43
25	2.5	6/9/12	0.49
25	3.75	6/9/12	0.74
30	2.5	6/9/12	0.59
30	3.5	6/9/12	0.82
30	9.75	6/9/12	2.30
40	3.5	6/9/12	1.10
40	4.75	6/9/12	1.50
40	11.75	6/9/12	3.69
50	2.75	6/9/12	1.08
50	4.5	6/9/12	1.77
50	9.75	6/9/12	3.83
60	5.5	6/9/12	2.60
60	7.5	6/9/12	3.53
60	11.5	6/9/12	5.42
80	5.5	6/9/12	3.45
80	7.5	6/9/12	4.71
80	11.75	6/9/12	7.38
100	3.25	6/9/12	2.55
100	4.75	6/9/12	3.73
100	7.5	6/9/12	5.89
120	9.75	6/9/12	9.18
120	11.75	6/9/12	11.07
150	9.75	6/9/12	11.48
150	11.5	6/9/12	13.54
150	13.5	6/9/12	15.90
160	11.75	6/9/12	14.76
200	9.5	6/9/12	14.92
250	5.75	6/9/12	11.28
340	7.75	6/9/12	20.68

Products Advantages

1. high quality competitive price and Accurate in size

2. high dimensional accuracy

3. Guaranteed raw material

4.high utilization rate of material

5.convenient in construction, saving much time and labor

6. high mechanical strength

Application: Widely used for construction, Ship building, Machinery manufacturing ,steel structure,agriculture and steel grating.

Q:How do steel rebars help in distributing load in a structure?: Playing a crucial role in the distribution of load within a structure, steel rebars, also known as reinforcement bars, are of utmost importance. Their primary purpose lies in reinforcing concrete structures, elevating their strength and durability. Strategically positioned within the concrete, rebars effectively counteract any tensile forces that the structure may face. Although concrete possesses strength in compression, it lacks the same strength in tension. Under the application of a load, such as in a building or a bridge, tensile forces arise, causing concrete to crack and eventually fail. By incorporating steel rebars into the concrete, these tensile forces are efficiently disseminated and transferred to the rebars, preventing excessive deflection or collapse of the structure. The inclusion of steel rebars within the concrete creates a composite material, amalgamating the compressive strength of concrete with the superior tensile strength of steel. Consequently, the structure becomes capable of withstanding a wide range of loads, including dead loads (the weight of the structure itself), live loads (such as occupants or furniture), and environmental loads (such as wind or earthquakes). Moreover, rebars serve the purpose of controlling and minimizing the propagation of cracks within the concrete. When a crack forms under load, rebars act as a barrier, impeding the crack's further spread and safeguarding the structure's integrity. This hinders the development of larger cracks that could potentially lead to structural failure. Furthermore, steel rebars provide stability and reinforcement at critical points within the structure, such as corners, joints, and areas prone to high stress. By reinforcing these vulnerable areas, rebars ensure that the load is evenly distributed throughout the structure, reducing the risk of localized failures. In conclusion, steel rebars are indispensable in distributing load within a structure by absorbing tensile forces, strengthening concrete, preventing crack propagation, and reinforcing critical locations. They significantly contribute to the overall structural integrity and safety, solidifying their vital role in construction projects.

Q:Can steel rebars be used in underground construction or tunnels?: Yes, steel rebars can be used in underground construction or tunnels. Steel rebars provide crucial reinforcement to concrete structures, enhancing their strength and durability. In underground construction or tunnel projects, where structural integrity is of utmost importance due to the surrounding soil and potential pressure, steel rebars are commonly used to reinforce concrete walls, floors, and ceilings, ensuring the safety and stability of the underground structures.

Q:What are the guidelines for the proper spacing of steel rebars in slabs?: The guidelines for the proper spacing of steel rebars in slabs are crucial to ensure the structural integrity and strength of the concrete slab. Here are the general guidelines to follow: 1. Rebar Diameter: The diameter of the steel rebar should be determined based on the load and design requirements. Common rebars sizes range from 6mm to 32mm. 2. Spacing: The spacing between rebars is determined by the thickness of the slab and the design specifications. As a general rule, the spacing should not exceed three times the slab thickness. For example, if the slab thickness is 150mm, the maximum spacing between rebars should be 450mm. 3. Edge Distance: The distance between the rebar and the edge of the slab is also crucial. The minimum edge distance should be at least 50mm to prevent cracking and ensure proper load distribution. 4. Clear Cover: The clear cover refers to the distance between the rebar and the surface of the slab. It is essential to provide sufficient clear cover to protect the rebar from corrosion. The clear cover requirements vary depending on the environmental conditions, but commonly range from 20mm to 40mm. 5. Reinforcement Ratio: The reinforcement ratio is the amount of steel reinforcement used per unit area of the slab. This ratio is determined by the load requirements and the design specifications. Typically, the reinforcement ratio ranges from 0.5% to 2%. 6. Lap Splicing: In cases where the length of the rebar is insufficient, lap splicing is required. The lap length should be determined based on the rebar diameter, grade, and design requirements. 7. Placement: The rebars should be placed accurately and securely inside the slab formwork. Proper alignment and placement ensure that the rebars are positioned correctly to resist the anticipated loads. It is important to note that these guidelines are general and may vary depending on the specific project, structural design, and local building codes. It is recommended to consult with a structural engineer or refer to the relevant building codes and standards for precise guidelines specific to your project.

Q:Can steel rebars be used in structures with high resistance to moisture?: Structures that require high resistance to moisture can incorporate steel rebars. Nonetheless, it is crucial to acknowledge that steel is prone to corrosion when exposed to moisture for extended periods. In order to mitigate this risk, preventive measures such as implementing adequate concrete coverage and waterproofing techniques are necessary. Furthermore, utilizing steel rebars with corrosion-resistant coatings or alloys, such as epoxy-coated or stainless steel rebars, can significantly augment moisture resistance. The longevity and durability of structures in high-moisture environments heavily rely on proper design, construction, and maintenance practices.

Q:How do steel rebars contribute to the fire resistance of a building?: Steel rebars contribute to the fire resistance of a building by providing structural integrity and stability. In the event of a fire, the steel rebars help prevent the collapse of the building by maintaining the structural strength of the concrete components. The high melting point of steel also slows down the spread of fire, allowing occupants more time to evacuate and firefighters more time to control the blaze. Additionally, when exposed to high temperatures, steel rebars form a protective layer of oxide that insulates the surrounding concrete, further delaying the effects of fire.

Q:Can steel rebars be used in marine structures?: Yes, steel rebars can be used in marine structures. However, it is crucial to use corrosion-resistant rebars, such as stainless steel rebars or epoxy-coated rebars, to prevent corrosion in the harsh marine environment.

Q:How are steel rebars used in the construction of power plants?: Due to their strength and durability, steel rebars are widely used in power plant construction. These reinforced steel bars are essential for providing structural support and reinforcement to the concrete components of the power plant. One important application of steel rebars in power plant construction is in the construction of foundations and structural members. These foundations need to be strong and stable to support heavy equipment and machinery, as well as withstand dynamic loads and vibrations. To enhance the structural integrity and resistance to compressive and tensile forces, steel rebars are embedded within the concrete foundation. In addition to foundations, steel rebars are also utilized in the construction of walls, columns, and beams in power plants. These elements play a crucial role in supporting the overall structure and ensuring its stability. By adding steel rebars to the concrete mix, the resulting reinforced concrete components can withstand higher loads and resist cracking or deformation under stress. Furthermore, steel rebars are employed in the construction of containment structures in nuclear power plants. These structures are designed to confine any potential release of radioactive materials in case of accidents or incidents. By incorporating steel rebars into the concrete walls and floors of these containment structures, their strength and resistance to impact and penetration are significantly improved, thus enhancing the safety and security of the power plant. In summary, steel rebars are of utmost importance in power plant construction as they provide reinforcement to concrete elements, ensuring the structural integrity and long-lasting nature of the facility. Their use enhances the strength, durability, and safety of the power plant, enabling it to withstand various operational and environmental conditions.

Q:Can steel rebars be used in the construction of residential complexes?: Yes, steel rebars can be used in the construction of residential complexes. Steel rebars are commonly used in construction for their strength, durability, and ability to reinforce concrete structures. They provide structural stability and can support the weight of residential buildings, making them suitable for use in the construction of residential complexes.

Q:How long do steel rebars last in structures?: Steel rebars can last for several decades, typically around 50 to 100 years, when used in structures. However, their lifespan can be affected by various factors such as the quality of the rebar, environmental conditions, maintenance practices, and exposure to corrosive agents. Regular inspections and proper maintenance can significantly extend the lifespan of steel rebars in structures.

Q:What are the different methods of connecting steel rebars together?: The connection of steel rebars can be achieved through various methods, depending on the specific needs of the construction project. Here are some commonly used techniques: 1. Lap Splicing: This method involves overlapping two rebars and securing them together using steel wire or bars. It is a cost-effective approach, although it requires longer rebars. 2. Mechanical Splicing: By using a mechanical coupler such as a sleeve or collar, two rebars can be connected. This method offers a strong and reliable connection and allows for flexibility in rebar positioning. It is faster and more efficient than lap splicing. 3. Welding: Steel rebars can be connected by heating and fusing their ends together using an electric arc. This creates a permanent and robust connection. However, welding demands skilled labor and can be time-consuming and expensive. 4. Threaded Couplers: Similar to mechanical splicing, this method involves threading the ends of rebars and connecting them using a threaded coupler. It provides a reliable connection and is commonly used in larger construction projects. 5. Grout Sleeve Splicing: This technique incorporates a grout-filled sleeve between two rebars to establish a connection. The grout enhances strength and stability, making it suitable for seismic zones or areas requiring high strength and ductility. 6. Reinforcing Bar Couplers (RBC): RBC is a proprietary method that employs a threaded sleeve filled with epoxy resin to connect rebars. It offers high load capacity, ease of installation, and resistance to corrosion. To determine the most appropriate method for connecting steel rebars in a specific construction project, it is crucial to consult structural engineers and adhere to building codes and regulations.

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