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 affect the structural capacity of concrete beams and columns?: Steel rebars greatly enhance the structural capacity of concrete beams and columns. By reinforcing the concrete, rebars increase its tensile strength, allowing it to withstand greater loads and prevent cracking or failure. The combination of steel rebars and concrete creates a more robust and durable structure, ensuring its ability to bear heavy loads and withstand external forces.

Q: Can steel rebars be used in structures with high resistance to fire?: Steel rebars are indeed able to be utilized in structures that possess strong resistance to fire. Due to its high melting point and ability to maintain its strength even when exposed to elevated temperatures, steel proves to be an appropriate choice for incorporation into fire-resistant structures. Furthermore, steel rebars can undergo a coating process involving the application of fire-resistant substances such as epoxy or intumescent coatings, thereby augmenting their fire resistance capabilities. These coatings function by establishing a protective layer that impedes the steel from reaching its critical temperature and consequently compromising its structural integrity during a fire event. Thus, it is commonplace to find steel rebars being employed in a variety of fire-resistant structures, including but not limited to high-rise buildings, bridges, and industrial facilities, where prioritizing fire safety is of utmost importance.

Q: Is the tie bar used for the longitudinal joint of cement concrete pavement threaded or smooth? Where is the dowel bar for the transverse joint construction?: Dowel arm for transverse construction joint. The transverse construction dowel bar is applied with a light circle and half coated with asphalt, allowing sliding. In practical application, the construction units are convenient for drawing, often use thread steel, and do not apply asphalt. The concrete pouring time on both sides of the construction joint is different, the contraction during the condensation process is not synchronous, and the dowel bar can not be stretched and formed a weak link. Cracks occur at this weak point when concrete slabs contract under loads or natural factors.

Q: How do steel rebars affect the thermal properties of a structure?: The thermal properties of a building or structure can be significantly influenced by steel rebars, which are commonly used in reinforced concrete structures. To begin with, steel rebars have a higher thermal conductivity than concrete. This means that when embedded within concrete, they can serve as thermal bridges, allowing heat to easily transfer through the structure. Consequently, there is increased heat loss during colder months and increased heat gain during warmer months, leading to higher energy consumption for heating and cooling. Additionally, the thermal expansion and contraction of the structure can be affected by steel rebars. Compared to concrete, steel has a higher coefficient of thermal expansion, causing it to expand and contract more with temperature changes. This differential movement between the steel rebars and the surrounding concrete can result in cracks and structural deformations, compromising the overall thermal performance of the structure. Moreover, the moisture behavior of a structure can also be influenced by steel rebars. As previously mentioned, steel has a higher thermal conductivity and electrical conductivity than concrete. This electrical conductivity can promote the corrosion of steel rebars when they come into contact with moisture or water. Consequently, corrosion leads to the formation of rust, which expands and further damages the surrounding concrete. This, in turn, increases moisture ingress, compromising the insulation properties of the structure and potentially causing mold growth and other moisture-related issues. To conclude, steel rebars have direct and indirect impacts on the thermal properties of a structure. They act as thermal bridges, affecting heat transfer, and their differential thermal expansion and corrosion potential can compromise the overall thermal performance and moisture behavior of the structure. Proper design, insulation, and corrosion protection measures should be implemented to mitigate these effects and ensure optimal thermal performance.

Q: What is the recommended diameter of steel rebars for foundation reinforcement?: The recommended diameter of steel rebars for foundation reinforcement typically ranges from 12mm to 32mm, depending on the specific requirements and load-bearing capacity of the foundation.

Q: What are the environmental benefits of using steel rebars?: Using steel rebars in construction projects has several environmental benefits. Firstly, steel is a highly recyclable material, which means that steel rebars can be reused or repurposed after their initial use. This reduces the demand for new steel production and decreases the amount of waste sent to landfills. Additionally, steel rebars have a longer lifespan compared to other construction materials, such as wood or concrete. This durability reduces the need for frequent replacements and repairs, thus reducing the environmental impact associated with production and transportation of new materials. Steel rebars also offer superior strength and stability, leading to more resilient structures. This helps in reducing the risk of structural failures or collapses, which can have devastating environmental consequences. By using steel rebars, the overall safety and longevity of buildings and infrastructure are enhanced, reducing the need for extensive reconstruction or demolition in the future. Furthermore, steel rebars are resistant to corrosion, which means that they require less maintenance and upkeep over time. This reduces the use of chemicals and resources typically needed for maintenance purposes, resulting in lower environmental impact. Lastly, steel rebars can be manufactured with a high percentage of recycled content. By utilizing recycled steel, the demand for new steel extraction and the associated environmental impacts, such as deforestation and habitat destruction, can be reduced. Overall, the use of steel rebars in construction projects offers several environmental benefits, including reduced waste generation, increased durability, enhanced structural safety, lower maintenance requirements, and decreased reliance on new steel production.

Q: Can steel rebars be used in modular bridges?: Yes, steel rebars can be used in modular bridges. Steel rebars are commonly used as reinforcement in concrete structures, including bridges. In modular bridges, where pre-fabricated components are assembled on-site, steel rebars can be used to strengthen the concrete elements and provide additional support for the structure. The rebars are embedded within the concrete elements to enhance their tensile strength and prevent cracking or collapsing under heavy loads. This reinforcement ensures the durability and stability of the modular bridge, making it a reliable and safe transportation solution.

Q: How do steel rebars affect the acoustic properties of a structure?: Steel rebars can have a significant impact on the acoustic properties of a structure. Due to their high density and rigidity, steel rebars can act as conductors of sound and vibrations. This means that when sound waves or vibrations encounter steel rebars, they can easily be transmitted through them, resulting in increased noise levels and reduced acoustic insulation. In terms of airborne sound transmission, steel rebars can create a direct pathway for sound waves to travel through a structure. This can lead to the amplification of sound, especially in areas where rebars are in direct contact with walls or floors. As a result, the overall acoustic quality of the structure may be compromised, causing increased noise levels and decreased speech intelligibility. Steel rebars can also affect the structure's ability to block impact or structure-borne noise. When vibrations are generated, for example, from footsteps or machinery, the rigid steel rebars can efficiently transmit these vibrations throughout the structure. This can result in the amplification and propagation of structure-borne noise, making it more perceptible in different areas of the building. To mitigate the negative effects of steel rebars on the acoustic properties of a structure, various techniques can be employed. One common method is to use acoustically decoupled materials or resilient mounts to isolate the rebars from the surrounding structure, reducing the transmission of vibrations. Additionally, incorporating sound-absorbing materials, such as acoustic panels or insulation, can help to absorb and dampen sound waves, improving the overall acoustic performance of the space. Overall, steel rebars can have a significant impact on the acoustic properties of a structure. Their high density and rigidity make them efficient conductors of sound and vibrations, potentially leading to increased noise levels and reduced acoustic insulation. Therefore, careful consideration of acoustic design and appropriate use of soundproofing measures are essential in minimizing the adverse effects of steel rebars on the acoustic quality of a building.

Q: What is the maximum allowable diameter for steel rebars?: The maximum allowable diameter for steel rebars varies depending on the specific construction project and design specifications. However, commonly used steel rebars typically range from 6mm to 50mm in diameter.

Q: Can steel rebars be used in retaining walls and dams?: Yes, steel rebars can be used in retaining walls and dams. Steel rebars are commonly used in construction projects as reinforcement to provide strength and stability to concrete structures. In retaining walls and dams, where the primary objective is to withstand high pressure and heavy loads, steel rebars are often incorporated to enhance the structural integrity and durability of these structures.

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