ASTM STANDARD HIGH QUALITY HOT ROLLED REBAR

ASTM STANDARD HIGH QUALITY HOT ROLLED REBAR System 1

ASTM 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

ASTM 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 improve the structural integrity of concrete?: Steel rebars improve the structural integrity of concrete by providing reinforcement and added strength to the material. They are embedded within the concrete, acting as a framework that helps to distribute and carry loads more effectively, preventing cracks and enhancing the overall durability and stability of the structure.

Q:Can steel rebars be used in foundations and footings?: Certainly, steel rebars are suitable for use in foundations and footings. In fact, these applications commonly employ steel rebars owing to their exceptional tensile strength and durability. Typically composed of carbon steel, steel rebars reinforce concrete structures effectively, bolstering their resistance against tension and bending forces. By integrating rebars into the concrete, additional strength is provided, mitigating the risk of cracking or failure when subjected to heavy loads. Consequently, utilizing steel rebars in foundations and footings is an established construction practice, guaranteeing the stability and longevity of the structure.

Q:How are steel rebars cut and shaped on-site?: On-site, steel rebars are commonly subjected to cutting and shaping using a variety of tools and techniques. The typical process entails the following steps: 1. Measurement: Prior to anything else, the rebars are measured to determine their required length and shape. Measuring tapes, rulers, or other measuring devices are employed for this purpose. 2. Marking: Once the measurements have been taken, the rebars are marked at the appropriate points using chalk or a marker. These markings serve as guidelines to ensure accurate cutting and shaping of the rebars. 3. Cutting: Mechanical or hydraulic cutting tools are then utilized to cut the rebars along the marked lines. Rebar cutters, angle grinders with cutting discs, or portable band saws are some commonly employed tools. These tools are specifically designed to handle the high strength of steel rebars, resulting in clean and precise cuts. 4. Shaping: After the rebars have been cut to the desired lengths, they can be further shaped as required. This shaping process involves bending the rebars to specific angles or curves. Manual rebar benders or electric rebar bending machines are commonly used for this purpose. These tools enable accurate shaping of the rebars, ensuring compliance with the necessary structural design. 5. Tying: Once the rebars have been cut and shaped, they are often bound together using wire or rebar tying machines. This binding process aids in securing the rebars in their designated positions within the concrete structure. It is important to emphasize that the cutting and shaping of rebars on-site necessitate skilled workers who possess the necessary training to handle the tools and observe appropriate safety measures. These workers must also possess a solid understanding of the structural requirements and be capable of interpreting construction drawings to accurately cut and shape the rebars in accordance with the project specifications.

Q:Can steel rebars be used in architectural or decorative concrete applications?: Yes, steel rebars can be used in architectural or decorative concrete applications. They provide structural reinforcement and enhance the overall strength and durability of the concrete. Additionally, when properly designed and installed, steel rebars can be concealed or incorporated into the design, making them suitable for various aesthetic purposes in architectural or decorative concrete projects.

Q:Are steel rebars easy to work with?: Steel rebars can be challenging to work with due to their weight and rigidity, but with proper tools and techniques, they can be effectively manipulated and integrated into construction projects.

Q:How do steel rebars contribute to the overall durability and service life of concrete structures?: Steel rebars contribute to the overall durability and service life of concrete structures in several ways. Firstly, they enhance the tensile strength of concrete, which is otherwise weak in tension. By providing reinforcement, rebars help distribute the load evenly, preventing cracks and failure due to excessive stress. Additionally, rebars help to control shrinkage and thermal expansion, minimizing the risk of cracking and ensuring the structural integrity of the concrete. Furthermore, steel rebars are corrosion-resistant, protecting the concrete from the detrimental effects of moisture and other environmental factors. Overall, the presence of steel rebars significantly improves the strength, durability, and longevity of concrete structures.

Q:Are there any alternatives to steel rebars?: There are multiple options available instead of steel rebars. One such option is the utilization of fiber-reinforced polymer (FRP) rebars, which consist of high-strength fibers embedded in a polymer matrix. FRP rebars present various advantages over traditional steel rebars, such as resistance to corrosion, high tensile strength, and lightweight characteristics. Moreover, they are non-magnetic and electrically non-conductive, making them appropriate for areas with concerns regarding electromagnetic interference. Another alternative is the employment of basalt rebars, which are manufactured from fibers derived from basalt rock. Basalt rebars offer similar benefits to FRP rebars, including corrosion resistance and high tensile strength. Furthermore, certain manufacturers have developed alternative materials like bamboo, carbon fiber, and glass fiber rebars, which have also displayed potential in specific applications. Nevertheless, it is crucial to consider that the selection of alternative rebars depends on the specific requirements of a project, and factors like cost, availability, and adherence to local building codes should be taken into account when choosing an alternative to steel rebars.

Q:How are steel rebars protected from theft during construction?: Steel rebars are commonly protected from theft during construction through various security measures. These may include storing them in locked and secured areas, implementing surveillance systems, using GPS tracking devices, employing security personnel, and maintaining strict inventory management. Additionally, marking the rebars with identification numbers or unique markings can also help deter theft and aid in recovery efforts if stolen.

Q:What is the process of removing rust from steel rebars?: The process of removing rust from steel rebars typically involves several steps. First, the surface of the rebars is cleaned thoroughly using a wire brush or sandpaper to remove loose rust, dirt, and any other contaminants. After cleaning, a rust converter or inhibitor may be applied to neutralize any remaining rust and prevent further corrosion. Once the converter has dried, a primer specifically designed for metal surfaces is applied to provide a protective coating. Finally, a suitable paint or coating is applied to the rebars to ensure long-term protection against rust and corrosion.

Q:Are there any health and safety concerns associated with steel rebars?: Yes, there are potential health and safety concerns associated with steel rebars. Handling and working with steel rebars can pose risks such as musculoskeletal injuries due to their weight and awkward shapes. Additionally, the sharp edges of rebars can cause cuts and puncture wounds if proper precautions are not taken. Furthermore, exposure to steel dust and fumes during cutting, grinding, and welding processes can be harmful to respiratory health if proper ventilation or personal protective equipment is not used. Therefore, it is important to follow safety guidelines and use appropriate protective measures to mitigate these potential health and safety hazards.

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