Deformed iron rods for construction building

Deformed iron rods for construction building

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1000 m.t.

Supply Capability:: 17497 m.t./month

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Specification

Standard:

AISI

Technique:

Hot Rolled

Shape:

Round

Surface Treatment:

Dry

Steel Grade:

RHB335,HRB400

Certification:

ISO,CE

Thickness:

6-38mm

Length:

5.8-12M

Net Weight:

1-2.5MT

steel rebar is metal bars often used in construction for pouring concrete or supporting walls and columns. The

rebar can be smooth, though they are frequently manufactured with deformations that create greater texture to

which concrete can adhere, creating a stronger bond that helps prevent cracking of concrete. These deformations

do not create weaknesses in the rebar, and when rebar is measured to determine its diameter, it is typically measured

at the narrowest point. Strength grades indicate the amount of pressure the steel rebar can withstand, and grade and

diameter are typically presented in both imperial and metric units

Product Description :

Chemical composition (%):	Steel		C		Si	Mn		P	S		Ceq
	HRB335		0.25		0.80	1.60		0.045	0.045		0.52
	HRB400										0.54
	HRB500										0.55
Mechanical properties	Steel	Rel/ MPa		Rm/ MPa			A/ %			Agt/ %
		≥
	HRB335	335		455			17			7.5
	HRB400	400		540			16
	HRB500	500		630			15
Package:	Standard export packing or as customer's request
Application:	Construction, building, bridge, road. ect
Payment terms	1).100% irrevocable L/C at sight. 2).30% T/T prepaid and the balance against the copy of B/L. 3).30% T/T prepaid and the balance against L/C
Delivery time	15-30 days after receipt of L/C or deposit by T/T

Deformed iron rods for construction building

Features

1、Pure steel quality, stable chemical contents, small tolerance.
2、Constant Quality, good drawing performance.
3、High dimension accuracy degree, accuracy degree of Level C up to 80%, smooth surface, less scale, easy to be pickled.
4、Automatic bundling with 4 lines by Machine in tidy and good looks
5、Big high quality percentage, small coil percentage, and heavy coil weight for Hard Coil.
6、High sorbitizing percentage.

Packing:

In bundles, each bundle weight 3.5 tons. Load by container or by bulk verssel.

Deformed iron rods for construction building

FAQ:

1.Q: What's your MOQ(minimum order quantity)?

A: One full container, mixed acceptable .

2. Q: What's your packing methods?

A: Packed in bundle or bulk ..

3. Q: How can I buy CNBM products in my country?

A:Please send us an inquiry or email ,we will reply to you if there is distributor in your country

4. Q: Can we visit your factory?

A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.

5. Q: How long does it take to get the product if i place an order?

A:With the process of your requirements,we will pack and deliver in 3-7 days. If it is by sea shipment,it will take 15-45 days depending on different locations

Q: Are there any specific safety precautions to be taken while handling steel rebars?: There are several safety measures that need to be taken into account when handling steel rebars. Here are some important factors to consider: 1. Personal Protective Equipment (PPE) is essential. It is crucial to wear the appropriate gear, including safety goggles or glasses, gloves, and steel-toed boots. These items will help safeguard against potential eye injuries, cuts, and crushed toes. 2. Proper lifting techniques must be employed when handling rebars. This involves bending at the knees, maintaining a straight back, and utilizing leg muscles to lift the load. Twisting or jerking movements should be avoided to prevent strains or sprains. 3. Rebars should be stored in an organized and secure manner. They should not be leaned against walls or other structures to avoid falling and causing harm. 4. The sharp edges of rebars should be handled with caution. Careful handling is necessary to prevent cuts or punctures. Wearing protective gloves is recommended to minimize the risk of hand injuries. 5. When transporting rebars, it is crucial to ensure they are secured properly. This prevents movement or falling off the vehicle. Appropriate restraints such as ropes or straps should be used to secure the load safely. 6. It is important to be mindful of any overhead power lines or live electrical sources in the working area. Maintaining a safe distance from these sources prevents accidental contact with the rebars, which can conduct electricity. 7. Communication and awareness among workers are key. Constantly communicating with others in the vicinity ensures that everyone is aware of the presence of rebars. This helps prevent accidental injuries caused by tripping or colliding with the rebars. By adhering to these safety precautions, the risk of accidents or injuries while handling steel rebars can be minimized. It is also important to undergo proper training and comply with any specific safety guidelines provided by your employer or industry regulations.

Q: Can steel rebars be used in airport runway construction?: Yes, steel rebars can be used in airport runway construction. They are commonly used as reinforcement in concrete to provide strength and durability to the runway.

Q: What is the thermal expansion coefficient of steel rebars?: The thermal expansion coefficient of steel rebars typically ranges between 10 and 12 x 10^-6 per degree Celsius.

Q: What is the effect of improper handling on the quality of steel rebars?: Improper handling of steel rebars can have a significant negative effect on their quality. It can lead to physical damage, such as bending or deformation, which compromises the structural integrity of the rebars. Additionally, improper handling can introduce contaminants or moisture, leading to corrosion and weakening of the steel. Overall, it reduces the strength, durability, and performance of steel rebars, making them less reliable for construction purposes.

Q: Can steel rebars be used in underground parking garage construction?: Indeed, steel rebars find utility in the construction of underground parking garages. They are frequently employed in the reinforcement of concrete structures, including those built below the ground level. By endowing the concrete with strength and reinforcement, the rebars enable it to withstand the immense weight and pressure exerted by the structure above. Moreover, steel rebars possess remarkable resistance to corrosion—a quality of utmost significance in subterranean environments where moisture and other corrosive agents are likely to exist. In summary, steel rebars emerge as a dependable and widely preferred option for reinforcing concrete during the construction of underground parking garages.

Q: Can steel rebars be used in the construction of shopping complexes?: Yes, steel rebars can be used in the construction of shopping complexes. Steel rebars are commonly used as reinforcement in concrete structures, including shopping complexes, due to their high strength and ability to withstand heavy loads. They provide structural integrity and enhance the overall strength and durability of the building. Steel rebars are also resistant to corrosion, which is crucial for structures like shopping complexes that are exposed to varying weather conditions and high foot traffic. Additionally, the use of steel rebars allows for flexibility in design and construction, enabling architects and engineers to create complex and unique structures. Overall, steel rebars are a reliable and widely used material for reinforcing concrete in the construction of shopping complexes.

Q: How are steel rebars classified based on their diameter?: The standardized system for categorizing steel rebars is based on their diameter. Rebars are measured in millimeters and assigned a specific number to indicate their diameter. The most commonly used classification system is known as the "nominal diameter" system, which groups rebars into different sizes according to their diameter. The nominal diameter is represented by a whole number, such as 6, 8, 10, 12, and so on. Under this system, the nominal diameter provides an approximation of the rebar's diameter in millimeters. For example, a rebar with a nominal diameter of 8 has an approximate diameter of 8 millimeters. Rebars can have diameters ranging from 6 millimeters to 50 millimeters or even larger. It is important to consider that the actual diameter of a rebar may slightly differ from its nominal diameter due to manufacturing tolerances. Nevertheless, these variations typically fall within an acceptable range. The classification of steel rebars based on their diameter holds great significance in construction and engineering. It plays a crucial role in determining the appropriate size and strength of rebars needed for specific applications. Different diameters of rebars possess varying load-bearing capacities, and accordingly, they are utilized in various structural elements like beams, columns, slabs, and foundations. In conclusion, steel rebars are categorized according to their diameter using the nominal diameter system, where the approximate diameter is expressed as a whole number in millimeters. This classification system aids in selecting the suitable size and strength of rebars for different construction purposes.

Q: What is the maximum allowable stress for steel rebars?: The maximum allowable stress for steel rebars is typically determined by design codes and standards, which vary depending on the specific application and country. However, in general, the maximum allowable stress for steel rebars is usually around 0.6 times the yield strength of the steel.

Q: What is the process of inspecting steel rebars for quality control?: To ensure that steel rebars meet the required standards and specifications, the quality control inspection process encompasses various steps. Below is a general outline of the process: 1. Visual Inspection: Initially, the rebars undergo visual inspection to identify any visible defects such as cracks, surface imperfections, or irregular shapes and sizes. This can be done manually or by utilizing automated systems that employ image processing techniques to detect defects. 2. Measurement and Dimensional Inspection: The dimensions of the rebars, including length, diameter, and shape, are measured using calibrated instruments such as calipers, gauges, or laser-based devices. These measurements are then compared to specified tolerances to ensure compliance. 3. Chemical Analysis: A sample of rebars is taken and subjected to chemical analysis to determine the steel's composition. This involves measuring the levels of carbon, manganese, sulfur, phosphorus, and other elements. The results are then compared to the required chemical composition specified in the standards. 4. Mechanical Testing: The mechanical properties of the rebars, such as tensile strength, yield strength, elongation, and bendability, are crucial for construction purposes. Samples are extracted from the batch and tested in a laboratory using standardized tests, such as tensile testing machines, to ensure they meet the specified requirements. 5. Corrosion Resistance Testing: Since rebars are often exposed to harsh environmental conditions, assessing their resistance to corrosion is essential. This can be achieved through tests like salt spray testing or electrochemical methods, which measure the rebars' corrosion resistance and ensure their long-term strength. 6. Weldability Testing: If the rebars are intended for welding applications, their ability to form a strong and defect-free weld joint is assessed. This includes evaluating their weldability through visual inspection, bend tests, or even destructive testing of welded samples. 7. Documentation and Certification: Throughout the inspection process, detailed records of measurements, test results, and observations are documented. If the rebars pass all quality control tests, a certification or quality control report is issued, confirming that they meet the required standards and specifications. It is important to note that the specific inspection procedures may vary depending on the applicable standards, project requirements, and the type of rebar being inspected. Furthermore, these inspections can be conducted by internal quality control teams or independent third-party inspection agencies to ensure impartiality and accuracy of the results.

Q: Can steel rebars be bent without compromising their strength?: Steel rebars possess the ability to be bent while still maintaining their strength. Their high tensile strength enables them to endure the forces of bending and stretching without experiencing any breakage or loss of structural integrity. The process of bending involves the application of a regulated amount of force to the rebar, causing the material to deform and acquire a new shape. However, it is essential to adhere to the recommended limits and guidelines provided by the manufacturer or industry standards when carrying out the bending procedure. Exceeding the specified limits may result in the development of microcracks or other defects that can compromise the strength of the rebar. Therefore, it is of utmost importance to employ proper bending techniques and utilize suitable equipment to ensure that the steel rebars retain their strength even after being bent.

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