Hot rolled high quality deformed bar 10-50mm

Hot rolled high quality deformed bar 10-50mm System 1

Hot rolled high quality deformed bar 10-50mm

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 25000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Deformed Bar Details:

Minimum Order Quantity:		Unit:	m.t.	Loading Port:
Supply Ability:		Payment Terms:		Package:	wire rod packing

Product Description:

Specifications of HRB400 Deformed Steel Bar:

Standard	GB	HRB400
Diameter	6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm

Length	6M, 9M,12M or as required
Place of origin	Hebei, China mainland
Advantages	exact size, regular package, chemical and mechanical properties are stable.
Type	Hot rolled deformed steel bar
Brand name	DRAGON

Chemical Composition: (Please kindly find our chemistry of our material based on HRB500 as below for your information)

Grade	Technical data of the original chemical composition (%)
	C	Mn	Si	S	P		V
HRB400	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045		0.04-0.12
	Physical capability
	Yield Strength (N/cm²)		Tensile Strength (N/cm²)			Elongation (%)
	≥400		≥570			≥14

Theoretical weight and section area of each diameter as below for your information:

Diameter(mm)	Section area (mm²)	Mass(kg/m)	Weight of 12m bar(kg)
6	28.27	0.222	2.664
8	50.27	0.395	4.74
10	78.54	0.617	7.404
12	113.1	0.888	10.656
14	153.9	1.21	14.52
16	201.1	1.58	18.96
18	254.5	2.00	24
20	314.2	2.47	29.64
22	380.1	2.98	35.76
25	490.9	3.85	46.2
28	615.8	4.83	57.96
32	804.2	6.31	75.72
36	1018	7.99	98.88
40	1257	9.87	118.44
50	1964	15.42	185.04

Usage and Applications of HRB400 Deformed Steel Bar:

Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger..

Packaging & Delivery of HRB400 Deformed Steel Bar:

Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.

Each bundle weight: 2-3MT, or as required

Payment term: TT or L/C

Delivery Detail: within 45 days after received advanced payment or LC.

Label: to be specified by customer, generally, each bundle has 1-2 labels

Trade terms: FOB, CFR, CIF

Q: Can steel rebars be used in road and bridge construction?: Yes, steel rebars can be used in road and bridge construction. Steel rebars are commonly used as reinforcement in concrete structures, including roads and bridges, to provide strength and durability. The rebars are embedded within the concrete to enhance its tensile strength and prevent cracking or structural failure. Steel rebars are preferred in such constructions due to their high strength, ductility, and resistance to corrosion. They help to distribute loads and stresses evenly, making the structures more resilient and capable of withstanding heavy traffic and environmental conditions. Additionally, steel rebars can be easily fabricated and customized to meet the specific design requirements of road and bridge construction projects.

Q: What is the tensile strength of different grades of steel rebars?: The tensile strength of different grades of steel rebars varies depending on the specific grade. Common grades include Grade 40, Grade 60, and Grade 75. Grade 40 steel rebars typically have a tensile strength of 40,000 pounds per square inch (psi), Grade 60 rebars have a tensile strength of 60,000 psi, and Grade 75 rebars have a tensile strength of 75,000 psi. It is important to consult the specific grade requirements for any construction project to ensure the appropriate strength is used.

Q: What is the effect of carbonation on steel rebars?: The effect of carbonation on steel rebars is primarily detrimental. Carbonation refers to the process in which carbon dioxide from the atmosphere reacts with the alkaline compounds in concrete, lowering its pH level. This reduction in pH causes a gradual decrease in the passivation layer of steel rebars, which is a protective layer that prevents corrosion. When the passivation layer is compromised due to carbonation, the steel rebars become more susceptible to corrosion. Carbon dioxide reacts with moisture in the concrete, producing carbonic acid, which further lowers the pH level and accelerates the corrosion process. As corrosion progresses, the steel rebars can lose their structural integrity, compromising the overall strength and durability of the concrete structure. The expansion of corrosion products can also exert pressure on the surrounding concrete, leading to cracking and spalling. This can expose the steel rebars to more moisture and oxygen, exacerbating the corrosion process. Furthermore, carbonation can also reduce the effectiveness of any protective coatings applied on the rebars, making them even more vulnerable to corrosion. To mitigate the effects of carbonation on steel rebars, several preventive measures can be taken. These include using concrete with a lower permeability to carbon dioxide, ensuring proper concrete cover thickness, and using corrosion-resistant steel with a higher level of chromium and/or other alloying elements. Regular monitoring and maintenance of the concrete structures are also essential to detect and address any signs of corrosion at an early stage. In summary, carbonation can have a detrimental effect on steel rebars by compromising the passivation layer, leading to corrosion and weakening of the structure. Therefore, it is crucial to implement preventive measures and regular maintenance to ensure the long-term durability and safety of steel-reinforced concrete structures.

Q: What are the typical costs associated with using steel rebars in a construction project?: The typical costs associated with using steel rebars in a construction project can vary depending on several factors. These factors include the size and type of the rebar, the quantity needed, the market conditions, and the location of the project. The cost of steel rebars is usually determined per ton or per linear foot. The price per ton can range from $400 to $600, while the price per linear foot can be anywhere between $0.75 to $1.50. It is important to note that these prices are approximate and can fluctuate based on market demand and availability. Additionally, there may be additional costs involved in the procurement and handling of steel rebars. This can include transportation fees, storage costs, and any necessary equipment or tools required for installation. Other cost considerations may include labor expenses for cutting, bending, and placing the rebars, as well as any reinforcement detailing required by the project's design specifications. These costs can vary depending on the complexity of the project and the skill level of the laborers involved. It is also essential to factor in any potential wastage or scrap material that may occur during the construction process. Proper planning and accurate measurements can help minimize these costs. Overall, the typical costs associated with using steel rebars in a construction project can be significant, but they are necessary for ensuring structural integrity and reinforcement. It is advisable to obtain quotes from multiple suppliers and contractors to ensure competitive pricing and to carefully consider the specific requirements of the project before finalizing the budget.

Q: What are the main characteristics of steel rebars?: The main characteristics of steel rebars include high strength, durability, corrosion resistance, and flexibility. They are commonly used in reinforced concrete structures to reinforce and provide tensile strength to the concrete.

Q: How do steel rebars contribute to the seismic performance of concrete buildings?: Steel rebars contribute to the seismic performance of concrete buildings by providing reinforcement and strength to the structure. The rebars help to distribute and dissipate the energy generated during an earthquake, increasing the building's ability to withstand the seismic forces. They enhance the concrete's tensile strength, preventing cracking and enhancing its overall durability. The combination of concrete and steel rebars creates a composite material that can absorb and withstand the lateral forces caused by ground shaking, reducing the risk of structural failure during seismic events.

Q: What is the impact of steel rebars on the overall sustainability of a building?: Steel rebars have a significant impact on the overall sustainability of a building due to their various environmental, economic, and social implications. Firstly, steel rebars contribute to the durability and resilience of the structure, enhancing the longevity of the building. This means that the building will require fewer repairs and renovations over its lifespan, reducing the need for additional resources and minimizing waste. In terms of environmental impact, steel rebars can be recycled, reducing the demand for new steel production and the associated carbon emissions. Recycling steel rebars also saves energy and reduces the extraction of raw materials, such as iron ore and coal. Additionally, steel rebars can be salvaged and reused in other construction projects, further extending their lifespan and reducing waste. From an economic standpoint, the use of steel rebars can lead to cost savings in construction and maintenance. Steel is a versatile and strong material, allowing for lighter and more efficient designs, which can result in reduced material and labor costs. Moreover, the recyclability and salvagability of steel rebars can provide economic benefits through the resale or repurposing of the material. Furthermore, steel rebars play a crucial role in ensuring the safety and structural integrity of buildings, especially in areas prone to earthquakes or high winds. By providing reinforcement to concrete, steel rebars enhance the resistance of the building to external forces, reducing the risk of collapse or damage during natural disasters. This aspect of safety is essential for the wellbeing of occupants and the community at large. In conclusion, steel rebars have a positive impact on the overall sustainability of a building. They contribute to durability, reduce environmental impacts through recycling and reuse, offer economic benefits, and enhance the safety of the structure. Incorporating steel rebars in construction projects can significantly improve the long-term sustainability and resilience of buildings.

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: How do steel rebars affect the overall sustainability of bridge constructions?: Steel rebars play a crucial role in enhancing the overall sustainability of bridge constructions. By reinforcing the concrete structure, steel rebars improve the durability and strength of the bridge, allowing it to withstand heavy loads and harsh environmental conditions for an extended period. This increased lifespan reduces the need for frequent repairs or replacements, thereby minimizing resource consumption and waste generation. Additionally, steel rebars can be recycled at the end of their life cycle, reducing the environmental impact associated with their production. Hence, the use of steel rebars contributes to the long-term sustainability of bridge constructions.

Q: How are steel rebars transported and stored on construction sites?: Steel rebars are typically transported to construction sites using trucks or trailers. These vehicles are designed to safely carry and unload the heavy and bulky rebars. Upon arrival at the site, the rebars are usually offloaded using cranes or forklifts. To ensure efficient storage and easy access, rebars are often stored in designated areas called rebar yards. These yards are typically organized in a way that allows for easy identification and retrieval of rebars when needed. The rebars are sorted and stacked according to their size, length, and type to prevent any confusion during construction. In the rebar yard, rebars are commonly stored horizontally on steel or wooden racks. The racks are designed to provide proper support and prevent damage to the rebars. It is important to note that rebars should be stored above ground level to protect them from moisture, rust, and contamination. They should also be kept away from any damp areas or direct contact with soil. To maintain the quality of the rebars, it is crucial to protect them from exposure to rain, snow, and excessive sunlight. Therefore, construction sites often use protective covers, such as tarps or plastic sheets, to shield the rebars and prevent any corrosion or deterioration. Additionally, construction workers must handle rebars with care to avoid any bending or deformation. Special attention should be given to prevent rebars from being dropped or dragged, as it can compromise their structural integrity. Overall, the transportation and storage of steel rebars on construction sites require careful planning and adherence to safety guidelines to ensure their quality and effectiveness in reinforcing concrete structures.

Send your message to us

*Email

*TEL

*Quantity

*Unit