Deformed Steel Bar Hot Rolled HRB4000 HRB500 ASTM A615 GR40/GR60

Deformed Steel Bar Hot Rolled HRB4000 HRB500 ASTM A615 GR40/GR60 System 1

Deformed Steel Bar Hot Rolled HRB4000 HRB500 ASTM A615 GR40/GR60 System 2

Deformed Steel Bar Hot Rolled HRB4000 HRB500 ASTM A615 GR40/GR60 System 3

Deformed Steel Bar Hot Rolled HRB4000 HRB500 ASTM A615 GR40/GR60

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 500 m.t.

Supply Capability:: 30000 m.t./month

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Product Description:

Specifications of HRB500 Deformed Steel Bar:

Standard	GB	HRB500
Diameter	6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm

Length	6M, 9M,12M or as required
Payment term	TT or L/C
Application	mainly used in construction industry to reinforce concrete structures and so on
Quality	First quality, the goods are from Chinese big manufacturers.
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
HRB500	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045		0.08-0.12
	Physical capability
	Yield Strength (N/cm²)		Tensile Strength (N/cm²)			Elongation (%)
	≥500		≥630			≥12

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 HRB500 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..

Product Description:

Quick Details

Standard:ASTM, BS, GB, JIS
Grade:HRB335
Diameter:6-50mm
Length:6-12m
Place of Origin:Tianjin, China (Mainland)
Application:construction
Deformed Steel Bar:Original Tianjin China
Standard1:BS4449
Standard2:ASTM A615
Standard3:GB/T1449
Grade1:HRB335
Grade2:HRB400
Grade3:HRB500
Grade4:460B
Grade5:GR.40
Grade6:GR.60

Packaging & Delivery

Packaging Details:	with bundle and bare packing
Delivery Detail:	within 15-20days

Specifications

Deformed Steel Bar
1).Standard:BS4449 ASTM A 615
2).Grade:HRB335/400/500,460B,GR40/60
3) Experience : 5years for exporting

Tianjin Baolf Steel Co.,Limited
Standard	BS4449 ASTM A615 GB/T1499
Grade	HRB335/400/500,460B,GR40/60
Diameter	6-50mm
Length	6,9,12m
Technique	Hot Rolled
Application	For Construction

Q:Are there any standards for the spacing of steel rebars in concrete?: Yes, there are standards for the spacing of steel rebars in concrete. These standards are outlined by various organizations, such as the American Concrete Institute (ACI) and the International Building Code (IBC). The spacing requirements vary depending on the specific application, such as the type of structure, load requirements, and other factors. These standards ensure that steel rebars are placed at appropriate intervals to provide sufficient strength and reinforcement to the concrete structure.

Q:Can steel rebars be used in modular bridge construction?: Yes, steel rebars can be used in modular bridge construction. Steel rebars provide strength, durability, and structural stability to the bridge modules, making them an ideal choice for this type of construction.

Q:How do steel rebars impact the overall cost of a construction project?: The overall cost of a construction project can be greatly influenced by steel rebars. To begin with, the price of steel rebars themselves can be quite substantial, especially if large quantities are needed. Various factors such as market demand, availability, and fluctuations in raw material prices can affect the prices of steel rebars. Additionally, the installation of steel rebars incurs extra expenses, including labor, tools, and equipment. Skilled workers are necessary to accurately position the rebars according to the construction plans, which can raise labor costs. Moreover, specialized tools and equipment are required to cut, bend, and tie the rebars, increasing the project's expenses. The use of steel rebars also impacts the construction timeline, which in turn affects the project's cost. Construction projects often have strict deadlines, and any delays in the delivery or installation of rebars can result in additional expenses due to increased labor costs, idle equipment, and potential penalties for late completion. Furthermore, steel rebars play a vital role in providing structural strength and durability to the building. By reinforcing concrete structures, steel rebars enhance their ability to bear loads and resist forces such as earthquakes and extreme weather conditions. This reduces the risk of structural failures and the need for expensive repairs or replacements in the future. In conclusion, steel rebars have a significant impact on the overall cost of a construction project due to their purchase cost, installation expenses, effect on the construction timeline, and long-term benefits in terms of structural integrity and durability. Proper planning, procurement, and installation of steel rebars are crucial for effectively managing costs and ensuring the successful completion of the project within the allocated budget.

Q:How do steel rebars contribute to the strength of concrete structures?: There are multiple ways in which steel rebars contribute to the strength of concrete structures. Firstly, they enhance the tensile strength of the concrete. While concrete is strong when compressed, it is weak when under tension. When a concrete structure is subjected to bending or stretching forces, the steel rebars bear the load and prevent the concrete from cracking or failing. Secondly, steel rebars aid in controlling and preventing the spread of cracks in concrete. By being embedded within the concrete, rebars create a reinforcing framework that redistributes stress across the structure. This helps limit the formation and expansion of cracks, ensuring the overall integrity and durability of the concrete structure. Moreover, steel rebars improve the overall structural stability and load-bearing capacity of concrete structures. By distributing the load more evenly, the presence of rebars allows concrete structures to withstand greater external forces, such as the weight of a building or the impact of seismic activity. Additionally, steel rebars contribute to the longevity of concrete structures. The steel used in rebars is highly resistant to corrosion, which is a common issue in concrete structures exposed to harsh environmental conditions or corrosive elements. This corrosion resistance ensures that the rebars maintain their strength and structural integrity over time, extending the lifespan of the concrete structure. To summarize, steel rebars play a significant role in enhancing the strength of concrete structures by improving tensile strength, controlling crack propagation, enhancing structural stability, and increasing longevity. Their presence ensures that concrete can withstand various external forces and maintain its structural integrity, making them an essential component in the construction of durable and reliable concrete structures.

Q:How do steel rebars affect the overall cost of maintenance?: Steel rebars can significantly affect the overall cost of maintenance in several ways. Firstly, the quality and durability of steel rebars play a crucial role in ensuring the structural integrity of buildings and infrastructure. When steel rebars are of high quality and properly installed, they can enhance the strength and longevity of concrete structures, reducing the need for frequent repairs or replacements. This, in turn, lowers the maintenance costs over time. Additionally, steel rebars provide reinforcement to concrete, making structures more resistant to external forces such as seismic activities, heavy loads, and environmental factors like corrosion. By increasing the structural resilience, steel rebars can minimize the likelihood of damage and the subsequent maintenance expenses that would be required to fix or restore the affected areas. Moreover, proper maintenance of steel rebars themselves is essential to prevent corrosion. Without adequate preventive measures like regular inspections, cleaning, and applying protective coatings, rebars can succumb to rust and corrosion, ultimately compromising the structural integrity of the entire concrete structure. Corrosion-related repairs or replacements can be extremely costly and time-consuming, significantly impacting the overall maintenance budget. Lastly, the choice of steel rebars during the construction or renovation phase can also influence maintenance costs. Opting for higher-grade rebars with superior corrosion resistance can initially increase the upfront costs but can substantially reduce the long-term maintenance expenses. Investing in high-quality steel rebars can minimize the need for frequent repairs and replacements, resulting in overall cost savings and improved structural reliability. In conclusion, steel rebars have a direct impact on the overall cost of maintenance. By providing reinforcement and enhancing structural integrity, high-quality rebars can reduce the need for repairs, prevent damage, and improve the durability of concrete structures. However, neglecting proper maintenance of rebars can lead to corrosion issues, which can be expensive to address. Therefore, careful consideration of the quality, installation, and ongoing maintenance of steel rebars is essential to minimize maintenance costs in the long run.

Q:What is the ductility of steel rebars?: The ductility of steel rebars refers to its ability to deform under tension without fracturing. Steel rebars are known for their high ductility, allowing them to withstand significant bending and stretching without breaking. This property makes them ideal for reinforcing concrete structures, where they can absorb and distribute loads effectively.

Q:How do steel rebars affect the overall construction cost of industrial buildings?: Steel rebars can significantly affect the overall construction cost of industrial buildings due to their crucial role in enhancing structural strength and durability. While the initial cost of steel rebars might be higher compared to other materials, their use can reduce the need for additional structural support, leading to potential cost savings in terms of labor, time, and materials. Moreover, steel rebars offer long-term benefits by minimizing maintenance and repair expenses, ultimately contributing to the overall cost-effectiveness of the construction project.

Q:Are steel rebars suitable for use in industrial structures?: Industrial structures can benefit from the use of steel rebars. These reinforcing bars, also known as steel rebars, are frequently used in the construction industry to enhance the strength and stability of concrete structures. Crafted from high-strength steel, they possess exceptional tensile strength, making them perfect for fortifying concrete in industrial structures that encounter hefty loads, vibrations, or other dynamic forces. Steel rebars also boast good ductility, enabling them to endure bending without fracturing. This is a crucial characteristic in industrial structures that demand high structural integrity. Moreover, steel rebars display commendable resistance to corrosion, a vital quality in industrial environments where exposure to moisture, chemicals, or other corrosive agents is common. In summary, steel rebars serve as a dependable and long-lasting option for reinforcing industrial structures, preserving their structural stability and safety over time.

Q:How are steel rebars made?: Steel rebars are made through a process called hot rolling, where steel billets are heated to high temperatures and passed through a series of rolling mills to achieve the desired shape and size. This process helps to enhance the strength and durability of the rebars, making them suitable for reinforcing concrete structures.

Q:What are the factors that affect the strength of steel rebars?: The strength of steel rebars can be affected by several factors. These factors include the composition of the steel bar, the manufacturing process used, the size and shape of the rebar, heat treatment processes, corrosion, and the loading conditions applied to the rebars. The composition of the steel bar is crucial in determining its strength. Steel rebars typically contain carbon, with a content ranging from 0.15% to 0.6%. This carbon content affects the hardness and strength of the rebar. Additionally, other elements such as manganese, silicon, and sulfur can also impact the rebar's strength. The manufacturing process used to produce the steel rebars can also influence their strength. Hot rolling is commonly employed, which involves heating the steel billets to high temperatures and shaping them by passing them through rollers. The cooling rate during this process can cause variations in the internal microstructure of the bar, resulting in differences in strength. The size and shape of the rebar are significant factors in determining its strength. Thicker and larger diameter rebars generally have higher strength capacities compared to thinner ones. Furthermore, the shape of the rebar, whether it is a plain round bar or has deformations like ribs, can also impact its strength. Heat treatment processes can be applied to steel rebars to enhance their strength. For example, quenching and tempering involve heating the rebar to a high temperature and then rapidly cooling it, increasing its strength and hardness. The specific heat treatment process used depends on the desired strength requirements. Corrosion can significantly reduce the strength of steel rebars over time. When exposed to moisture and oxygen, steel rebars can rust, leading to structural degradation. Proper corrosion protection measures, such as epoxy coating or galvanization, are essential for maintaining the strength and durability of the rebars. The type and magnitude of the applied loads also influence the strength of steel rebars. Different applications require rebars with varying strength capacities. Therefore, the design and engineering of structures should consider the expected loads to determine the appropriate strength of the rebars used. In conclusion, the strength of steel rebars is influenced by their composition, manufacturing process, size and shape, heat treatment, corrosion protection, and the loading conditions they will experience. It is crucial to consider these factors when selecting and using steel rebars in construction projects.

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