deformed steelbar

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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

Q: Can steel rebars be used in structures exposed to extreme weather conditions?: Yes, steel rebars can be used in structures exposed to extreme weather conditions. Steel rebars have excellent strength and durability, making them suitable for withstanding harsh environmental conditions including extreme temperatures, high humidity, and heavy rainfall. Additionally, steel rebars are resistant to corrosion, which is crucial in structures exposed to extreme weather as it helps maintain their structural integrity over time.

Q: How are steel rebars protected against chemical attacks?: Steel rebars are typically protected against chemical attacks through the use of protective coatings or by incorporating corrosion inhibitors in the concrete mix. These measures act as barriers, preventing corrosive elements from reaching and damaging the steel rebars.

Q: Difference between round bar and threaded steel in use: Because the surface has a thread shape, it can increase the firm bond with the concrete. The longitudinal reinforcement and stirrups shall be used preferentially in the concrete members.

Q: What is the role of steel rebars in bridge deck construction?: Steel rebars play a crucial role in bridge deck construction as they provide reinforcement and strength to the structure. They are used to distribute and withstand the load and stresses that the bridge deck may experience, ensuring its stability and durability over time.

Q: Can steel rebars be recycled after demolition?: It is possible to recycle steel rebars once a demolition takes place. Steel is widely recycled worldwide due to its durability and recyclable properties. Once a building or structure is demolished, the steel rebars can be removed and transported to recycling facilities. These facilities employ different techniques, including shredding and melting, to separate the steel from other substances and reshape it into fresh products. By recycling steel rebars, not only is the amount of waste going to landfills reduced, but natural resources are also conserved, and carbon emissions related to steel production are decreased.

Q: What are the advantages of using high-strength steel rebars?: There are several advantages of using high-strength steel rebars in construction projects. Firstly, high-strength steel rebars have a much higher yield strength compared to regular steel rebars. This means that they can withstand much greater tensile forces without deforming or breaking. This allows for the construction of structures that can handle heavy loads and forces, making them more durable and resistant to damage. Secondly, high-strength steel rebars have a smaller diameter compared to regular steel rebars, while still maintaining their strength. This means that they can be used in places where space is limited or where a smaller concrete cover is required. This makes them particularly useful in projects with complex designs or in areas with high seismic activity. Moreover, high-strength steel rebars offer increased cost-efficiency. Due to their higher strength, fewer rebars are needed in construction projects, which results in reduced material and labor costs. Additionally, the smaller diameter of high-strength steel rebars leads to less concrete being needed, further reducing costs. Another advantage of using high-strength steel rebars is their enhanced corrosion resistance. The increased strength of these rebars is often achieved by adding alloying elements, such as chromium or nickel, which improve their resistance to corrosion. This ensures that structures reinforced with high-strength steel rebars have a longer lifespan and require less maintenance over time. Lastly, the use of high-strength steel rebars allows for the construction of lighter and more slender structures. Their higher strength-to-weight ratio enables the design of longer spans and taller buildings, without compromising on safety or structural integrity. This leads to more aesthetically pleasing structures and provides architects and engineers with greater flexibility in their designs. In conclusion, the advantages of using high-strength steel rebars include increased strength, smaller diameter, cost-efficiency, enhanced corrosion resistance, and the ability to construct lighter and more slender structures. These benefits make high-strength steel rebars a preferred choice in various construction projects, ensuring durability, safety, and longevity.

Q: What are the advantages of using steel rebars in construction?: Using steel rebars in construction offers several advantages. Firstly, steel rebars provide exceptional strength and durability, making them ideal for reinforcing concrete structures. They enhance the structural integrity of buildings and ensure they can withstand heavy loads and extreme conditions. Additionally, steel rebars have high tensile strength, allowing them to resist bending or breaking under stress. This characteristic is crucial for preventing structural failures and ensuring the safety of the construction. Moreover, steel rebars are versatile and can be easily shaped and customized to fit specific project requirements. They are also highly resistant to corrosion, which extends the lifespan of the reinforced concrete structure. Lastly, steel rebars are readily available in the market and can be easily sourced, making them a cost-effective choice for construction projects.

Q: Can steel rebars be used in nuclear power plants?: Yes, steel rebars can be used in nuclear power plants. However, they need to meet stringent quality control standards and be specifically designed to withstand the demanding conditions and potential exposure to radiation in a nuclear power plant environment.

Q: How do steel rebars bond with concrete?: Steel rebars bond with concrete through a process called mechanical interlocking, where the rough surface of rebars provides a strong grip with the concrete. Additionally, during the curing process, a chemical reaction occurs between the alkaline environment of concrete and the iron surface of the rebars, forming a layer of iron oxide that further enhances the bond strength.

Q: How are steel rebars bent during construction?: Steel rebars are typically bent during construction using specialized equipment such as hydraulic benders or rebar bending machines. These machines apply force to the rebar, causing it to bend into the desired shape. The process may involve heating the rebar to make it more malleable before bending. Skilled workers follow specific bending instructions and use measurements to ensure the rebars are bent accurately according to the construction plans.

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