STEEL REBAR HIGH QUALITY DEFORMED BAR HRB400 HRB500

STEEL REBAR HIGH QUALITY DEFORMED BAR HRB400 HRB500 System 1

STEEL REBAR HIGH QUALITY DEFORMED BAR HRB400 HRB500

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 200 m.t.

Supply Capability:: 50000 m.t./month

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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: How do steel rebars enhance the bond between concrete and reinforcement?: Steel rebars enhance the bond between concrete and reinforcement through various mechanisms. Firstly, the presence of rebars in concrete increases the mechanical interlock between the two materials. As concrete is poured around the rebars, it fills the gaps between the steel bars, creating a strong bond when it hardens. This mechanical interlock helps to prevent the separation of concrete and reinforcement, especially under tensile loads. Secondly, steel rebars enhance the bond by providing additional surface area for adhesion. The rough texture of the rebars allows the concrete to grip onto the steel surface, creating a stronger bond. This adhesion is further improved by the corrosion products that form on the surface of the steel rebars over time. These products create a rougher surface, increasing the bond strength between the concrete and reinforcement. Thirdly, rebars act as load transfer devices in concrete structures. When external forces are applied to the structure, the rebars distribute and transfer these forces to the surrounding concrete. This load transfer mechanism helps to improve the overall structural integrity and performance of the concrete element. Additionally, steel rebars also enhance the bond between concrete and reinforcement through their ability to resist deformation. Under tensile loads, the rebars elongate and absorb the stress, preventing the concrete from cracking. This prevents the development of cracks that could weaken the bond between the two materials. In summary, steel rebars enhance the bond between concrete and reinforcement by providing mechanical interlock, increased surface area for adhesion, load transfer capabilities, and resistance to deformation. These factors collectively contribute to the overall strength, durability, and performance of reinforced concrete structures.

Q: Can steel rebars be used in the construction of sports stadiums or arenas?: Yes, steel rebars can certainly be used in the construction of sports stadiums or arenas. Steel rebars are commonly utilized as reinforcement in concrete structures, and their high tensile strength and durability make them well-suited for large-scale projects like sports stadiums. The rebars provide additional support and stability to the concrete, helping to withstand the immense loads and forces that stadiums and arenas may experience during events. Additionally, steel rebars can be easily shaped and bent to fit the specific needs and design requirements of the structure, making them a versatile choice for construction purposes.

Q: How do steel rebars affect the overall thermal expansion of concrete structures?: Steel rebars have a significant impact on the overall thermal expansion of concrete structures. Due to the difference in thermal expansion coefficients between steel and concrete, the rebars tend to expand and contract at a different rate compared to the surrounding concrete. This mismatch in thermal expansion can lead to internal stresses and potential cracking in the concrete. However, the presence of steel rebars also provides reinforcement and increases the tensile strength of the structure, which can help counteract these effects and enhance overall durability.

Q: What are the different types of steel rebars used in airport construction?: There are generally two types of steel rebars commonly used in airport construction: epoxy-coated rebars and stainless steel rebars. Epoxy-coated rebars are corrosion-resistant and provide protection against chemicals often found in airports, such as de-icing agents. Stainless steel rebars, on the other hand, offer superior resistance to corrosion and are often used in areas with high humidity or exposure to saltwater. Both types of rebars are essential in ensuring the structural integrity and longevity of airport infrastructure.

Q: What is the role of steel rebars in column and beam construction?: Steel rebars play a crucial role in column and beam construction as they provide reinforcement and strength to the structure. They are used to enhance the load-bearing capacity, resist tensile forces, and prevent cracking or failure due to external pressures. By reinforcing the concrete, rebars ensure stability, durability, and structural integrity, making them essential components in the construction of columns and beams.

Q: How long do steel rebars typically last?: The lifespan of steel rebars tends to be lengthy, enduring for numerous decades. Several factors come into play when determining the exact duration of their longevity, including the quality of the rebar, the environmental conditions it encounters, and the maintenance practices employed. Generally, steel rebars are designed to possess resistance against corrosion, a key factor influencing their durability. Nevertheless, as time passes, rebars may undergo some corrosion as a result of exposure to moisture, chemicals, or other corrosive substances. This corrosion has the potential to diminish their lifespan. The lifespan of steel rebars can be extended through regular inspections, maintenance, and the application of protective coatings. By providing adequate care, steel rebars can typically remain functional for 30 to 50 years, or possibly even longer.

Q: How do steel rebars perform in extreme temperature conditions?: Steel rebars perform well in extreme temperature conditions. Steel has a high melting point and thermal conductivity, allowing it to maintain its structural integrity even at elevated temperatures. Additionally, steel has a low coefficient of thermal expansion, reducing the risk of cracking or warping due to thermal stress. However, it is important to consider the specific grade and composition of the steel rebar, as certain alloys may exhibit different behavior in extreme temperatures.

Q: Can steel rebars be used in the construction of residential communities?: Yes, steel rebars can be used in the construction of residential communities. Steel rebars provide strength and durability to reinforced concrete structures, making them suitable for a wide range of construction projects, including residential buildings. The use of steel rebars helps ensure the structural integrity and longevity of the buildings, making them a reliable choice for residential communities.

Q: Can steel rebars be used in historical monument conservation?: Yes, steel rebars can be used in historical monument conservation. Steel rebars are commonly used in the restoration and strengthening of historical structures as they provide structural support and ensure the stability and longevity of the monument. However, it is essential to carefully analyze the impact of their installation on the historical value and authenticity of the monument. The use of steel rebars should be done in a way that minimizes any visual or aesthetic alterations to the monument, while still ensuring its preservation.

Q: Can steel rebars be used in composite construction systems?: Yes, steel rebars can be used in composite construction systems. Composite construction refers to the combination of different materials, typically concrete and steel, to create a stronger and more efficient structure. Steel rebars are commonly used as reinforcement in concrete structures, providing added strength and durability. In a composite construction system, steel rebars are embedded within the concrete, creating a bond between the two materials. This combination allows for the utilization of the compressive strength of concrete and the tensile strength of steel, resulting in a highly efficient and resilient structure. The use of steel rebars in composite construction systems offers several benefits. Firstly, it enhances the structural integrity of the construction by increasing its load-bearing capacity and resistance to external forces such as earthquakes or heavy loads. Additionally, steel rebars help to control cracking and improve the overall durability of the structure. Furthermore, steel rebars offer flexibility in design and construction. They can be easily shaped and placed according to the specific requirements of the structure, allowing for complex and intricate designs. Moreover, steel rebars can be prefabricated off-site, making the construction process more efficient and time-effective. In conclusion, steel rebars are a crucial component of composite construction systems. Their usage in combination with concrete provides numerous advantages, including increased strength, durability, and flexibility.

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