Hot rolled deformed bar 6mm-50mm HRB400 ASTM A615

Hot rolled deformed bar 6mm-50mm HRB400 ASTM A615 System 1

Hot rolled deformed bar 6mm-50mm HRB400 ASTM A615

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 20000 m.t./month

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Deformed Bar Details:

Minimum Order Quantity:	m.t.	Unit:	m.t.	Loading Port:
Supply Ability:	m.t./month	Payment Terms:	TT OR LC	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: What is the role of steel rebars in the construction of sports arenas and stadiums?: Steel rebars play a crucial role in the construction of sports arenas and stadiums as they provide structural support and reinforcement to the concrete elements. They help enhance the strength, durability, and stability of the overall structure, ensuring it can withstand heavy loads, seismic forces, and other external pressures. Steel rebars also aid in preventing cracking and deformation of the concrete, thereby ensuring the safety of the spectators and the longevity of the facility.

Q: Are steel rebars suitable for use in historical building restoration?: Yes, steel rebars are commonly used in historical building restoration projects. They provide strength, durability, and structural support required for reinforcing deteriorated or weakened parts of the building. Additionally, steel rebars can be designed and installed in a way that minimizes their visual impact, allowing for the preservation of the building's historical aesthetics.

Q: What are the common types of steel rebars used in bridge construction?: In bridge construction, there are several common types of steel rebars that are widely used. These include: 1. Carbon Steel Rebars: These are the most commonly used rebars in bridge construction. They are made of carbon steel and have high strength and durability. Carbon steel rebars are known for their excellent tensile strength and ability to withstand heavy loads. 2. Stainless Steel Rebars: Stainless steel rebars are corrosion-resistant and have a high resistance to environmental factors such as moisture and chemicals. They are commonly used in bridge construction projects located in coastal areas or environments with high levels of pollution. 3. Epoxy-Coated Rebars: Epoxy-coated rebars are carbon steel rebars that are coated with a layer of epoxy to provide corrosion protection. This type of rebar is commonly used in bridges exposed to harsh environmental conditions, such as bridges located in coastal areas or those subjected to de-icing salts. 4. Galvanized Rebars: Galvanized rebars are carbon steel rebars that have been coated with a layer of zinc. This coating provides excellent corrosion resistance, making galvanized rebars suitable for use in bridge construction projects located in corrosive environments. 5. Fiberglass Rebars: Fiberglass rebars are made of glass fibers embedded in a polymer resin matrix. This type of rebar is lightweight, corrosion-resistant, and has a high strength-to-weight ratio. Fiberglass rebars are commonly used in bridge construction projects where weight reduction is a key consideration. Each type of rebar has its advantages and is selected based on the specific requirements of the bridge construction project, including factors such as the environmental conditions, load-bearing capabilities, and durability requirements.

Q: How are steel rebars anchored into existing concrete?: Steel rebars are typically anchored into existing concrete by using different methods such as epoxy adhesive, mechanical anchoring systems, or by simply embedding the rebars into the fresh concrete during construction.

Q: What are the advantages of using deformed steel rebars?: Using deformed steel rebars in construction projects offers several benefits. Firstly, the unique shape of the rebars enhances the bond with the surrounding concrete. The ridges, bumps, or indentations on the surface of the rebar increase the contact area with the concrete, resulting in improved adhesion. This ensures a stronger bond between the rebar and the concrete, making the overall structure more resistant to forces such as tension, compression, and shear. Secondly, deformed steel rebars provide better resistance to slippage. The irregular surface of the rebar prevents it from easily slipping or moving within the concrete. This is particularly advantageous in structures exposed to seismic activity or heavy loads, as it helps maintain the integrity and stability of the construction. Additionally, the use of deformed steel rebars enhances the overall strength and durability of the project. The deformations on the rebar's surface allow it to better absorb and distribute stress, making it less prone to cracking or failure under high loads. This strength and durability make deformed rebars suitable for various applications, such as bridges, high-rise buildings, and industrial structures. Furthermore, deformed steel rebars offer cost-effectiveness in long-term maintenance. The improved bond between the rebar and concrete reduces the risk of corrosion and deterioration over time. This leads to reduced maintenance and repair costs, as the structure remains resilient and less prone to structural degradation caused by environmental factors. Lastly, deformed steel rebars provide versatility in design. The market offers various types and sizes of deformed rebars, allowing engineers and designers to choose the most suitable option for their specific project requirements. This design flexibility ensures that the rebars can be tailored to meet the structural demands of different applications, contributing to the construction project's overall efficiency and safety. In conclusion, the advantages of using deformed steel rebars include enhanced bonding with concrete, resistance to slippage, improved structural strength and durability, cost-effectiveness in maintenance, and versatility in design. These advantages make deformed steel rebars a preferred choice in construction projects where strength, stability, and long-term performance are crucial considerations.

Q: How do steel rebars prevent concrete structures from cracking under load?: Steel rebars prevent concrete structures from cracking under load by providing reinforcement and increasing the tensile strength of the concrete. When the concrete is subjected to tensile forces, such as those caused by the weight or movement of the structure, it is prone to cracking. However, the inclusion of steel rebars within the concrete helps to distribute these tensile forces throughout the structure, making it more resistant to cracking. The steel rebars act as a framework, absorbing and dispersing the tension, thereby enhancing the overall structural integrity and preventing cracks from forming.

Q: What are the guidelines for proper handling and disposal of steel rebars on construction sites?: The guidelines for proper handling and disposal of steel rebars on construction sites include wearing appropriate personal protective equipment (PPE) such as gloves and safety glasses, using proper lifting techniques to avoid injury, storing rebars in a designated area away from workers and equipment, and disposing of them in accordance with local regulations, which may require recycling or proper disposal in designated waste sites.

Q: How are steel rebars bent on-site?: Rebar benders, specialized machinery used on-site, are typically employed to bend steel rebars. These machines possess the requisite force and precision to achieve the desired shape and angle for the rebars. To begin the process, the location where the rebar needs to be bent is measured and marked. Subsequently, the rebar is placed within the rebar bender, which is equipped with adjustable rollers and bending arms. These rollers serve to guide the rebar throughout the bending process, while the bending arms gradually apply the necessary force to bend the rebar to the desired angle and shape. The operator of the rebar bender meticulously adjusts the rollers and bending arms to ensure the accurate bend radius and angle are achieved. This requires skill and experience to guarantee the rebars are bent precisely in accordance with the construction plans and specifications. After the rebar has been bent to the desired shape, it is securely fastened in place using tie wire or rebar clips. This ensures that the rebars retain their shape and position during the process of pouring concrete. Bending rebars on-site presents several advantages. Firstly, it allows for greater flexibility and adaptability during construction, as the rebars can be customized and adjusted to meet specific design requirements. Secondly, on-site bending reduces transportation and storage costs, since rebars can be delivered in longer lengths and bent as needed. Lastly, on-site bending saves time and enhances construction efficiency, as the rebars can be bent and installed immediately, eliminating the need for off-site fabrication and transportation delays. In summary, steel rebars are bent on-site utilizing specialized rebar benders, which provide the necessary force and precision to achieve the desired shape and angle. This process offers flexibility, cost savings, and improved construction efficiency.

Q: What are the different types of steel rebars used in road bridges?: There are primarily two types of steel rebars commonly used in road bridges: carbon steel rebars and stainless steel rebars. Carbon steel rebars are the most widely used and cost-effective option, known for their strength and durability. On the other hand, stainless steel rebars are corrosion-resistant, making them suitable for bridges exposed to harsh environmental conditions or those built near bodies of water. Each type of rebar has its own advantages and is selected based on the specific requirements and conditions of the bridge project.

Q: How do steel rebars perform in fire-resistant constructions?: Steel rebars perform well in fire-resistant constructions due to their inherent properties. The use of steel rebars in these constructions helps to enhance the fire resistance of the structures. Steel is known for its high melting point and excellent heat transfer properties, making it a reliable material in fire situations. When exposed to high temperatures, steel rebars do not combust or release toxic fumes, which is crucial for ensuring the safety of occupants during a fire incident. Moreover, steel rebars have a low coefficient of thermal expansion, meaning they do not expand significantly when heated. This property helps to maintain the structural integrity of fire-resistant constructions, preventing potential structural failures during a fire. Additionally, steel rebars possess high tensile strength, which contributes to the overall performance of the structure under fire conditions. This strength allows the rebars to resist the forces generated by the expansion of concrete due to heat, thus minimizing the risk of cracking or spalling. Furthermore, steel rebars can be encased in fire-resistant materials such as concrete and fireproof coatings to provide an extra layer of protection against fire. This combination of steel and fire-resistant materials creates a robust system that effectively withstands high temperatures and prolongs the structural stability of the construction in the event of a fire. In conclusion, steel rebars play a vital role in fire-resistant constructions. Their high melting point, low thermal expansion, and excellent tensile strength make them a reliable choice for enhancing the fire resistance of structures. By incorporating steel rebars in construction designs, the safety and durability of buildings are significantly improved, providing occupants with valuable time to evacuate and minimizing the potential for structural damage during a fire incident.

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