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: Can steel rebars be used in seawater desalination plants?: Yes, steel rebars can be used in seawater desalination plants. However, it is important to consider the potential effects of corrosion due to the high salt content in seawater. To mitigate this risk, various measures can be taken. One common approach is to use corrosion-resistant alloys, such as stainless steel rebars or epoxy-coated rebars, to protect against the corrosive effects of saltwater. Additionally, proper maintenance and monitoring can help prevent and identify any corrosion issues. Overall, while steel rebars can be used in seawater desalination plants, it is crucial to implement corrosion protection measures to ensure their longevity and structural integrity.

Q: Are there any health and safety concerns related to steel rebars?: Yes, there are several health and safety concerns related to steel rebars. Firstly, handling and lifting steel rebars can pose risks of musculoskeletal injuries such as strains, sprains, and back injuries. These rebars are heavy and often require manual handling or the use of heavy machinery, which can increase the risk of accidents and injuries. Secondly, steel rebars are often coated with chemicals to prevent corrosion. These coatings can contain hazardous substances such as toxic metals or volatile organic compounds (VOCs). Exposure to these chemicals through inhaling fumes or direct contact with the skin can lead to health issues, including respiratory problems, skin irritation, and chemical burns. Furthermore, steel rebars are commonly used in construction sites, which can be hazardous environments. Workers may face risks of falling rebars, tripping over them, or being struck by them. Additionally, improper installation or positioning of steel rebars can compromise the structural integrity of the construction, potentially leading to accidents or collapses. To mitigate these health and safety concerns, it is important to provide appropriate training and personal protective equipment (PPE) to workers handling steel rebars. Employers should also enforce proper lifting techniques and safe work practices to prevent musculoskeletal injuries. Adequate ventilation systems and the use of respiratory protection can help in reducing exposure to hazardous chemicals. Lastly, regular inspections and adherence to construction regulations can ensure the proper placement and installation of steel rebars, minimizing the risk of accidents and structural failures.

Q: Are there any environmental benefits to using steel rebars?: Yes, there are several environmental benefits to using steel rebars in construction. Here are some of the key advantages: 1. Recyclability: Steel rebars are highly recyclable, meaning they can be reused or repurposed after their lifespan in a structure ends. This reduces the demand for new steel production and the associated energy consumption and greenhouse gas emissions. In fact, steel is one of the most recycled materials globally, with a recycling rate of around 90%. 2. Durability: Steel rebars are known for their strength and durability, which allows structures to last longer. This reduces the need for frequent replacements or repairs, resulting in less waste generation and the conservation of resources. 3. Energy efficiency: Steel production has become increasingly energy-efficient over the years, with advancements in technology and processes. This means that the environmental impact of steel production has been decreasing, making it a more sustainable choice compared to other materials. 4. Reduced deforestation: Steel rebars offer an alternative to timber reinforcement, which is often sourced from deforestation practices. By using steel rebars instead, we can help reduce the pressure on forests and protect their valuable ecosystem services. 5. Reduced waste: Steel rebars can be prefabricated and cut to specific lengths, minimizing waste on construction sites. Additionally, the scrap generated during the fabrication process can be recycled, further reducing waste generation. Overall, using steel rebars in construction offers various environmental benefits, including recyclability, durability, energy efficiency, reduced deforestation, and waste reduction. These advantages contribute to a more sustainable and environmentally-friendly construction industry.

Q: What is the recommended spacing between inclined steel rebars in slabs?: The recommended spacing between inclined steel rebars in slabs varies depending on the specific design requirements and load conditions. However, in general, a spacing of around 2 to 3 times the diameter of the rebar is often recommended to ensure proper reinforcement and structural integrity. It is important to consult with structural engineers or refer to local building codes for precise guidelines applicable to the specific construction project.

Q: Can steel rebars be used in the construction of schools and universities?: Yes, steel rebars can be used in the construction of schools and universities. Steel rebars are commonly used as reinforcement in concrete structures to provide strength and durability. They help to enhance the structural integrity of the buildings, ensuring they can withstand the loads and stresses imposed on them. Steel rebars are widely used in various construction projects, including schools and universities, to ensure the safety and longevity of the structures.

Q: How are steel rebars transported to the construction site?: Various methods are employed for the transportation of steel rebars, also known as reinforcing bars, to construction sites. One commonly used approach involves the use of trucks. The rebars are loaded onto flatbed trucks or trailers and firmly secured with straps or chains to prevent any shifting during transit. These trucks are specially designed to withstand the weight and length of the rebars, boasting robust frames and loading mechanisms. Another method is rail transportation. Steel rebars can be loaded onto rail cars, either on flatcars or in specialized containers, and transported to the construction site. This method proves particularly advantageous for long-distance transportation, as it offers a more cost-effective and efficient solution for large quantities of rebars. For construction projects situated near waterways, the transportation of rebars can also be accomplished by sea or barge. The rebars are loaded onto ships or barges and properly secured to prevent any damage or movement during transit. This method is commonly employed for projects necessitating substantial quantities of rebars or for construction sites located on islands or in coastal areas. Upon arrival at the construction site, cranes or forklifts are typically utilized to unload the steel rebars. These rebars are then either stored in designated areas or immediately employed for reinforcement in the construction process. It is of utmost importance to handle the transportation of rebars with caution, as this ensures their structural integrity and guards against potential accidents or damage during transit.

Q: How do steel rebars prevent cracks in concrete structures?: Steel rebars prevent cracks in concrete structures by providing reinforcement and increasing the tensile strength of the concrete. When concrete is subjected to external forces or loads, such as pressure or temperature changes, it tends to crack due to its weak tensile strength. However, by embedding steel rebars within the concrete, these bars withstand the tensile forces and distribute them throughout the structure. This reinforcement helps to prevent or minimize cracks by adding strength and stability to the concrete, making it more durable and resistant to cracking.

Q: How are steel rebars classified based on their shape?: Steel rebars are classified based on their shape into different categories such as plain round bars, deformed bars, and ribbed bars.

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: What are the different sizes of steel rebars available?: The different sizes of steel rebars available typically range from #3 (3/8 inch diameter) to #18 (2 1/4 inch diameter), with various lengths and shapes also being offered.

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