High quality deformed bar 6mm-50mm BS4449

High quality deformed bar 6mm-50mm BS4449 System 1

High quality deformed bar 6mm-50mm BS4449

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 20000000 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: Can steel rebars be painted or coated for aesthetic purposes?: Yes, steel rebars can be painted or coated for aesthetic purposes. The paint or coating helps enhance the appearance of the rebars and can also provide additional protection against corrosion.

Q: What are the different types of steel rebars used in high-rise buildings?: High-rise buildings commonly utilize various types of steel rebars due to their strength and durability. These include: 1. Mild Steel Rebars, also known as black bars, are frequently used in construction. They possess a low carbon content and are easily weldable, making them ideal for reinforcing concrete structures. 2. High Strength Deformed (HSD) Steel Rebars have a higher tensile strength than mild steel rebars. They are created through cold twisting or stretching of mild steel bars, resulting in a deformed pattern on the surface that enhances bonding with concrete. 3. Corrosion-Resistant Steel Rebars are utilized in high-rise buildings located in coastal areas or regions with high humidity. They are coated with epoxy or galvanized to protect against moisture and corrosive elements, preventing rust and deterioration. 4. Carbon Steel Rebars, made of carbon steel, have a higher carbon content compared to mild steel rebars. They offer excellent tensile strength and are often employed in high-rise buildings that require additional reinforcement. 5. Stainless Steel Rebars are highly resistant to corrosion and can endure extreme weather conditions. They are commonly used in high-rise buildings that necessitate long-term durability and protection against rust. 6. TMT (Thermo-Mechanically Treated) Steel Rebars are manufactured by subjecting mild steel bars to a combination of heat treatment and mechanical deformation. This process imparts superior strength and ductility to the rebars, making them suitable for high-rise buildings where seismic resistance is crucial. Each type of steel rebar possesses distinct properties and advantages, enabling engineers and construction professionals to select the most suitable type based on the requirements and specifications of the high-rise building project.

Q: Can steel rebars be used in structures with high seismic activity?: Yes, steel rebars can be used in structures with high seismic activity. Steel is a resilient material that can withstand the forces generated during earthquakes. By reinforcing the concrete with steel rebars, the structure gains additional strength and enhances its ability to resist seismic forces. The use of steel rebars helps to improve the overall structural integrity and safety of the building in areas prone to earthquakes.

Q: How do steel rebars affect the flexural strength of reinforced concrete elements?: The flexural strength of reinforced concrete elements is greatly influenced by steel rebars. Rebars improve the ability of concrete elements to withstand bending or flexural forces. To provide tensile strength, high-strength steel rebars are embedded within the concrete. Concrete is strong when compressed but weak when subjected to tension. By incorporating rebars, the resulting composite material benefits from the concrete's high compressive strength and the steel's excellent tensile strength. When a flexural load is applied to a reinforced concrete element, such as a beam or slab, the rebars distribute the load across the section. This effectively resists the concrete's tendency to crack and fail under tension. Acting as reinforcements, the rebars resist the tensile forces that occur due to bending, thus increasing the structure's flexural strength. The flexural strength of reinforced concrete elements is greatly influenced by the size, spacing, and arrangement of the rebars. Proper design and placement of rebars ensure optimal resistance to anticipated bending forces. Factors such as the element's span, expected loads, and desired strength level must be carefully considered. In addition, the bond between the rebars and the concrete is crucial for transferring bending stresses. Sufficient concrete cover over the rebars protects them from corrosion, ensuring their durability and the integrity of the structure. Corrosion weakens the bond between steel rebars and the surrounding concrete, compromising the flexural strength of the reinforced element. In conclusion, steel rebars greatly enhance the flexural strength of reinforced concrete elements by providing necessary tensile strength to resist bending forces. Proper design, placement, and bonding of rebars are vital to ensuring the durability and structural integrity of reinforced concrete structures.

Q: Are there any special requirements for handling and storing steel rebars on construction sites?: Yes, there are special requirements for handling and storing steel rebars on construction sites. These requirements include ensuring that the rebars are stored in a dry and well-ventilated area to prevent rusting, keeping them away from moisture and chemicals, and stacking them on a flat surface to prevent bending or deformation. Additionally, it is important to handle rebars with proper lifting equipment and to ensure they are not overloaded during transportation.

Q: How are steel rebars used in foundation construction?: Steel rebars are used in foundation construction to provide reinforcement and increase the strength and durability of the concrete foundation. They are placed in specific patterns throughout the foundation to resist tension and prevent cracking or structural failure. The rebars help to distribute the load evenly, enhance structural stability, and ensure the foundation can withstand the pressure of the building or structure above it.

Q: Can steel rebars be used in underground parking garage construction?: Indeed, steel rebars find utility in the construction of underground parking garages. They are frequently employed in the reinforcement of concrete structures, including those built below the ground level. By endowing the concrete with strength and reinforcement, the rebars enable it to withstand the immense weight and pressure exerted by the structure above. Moreover, steel rebars possess remarkable resistance to corrosion—a quality of utmost significance in subterranean environments where moisture and other corrosive agents are likely to exist. In summary, steel rebars emerge as a dependable and widely preferred option for reinforcing concrete during the construction of underground parking garages.

Q: What is the role of steel rebars in maintaining structural integrity?: Steel rebars play a crucial role in maintaining structural integrity by reinforcing and strengthening concrete structures. They provide tensile strength to resist cracking, bending, and shearing forces, enhancing the overall stability and durability of buildings, bridges, and other infrastructure.

Q: Are rebar bars = rebar?: Generally speaking (not absolute circle) steel is usually made of plate steel as the main form of packing, while threads are usually packed in straight strips.Turn left and turn right |

Q: How much does a futures screw do?: How much is one hand steel futures: the emphasis in the futures market is the margin system, which is one of the differences between the stock markets. The so-called margin system, if the margin is 10%, then you only use the actual price of 10% of the price can be traded.With the delivery day approaching, the margin will gradually increase.Margin = hand screw thread steel per ton steel price * * tonnage margin ratio, if the steel price is now 1900, steel is a hand of 10 tons, the hand margin is 1900 yuan / ton *10%=1900 yuan *10 tons.

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