High quality deformed barhot rolled 10-50mm

High quality deformed barhot rolled 10-50mm System 1

High quality deformed barhot rolled 10-50mm

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 100000 m.t./month

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Deformed Bar Details:

Minimum Order Quantity:		Unit:	m.t.	Loading Port:
Supply Ability:		Payment Terms:		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:How do steel rebars affect the construction cost of high-rise buildings?: Steel rebars have a significant impact on the construction cost of high-rise buildings. These reinforced steel bars are essential for providing strength and stability to the structure, especially in high-rise buildings that face greater structural loads. Firstly, the cost of steel rebars themselves can be a substantial portion of the overall construction budget. The price of steel rebars is subject to market fluctuations, and as such, any increase in steel prices can directly impact the construction cost. Additionally, the quantity and quality of rebars required for a high-rise building are typically higher compared to low-rise structures, further contributing to the overall cost. Moreover, the installation of steel rebars involves skilled labor and specialized equipment, which adds to the construction cost. The process of reinforcing concrete with steel rebars requires careful planning, precise placement, and adherence to construction codes and safety standards. This necessitates the employment of experienced and qualified workers, resulting in higher labor costs. Furthermore, the use of steel rebars helps improve the durability and longevity of high-rise buildings. By providing reinforcement, rebars enhance the structural integrity of the building, making it more resistant to various forces such as earthquakes, wind, and vibrations. This, in turn, reduces the maintenance and repair costs over the building's lifespan, making the initial investment in steel rebars a worthwhile expense. Lastly, steel rebars contribute to the overall construction timeline and project schedule. As a critical component of the building's structure, the installation of rebars is typically time-consuming. Delays or errors in this process can result in project delays and additional costs. Therefore, proper planning, coordination, and supervision are essential to ensure the efficient and timely installation of rebars, minimizing any potential cost overruns. In conclusion, steel rebars play a crucial role in the construction of high-rise buildings, affecting the overall cost significantly. While the direct cost of rebars themselves, labor, and specialized equipment contribute to the construction expenses, their use ultimately enhances the building's strength, durability, and longevity. Therefore, considering the long-term benefits and the importance of structural integrity, the inclusion of steel rebars is necessary, despite their impact on the construction cost.

Q:The difference between wire and thread steel, wire and thread steel difference knowledge: Wire rods are generally round steel bars, the cross section is usually round, and the finished steel bars with smooth surface are represented by HPB. The wire rods are mainly used as reinforcing bars, welded structures or reprocessed raw materials. In the construction of wire rod, the dosage is also one of the varieties of steel.

Q:How do steel rebars improve the durability of concrete structures?: Concrete structures can be made more durable in various ways through the use of steel rebars. Firstly, steel rebars act as reinforcement, adding strength and stability to the structure. When combined with concrete, the high tensile strength of steel rebars helps resist cracking and prevent collapse under heavy loads or seismic activities. Secondly, steel rebars assist in controlling the formation and spread of cracks in concrete structures. Concrete is strong in compression but weak in tension, making it prone to cracking under tensile forces. By strategically placing steel rebars within the concrete, cracks are minimized and prevented from spreading, thereby improving the overall durability of the structure. Furthermore, steel rebars enhance the resistance of concrete structures against corrosion. The highly alkaline nature of concrete forms a protective layer around the steel rebars, preventing rust. This corrosion resistance ensures the rebars maintain their structural integrity over time, reducing the risk of deterioration and enhancing the longevity of the concrete structure. Moreover, steel rebars also increase the fire resistance of concrete structures. With their high melting point, steel rebars can withstand high temperatures, preventing the concrete from losing its structural integrity during a fire. This additional fire resistance ensures the stability and safety of the concrete structure in case of a fire, further enhancing its durability. In conclusion, the inclusion of steel rebars significantly enhances the durability of concrete structures by providing added strength, controlling cracks, improving corrosion resistance, and increasing fire resistance. These advantages contribute to the longevity and safety of concrete structures, making them more reliable and sustainable in the long term.

Q:How do steel rebars affect the overall crack resistance of concrete structures?: Steel rebars significantly improve the crack resistance of concrete structures. By reinforcing the concrete, rebars help distribute and absorb tensile forces, preventing the formation and propagation of cracks. This reinforcement enhances the overall strength and durability of the concrete, making the structure more resistant to cracking under various loads and environmental conditions.

Q:Are steel rebars resistant to extreme temperatures?: Yes, steel rebars are generally resistant to extreme temperatures. Steel has a high melting point and can withstand both high and low temperatures without significant structural changes or loss of strength. However, extremely high temperatures can cause some degradation in the rebar's mechanical properties over time.

Q:How are steel rebars classified based on their diameter?: Steel rebars are classified based on their diameter into different sizes, which usually range from 6 to 50 millimeters.

Q:Are steel rebars resistant to lightning strikes?: No, steel rebars are not inherently resistant to lightning strikes.

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:How are steel rebars fixed in concrete slabs?: Steel rebars are fixed in concrete slabs by being positioned and secured within the concrete mixture before it solidifies. The rebars are typically laid out in a predetermined pattern, and then tied together with wire or secured with metal clips to ensure they stay in place. This reinforcement helps to improve the strength and durability of the concrete slab, making it more resistant to cracking and structural failure.

Q:What are the recommended practices for welding steel rebars?: The recommended practices for welding steel rebars include ensuring proper surface preparation to remove any contaminants, selecting the appropriate welding process (such as shielded metal arc welding or gas metal arc welding), using the correct electrode or filler material, maintaining the appropriate welding parameters (current, voltage, travel speed), and performing regular inspections to ensure the quality and integrity of the welds. It is also important to follow safety guidelines, such as wearing appropriate protective equipment and working in a well-ventilated area.

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