Deformed Steel Bar, Steel,Hot Rolled Steel Structure,China Manufacture H500B 12M

Deformed Steel Bar, Steel,Hot Rolled Steel Structure,China Manufacture H500B 12M System 1

Deformed Steel Bar, Steel,Hot Rolled Steel Structure,China Manufacture H500B 12M

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 24 m.t.

Supply Capability:: 30000 m.t./month

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Packaging & Delivery

Packaging Detail:	in bundles or as customer's requirement
Delivery Detail:	Within 30days after receiving your deposit or copy of L/C

Specifications

Hot Rolled Steel Rebar HRB 500B
1.China direct supplier
2.Best service
3.Competitive price
4.Quantity assured

Product Description

Name	Steel,Hot Rolled Steel Structure,Deformed Steel Bar,China Manufacture H500B 12M
Standard	ASTM A615 /BS BS 4449 /GB HRB/ JIS G3112
Grade	HRB500B
Diameter	12mm-40mm
Length	6-12m
Technique	Low temperature hot-rolling reinforcing deformed steel rebar
Tolerance	As the standard or as your requirement
Application	Building, construction, road, bridge,etc
Certificated	BV
MOQ	500tons per size steel rebar
Packing details	Steel rebar packed in bundle or as your requirement
Delivery	Within 30 days after deposit
Payment	T/T or L/C

Chemical Composition

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
	Physics capability
	Yield Strength(N/cm2)		Tensile Strength(N/cm2)		Elongation (%)
	≥400		≥570		≥14

Theorectical weight

Diameter (MM)	Cross Sectional Area (MM2)	Theorectical Weight (KG/M)	Weight of 12M Bar (KG)	A Ton Contains 12M Bars (PCS)
6	28.27	0.222	2.664	375.38
8	50.27	0.395	4.74	210.97
10	78.54	0.617	7.404	135.06
12	113.1	0.888	10.656	93.84
14	153.9	1.21	14.52	68.87
16	201.1	1.58	18.96	52.74
18	254.5	2	24	41.67
20	314.2	2.47	29.64	33.74
22	380.1	2.98	35.76	27.96
25	490.9	3.85	46.2	21.65
28	615.8	4.83	57.96	17.25
32	804.2	6.31	75.72	13.21
36	1018	7.99	98.88	10.43
40	1257	9.87	118.44	8.44

Product Picture

Deformed Steel Bar, Steel,Hot Rolled Steel Structure,China Manufacture H500B 12M

Q: What is the corrosion resistance of steel rebars?: Steel rebars have excellent corrosion resistance due to the protective layer that forms on their surface. This layer, known as a passive film, is formed through the interaction of the steel with the surrounding environment. The passive film acts as a barrier, preventing oxygen and moisture from reaching the underlying steel and thus inhibiting the corrosion process. Various factors contribute to the corrosion resistance of steel rebars. For instance, the presence of alloying elements such as chromium, nickel, and molybdenum enhances the formation and stability of the passive film, making the rebars more resistant to corrosion. Additionally, the composition and microstructure of the steel rebars play a crucial role in determining their corrosion resistance. However, it is important to note that the corrosion resistance of steel rebars can be compromised under certain conditions. High levels of chlorides, such as those found in marine environments or de-icing salts, can accelerate the corrosion process and reduce the effectiveness of the passive film. Similarly, exposure to acidic or alkaline environments can also negatively impact the corrosion resistance of steel rebars. To mitigate the risk of corrosion, various protective measures can be employed. These include applying coatings or paints to the rebars, using corrosion inhibitors, or utilizing cathodic protection systems. Regular inspection, maintenance, and proper design and construction practices are also essential to ensure the long-term corrosion resistance of steel rebars in different applications. In conclusion, steel rebars possess excellent corrosion resistance due to the formation of a protective passive film. However, the corrosion resistance can be influenced by factors such as the environment, alloying elements, and microstructure. By implementing appropriate protective measures and maintenance practices, the corrosion resistance of steel rebars can be effectively maintained, ensuring their durability and structural integrity.

Q: What are the different types of steel rebars available for different applications?: There are several types of steel rebars available for different applications, including carbon steel rebars, epoxy-coated rebars, stainless steel rebars, and galvanized rebars. Each type has its own unique properties and benefits, making them suitable for various construction projects based on factors like corrosion resistance, strength requirements, and environmental conditions.

Q: Are steel rebars suitable for use in extreme weather conditions?: Yes, steel rebars are suitable for use in extreme weather conditions. Steel has excellent structural strength and durability, making it resistant to harsh environmental factors such as high winds, heavy rainfall, extreme temperatures, and even seismic activity. Additionally, steel rebars can be coated or treated to provide further protection against corrosion in areas with high humidity or exposure to saltwater. Overall, steel rebars are a reliable choice for ensuring the structural integrity of buildings and infrastructure in extreme weather conditions.

Q: Why is the earthing device forbidden to use thread steel instead of round steel as lap steel bar?: Steel is known as hot rolled ribbed bar. Ordinary hot rolled steel bars are made up of HRB and the minimum yield point of the brand.

Q: Can steel rebars be used in both residential and commercial construction?: Yes, steel rebars can be used in both residential and commercial construction. They are commonly used to reinforce concrete structures such as foundations, columns, beams, and slabs in both types of construction projects.

Q: What are the different methods for cutting steel rebars on-site?: There are several methods available for cutting steel rebars on-site, depending on the specific requirements and limitations of the project. Some of the common methods include: 1. Manual Cutting: This method involves using handheld manual tools such as rebar cutters or bolt cutters to cut through the steel rebars. It is suitable for smaller projects or areas where power tools may not be accessible. 2. Abrasive Cutting: Abrasive cutting, also known as grinding or cut-off saws, utilizes a high-speed rotating disc with abrasive particles to grind through the steel rebars. This method is effective for cutting rebars of various sizes and is commonly used in construction sites. 3. Torch Cutting: Using oxy-fuel or plasma torches, this method involves heating the steel rebars to a high temperature and then cutting through them using the intense heat. Torch cutting is suitable for thicker and larger rebars but requires caution and safety measures due to the open flame involved. 4. Shear Cutting: Shear cutting involves using hydraulic or mechanical shears to cut through the steel rebars. This method is efficient for cutting rebars quickly and accurately, especially for larger projects. 5. Hydraulic Cutting: Hydraulic cutters use hydraulic pumps to generate high pressure, which is then used to power the cutting blade. This method is commonly used for heavy-duty cutting tasks and can cut through thick rebars with ease. 6. Electric Cutting: Electric cutters, such as electric rebar cutters or portable band saws, are powered by electricity and provide a clean and precise cut. They are commonly used in construction sites where power is readily available. It is essential to consider the specific requirements of the project, including the size and thickness of the rebars, available power sources, and safety considerations, when selecting the appropriate method for cutting steel rebars on-site.

Q: Can steel rebars be used in seismic zones?: Yes, steel rebars can be used in seismic zones. In fact, they are often used to reinforce concrete structures in areas prone to earthquakes. The high tensile strength and ductility of steel rebars make them effective in absorbing and distributing the energy generated during seismic events, thereby enhancing the overall structural integrity and reducing the risk of collapse. Proper design and installation of steel rebars, in accordance with seismic codes and regulations, are crucial to ensure the safety and resilience of buildings in seismic zones.

Q: How are steel rebars protected against lightning strikes in buildings?: Steel rebars in buildings are typically protected against lightning strikes by installing a network of lightning rods or conductive elements on the structure. These rods or conductive elements are connected to a grounding system, which helps to safely disperse the electrical charge from a lightning strike and minimize the risk of damage to the steel rebars and the building itself.

Q: What is the difference between mild steel rebars and high-strength steel rebars?: Mild steel rebars and high-strength steel rebars are two different types of reinforcement bars used in construction. The key difference between these two lies in their composition and mechanical properties. Mild steel rebars, also known as low carbon steel rebars, are made from steel with a relatively low carbon content. Typically, they have a carbon content of about 0.15% to 0.30%. These rebars are commonly used in general construction projects where the concrete structure does not require high tensile strength. Mild steel rebars have a relatively lower yield strength and ultimate tensile strength compared to high-strength steel rebars. On the other hand, high-strength steel rebars, also known as high tensile strength rebars or HSD bars, are made from steel with a higher carbon content, typically ranging from 0.40% to 0.60%. These rebars are specially designed to provide superior strength, durability, and load-bearing capacity. High-strength steel rebars have a significantly higher yield strength and ultimate tensile strength compared to mild steel rebars. This makes them suitable for use in critical structures that require a high load-bearing capacity, such as bridges, high-rise buildings, and industrial structures. Another important difference between mild steel rebars and high-strength steel rebars is their ductility. Mild steel rebars have better ductility, meaning they can undergo more deformation before failing. This property allows mild steel rebars to absorb more energy during an earthquake or other dynamic loads, making them suitable for seismic zones. High-strength steel rebars, on the other hand, have lower ductility but higher stiffness and strength, making them more resistant to extreme loads and providing better structural integrity. It is important to note that while high-strength steel rebars offer superior strength and load-bearing capacity, they are also more expensive compared to mild steel rebars. Therefore, the choice between these two types of rebars depends on the specific requirements of the construction project, including the structural design, load conditions, and budget constraints.

Q: Can steel rebars be used in the construction of shopping malls?: Yes, steel rebars can be used in the construction of shopping malls. Steel rebars provide structural strength and reinforcement to concrete, making them suitable for use in various construction projects, including shopping malls.

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