HRB400, HRB500 Deformed Steel Rebars for Constrution
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 200000 m.t./month
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Specifications of HRB400, HRB500 Deformed Steel Rebars for Constrution:
Standard | GB UK USA | HRB335 HRB400 HRB500 G460B, B500A, B500B,B500C GR40, GR60 | |
Diameter | 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm | ||
Length | 6M, 9M,12M or as required | ||
Payment term | TT or L/C | ||
Trade terms | FOB, CFR, CIF | ||
Application | Building, construction | ||
Each bundle weight | 2-3MT, or as required | ||
Type | Hot rolled steel rebar | ||
Brand name | DRAGON | ||
Theoretical weight and section area of each diameter as below for your information:
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m (kg) | Pcs/ton |
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 | 2.00 | 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 |
50 | 1964 | 15.42 | 185.04 | 5.40 |
Deformed Steel Rebar in warehouse
Usage and Applications of HRB400, HRB500 Deformed Steel Rebars for Constrution:
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, HRB500 Deformed Steel Rebars for Constrution:
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.
Delivery Detail: within 45 days after received advanced payment or LC.
Label: to be specified by customer, generally, each bundle has 1-2 labels
Note:
1. Our products are produced according to national standard (GB), if not, supply according to national standards (GB) or agreement as customer required.
2. Other Grade and Standard Deformed Steel Bar we can supply:
Grade: GR40/GR60, G460B/B500A/B500B/B500C,BST500S
Standard: ASTM, BS, DIN
The Minimum Order Quantity of these products is high, and need to be confirmed.
3. We can not only supply Deformed Steel Bar; if you need anything about building materials, please contact us for further information.
4. Please send us your detail specifications when inquire. We will reply to you as soon as possible. We sincerely hope we can establish a long stable business relationship.
- Q:What is the role of steel rebars in bridge deck construction?
- Steel rebars play a crucial role in bridge deck construction. They are used to reinforce the concrete used in the construction of the bridge deck. The main function of rebars is to provide tensile strength to the concrete, as concrete is strong in compression but weak in tension. Bridge decks are subjected to various loads, including the weight of the vehicles, live loads, and environmental factors such as temperature changes and vibrations. These loads can cause the bridge deck to bend, crack, or even collapse if it lacks sufficient tensile strength. By incorporating steel rebars into the bridge deck, the tensile strength of the concrete is significantly enhanced. The rebars are strategically placed throughout the concrete structure to distribute the loads and resist tension, thereby preventing cracks and ensuring the overall structural integrity of the bridge. In addition to reinforcing the concrete, steel rebars also help to control cracks that may occur due to shrinkage or thermal expansion. When the concrete shrinks or expands, it can lead to the formation of cracks, which can compromise the durability and stability of the bridge. However, the inclusion of rebars helps to control and limit the size and extent of these cracks, ensuring the long-term performance of the bridge. Furthermore, steel rebars also aid in the transfer of loads between different components of the bridge, such as the bridge deck and the supporting piers or abutments. They help to create a continuous load path, ensuring that the loads are efficiently transmitted and distributed throughout the bridge structure. In summary, steel rebars are essential in bridge deck construction due to their ability to provide the necessary tensile strength to the concrete. They enhance the structural integrity of the bridge, control cracks, and facilitate the transfer of loads, ultimately ensuring the safety and longevity of the bridge.
- Q:What is the effect of chloride ions on steel rebars?
- The presence of chloride ions in the environment can have a detrimental effect on steel rebars. Chloride ions can penetrate the protective oxide layer on the surface of the steel and react with the iron atoms, leading to the formation of iron chloride compounds. These compounds are highly corrosive and can cause the rebars to rust and eventually weaken. This corrosion process, known as chloride-induced corrosion, can significantly reduce the structural integrity and lifespan of steel rebars, posing a risk to the overall stability of reinforced concrete structures. Therefore, it is crucial to protect steel rebars from chloride exposure through proper design, construction, and maintenance practices to ensure their long-term durability and safety.
- Q:How do steel rebars affect the overall construction cost of residential buildings?
- Steel rebars can significantly impact the overall construction cost of residential buildings. While rebars add strength and durability to the structure, they also contribute to increased material and labor expenses. The cost of purchasing and installing rebars, along with associated construction techniques and reinforcing requirements, can raise the overall construction cost. However, considering the long-term benefits of reinforced structures, the investment in steel rebars is justified as it enhances the safety and longevity of residential buildings.
- Q:What are the guidelines for proper anchoring of steel rebars in concrete structures?
- For the structural integrity and stability of the construction, it is crucial to properly anchor steel rebars in concrete structures. Here are the guidelines for proper anchoring: 1. Embedment length: To ensure sufficient bond strength, the rebars should be embedded in the concrete for a specific length. The required embedment length depends on factors such as rebar diameter, concrete strength, and load conditions, as specified in the design. 2. Lap length: When joining two rebars, a minimum lap length is necessary for reinforcement continuity. The lap length is determined by the rebar diameter, concrete strength, and structural design requirements. 3. Concrete cover: To safeguard the rebars from corrosion and fire, adequate concrete cover should be provided. The concrete cover is the distance between the outer surface of the rebars and the nearest concrete surface. It depends on factors like environmental conditions, fire resistance requirements, and durability considerations. 4. Spacing and arrangement: The rebars should be appropriately spaced and arranged according to the structural design requirements. The spacing is determined by the structural load and design specifications. Inadequate spacing can compromise the structural strength by providing insufficient reinforcement. 5. Proper positioning: Accurate positioning of rebars is essential, following the design drawings and specifications. They should be placed in the concrete formwork before pouring to achieve the desired structural behavior. Incorrect positioning can result in misalignment or insufficient concrete cover. 6. Mechanical anchorage: Mechanical anchorage devices such as rebar couplers, anchor bolts, or hooks can be utilized to enhance rebar anchoring in concrete structures. These devices provide additional reinforcement and prevent slippage or pull-out of the rebars under load. 7. Quality control: Regular inspection and quality control measures should be implemented to ensure compliance with the anchoring guidelines. This includes checking rebar dimensions and spacing, embedment depth, concrete cover, and ensuring proper installation techniques. It is important to note that these guidelines may vary based on project requirements, local building codes, and design specifications. Therefore, consulting a structural engineer or referring to relevant building codes and standards is essential for specific guidelines applicable to each construction project.
- Q:What is the effect of impurities on the corrosion resistance of steel rebars?
- The corrosion resistance of steel rebars can be significantly affected by impurities. Steel rebars consist primarily of iron and carbon, but varying amounts of impurities like sulfur, phosphorus, and silicon can also be present. One common impurity found in steel is sulfur. When sulfur reacts with water and oxygen, it forms sulfuric acid, which accelerates the corrosion process. This acid attack can cause rebars to deteriorate faster, reducing their overall strength and durability. Another impurity, phosphorus, can have a negative impact on the corrosion resistance of steel rebars. It can promote the formation of localized corrosion sites called pitting, which can lead to the development of rust and eventual structural damage. Although silicon is generally considered beneficial in steel production, excessive amounts can have adverse effects. Higher levels of silicon in rebars can result in the formation of a protective oxide layer. However, this layer can sometimes be porous, allowing corrosive agents to penetrate and cause corrosion. In conclusion, the presence of impurities in steel rebars can compromise their corrosion resistance. It is essential to ensure that construction steel meets specified standards and has minimal impurities. Additionally, proper maintenance and regular inspection of rebars are crucial to identify and address potential corrosion issues before they cause significant damage or structural failures.
- Q:Can steel rebars be used in industrial construction projects?
- Yes, steel rebars can be commonly used in industrial construction projects. They provide structural reinforcement to concrete structures, enhancing their strength and durability. Rebars are widely used in various industrial applications such as bridges, factories, power plants, and high-rise buildings to ensure the structural integrity and safety of these projects.
- Q:What is the maximum length of steel rebars available?
- The specific manufacturer and supplier are the determining factors for the maximum length of steel rebars available. Typically, steel rebars can be found in lengths that range from 6 meters (20 feet) to 18 meters (60 feet). These lengths are established based on various considerations, including transportation logistics, handling capacities, and industry standards within the construction sector. To ascertain the precise maximum length of steel rebars offered, it is crucial to seek guidance from the manufacturer or supplier.
- Q:Can steel rebars be used in cold weather conditions?
- Yes, steel rebars can be used in cold weather conditions. Steel has excellent cold weather performance and can maintain its structural integrity even in extremely low temperatures. However, it is important to ensure that proper construction practices are followed, such as protecting the rebars from moisture and using appropriate concrete curing methods to prevent freezing and cracking.
- Q:How are steel rebars used in pre-stressed concrete structures?
- Steel rebars are used in pre-stressed concrete structures to provide tensile strength and reinforcement. They are strategically placed in the concrete to counteract the forces that cause bending or cracking. By pre-stressing the rebars, the concrete structure becomes more resistant to external loads and can effectively bear heavy loads without deformation or failure.
- Q:Can steel rebars be used in composite construction systems?
- Yes, steel rebars can be used in composite construction systems. Steel rebars are commonly used as reinforcement in composite structures to enhance their strength and durability. The rebars are embedded within the composite materials, such as concrete or fiber-reinforced polymers, to provide additional tensile strength and structural integrity. This combination of materials allows for a more efficient and cost-effective construction system.
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HRB400, HRB500 Deformed Steel Rebars for Constrution
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 200000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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