Deformed steel bar 12mm of different grade
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 19000 m.t./month
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Specification
Rebar (short for reinforcing bar), also known as reinforcing steel, reinforcement steel, is a steel bar or mesh of steel wires used as a tension device in reinforced concrete and reinforced masonry structures to strengthen and hold the concrete in tension. Rebar's surface is often patterned to form a better bond with the concrete.
.Most grades of steel used in rebar cannot accept welding; such as, to adjacent steel plates or as means to bind single
pieces of rebar together. However, special grades of rebar steel and welding rods make welding by expert welders possible.
Features
1、Pure steel quality, stable chemical contents, small tolerance.
2、Constant Quality, good drawing performance.
3、High dimension accuracy degree, accuracy degree of Level C up to 80%, smooth surface, less scale, easy to be pickled.
4、Automatic bundling with 4 lines by Machine in tidy and good looks
5、Big high quality percentage, small coil percentage, and heavy coil weight for Hard Coil.
6、High sorbitizing percentage.
Product Description :
Chemical composition (%): | Steel | C | Si | Mn | P | S | Ceq | ||||
HRB335 |
0.25 |
0.80 |
1.60 |
0.045 |
0.045 | 0.52 | |||||
HRB400 | 0.54 | ||||||||||
HRB500 | 0.55 | ||||||||||
Mechanical properties | Steel | Rel/ MPa | Rm/ MPa | A/ % | Agt/ % | ||||||
≥ | |||||||||||
HRB335 | 335 | 455 | 17 |
7.5 | |||||||
HRB400 | 400 | 540 | 16 | ||||||||
HRB500 | 500 | 630 | 15 | ||||||||
Package: | Standard export packing or as customer's request | ||||||||||
Application: | Construction, building, bridge, road. ect | ||||||||||
Payment terms | 1).100% irrevocable L/C at sight. | ||||||||||
Delivery time | 15-30 days after receipt of L/C or deposit by T/T | ||||||||||
Packing:
In bundles, each bundle weight 3.5 tons. Load by container or by bulk verssel.
Our service
(1) We cooperate with famous factories with advanced equipment and well trained workers.
(2) We can provide factory price with trading company service.
(3) We continuously work on the improvement of our processes, guaranteeing consistently high standards
of quality to keep none compensation.
(4) We guarantee 24 hours response and 48 hours solution providing service.
(5) We accept small order quantity before formal cooperation.
(6) We deliver the agreed quality at the agreed time, reacting to changes in customer wishes in a flexible way.
(7) Due to our volume and selling power, we have excellent freight rates with shipping lines.
(8) We strive to always be fair and honest in our dealings with customers.
(9) We strive to work together with customers to achieve much more than we can achieve alone.
(10) Through our passion and commitment we aim to be a market leader in all our key markets. To maintain
our position as market leader we must continue to add value in all that we do.
FAQ:
1.Q: What's your MOQ(minimum order quantity)?
A: One full container, mixed acceptable .
2. Q: What's your packing methods?
A: Packed in bundle or bulk ..
3. Q: How can I buy CNBM products in my country?
A:Please send us an inquiry or email ,we will reply to you if there is distributor in your country
4. Q: Can we visit your factory?
A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
5. Q: How long does it take to get the product if i place an order?
A:With the process of your requirements,we will pack and deliver in 3-7 days. If it is by sea shipment,it will take 15-45 days depending on different locations
- Q: What is the process of installing steel rebars in concrete?
- The process of installing steel rebars in concrete involves several steps. Firstly, the rebars are cut to the required length and shape according to the design specifications. Then, the concrete formwork is prepared, ensuring it is clean and properly aligned. Next, the rebars are carefully placed within the formwork, ensuring proper spacing and positioning as per structural requirements. The rebars are securely fastened using wire ties or mechanical connectors to maintain their position during the concrete pouring process. Finally, the concrete is poured into the formwork, encasing the rebars and forming a strong bond between them. The concrete is left to cure, allowing it to harden and create a reinforced structure with the rebars providing additional strength and stability.
- Q: What is the typical weight of a steel rebar?
- The typical weight of a steel rebar can vary depending on its diameter and length. However, the most commonly used steel rebar in construction projects is typically 20 feet long and ranges in diameter from 1/2 inch to 1 inch. For this standard size, the weight can range from around 7.5 pounds to 24 pounds per linear foot. Therefore, a 20-foot steel rebar can weigh anywhere between approximately 150 pounds to 480 pounds. It is important to note that different countries may have different weight standards for steel rebars, so it is always advisable to consult local specifications and standards for accurate information.
- Q: What is the role of steel rebars in bridge deck construction?
- The construction of bridge decks relies heavily on steel rebars, which play a vital role in reinforcing the concrete. Their main purpose is to enhance the tensile strength of the concrete since it is naturally strong in compression but weak in tension. Bridge decks are subject to various loads, including the weight of vehicles, live loads, temperature changes, and vibrations from the environment. Insufficient tensile strength in the bridge deck can result in bending, cracking, or even collapse under these loads. By incorporating steel rebars into the concrete structure of the bridge deck, the tensile strength is significantly improved. These rebars are strategically placed throughout the concrete to effectively distribute loads and resist tension, preventing cracks and ensuring the overall structural integrity of the bridge. Aside from reinforcing the concrete, steel rebars also serve to control cracks caused by shrinkage or thermal expansion. When the concrete shrinks or expands, cracks can form, compromising the durability and stability of the bridge. However, the inclusion of rebars helps to regulate and limit the size and extent of these cracks, ensuring the long-term performance of the bridge. Moreover, steel rebars also assist in transferring loads between different components of the bridge, such as the bridge deck and the supporting piers or abutments. They facilitate the creation of a continuous load path, guaranteeing efficient transmission and distribution of loads throughout the bridge structure. To summarize, the presence of steel rebars is crucial in bridge deck construction as they provide the necessary tensile strength to the concrete. They enhance the structural integrity of the bridge, control cracks, and enable efficient load transfer, ultimately ensuring the safety and longevity of the bridge.
- Q: How do steel rebars prevent corrosion in concrete structures?
- Steel rebars prevent corrosion in concrete structures through the process of passivation. Passivation is the formation of a thin, protective oxide layer on the surface of the steel rebar, which acts as a barrier against corrosion-causing agents. When steel rebars are embedded in concrete, the alkaline environment created by the cement paste helps in passivating the steel. The high pH level of the concrete creates a protective layer of iron oxide (rust) on the rebar's surface, preventing the steel from coming into contact with moisture and oxygen. Furthermore, the dense and impermeable nature of well-constructed concrete limits the movement of water and other corrosive substances towards the steel rebars. This reduces the likelihood of corrosion initiation and its progression. In addition to the alkaline environment and concrete's impermeability, steel rebars are also typically coated with a layer of epoxy or zinc to provide an extra layer of protection. These coatings further enhance the resistance of the steel to corrosion, particularly in aggressive environments such as marine or chloride-rich conditions. Regular maintenance and preventive measures, such as ensuring proper concrete cover over the rebars and avoiding the presence of excessive moisture or chloride ions, also play a crucial role in preventing corrosion in concrete structures.
- Q: What are the common applications of steel rebars in construction?
- Steel rebars are commonly used in construction for reinforcing concrete structures such as buildings, bridges, and highways. They provide strength and stability to the concrete, enhancing its load-bearing capacity and resistance to tension and bending forces. Additionally, steel rebars help prevent cracks and structural failures in the concrete, ensuring the longevity and durability of the construction project.
- Q: What is the impact strength of steel rebars?
- Steel rebars' impact strength can vary based on factors like steel composition, manufacturing process, and rebar grade. However, steel rebars are generally renowned for their high impact strength, enabling them to endure significant forces and impacts without fracturing or breaking. In construction projects, steel rebars are frequently employed to reinforce concrete structures and provide added strength. Their exceptional impact strength enables them to withstand heavy loads, vibrations, and even extreme weather conditions. The impact strength of steel rebars is vital in guaranteeing the structural integrity and safety of buildings and infrastructure. They play a pivotal role in preventing building collapse under stress, for instance, during earthquakes or when subjected to heavy loads. Furthermore, steel rebars can absorb and distribute impact energy throughout the structure, minimizing the likelihood of localized damage. In summary, the impact strength of steel rebars is a crucial factor in determining their suitability for various construction applications. Engineers and architects carefully evaluate this property when selecting the appropriate grade and size of steel rebars to ensure the durability and safety of their designed structures.
- Q: How do steel rebars affect the overall vibration control of a structure?
- Steel rebars can significantly enhance the overall vibration control of a structure. By reinforcing the concrete, rebars increase the structural stiffness and strength, reducing the amplitude of vibrations. They also help distribute and dissipate energy from dynamic loads, thus minimizing the risk of structural failure and enhancing the overall stability. Additionally, rebars can improve the damping characteristics of a structure, reducing the resonant frequencies and attenuating vibrations. Overall, the presence of steel rebars in a structure plays a crucial role in enhancing its vibration control capabilities.
- Q: Are steel rebars resistant to chemical attacks?
- Steel rebars are generally resistant to chemical attacks, but their resistance can vary depending on the specific chemicals they are exposed to. Steel rebars are primarily made of carbon steel, which is known for its high strength and durability. Carbon steel has good resistance to many common chemicals, such as water, mild acids, and alkalis. However, certain chemicals can pose a threat to steel rebars and cause corrosion or deterioration. For example, strong acids, such as sulfuric acid or hydrochloric acid, can rapidly corrode steel rebars. Additionally, exposure to chlorides, such as those found in saltwater or deicing salts, can increase the risk of corrosion in steel rebars. To enhance the resistance of steel rebars to chemical attacks, various protective measures can be taken. One common method is to apply a protective coating, such as epoxy or zinc, on the rebars. This coating acts as a barrier between the steel and the chemicals, preventing direct contact and reducing the risk of corrosion. In summary, while steel rebars are generally resistant to chemical attacks, their resistance can be influenced by the specific chemicals they are exposed to. Proper protective measures can be taken to enhance their resistance and prolong their lifespan in environments where chemical exposure is a concern.
- Q: How are steel rebars manufactured and processed?
- Steel rebars are manufactured and processed through a series of steps. Firstly, the raw materials like steel billets or scrap metal are melted in a furnace to create molten steel. This molten steel is then poured into molds of desired shapes and sizes to form billets. These billets are further processed through a rolling mill, where they are heated and passed through a series of rollers to shape them into long, thin bars. The bars are then cooled, straightened, and cut into desired lengths. To enhance their strength, rebars are often subjected to heat treatment or alloying processes. Finally, they undergo surface treatment, such as corrosion-resistant coatings, to protect against rusting. The finished steel rebars are then ready for use in construction and reinforcing concrete structures.
- Q: Can steel rebars be used in combination with other reinforcement materials?
- Yes, steel rebars can be used in combination with other reinforcement materials such as fibers, wire mesh, or carbon fiber sheets to enhance the overall strength and durability of concrete structures. This combination of reinforcement materials provides a more effective solution for reinforcing concrete and can meet specific project requirements.
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Deformed steel bar 12mm of different grade
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 19000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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