Iron bar from China steel mill 6-50 mm for building
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 19863 m.t./month
OKorder Service Pledge
OKorder Financial Service
You Might Also Like
Specification
Common rebar is made of unfinished steel, making it susceptible to rusting. As rust takes up
greater volume than the iron or steel from which it was formed, it causes severe internal pressure
on the surrounding concrete, leading to cracking, spalling, and ultimately, structural failure. This is
a particular problem where the concrete is exposed to salt water, as in bridges built in areas where
salt is applied to roadways in winter, or in marine applications. Epoxy-coated rebar or stainless steel
rebar may be employed in these situations at greater initial expense, but significantly lower expense
over the service life of the project. Fiber-reinforced polymer rebar is now also being used in high-corrosion
environments
Our Advantage:
High quality steel products from 1 class mills in China
Reasonable price
Professionalism of the products
On-time delivery
Complete documents and certificates
Sincere service to meet our clients' requirements
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 | ||||||||||
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.
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: How do steel rebars contribute to the durability of a structure?
- Steel rebars contribute to the durability of a structure by providing reinforcement and strength to concrete. They help to prevent cracking and structural failure by absorbing and distributing tensile forces, enhancing the overall structural integrity and resilience. Additionally, steel rebars offer resistance to corrosion, ensuring the longevity and durability of the structure.
- Q: How do steel rebars contribute to the fire resistance of concrete?
- Steel rebars contribute to the fire resistance of concrete in several ways. Firstly, steel has a high melting point and is a non-combustible material, which means it does not burn or add fuel to a fire. This property of steel rebars helps prevent the spread of fire and provides structural stability to the concrete during a fire event. Additionally, steel rebars act as a reinforcement within the concrete, enhancing its overall strength and load-bearing capacity. This reinforcement helps to prevent the concrete from cracking or breaking apart under high temperatures caused by a fire. The presence of steel rebars also improves the ductility of the concrete, allowing it to deform and absorb energy during a fire, rather than shattering or collapsing suddenly. Moreover, the thermal conductivity of steel is higher than that of concrete, meaning it can conduct heat away from the fire zone more effectively. This helps to dissipate heat and prevent it from reaching critical levels that could compromise the structural integrity of the concrete. By absorbing and distributing heat, steel rebars help to slow down the rate of temperature rise within the concrete during a fire. In summary, steel rebars contribute to the fire resistance of concrete by providing structural stability, enhancing strength and load-bearing capacity, improving ductility, and dissipating heat. These properties make concrete structures reinforced with steel rebars more resilient and capable of withstanding fire events for a longer duration, thereby increasing the safety of occupants and reducing potential property damage.
- Q: Can steel rebars be used in the construction of swimming pools?
- Yes, steel rebars can be used in the construction of swimming pools. Steel rebars provide reinforcement and strength to the concrete used in swimming pool construction, ensuring its durability and longevity.
- Q: What are the common manufacturing processes for steel rebars?
- The common manufacturing processes for steel rebars involve several steps to ensure the production of high-quality and durable reinforcement bars. These processes typically include: 1. Melting: The first step in manufacturing steel rebars is melting the raw materials, which usually consist of iron ore, coal, and limestone, in a blast furnace. This process produces molten iron that is then further refined to remove impurities. 2. Casting: Once the molten iron is refined, it is poured into molds to create large billets or blooms. These molds are often called continuous casting machines, where the molten iron solidifies into a rectangular shape. 3. Rolling: The solidified billets or blooms are then heated and passed through rolling mills. The rolling process involves compressing the steel between a series of rollers to reduce its thickness and shape it into the desired dimensions of rebars. This process also helps improve the mechanical properties and eliminate any internal defects or impurities. 4. Quenching and Tempering: After the initial rolling process, the rebars may undergo quenching and tempering. Quenching involves rapidly cooling the steel bars by immersing them in water or oil. This step increases the hardness of the rebars, making them more resistant to deformation and wear. Tempering follows, which involves reheating the quenched bars to a specific temperature and then cooling them slowly. Tempering helps remove internal stresses and improves the toughness of the rebars. 5. Cutting and Coiling: Once the bars have been rolled and heat-treated, they are cut to the desired lengths using cutting machines. The cut rebars are then coiled into bundles or stacked for storage and transportation. 6. Surface Treatment: To enhance the corrosion resistance of rebars, manufacturers often apply a protective coating or surface treatment. This can involve hot-dip galvanizing, where the rebars are immersed in molten zinc to form a zinc coating, or epoxy coating, where a layer of epoxy resin is applied to the rebars. It is important to note that these manufacturing processes may vary depending on the specific requirements and standards set by different countries and industries. However, the aforementioned steps provide a general overview of the common processes involved in manufacturing steel rebars.
- Q: What is the process of galvanizing steel rebars?
- The process of galvanizing steel rebars involves immersing them in a bath of molten zinc to create a protective coating. This coating helps to prevent corrosion and extends the lifespan of the rebars. The steel rebars are first cleaned and prepared by removing any impurities or mill scale. Then, they are dipped into the zinc bath, where the zinc bonds with the surface of the steel through a metallurgical reaction. Afterward, the rebars are withdrawn from the bath, excess zinc is removed, and they are allowed to cool and solidify. The resulting galvanized rebars are ready to be used in construction projects, providing increased durability and resistance to environmental factors.
- Q: Are there any codes or regulations for the use of steel rebars in construction?
- Steel rebars in construction are subject to codes and regulations to ensure their proper use. Guidelines and standards are provided by organizations like the American Concrete Institute (ACI) in the United States. The ACI 318 Building Code Requirements for Structural Concrete outlines specific requirements for the size, placement, and quality of rebars. Similar regulations can be found in the widely adopted International Building Code (IBC), which governs construction practices in different jurisdictions. It includes provisions and references to standards that dictate the use of rebars in reinforced concrete structures. Different countries also have their own standards organizations, such as the British Standards Institution (BSI) in the United Kingdom. These organizations have their own codes and regulations for the use of rebars in construction. These codes and regulations are crucial for ensuring the safety and longevity of structures. They establish requirements for rebars' size, grade, and placement, as well as provide guidelines for designing, detailing, and constructing reinforced concrete elements. Adhering to these codes and regulations guarantees that structures can withstand anticipated loads and perform as intended.
- 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. The presence of rebars increases the stiffness and strength of the structure, thereby reducing excessive vibrations or oscillations. By effectively distributing and dissipating dynamic loads, rebars help to minimize the amplitude and frequency of vibrations, ensuring better structural stability and performance. Additionally, rebars also improve the overall ductility and energy absorption capacity of the structure, making it more resistant to vibrations caused by external forces or natural events such as earthquakes.
- Q: What are the guidelines for the proper anchoring of steel rebars in slabs?
- The proper anchoring of steel rebars in slabs is crucial to ensure the structural integrity and strength of the concrete slab. Here are some guidelines to follow: 1. Embedment depth: The rebars should be embedded in the concrete slab to a specific depth. The depth is typically determined based on the size and strength of the rebars and the load requirements of the slab. It is important to follow the recommended embedment depth to ensure adequate transfer of forces between the rebar and the concrete. 2. Spacing: The rebars should be spaced at regular intervals within the slab to provide uniform reinforcement. The spacing is determined based on the design requirements and the expected load on the slab. Following the recommended spacing guidelines will help distribute the load evenly and prevent cracking or failure of the slab. 3. Lap length: When multiple rebars need to be joined together, a lap splice is used. The lap length is the minimum length of overlap required to ensure proper transfer of forces between the rebars. It is important to follow the specified lap length to maintain the integrity of the reinforcement. 4. Edge distance: The rebars should be placed at a certain distance from the edges of the slab to prevent edge failure. The edge distance is determined based on factors such as the bar size, concrete cover, and design requirements. Maintaining the specified edge distance will help ensure the rebars are adequately anchored and prevent concrete spalling or cracking near the edges. 5. Concrete cover: The rebars should have a minimum concrete cover to protect them from corrosion and provide fire resistance. The concrete cover is the distance between the outer surface of the rebar and the nearest concrete surface. Following the recommended concrete cover guidelines will help maintain the durability and longevity of the steel rebars. 6. Proper placement and alignment: The rebars should be accurately placed and aligned within the slab to provide effective reinforcement. They should be positioned at the correct depth, spacing, and alignment as per the design specifications. Proper placement and alignment will ensure the rebars are securely anchored and contribute to the overall strength of the slab. It is important to note that these guidelines may vary depending on the specific project requirements, local building codes, and design standards. Therefore, it is recommended to consult with a qualified structural engineer or follow the guidelines provided by relevant authorities to ensure the proper anchoring of steel rebars in slabs.
- Q: Are steel rebars suitable for use in high-rise buildings?
- Yes, steel rebars are suitable for use in high-rise buildings. Steel rebars, also known as reinforcing bars, are commonly used in the construction industry to provide strength and stability to concrete structures. High-rise buildings require a strong and durable structural system to withstand various loads and forces such as wind, earthquakes, and the weight of the building itself. Steel rebars offer excellent tensile strength and ductility, making them ideal for reinforcing concrete in high-rise structures. One of the key advantages of steel rebars is their ability to resist tensile forces. Concrete is strong in compression but weak in tension, and steel rebars help counteract this weakness by providing the necessary tensile strength. This is crucial in high-rise buildings where the weight of the structure can cause tension on the concrete elements. By reinforcing the concrete with steel rebars, the overall structural integrity of the building is enhanced, ensuring its safety and stability. Additionally, steel rebars have superior ductility, which is the ability to deform under stress without fracturing. This property is essential in high-rise buildings as they are subject to dynamic loads and potential movements caused by factors like wind or seismic activity. Steel rebars can absorb and distribute these forces, reducing the risk of structural failure or collapse. Furthermore, steel rebars are readily available and cost-effective compared to alternative materials such as carbon fiber or fiberglass. They can be easily fabricated and installed in various shapes and sizes to fit the specific design requirements of high-rise buildings. However, it is important to note that the suitability of steel rebars in high-rise buildings also depends on proper design, installation, and regular maintenance. It is crucial to follow the relevant building codes and standards, ensure proper corrosion protection, and conduct regular inspections to detect any potential issues. By adhering to these practices, steel rebars can provide a reliable and durable reinforcement solution for high-rise buildings.
- Q: What is the effect of overloading on steel rebars?
- The effect of overloading on steel rebars is that it can lead to their deformation or failure. Overloading refers to subjecting the rebars to loads or forces that exceed their designed capacity. This can cause the rebars to bend, crack, or break, compromising the structural integrity of the reinforced concrete. It is crucial to ensure that rebars are not subjected to excessive loads to prevent potential safety hazards and maintain the overall strength and durability of the structure.
Send your message to us
Iron bar from China steel mill 6-50 mm for building
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 19863 m.t./month
OKorder Service Pledge
OKorder Financial Service
Similar products
Hot products
Hot Searches
Related keywords
