HRB400 HRB 500 steel rebar Good quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 19863 m.t./month
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Specification
Deformed Steel bar is a common steel reinforcing bar, used in reinforced concrete and reinforced masonry structures.
It is formed from mild steel, and is given ribs for better frictional adhesion to the concrete. The Deformed Steel bar is
an iron rod , a weldable plain reinforcing steel bar, and can be used as well for steel meshes.
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:Can steel rebars be used in structures with extreme temperature variations?
- Steel rebars can generally be used in structures with extreme temperature variations. Steel has a high melting point and is known for its durability and strength, making it suitable for various construction applications. However, it is important to consider a few factors when using steel rebars in such structures. Firstly, steel has a coefficient of thermal expansion, which means it expands and contracts with temperature changes. This expansion and contraction can potentially cause stress and strain on the structure if not properly accounted for. To address this issue, engineers and architects use various design techniques, such as providing expansion joints or allowing for thermal movement, to accommodate the steel's thermal expansion and prevent damage. Secondly, extreme temperature variations can affect the mechanical properties of steel. When exposed to high temperatures, steel can lose its strength and stiffness, which might compromise the structural integrity. Conversely, low temperatures can lead to embrittlement, making the steel more susceptible to cracking or fracturing. Therefore, it is crucial to choose the appropriate grade and quality of steel rebars that are specifically designed to withstand the expected temperature variations. Furthermore, the type of structure and its intended use should be considered. For instance, in structures where extreme temperature variations are anticipated, such as bridges or buildings in regions with hot summers and cold winters, the design should incorporate thermal insulation or other measures to prevent excessive heat transfer or thermal stress accumulation. In conclusion, steel rebars can be used in structures with extreme temperature variations, but proper considerations must be taken. By accounting for thermal expansion, selecting suitable steel grades, and incorporating design techniques to accommodate temperature changes, the structural integrity and performance can be maintained, ensuring the safety and longevity of the construction.
- Q:What are steel rebars made of?
- Steel rebars are made of carbon steel, which is an alloy of iron and carbon.
- Q:Why do stirrups have thread stirrups and round bars? When are they used?
- Hello, you say the problem is not what time, but the design requirements in that place, accept the stirrup size number with different encryption and so on, have a certain standard, the general drawings above have detailed instructions
- Q:What is the recommended maximum length of cantilevered steel rebars?
- The recommended maximum length of cantilevered steel rebars can vary depending on factors such as the specific application, load requirements, and design standards. It is important to consult structural engineers or relevant building codes to determine the appropriate maximum length for a specific project.
- Q:How do steel rebars enhance the bond between concrete and reinforcement?
- The bond between concrete and reinforcement is improved by steel rebars through various mechanisms. Firstly, the inclusion of rebars in concrete enhances the mechanical interlock between the two materials. As concrete surrounds the rebars, it fills the spaces between the steel bars, resulting in a strong bond once it solidifies. This mechanical interlock effectively prevents the separation of concrete and reinforcement, particularly when subjected to tensile loads. Secondly, steel rebars augment the bond by offering additional surface area for adhesion. The rough texture of the rebars allows the concrete to firmly grip the steel surface, leading to a stronger bond. This adhesion is further enhanced by the formation of corrosion products on the rebars over time, creating an even rougher surface and increasing the bond strength between the concrete and reinforcement. Thirdly, rebars serve as load transfer devices in concrete structures. When external forces act on the structure, the rebars distribute and transfer these forces to the surrounding concrete. This load transfer mechanism significantly improves the overall structural integrity and performance of the concrete element. Furthermore, steel rebars also reinforce the bond between concrete and reinforcement by their ability to resist deformation. Under tensile loads, the rebars elongate and absorb the stress, preventing the concrete from developing cracks. This prevents the formation of cracks that could compromise the bond between the two materials. To summarize, steel rebars enhance the bond between concrete and reinforcement by providing mechanical interlock, increased surface area for adhesion, load transfer capabilities, and resistance to deformation. Together, these factors contribute to the overall strength, durability, and performance of reinforced concrete structures.
- Q:What is the difference between carbon steel and stainless steel rebars?
- Both carbon steel and stainless steel rebars are utilized in construction as types of steel reinforcement. However, they differ significantly in their composition and properties. Carbon steel rebars consist of a combination of iron and carbon, with trace amounts of other elements like manganese and copper. The carbon content in these rebars typically ranges from 0.15% to 0.60%. They possess strength, durability, and cost-effectiveness. Their tensile strength is crucial for reinforcing concrete structures. Nevertheless, they are prone to corrosion if not adequately protected, especially in environments with high moisture or exposure to chemicals. On the contrary, stainless steel rebars are created by combining iron, chromium, nickel, and other alloying elements. The chromium content in stainless steel usually exceeds 10.5%, leading to the formation of a protective layer of chromium oxide on the rebar's surface, which prevents corrosion. Stainless steel rebars exhibit exceptional corrosion resistance, even in harsh environments with high humidity, saltwater, or exposure to chemicals. Additionally, they are highly durable and possess high tensile strength, similar to carbon steel rebars. The primary distinction between carbon steel and stainless steel rebars lies in their corrosion resistance. Carbon steel rebars necessitate the application of protective coatings like epoxy or galvanization to prevent corrosion. In contrast, stainless steel rebars possess inherent corrosion resistance due to the presence of the chromium oxide layer, eliminating the need for additional coatings. Another differing factor is the cost. Carbon steel rebars are generally more affordable compared to stainless steel rebars. However, the total project cost should also consider the long-term maintenance expenses associated with corrosion protection measures required for carbon steel rebars. To summarize, carbon steel rebars are strong and cost-effective but require supplementary corrosion protection, while stainless steel rebars exhibit excellent corrosion resistance and durability at a higher cost. The selection between the two depends on the specific project requirements, budget constraints, and anticipated environmental conditions.
- Q:How are steel rebars cut and shaped on-site?
- Steel rebars are commonly cut and shaped on-site using various tools and techniques. The process typically involves the following steps: 1. Measurement: The rebars are first measured according to the required length and shape. This is done by using measuring tapes, rulers, or other measuring devices. 2. Marking: Once the measurements are taken, the rebars are marked at the appropriate points using chalk or a marker. These marks serve as guidelines for cutting and shaping the rebars accurately. 3. Cutting: The rebars are then cut along the marked lines using mechanical or hydraulic cutting tools. Some commonly used tools for cutting rebars include rebar cutters, angle grinders with cutting discs, or portable band saws. These tools are specifically designed to handle the high strength of steel rebars and ensure clean and precise cuts. 4. Shaping: After the rebars are cut to the desired lengths, they can be further shaped as needed. This shaping process involves bending the rebars into specific angles or curves. Manual rebar benders or electric rebar bending machines are commonly used for this purpose. These tools allow for accurate shaping of the rebars, ensuring they fit the required structural design. 5. Tying: Once the rebars are cut and shaped, they are often tied together using wire or rebar tying machines. This tying process helps to secure the rebars in place and maintain the desired positioning within the concrete structure. It is important to note that the cutting and shaping of rebars on-site require skilled workers who are trained in handling the tools and following proper safety precautions. These workers must also have a good understanding of the structural requirements and be able to interpret construction drawings to accurately cut and shape the rebars according to the project specifications.
- Q:How do steel rebars affect the overall strength of concrete structures?
- Steel rebars significantly contribute to the overall strength and durability of concrete structures. They are commonly used as reinforcement in concrete to enhance its tensile strength, which is the ability to withstand pulling or stretching forces. Concrete on its own is strong in compression but weak in tension. When external forces like bending or stretching are applied to the concrete, it tends to crack and fail. This is where steel rebars play a crucial role. By adding rebars to the concrete, the tensile strength of the structure is greatly improved. The rebars act as a strong skeleton within the concrete, providing resistance against tensile forces. When the concrete is subjected to tension, the rebars take up the load and distribute it evenly, preventing cracks from forming and enhancing the overall strength of the structure. This reinforcement also helps to limit the propagation of cracks, ensuring that the structure remains intact and stable even under substantial loads or adverse conditions. Moreover, steel rebars also enhance the structural integrity of concrete structures by improving their resistance to bending, shearing, and torsional forces. They increase the stiffness and stiffness modulus of the concrete, making it more resistant to deformation and enhancing its load carrying capacity. In addition to improving the structural strength, steel rebars also play a vital role in preventing corrosion of the concrete. They are made of corrosion-resistant materials, such as stainless steel or galvanized steel, which protects the concrete from moisture and other corrosive elements. This ensures the longevity and durability of the concrete structure. In conclusion, steel rebars significantly enhance the overall strength and durability of concrete structures by improving their tensile strength, resistance to bending and shearing forces, and preventing corrosion. They provide the necessary reinforcement to make the concrete capable of withstanding external forces, ensuring the safety and longevity of the structure.
- Q:Are steel rebars suitable for reinforcement in residential buildings?
- Yes, steel rebars are suitable for reinforcement in residential buildings. Steel rebars provide strength, durability, and resistance to corrosion, making them an ideal choice for reinforcing concrete structures in residential buildings. They help to enhance the overall structural integrity and safety of the building, ensuring it can withstand various loads and forces over time.
- Q:What is the role of steel rebars in industrial flooring construction?
- The role of steel rebars in industrial flooring construction is to provide reinforcement and strength to the concrete. Steel rebars are embedded within the concrete slab to enhance its load-bearing capacity and resistance to cracking or breaking under heavy loads. They help distribute the weight evenly across the flooring, preventing structural failures and ensuring durability and longevity of the industrial flooring.
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Send your message to us
HRB400 HRB 500 steel rebar Good quality
- 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
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