Steel deformed bar good quality for constraction
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 19452 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.
Steel rebar is bars of steel commonly used in construction, especially for reinforcing concrete structures such as driveways,
foundations, walls, and columns. These bars come in different sizes and strength grades, and can be smooth or may include
deformations that provide greater adhesion for concrete poured over the bars. When used in poured concrete, the bars are
typically placed in a grid pattern, the concrete poured over them, and then readjusted to maintain the proper shape while the
concrete sets. Steel rebar can be purchased from a number of manufacturers and is often found at construction retailers or large hardware stores.
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: What is the process of inspecting steel rebars before installation?
- The process of inspecting steel rebars before installation typically involves visual examination, measurement, and testing. The rebars are visually inspected for any visible defects such as cracks, rust, or bending. Measurements are taken to ensure the rebars meet the required dimensions, length, and diameter specified in the design. Additionally, non-destructive testing methods like ultrasonic testing or magnetic particle inspection may be performed to detect any hidden defects or irregularities. This thorough inspection process helps ensure the quality and integrity of the rebars before they are installed in construction projects.
- Q: How are steel rebars protected against alkali attacks?
- Various techniques and materials are used to protect steel rebars from alkali attacks. One commonly employed method involves the application of a protective coating onto the surface of the rebars. This coating acts as a barrier, preventing direct contact between the steel and the alkaline environment. Epoxy, zinc, and polyethylene are frequently utilized coatings that are designed to provide long-lasting protection against alkali attacks. Another approach to safeguarding rebars is the use of corrosion inhibitors. These inhibitors are added to the concrete mixture during construction and work by reducing the corrosive effects of alkali on the rebars. By forming a protective film on the steel surface, corrosion inhibitors prevent alkali from reaching the rebar and causing damage. In addition to coatings and corrosion inhibitors, the proper design of the concrete mix is also essential in protecting rebars from alkali attacks. By optimizing the composition of the concrete mix, engineers can decrease the alkalinity of the surrounding environment, thereby minimizing the risk of alkali attacks and subsequent corrosion. To ensure the continued protection of steel rebars against alkali attacks, regular maintenance and inspection of structures are crucial. It is essential to monitor the condition of the rebars and promptly address any signs of corrosion or damage, as this is vital to their long-term durability. In summary, the combination of protective coatings, corrosion inhibitors, proper concrete mix design, and regular maintenance are key factors in safeguarding steel rebars against alkali attacks. By implementing these measures, the lifespan and structural integrity of concrete structures can be significantly extended.
- Q: How are steel rebars stored and handled on construction sites?
- Steel rebars, also known as reinforcing bars, are an essential component in construction projects that require reinforced concrete structures. These rebars are typically stored and handled on construction sites in a systematic and organized manner to ensure their safety and efficient use. To begin with, steel rebars are often delivered to construction sites in bundles or bundles tied using wire or binding materials. Once the rebars are unloaded from the delivery truck, they are usually stored in designated areas known as rebar yards or cages. These areas are specifically designed to accommodate the length, size, and weight of the rebars, ensuring they are kept off the ground and protected from moisture, dirt, and any potential damage. In the rebar yard, rebars are commonly stacked horizontally and grouped according to their size, length, and grade. This arrangement facilitates easy identification and accessibility when needed for construction. Additionally, rebars are often separated by spacers or wooden blocks to prevent direct contact between them, reducing the risk of corrosion or tangling. When it comes to handling steel rebars, construction workers must prioritize safety and follow specific guidelines. Personal protective equipment, such as gloves and safety boots, should be worn to prevent injuries and ensure a secure grip on the rebars. In some cases, workers may use lifting equipment, such as cranes or forklifts, to move and transport rebars to different areas of the construction site. During transportation, rebars should be secured properly to prevent any shifting or falling, which could lead to accidents. Workers should also avoid dragging rebars on the ground, as this can cause damage to the bars or deform their shape, compromising their structural integrity. It is crucial to note that steel rebars should be inspected before use to ensure they meet the required specifications and are free from any defects. Rusty or damaged rebars should be discarded or repaired, depending on the severity of the issue. In summary, steel rebars are stored and handled on construction sites with utmost care and attention. Proper storage in designated rebar yards, correct grouping and separation, and adherence to safety guidelines during handling contribute to the successful and efficient use of steel rebars in construction projects.
- Q: What is the average tensile strength of steel rebars?
- Steel rebars typically have an average tensile strength ranging between 400 and 600 megapascals (MPa). It should be noted that the grade and type of steel used in the manufacturing process can cause variations in the specific tensile strength. Tensile strengths above 600 MPa can be achieved with higher grades of steel rebars. Moreover, the tensile strength of the rebars can also be influenced by factors like their diameter and surface condition.
- Q: What are the typical costs associated with using steel rebars in a construction project?
- The costs of utilizing steel rebars in a construction venture can differ based on various elements. These elements incorporate the size and type of the rebar, the amount required, the market conditions, and the project's location. Typically, the expense of steel rebars is calculated per ton or per linear foot. The cost per ton can fluctuate between $400 and $600, while the cost per linear foot can range from $0.75 to $1.50. It is important to note that these prices are approximate and subject to change based on market demand and availability. Furthermore, there might be additional expenses related to the acquisition and handling of steel rebars. These expenses can include transportation fees, storage costs, and the necessary equipment or tools required for installation. Other cost considerations may involve labor costs for cutting, bending, and placing the rebars, as well as any reinforcement detailing required according to the project's design specifications. These costs can vary depending on the project's complexity and the skill level of the laborers involved. It is also crucial to account for any potential wastage or scrap materials that may arise during the construction process. Proper planning and accurate measurements can help minimize these costs. In general, the typical costs connected with utilizing steel rebars in a construction project can be substantial, but they are necessary to ensure structural integrity and reinforcement. It is advisable to obtain quotes from multiple suppliers and contractors to ensure competitive pricing and carefully consider the project's specific requirements before finalizing the budget.
- Q: Can steel rebars be recycled after the demolition of a structure?
- Yes, steel rebars can be recycled after the demolition of a structure. Steel is a highly recyclable material and rebars are commonly collected and reused in the steel industry for the production of new steel products. Recycling steel rebars helps conserve natural resources and reduces the environmental impact of construction projects.
- Q: How do steel rebars affect the overall moisture resistance of a structure?
- Steel rebars can actually decrease the overall moisture resistance of a structure. This is because steel is prone to corrosion when it comes into contact with moisture, leading to rust formation. As the rebar rusts, it expands, causing the surrounding concrete to crack and further allowing moisture to penetrate the structure. Therefore, proper measures such as protective coatings or encasing the rebars in concrete are necessary to enhance the moisture resistance and durability of the structure.
- Q: What are the guidelines for proper splicing of steel rebars in concrete structures?
- The guidelines for proper splicing of steel rebars in concrete structures are essential to ensure the structural integrity and safety of the building. Here are some key guidelines to follow: 1. Length of Lap Splicing: The length of lap splicing refers to the overlapping distance between two rebars. It is crucial to follow the specified length mentioned in the design plans or structural codes. Typically, the minimum lap length for rebars is specified as a certain multiple of their diameter, such as 40 times the diameter for tension members and 25 times the diameter for compression members. 2. Cleanliness: Before splicing the rebars, the surfaces of the bars must be cleaned thoroughly to remove any rust, scale, dirt, or other contaminants. Proper cleaning ensures a strong bond between the bars during the splicing process. 3. Proper Alignment: The rebars being spliced should be properly aligned to maintain the continuity of the reinforcement. Misalignment can lead to stress concentration, weakening the overall structure. The bars should be aligned in a straight line, ensuring that they are parallel and evenly spaced. 4. Splice Type: There are various types of splice connections available, such as lap splicing, mechanical splicing, and welded splicing. The choice of splice type should be based on the specific project requirements, structural design, and local building codes. 5. Reinforcement Bar Preparation: The rebars need to be prepared before splicing by removing any scale, rust, or other contaminants. This can be done through brushing, grinding, or shot blasting. Additionally, the ends of the rebars should be clean and free of any deformations or irregularities. 6. Testing and Inspection: It is crucial to conduct regular testing and inspection to ensure the quality and integrity of the spliced rebars. Non-destructive testing methods, such as ultrasound or magnetic particle testing, can be employed to check the bond strength and ensure the splicing has been done correctly. 7. Adequate Cover: The spliced rebars must have adequate concrete cover to protect them from corrosion and fire. The thickness of concrete cover should comply with the local building codes and design specifications. 8. Proper Grouting: If mechanical splices are used, it is important to ensure proper grouting or filling of the splice sleeve or coupler with an approved non-shrink grout. This helps in achieving full load transfer and prevents any movement or slippage of the rebars. 9. Documentation: All splicing activities should be properly documented, including the type of splice used, lap lengths, inspection reports, and any deviations from the original design. This documentation is important for future reference, maintenance, and to ensure compliance with regulatory agencies. It is important to note that these guidelines are general recommendations, and specific project requirements and local building codes should always be followed for proper splicing of steel rebars in concrete structures. Consulting with a qualified structural engineer or following the advice of a reputable construction professional is crucial to ensure the highest standards of safety and compliance.
- Q: Does the grade three thread steel with "E" have the same information price as the ordinary three grade thread steel? Is there a big difference?
- Hello, with E thread steel is seismic rebar, without E is the common thread steel, general seismic thread with E was higher than that of ordinary steel prices, the price difference between 50 and 100 yuan, according to the specific market situation.
- Q: Are steel rebars resistant to chemical attacks?
- The resistance of steel rebars to chemical attacks may vary depending on the specific chemicals they encounter, although they are typically resistant. Steel rebars are primarily composed of carbon steel, renowned for its exceptional strength and durability. Carbon steel exhibits good resistance to numerous common chemicals, including water, mild acids, and alkalis. Nevertheless, certain chemicals can pose a threat to steel rebars by inducing corrosion or deterioration. For instance, powerful acids like sulfuric acid or hydrochloric acid can swiftly corrode steel rebars. Furthermore, exposure to chlorides, such as those present in saltwater or deicing salts, can heighten the risk of corrosion in steel rebars. To bolster the resistance of steel rebars against chemical attacks, several protective measures can be implemented. One prevalent approach involves the application of protective coatings, such as epoxy or zinc, onto the rebars. These coatings create a barrier between the steel and the chemicals, preventing direct contact and reducing the likelihood of corrosion. In conclusion, although steel rebars generally exhibit resistance to chemical attacks, their resistance can be influenced by the specific chemicals they encounter. By implementing appropriate protective measures, their resistance can be enhanced, thus prolonging their lifespan in environments where chemical exposure is a concern.
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Steel deformed bar good quality for constraction
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 19452 m.t./month
OKorder Service Pledge
OKorder Financial Service
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