Iron Rods For Construction in different grade
- Ref Price:
-
- Loading Port:
- Guangzhou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 18000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Specification
Standard:
ASTM,AISI,EN,JIS
Technique:
Hot Rolled
Shape:
Round
Surface Treatment:
Dry
Steel Grade:
HRB400,RHB335
Certification:
ISO,SGS,BV
Thickness:
6-38mm
Length:
6-12
Net Weight:
1-2mt
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 | ||||||||||
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 are steel rebars protected during storage and transportation?
- Steel rebars are typically protected during storage and transportation by applying a coating of corrosion-resistant materials, such as epoxy or zinc. Additionally, rebars are often bundled together and securely packaged to prevent damage or shifting during transit.
- Q: What's the difference between rebar and thread steel?
- Different strength. The design strength of round steel (HPB235) is 210MPa; the strength of thread steel is higher than that of round bar; the design strength of HRB335 is 300MPa; the design strength of HRB400 is 360MPa.
- Q: What are the advantages of using fiber-reinforced polymer (FRP) rebars over steel rebars?
- There are several advantages of using fiber-reinforced polymer (FRP) rebars over traditional steel rebars in construction projects: 1. Corrosion resistance: One of the main advantages of FRP rebars is their excellent resistance to corrosion. Unlike steel rebars, which are prone to rust and deterioration when exposed to moisture and chemicals, FRP rebars do not corrode. This property significantly increases the durability and lifespan of structures, particularly in harsh environmental conditions. 2. Lightweight: FRP rebars are significantly lighter than steel rebars, making them easier to handle, transport, and install. This lightweight characteristic also reduces the overall dead load of a structure, allowing for more efficient design and construction. 3. High strength-to-weight ratio: Despite being lightweight, FRP rebars have a high strength-to-weight ratio, meaning they can carry heavy loads while still maintaining their structural integrity. This property makes FRP rebars ideal for applications where weight reduction is desired without compromising on strength, such as in bridge decks and seismic reinforcement. 4. Non-magnetic and non-conductive: Unlike steel rebars, FRP rebars are non-magnetic and non-conductive. This feature is particularly advantageous in structures that require non-magnetic properties, such as MRI rooms in hospitals, or in situations where electrical conductivity needs to be minimized, such as in power plants or near electrical equipment. 5. Design flexibility: FRP rebars can be manufactured in various shapes and sizes, offering design flexibility and customization options to meet specific project requirements. They can be easily cut and shaped on-site, allowing for easy integration into complex geometries and curved structures. 6. Thermal compatibility: FRP rebars have a low coefficient of thermal expansion, which means they expand and contract at a similar rate to the surrounding concrete. This thermal compatibility minimizes the risk of cracking and ensures better long-term performance of the structure, particularly in areas with extreme temperature variations. 7. Excellent durability: FRP rebars exhibit excellent long-term durability, even in aggressive environments. They are resistant to alkalis, chemicals, and UV radiation, ensuring their performance and structural integrity over an extended period. 8. Environmental friendliness: FRP rebars are considered more environmentally friendly than steel rebars due to their minimal carbon footprint. They require less energy to produce and generate fewer greenhouse gas emissions during manufacturing. Additionally, FRP rebars are non-toxic and do not pose a threat to the environment during their lifespan or at the end of their service life. Overall, the advantages of using FRP rebars over steel rebars make them a viable alternative in various construction applications, offering improved durability, lightweight design, corrosion resistance, and enhanced structural performance.
- 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: Can steel rebars be used in structures with high chloride exposure?
- No, steel rebars should not be used in structures with high chloride exposure as they are susceptible to corrosion in such environments.
- Q: How can steel rebars be recycled after their service life?
- Steel rebars can be recycled after their service life by first removing them from the concrete structures. The rebars are then collected and taken to a recycling facility where they undergo a process called steel rebar recycling. In this process, the rebars are cleaned, sorted, and shredded into small pieces. These pieces are then melted down in a furnace and transformed into new steel products or rebars, which can be used for various construction purposes. Recycling steel rebars not only conserves natural resources but also helps to reduce waste and minimize environmental impact.
- Q: What is the role of steel rebars in preventing cracks in concrete structures?
- The role of steel rebars in preventing cracks in concrete structures is to provide reinforcement and increase the structural integrity of the concrete. By adding steel rebars, the concrete is better able to resist tensile forces that can cause cracking. The rebars act as a skeleton, distributing and absorbing the stresses placed on the concrete, thereby minimizing the formation of cracks and enhancing the overall durability of the structure.
- Q: Are steel rebars suitable for use in aggressive environments?
- Indeed suitable for use in aggressive environments are steel rebars. Commonly utilized in construction projects, particularly in reinforced concrete structures, steel rebars possess high tensile strength and durability. However, when exposed to corrosive elements like moisture, chloride ions, and chemicals, corrosion may occur, leading to weakened rebars and compromised structural integrity of the concrete. To counteract this issue, protective materials such as epoxy or zinc are often applied to steel rebars, creating a barrier against corrosion. Moreover, stainless steel rebars, with their superior corrosion resistance properties, are also employed in aggressive environments. In conclusion, although steel rebars generally prove suitable for aggressive environments, it is essential to consider specific conditions and implement appropriate protective measures to prevent corrosion and uphold the longevity of the reinforced concrete structure.
- Q: Are steel rebars suitable for reinforcement in schools and educational buildings?
- Yes, steel rebars are suitable for reinforcement in schools and educational buildings. Steel rebars provide excellent strength and durability, making them ideal for reinforcing concrete structures in high-traffic areas like schools. They help enhance the structural integrity and safety of these buildings, ensuring they can withstand heavy loads and potential seismic activity.
- Q: What are the guidelines for the proper anchoring of steel rebars in columns?
- To guarantee the structural integrity and safety of reinforced concrete structures, it is crucial to adhere to guidelines regarding the appropriate anchoring of steel rebars in columns. These guidelines are typically established based on industry standards and codes, such as the American Concrete Institute (ACI) Building Code Requirements for Structural Concrete (ACI 318). 1. Lap Length: For sufficient bond strength, rebars must overlap by a minimum distance known as the lap length. This length is determined considering factors like rebar diameter, grade, concrete strength, and design requirements. To calculate the required lap length, specific formulas and tables provided by ACI 318 are used. 2. Embedment Length: The embedment length refers to the section of the rebar embedded within the concrete column. Achieving adequate embedment is essential to effectively transfer applied loads. The embedment length is determined based on factors such as rebar diameter, grade, and compressive strength of concrete. 3. Development Length: The development length is the minimum length of rebar needed beyond the critical section to fully develop its tensile or compressive strength. This ensures the rebar can withstand applied loads and avoid premature failure. ACI 318 provides formulas to calculate the development length considering rebar diameter, grade, concrete strength, and design requirements. 4. Concrete Cover: Concrete cover refers to the thickness of concrete between the rebar's external surface and the column's outer surface. It provides protection against corrosion, fire, and environmental factors. The required concrete cover is determined by considering factors like rebar diameter, grade, exposure conditions, and design requirements. ACI 318 provides minimum cover requirements for different rebar sizes and exposure conditions. 5. Spacing and Positioning: Proper spacing and positioning of rebars within the column are crucial to ensure uniform load distribution and effective reinforcement. The spacing is determined based on column dimensions, rebar diameter, and design requirements. Additionally, rebars should be properly aligned and centered within the column to achieve the intended structural strength. 6. Mechanical Anchorage: In certain cases, mechanical anchorage devices like rebar couplers or headed bars are employed to enhance rebar anchoring in columns. These devices improve load transfer and prevent rebar slippage. The selection and installation of mechanical anchorage should adhere to the manufacturer's recommendations and relevant standards. 7. Quality Control and Inspection: Implementing proper quality control and inspection procedures during rebar installation in columns is crucial. This involves verifying dimensions, lap lengths, embedment lengths, development lengths, concrete cover, spacing, and positioning of the rebars. Regular inspections and non-destructive testing techniques such as ultrasonic or radiographic testing can be utilized to ensure compliance with guidelines and identify any defects or deviations. It is important to note that these guidelines may vary based on specific design requirements, local building codes, and structural considerations. Therefore, it is recommended to consult relevant standards and seek professional advice from structural engineers or experts to ensure proper anchoring of steel rebars in columns.
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Iron Rods For Construction in different grade
- Ref Price:
-
- Loading Port:
- Guangzhou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 18000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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