50mm*15.42kg/m Deformed steel bar for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
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Product Description:
OKorder is offering 50mm*15.42kg/m deformed steel bar for construction at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
50mm*15.42kg/m Deformed steel bar are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
Product Advantages:
OKorder's Deformed steel bar are durable, strong, and resist corrosion.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
1.Detailed Product Description:
1.High Quality and the best service ;
2..Cheapest Price ;
3.many lines for making ;
4.verious size of Product.
2.Specifications:
Deformed bars/reinforced bars:
1.Material:GB--HRB400/HRB500 ; BS4449--460B/500B;
ASTM A615-Gr40/60 ; AS4671--500N/500E;
JISG3112--SD400 ; DIN488-1--BST500S;
KS-SD390.
2.Standard.:ASTM/JIS/DIN/BS/GB/KS.
3.Diameter:6-50mm.
The Specification of Deformed Steel Bars
| THEORETICAL WEIGHT INDEX | ||
| SIZE(mm) | CUT AREA(cm2) | THEORETICAL WEIGHT(kg/m) |
| 8 | 0.503 | 0.395 |
| 9 | 0.636 | 0.5 |
| 10 | 0.79 | 0.62 |
| 12 | 1.13 | 0.89 |
| 14 | 1.54 | 1.21 |
| 16 | 2.01 | 1.58 |
| 18 | 2.55 | 2 |
| 20 | 3.14 | 2.47 |
| 22 | 3.8 | 2.98 |
| 25 | 4.91 | 3.85 |
| 28 | 6.16 | 4.83 |
| 32 | 8.04 | 6.31 |
| Grade | Technical data of the original chemical composition(%) | ||||||||
| C | Mn | Si | S | P | B | ||||
| HRB335 | ≤ 0.25 | ≤ 1.60 | ≤ 0.80 | ≤ 0.045 | ≤ 0.045 | >0.0008 | |||
| Physics capability | |||||||||
| Yield Strength(N/cm 2 ) | Tensile Strength(N/cm 2 ) | Elongation (%) | |||||||
| ≥ 335 | ≥ 490 | ≥ 16 | |||||||
| Grade | Technical data of the original chemical composition (%) | |||||
| C | Mn | Si | S | P | V | |
| HRB400 | ≤0.25 | ≤1.60 | ≤ 0.80 | ≤ 0.045 | ≤ 0.045 | 0.04-0.12 |
| Physics capability | ||||||
| Yield Strength ( N/cm 2 ) | Tensile Strength ( N/cm 2 ) | Elongation (%) | ||||
| ≥ 400 | ≥570 | ≥ 14 | ||||
FAQ:
Q1: How do we guarantee the quality of our products?
A1: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q2: Can stainless steel rust?
A2: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.
- Q: What is the effect of steel rebars on the thermal conductivity of concrete?
- The thermal conductivity of concrete is greatly affected by the presence of steel rebars. Steel, being an excellent conductor of heat, allows thermal energy to easily pass through its structure. When steel rebars are embedded in concrete, they create a pathway for heat to flow within the material. The thermal conductivity of steel rebars can have both positive and negative consequences on the overall thermal performance of concrete structures. On one hand, it can improve heat transfer within the structure, enabling more efficient heating or cooling. This is advantageous in scenarios where thermal conductivity is desired, such as in building designs that require active temperature control. However, the presence of steel rebars can also result in increased heat loss or gain based on the environmental conditions. When there is a temperature difference between the inside and outside of the structure, the steel rebars can act as thermal bridges, making it easier for heat to escape or enter the building. As a consequence, higher energy consumption is needed for heating or cooling purposes. To address these potential issues, additional insulation measures can be implemented to decrease the thermal bridging effect caused by steel rebars. This may involve using thermal break materials or coatings, or adopting insulation techniques like adding foam or other insulating materials around the rebars. In conclusion, steel rebars significantly influence the thermal conductivity of concrete. While they can enhance heat transfer within the structure, they can also lead to increased heat loss or gain. Appropriate insulation measures should be taken into account to minimize the negative effects of thermal bridging caused by steel rebars.
- Q: Can steel rebars be used in the construction of residential communities?
- Yes, steel rebars can be used in the construction of residential communities. Steel rebars provide strength and durability to reinforced concrete structures, making them suitable for a wide range of construction projects, including residential buildings. The use of steel rebars helps ensure the structural integrity and longevity of the buildings, making them a reliable choice for residential communities.
- Q: Are there any limitations on using steel rebars in cold climates?
- Using steel rebars in cold climates comes with certain limitations. The primary concern is the possibility of corrosion caused by moisture, salt, and de-icing chemicals commonly applied to roads and bridges during winter. Exposure to these elements can lead to rusting and gradual weakening of steel rebars, compromising the concrete's structural integrity. To address this issue, there are several measures that can be taken. One common approach is the use of epoxy-coated rebars, which offer protection against moisture and chemicals. Another option is to utilize stainless steel rebars, as they have high resistance to corrosion. However, it is worth noting that these alternatives can be more expensive compared to traditional steel rebars. Additionally, the construction process in cold climates presents its own set of challenges. Low temperatures result in slower curing and strengthening of concrete, which can affect the overall project timeline. To ensure proper curing, special precautions such as heating the concrete or using accelerators may be necessary. To guarantee compliance and safety, it is crucial to consult local building codes and regulations that are specific to cold climates. Seeking guidance from engineering professionals experienced in cold weather construction practices can provide valuable insights and recommendations to address the limitations associated with using steel rebars in these conditions.
- Q: How are steel rebars affected by extreme weather conditions?
- Steel rebars are highly durable and resistant to extreme weather conditions. They can withstand high temperatures, excessive moisture, and even freezing temperatures without significant damage or corrosion. However, prolonged exposure to extreme weather conditions, such as constant moisture or salty environments, can cause rust and corrosion on the surface of the rebars, which can weaken their structural integrity over time. Therefore, proper maintenance and protective coatings are necessary to ensure the long-term effectiveness of steel rebars in extreme weather conditions.
- Q: What are the guidelines for the proper spacing of steel rebars in slabs-on-grade?
- To ensure the structural integrity and longevity of the concrete slab, it is crucial to follow guidelines for spacing steel rebars in slabs-on-grade. Here are the general guidelines to be followed: 1. Concrete cover: The first consideration is the distance between the rebar surface and the concrete edge, known as the concrete cover. Local building codes or engineering standards typically specify the minimum cover requirements, which must be strictly adhered to. This cover protects the rebar from corrosion and provides fire resistance. 2. Rebar spacing: The spacing between rebars depends on the load requirements and slab dimensions. A closer spacing results in a stronger slab. However, it is necessary to maintain proper spacing to allow free flow of concrete around the rebar during pouring and ensure proper consolidation. Generally, the spacing should not exceed three times the slab thickness or 18 inches, whichever is smaller. 3. Rebar size and diameter: The selection of rebar size and diameter depends on the load requirements and design specifications. Larger loads require larger diameter rebars with increased spacing. Common rebar sizes for slabs-on-grade range from #3 (3/8 inch diameter) to #8 (1 inch diameter). 4. Rebar placement: Proper placement of rebars within the slab is critical. The rebars should be positioned at the center of the slab's thickness to ensure even load distribution. Moreover, they should be securely tied or supported to prevent displacement during concrete placement and consolidation. 5. Joint reinforcement: Construction joints are often included in slabs-on-grade to accommodate expansion and contraction. Proper reinforcement of these joints is essential for maintaining structural integrity. Joint reinforcement, such as dowel bars or tie bars, should be placed perpendicular to the joint and adequately anchored on both sides. It is important to note that these guidelines provide a general overview, and specific project requirements may vary. Consulting a structural engineer or following local building codes and industry standards is essential to ensure compliance and optimize the design of steel rebars in slabs-on-grade.
- Q: Can steel rebars be used in the construction of shopping malls and commercial buildings?
- Yes, steel rebars can be used in the construction of shopping malls and commercial buildings. Steel rebars provide strength and durability to the structure, making them an essential component in reinforced concrete construction. They help in reinforcing the concrete and enhancing the overall structural integrity of the building, ensuring its safety and longevity.
- Q: Are there any specific guidelines for handling and storing steel rebars?
- Yes, there are specific guidelines for handling and storing steel rebars to ensure their quality and safety. Some of the key guidelines include: 1. Proper handling: Steel rebars should be handled with care to avoid any damage or bending. They should be lifted using appropriate equipment and not dragged or thrown. 2. Storage conditions: Rebars should be stored in a clean, dry, and well-ventilated area to prevent rusting and corrosion. They should be kept off the ground and away from moisture, chemicals, and direct sunlight. 3. Stacking: Rebars should be stacked in a way that ensures stability and prevents any deformation. They should be placed on flat surfaces and stacked in layers with wooden or rubber separators to avoid direct contact between rebars. 4. Labelling: Each bundle of rebars should be properly labeled with relevant information such as size, grade, and quantity for easy identification and inventory management. 5. Inspection: Regular inspections should be conducted to check for any signs of damage, rust, or corrosion. Damaged or corroded rebars should be discarded or repaired before use. Adhering to these guidelines is crucial to maintain the quality and integrity of steel rebars, ensuring their suitability for construction purposes.
- Q: Are steel rebars suitable for reinforcement in theme parks and amusement centers?
- Yes, steel rebars are suitable for reinforcement in theme parks and amusement centers. Steel rebars offer high strength and durability, making them ideal for heavily loaded structures and areas with high foot traffic. They can effectively enhance the structural integrity and ensure the safety of buildings and rides in theme parks and amusement centers.
- Q: What are the common mistakes to avoid when handling and storing steel rebars?
- When handling and storing steel rebars, it is important to avoid certain common mistakes to ensure their quality and longevity. Here are some mistakes that should be avoided: 1. Poor storage conditions: Storing steel rebars in damp or wet areas can lead to corrosion and rust. It is crucial to store them in a dry and well-ventilated space to prevent moisture accumulation. 2. Insufficient support: When stacking rebars, it is important to have proper support to prevent bending or deformation. Inadequate support can lead to rebar damage and compromise their structural integrity. 3. Improper lifting techniques: When handling rebars, it is essential to use proper lifting equipment and techniques. Using hooks or chains directly on the rebars can cause damage and weaken them. It is recommended to use lifting devices specifically designed for rebar handling. 4. Overloading: Avoid overloading storage racks or platforms with excessive weight. Overloading can cause structural failure and potentially injure workers. Always follow the manufacturer's guidelines for maximum weight capacity. 5. Lack of protection: Rebars should be protected from exposure to moisture, dirt, and other contaminants. Proper wrapping with plastic or waterproof covers can help prevent corrosion and maintain their quality. 6. Improper transportation: During transportation, care should be taken to secure the rebars properly to prevent movement or damage. Using appropriate restraints and padding can help prevent any potential accidents or rebar displacement. 7. Mixing different grades: Avoid mixing rebars of different grades together as they have varying strength and performance characteristics. Mixing different grades can compromise the overall structural integrity of the construction project. 8. Ignoring quality control: It is important to conduct regular quality checks on the rebars to ensure they meet the required specifications. Ignoring quality control can result in the use of substandard rebars, which can compromise the safety and durability of the structure. By avoiding these common mistakes, construction professionals can ensure the proper handling and storage of steel rebars, leading to safer and more durable structures.
- Q: What are the common quality tests performed on steel rebars?
- There are several common quality tests that are performed on steel rebars to ensure their strength and durability. These tests are essential to ensure that the rebars meet the required standards and can withstand the intended load and environmental conditions. One of the most common quality tests performed on steel rebars is the tensile test. This test measures the maximum amount of tensile stress that a rebar can withstand before it breaks. It helps determine the tensile strength and ductility of the steel rebars. Another important quality test is the bend test. In this test, a rebar is bent at a specified angle without breaking. The bend test evaluates the flexibility and resistance to cracking or fracturing of the rebars. It is particularly crucial for rebars used in construction projects where bending or shaping is required. The rebars are also subjected to a test called the chemical composition analysis. This test determines the percentage of various elements present in the steel rebars, such as carbon, manganese, phosphorus, sulfur, and others. The chemical composition analysis ensures that the rebars meet the specified requirements and do not contain any impurities that could compromise their strength or corrosion resistance. Corrosion resistance is another important property of steel rebars, especially in environments with high moisture or chemical exposure. To assess this, rebars undergo a corrosion test. This test involves subjecting the rebars to a corrosive environment, such as salt spray or acidic solutions, and evaluating their resistance to corrosion. This helps determine the rebars' suitability for specific applications and helps prevent premature degradation. Lastly, dimensional tests are performed to ensure that the rebars meet the required dimensions and tolerances. These tests include measuring the length, diameter, and weight of the rebars. Deviations from the specified dimensions can affect the rebars' structural integrity and compatibility with other construction materials. In conclusion, the common quality tests performed on steel rebars include tensile testing, bend testing, chemical composition analysis, corrosion resistance testing, and dimensional testing. These tests are crucial in ensuring the strength, durability, and suitability of steel rebars for various construction applications.
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50mm*15.42kg/m Deformed steel bar for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 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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