GB Standard HRB400 Steel Deformed Bar 18mm/20mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t
- Supply Capability:
- 20000 m.t/month
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Steel Deformed Bar of GB Standard HRB400 Steel Deformed Bar 18mm/20mm
Description:
-Standard: GB
-Material: HRB400
-Specification:
| Diameter(mm) | Section Area(mm2) | Mass(Kg/m) | Length(m) |
| 18 | 254.5 | 2.00 | 9, 12 or as customs' request |
| 20 | 314.2 | 2.47 | 9, 12 or as customs' request |
Chemical Composition(%) of GB Standard HRB400 Steel Deformed Bar 18mm/20mm:
| C | Mn | Si | S | P | V |
| ≤0.25 | ≤1.60 | ≤0.08 | ≤0.045 | ≤0.045 | 0.04-0.12 |
Mechanical Properties of GB Standard HRB400 Steel Deformed Bar 18mm/20mm:
Yield Strength (N/cm²) | Tensile Strength (N/cm²) | Elongation (%) |
≥400 | ≥570 | ≥14 |
Usage and Applications of GB Standard HRB400 Steel Deformed Bar 18mm/20mm:
Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger.
Packaging & Delivery of GB Standard HRB400 Steel Deformed Bar 18mm/20mm:
Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.
Each bundle weight: 2-3MT, or as required
Payment term: TT or L/C
Delivery Detail: within 45 days after received advanced payment or LC.
Label: to be specified by customer, generally, each bundle has 1-2 labels
Trade terms: FOB, CFR, CIF
Images of GB Standard HRB400 Steel Deformed Bar 18mm/20mm:
*If you would like to get our price, please inform us the size, standard/material and quantity. Thank you very much for your attention.
- Q:How do steel rebars contribute to the overall stability of a bridge deck?
- Steel rebars contribute to the overall stability of a bridge deck by providing reinforcement and increasing its strength and load-bearing capacity. They help to distribute the load evenly across the deck, preventing it from sagging or collapsing under heavy traffic or other external forces. The rebars also enhance the bridge's resistance to cracking, bending, and shearing, ensuring its long-term durability and structural integrity.
- Q:What is the impact of steel rebars on the overall sustainability of a structure?
- Steel rebars have a significant impact on the overall sustainability of a structure. By reinforcing concrete and improving its strength, steel rebars help to increase the lifespan of the structure, reducing the need for frequent repairs or replacements. This not only enhances the long-term durability of the building but also reduces the consumption of resources and energy required for construction. Additionally, steel rebars can be recycled, making them an environmentally friendly choice. Overall, the use of steel rebars in a structure enhances its sustainability by promoting longevity, reducing waste, and minimizing environmental impact.
- Q:How to recognize high quality thread steel
- When we buy rebar, we should not only look at the size of the thread steel, but also use the vernier caliper to measure whether the size meets the requirements. A lot of times, inferior thread steel through the flat flat way to deceive the buyer's vision, so from the steel reinforcement to observe the end of the steel is flat oval, meet the requirements of the thread steel is basically round.
- Q:What is the typical lifespan of steel rebars in a non-corrosive environment?
- In a non-corrosive environment, steel rebars can typically have a lifespan of several decades or even more than 50 years. The absence of corrosion allows the rebars to maintain their structural integrity and strength over an extended period of time.
- Q:What is the difference between hot-rolled and cold-worked steel rebars?
- Hot-rolled steel rebars are produced by heating the steel billet to high temperatures and then passing it through rollers to shape and form it. This process results in rebars with a rough surface and varying dimensions. On the other hand, cold-worked steel rebars are produced by subjecting the hot-rolled rebars to a process called cold working, which involves further shaping and sizing by passing them through dies or rollers at room temperature. This process results in rebars with a smoother surface, tighter dimensional tolerances, and increased strength.
- Q:What is the process of reinforcing existing concrete structures with steel rebars?
- Enhancing the strength and durability of existing concrete structures with steel rebars involves a series of steps. To begin, a thorough assessment of the concrete structure is conducted to determine its condition and identify areas in need of reinforcement. This involves inspecting the concrete for cracks, signs of degradation, or any other structural issues. Once the areas requiring reinforcement are identified, the next step is surface preparation. This involves cleaning the concrete surface to remove any loose debris, dirt, or contaminants that could hinder the bonding of the rebars with the concrete. Various methods, such as pressure washing or sandblasting, can be used for this purpose. Following surface preparation, the rebars are strategically placed within the concrete structure. The positioning and spacing of the rebars are crucial to ensure optimal reinforcement and structural integrity. This is typically accomplished by drilling holes or creating channels in the concrete where the rebars will be placed. Afterward, the rebars are inserted into the holes or channels, ensuring proper alignment and securing. The rebars are typically cut to the required length and bent into the desired shape to meet the specific reinforcement needs of the structure. Once the rebars are in place, they are anchored or secured to the existing concrete by various means. This can be achieved through the use of epoxy adhesive, mechanical anchors, or embedding the rebars into fresh concrete poured around them. Finally, the concrete is restored to its original condition, covering the rebars and creating a smooth and even surface. This may involve patching up any holes or channels created during the reinforcement process and finishing the surface to match the surrounding concrete. In conclusion, the process of reinforcing existing concrete structures with steel rebars necessitates careful planning, proper surface preparation, precise placement of rebars, secure anchoring, and appropriate finishing to achieve a strengthened and long-lasting structure.
- Q:How to judge the quality of thread steel?
- Sampling sample. Do tensile, bending, and impact tests.
- Q:Do steel rebars affect the weight of a structure?
- Steel rebars indeed have an impact on the weight of a structure. These rebars, also known as reinforcing bars, are utilized to strengthen concrete structures. When concrete is poured, these rebars are incorporated to enhance its strength and provide support. As steel is significantly denser than concrete, the inclusion of rebars leads to an overall increase in the structure's weight. Nevertheless, the weight increment is relatively minor when compared to the significant benefits obtained in terms of structural integrity and load-bearing capacity. The rebars aid in evenly distributing the load across the structure, thereby enhancing its resistance to bending, cracking, and collapsing under heavy loads. Hence, although rebars contribute some weight to a structure, the advantages they offer in terms of safety and durability far surpass the slight increase in weight.
- Q:What are the common quality tests performed on steel rebars?
- The common quality tests performed on steel rebars include visual inspection, dimensional measurement, tensile strength testing, bending test, weldability test, and corrosion resistance test.
- Q:Are there any environmental benefits to using steel rebars?
- There are numerous environmental advantages to utilizing steel rebars in construction. Here are some of the main benefits: 1. Recyclability: Steel rebars possess a high degree of recyclability, enabling them to be reused or repurposed once their lifespan in a structure comes to an end. This diminishes the need for new steel production and the associated energy consumption and greenhouse gas emissions. In fact, steel is one of the most widely recycled materials worldwide, boasting a recycling rate of approximately 90%. 2. Durability: Steel rebars are renowned for their strength and durability, granting structures a longer lifespan. This lessens the necessity for frequent replacements or repairs, resulting in reduced waste generation and the conservation of resources. 3. Energy efficiency: Steel production has become increasingly energy-efficient over time, thanks to advancements in technology and processes. This signifies that the environmental impact of steel production has been decreasing, making it a more sustainable choice in comparison to other materials. 4. Reduced deforestation: Steel rebars provide an alternative to timber reinforcement, which is often acquired through deforestation practices. By opting for steel rebars instead, we can help alleviate the pressure on forests and safeguard their invaluable ecosystem services. 5. Waste reduction: Steel rebars can be prefabricated and cut to precise lengths, minimizing waste on construction sites. Additionally, the scrap generated during the fabrication process can be recycled, further reducing waste generation. In conclusion, the utilization of steel rebars in construction offers a variety of environmental benefits, including recyclability, durability, energy efficiency, reduced deforestation, and waste reduction. These advantages contribute to a more sustainable and eco-friendly construction industry.
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GB Standard HRB400 Steel Deformed Bar 18mm/20mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t
- Supply Capability:
- 20000 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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