Deformed Steel Bar BS4449 GR.460B GR.B500B
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 1000 m.t./month
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Specifications
Steel rebar
Price: FOB $475-535/MT
Size:6-50mm
Moq: 300tons of each size
Material: BS4449 GR460, ASTM A615, HRB400, HRB500
Steel rebar/deformed steel bar/reinforced steel bar
1.Standard: ASTM,BS,DIN,JIS,BS 4449 GR460B-1997. ASTM A615/706 GR 40/60, GB(HRB400,500)
2.Grade:HRB35, HRB400, HRB500,
3.Diameter:6-50mm
4.Length:6-12m and in coils
5.Place of Origin: Tangshan, China (Mainland)
6.Brand Name: CNBM
7.Material: cabon steel
8.Color: black
9.Packing: bundles or as per the buyers' requirement.
10. Minimum Order Quantity: 500 MTS as per size.
11. Payment terms: TT or LC at sight.
12. Delivery time: within 25-30 days after down payment or L/C received.
13. Application: Construction,Bridge Building, Road Building
- Q: What is the effect of welding on the properties of steel rebars?
- The effect of welding on the properties of steel rebars can vary depending on several factors. Firstly, welding can introduce heat into the rebars, which may cause localized changes in the material's microstructure. This can lead to changes in the rebars' mechanical properties, such as hardness and strength. The heat-affected zone (HAZ) near the weld can experience changes in grain structure, which may affect the rebars' ability to withstand tension, compression, or bending forces. Secondly, the welding process can introduce residual stresses into the rebars. This occurs due to the expansion and contraction of the material during the heating and cooling phases of welding. Residual stresses can potentially affect the rebars' performance under load, as they can increase the susceptibility to cracking or failure. Furthermore, welding can also introduce defects such as porosity, inclusions, or lack of fusion if not performed properly. These defects can weaken the rebars and reduce their load-bearing capacity. Additionally, the presence of welding consumables and fluxes can introduce impurities into the rebars, which may affect their corrosion resistance. Overall, while welding can be an effective method for joining steel rebars, it is crucial to consider the potential effects on their properties. Proper welding techniques, including preheating, controlling heat input, and post-weld heat treatment, can help minimize these effects and ensure that the rebars maintain their desired mechanical and structural properties. Regular inspections and testing of welded rebars are also important to ensure the integrity and safety of the overall structure.
- Q: What is the recommended minimum diameter of steel rebars used in earthquake-prone areas?
- The recommended minimum diameter of steel rebars used in earthquake-prone areas is typically 12 millimeters or larger.
- Q: What are the guidelines for splicing steel rebars in a structure?
- The guidelines for splicing steel rebars in a structure typically involve following the specifications and recommendations provided by the relevant building codes, engineering standards, and design plans. These guidelines may include requirements for the type and length of splice used, proper alignment and placement of rebars, minimum lap lengths, adequate reinforcement cover, and approved splicing methods such as mechanical or welding. It is crucial to consult with a structural engineer or a qualified professional to ensure compliance with the specific project requirements and to guarantee the structural integrity and safety of the building.
- Q: What is the cost of steel rebars?
- The cost of steel rebars can vary depending on various factors such as the grade of steel, market conditions, and location. On average, the cost of steel rebars ranges from $500 to $800 per metric ton. However, it is important to note that prices can fluctuate due to factors like supply and demand, raw material costs, and any additional taxes or tariffs imposed on steel imports. It is recommended to contact local suppliers or check market reports for the most up-to-date and accurate pricing information.
- Q: Can steel rebars be used in slabs and beams?
- Yes, steel rebars can be used in slabs and beams. Steel rebars are commonly used as reinforcement in concrete structures, including slabs and beams, to enhance their strength and durability.
- Q: Are there any limitations or restrictions on using steel rebars in construction?
- Yes, there are certain limitations and restrictions on using steel rebars in construction. Firstly, the size and shape of rebars should comply with the specifications provided by engineering and construction standards. Additionally, the placement and spacing of rebars should follow the structural design and building codes to ensure proper reinforcement and structural integrity. Moreover, any potential corrosion or exposure to harsh environments can affect the durability of steel rebars, so appropriate protective measures should be taken. Lastly, the cost of steel rebars can be a limitation, especially in projects with budget constraints.
- Q: 16 meters of thread steel, how many meters?
- Steel is known as hot rolled ribbed bar. Ordinary hot rolled steel bars are made up of HRB and the minimum yield point of the brand. H, R, and B are the first letters in English for hot-rolled (Hotrolled), ribbed (Ribbed) and reinforced (Bars) three words.
- Q: What are the guidelines for inspecting steel rebars on a construction site?
- The guidelines for inspecting steel rebars on a construction site typically include checking for proper placement, alignment, and spacing of the rebars according to the project specifications and design drawings. Inspectors also need to ensure that the rebars are free from any damages, rust, or contamination that could affect their structural integrity. Additionally, inspectors should verify the rebars' dimensions, lengths, and grades, as well as their proper anchorage and connection to adjacent elements. Regular inspections throughout the construction process are crucial to maintain quality and compliance with safety standards.
- Q: What is the effect of chloride ions on steel rebars?
- The presence of chloride ions in the environment can have a detrimental effect on steel rebars. Chloride ions can penetrate the protective oxide layer on the surface of the steel and react with the iron atoms, leading to the formation of iron chloride compounds. These compounds are highly corrosive and can cause the rebars to rust and eventually weaken. This corrosion process, known as chloride-induced corrosion, can significantly reduce the structural integrity and lifespan of steel rebars, posing a risk to the overall stability of reinforced concrete structures. Therefore, it is crucial to protect steel rebars from chloride exposure through proper design, construction, and maintenance practices to ensure their long-term durability and safety.
- Q: What are the limitations of using steel rebars in construction?
- There are several limitations of using steel rebars in construction. Firstly, steel rebars are prone to corrosion in certain environments, especially if they are exposed to moisture or chemicals. This can weaken the rebars over time and compromise the structural integrity of the building. Additionally, steel rebars are heavy and require heavy machinery to transport and install, which can increase construction costs. Moreover, steel rebars have a high thermal conductivity, which can lead to energy loss and affect the energy efficiency of the building. Finally, steel rebars are not suitable for certain specialized construction applications, such as in areas with high electromagnetic fields or where non-magnetic properties are required.
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Deformed Steel Bar BS4449 GR.460B GR.B500B
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 1000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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