Steel Rebar, Deformed Steel Bar,Iron Rods For Construction/Concrete/Building
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 1000 m.t./month
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deformed steel bar grade 40
material: HRB400, BS4449 GR460B
size: 8-36mmx12m.
short delivery time by bulk or container
deformed steel bar grade 40
material: HRB400, BS4449 GR460B
size: 8-36mmx12m.
short delivery time with bulk or container
packing: Mill standard export packing in bundles/coil, around 2tons/bundle.
country of Origin: China
delivery Time: Within a 35 days
Shipment: by bulk vessel or by container
Leading goods:
section steel:angles,channels,I-beam,H-beam;
coils:cold/hot rolled coils,PPGI,galvanized coils,plate,checkered plate,cutting steel plate,steel strip;
wire rod:steel wire,deformed wire,bar;
pipe:seamless pipe,rectangular pipe,welded pipe,spiral welded pipe,pipe fittings;
stainless steel:steel sheets,stainless steel strips,stainless bar,stainless tube;
special:weathering steel,shipbuilding steel;
construction steel:C-channel,Z-channel,T-bar,high-speed divider plate,corrugated steel plate,steel grating.
Advantage:
We are the spot supplier, Six huge warehouses which can hold 20,000 MT goods.It makes the cost lower than others,we can provide the competitive price for you.
Delivery time:
Normal sizes can be provided in 7days, the others should be ready in 30---45 days.
Further treatment:
We can offer cutting,painting,drilling holes,bending,threading, welding,galvanization,packing etc.
Security interest:
We have already passed the ISO9001, BV and SGS authentication which makes the quality secured.
If you have the interest in any of the products we can provided, pls don't hesitate to connect with me. Looking forward to cooperate with you.
FAQ of Steel Deformed Bar
1. More than 10 years experience in this industry
2. 100,000 tons exporting per month
3. Professional foreign trade tea
4. OEM&ODM capacity
5. High quality assured & competitive price
6. Try our best to meet your needs & save your budget
7. Very popular in Southeast Asia, Africa, Mid-East and South America etc.
8. VIP membership system, first time customers and long-term cooperation customers can get extra discount on some products.
- Q: How do steel rebars reinforce concrete?
- Steel rebars reinforce concrete by providing tensile strength to the concrete structure. The rebars are embedded within the concrete, and when the concrete undergoes tensile forces, the rebars resist the tension and prevent the concrete from cracking or breaking. This combination of concrete and steel rebars creates a strong and durable composite material that can withstand various types of loads and stresses.
- Q: How are steel rebars protected against corrosion in aggressive environments?
- Various methods are utilized to protect steel rebars from corrosion in aggressive environments. One commonly employed approach involves the application of protective coatings. These coatings are administered to the surface of the rebars, establishing a barrier between the steel and the corrosive elements present in the surroundings. Examples of protective coatings comprise epoxy, zinc, and polyethylene coatings. Furthermore, cathodic protection is another means of safeguarding steel rebars. This technique involves linking the rebar to a sacrificial anode, often composed of a more reactive metal like zinc or magnesium. By doing so, the anode corrodes instead of the rebar, effectively sacrificing itself to shield the steel against corrosion. Additionally, corrosion inhibitors can be utilized to protect steel rebars. These inhibitors can be incorporated into the concrete mixture or directly applied to the rebars. Their function is to diminish the corrosive potential of the environment or form a protective film on the surface of the rebar, curtailing corrosion. Moreover, proper design and construction practices can play a pivotal role in preserving the integrity of steel rebars against corrosion. Sufficient concrete cover can aid in establishing a physical barrier between the rebar and the aggressive environment, thereby minimizing the steel's exposure to corrosive elements. Additionally, effective drainage systems and the use of non-corrosive aggregates contribute to the reduction of rebars' exposure to moisture and other corrosive substances. In summary, a combination of protective coatings, cathodic protection, corrosion inhibitors, and appropriate design and construction practices are employed to guarantee the protection of steel rebars in aggressive environments. These measures effectively prolong the lifespan of structures and uphold their structural integrity.
- Q: What is the maximum allowable spacing between steel rebars in columns?
- The maximum allowable spacing between steel rebars in columns typically depends on the specific building code or design specifications. However, a common guideline is to keep the spacing between rebars within three times the diameter of the largest bar being used.
- Q: How do steel rebars impact the overall energy efficiency of a structure?
- Steel rebars can have both positive and negative impacts on the overall energy efficiency of a structure. On one hand, steel rebars can enhance the structural integrity and durability of the building, leading to a longer lifespan and reduced energy consumption for repairs and maintenance. Additionally, steel rebars can be used to reinforce concrete, which provides better insulation and thermal efficiency. On the other hand, the production of steel rebars requires significant energy and emits greenhouse gases, contributing to the carbon footprint of the structure. Therefore, the overall energy efficiency of a structure depends on various factors, including the design, construction techniques, and the use of sustainable materials alongside steel rebars.
- Q: Can steel rebars be used in structures with high electromagnetic shielding requirements?
- To a certain extent, structures with high electromagnetic shielding requirements can make use of steel rebars. Steel is inherently conductive, meaning it can redirect and absorb electromagnetic waves, which is why steel rebars are beneficial for reducing the infiltration of electromagnetic radiation into structures. Nevertheless, it is important to consider that the effectiveness of steel rebars in providing electromagnetic shielding relies on various factors. The thickness and quality of the steel rebars, the design and construction of the structure, and the frequency and intensity of the electromagnetic waves all contribute to determining the level of shielding that can be achieved. In situations where extremely high electromagnetic shielding requirements are necessary, additional measures may be required. These measures may involve the utilization of specialized materials that are specifically designed for electromagnetic shielding, such as conductive coatings or composite materials with high conductivity. Furthermore, it is crucial to take into account the overall design and construction of the structure to ensure that the steel rebars are properly grounded. Proper grounding facilitates the safe channeling and dissipation of electromagnetic energy, preventing the accumulation of potentially hazardous electromagnetic fields. In conclusion, although steel rebars can contribute to electromagnetic shielding in structures, the level of shielding provided can vary depending on multiple factors. For structures with stringent electromagnetic shielding requirements, it is advisable to seek guidance from experts in the field to determine the most suitable materials and construction techniques.
- Q: How do steel rebars affect the flexibility of concrete structures?
- Steel rebars play a crucial role in enhancing the flexibility and overall strength of concrete structures. When incorporated into concrete, rebars provide tensile strength, which is essential for resisting bending and stretching forces that can cause cracks or failure in the structure. Concrete is strong in compression but weak in tension. This means that it can withstand a significant amount of weight pushing down on it, but it is prone to cracking or breaking when subjected to pulling or stretching forces. By adding steel rebars to the concrete, its tensile strength is significantly increased, allowing it to better resist these tension forces. The presence of rebars in concrete structures allows them to distribute loads more evenly and efficiently. When subjected to external forces such as wind, earthquakes, or heavy loads, the rebars help to distribute the stress throughout the concrete, preventing concentrated stress points and minimizing the risk of structural failure. Furthermore, steel rebars also enhance the flexibility of concrete structures. By providing additional support and reinforcement, rebars allow the concrete to bend and flex to a certain extent. This flexibility is crucial, especially in areas prone to seismic activity or where excessive vibrations occur. Flexibility in concrete structures is essential as it allows the building to absorb and dissipate energy during earthquakes or other dynamic forces. Without the presence of rebars, concrete structures would be more rigid and prone to cracking or collapsing under such conditions. In summary, steel rebars greatly improve the flexibility and overall performance of concrete structures. By providing the necessary tensile strength and reinforcement, they enable the concrete to withstand bending, stretching, and external forces more effectively, reducing the risk of structural failure and ensuring the longevity and durability of the construction.
- Q: How do steel rebars prevent cracks in concrete structures?
- Steel rebars prevent cracks in concrete structures by providing reinforcement and increasing the tensile strength of the concrete. When concrete is exposed to tensile forces, such as those caused by external loads or temperature changes, it tends to crack. However, steel rebars, which are embedded within the concrete, act as a reinforcement and absorb these tensile forces. The rebars distribute the load more evenly throughout the structure, preventing localized stress and minimizing the formation of cracks.
- Q: How is thread steel made?
- The billets used in continuous small mills are generally continuous billets, the length of which is usually 130~160mm, the length is about 6~12 meters, and the billets are 1.5~3 tons in weight. The rolling line is mostly flat interchange arrangement to realize all round rolling without torsion. According to different billet specifications and finished sizes, there are 18, 20, 22 and 24 small mills, 18 of which are mainstream. The use of bar rolling reheating furnace, high pressure water descaling, in addition to the new technology of low-temperature rolling, endless rolling, rolling, rolling development to adapt and improve the precision of rolling billet, rolling mill is mainly to improve the accuracy and speed (up to 18m/s). Product specifications are generally phi 10-40mm, Phi Phi 6-32mm or 12-50mm. The steel grades produced are low, medium and high carbon steels and low-alloy steels, which are widely needed in the market. The maximum rolling speed is 18m/s. The production process is as follows:Reheating furnace, roughing mill, rolling mill, rolling mill, water cooling device, cooling bed, cold shear, automatic counting device, bundling machine, unloading bench is calculated from the Shanghai kuanli Steel Co. Ltd. to provide thread steel weight: diameter * * outer diameter theory 0.00617=kg/m theory and 6.50.260 steel manufacturers specifications Jiuzheng 8.00.395 Jiuzheng steel 100.617 steel 120.888 steel 141.21 nine nine nine nine nine steel 161.58 steel 182 steel 202.47 steel 222.98 steel 253.85 nine nine nine nine nine steel 284.83 steel 326.31 steel.
- Q: What are the different types of steel rebars used in road construction?
- Road construction utilizes various types of steel rebars, each possessing unique characteristics and advantages. Some commonly employed variants encompass: 1. Mild Steel Rebars: These, also recognized as carbon steel rebars, represent the prevailing choice in road construction. With a low carbon content and affordability, they are suitable for diverse applications, offering commendable strength and ductility. 2. High Strength Deformed (HSD) Rebars: Distinguishing themselves through enhanced tensile strength in comparison to mild steel rebars, these are produced by mechanically treating mild steel bars, including hot rolling, quenching, and tempering. HSD rebars satisfy the demand for elevated load-bearing capacity, such as in bridge construction. 3. Stainless Steel Rebars: Boasting a high chromium content, these rebars possess corrosion resistance. They prove particularly advantageous in regions with high humidity, coastal areas, or locations exposed to corrosive substances, albeit at a higher cost compared to alternative types. Their allure lies in long-term durability. 4. Epoxy-Coated Rebars: For protection against corrosion, these rebars undergo epoxy coating. This coating creates a barrier, safeguarding the steel from the environment and moisture, thereby preventing penetration by corrosive elements. In concrete pavements, epoxy-coated rebars extend road longevity. 5. Galvanized Rebars: These rebars undergo zinc coating, affording them protection against corrosion. The zinc layer acts sacrificially, preventing the steel from encountering corrosive elements. Road construction projects necessitating corrosion resistance, particularly in moist or chemically-exposed areas, commonly employ galvanized rebars. Selecting the appropriate steel rebars for road construction projects hinges upon specific requirements. Factors such as load-bearing capacity, environmental conditions, and budgetary considerations significantly influence the rebars' optimal type.
- Q: Can steel rebars be used in architectural or decorative concrete applications?
- Yes, steel rebars can be used in architectural or decorative concrete applications. They provide structural reinforcement and enhance the overall strength and durability of the concrete. Additionally, when properly designed and installed, steel rebars can be concealed or incorporated into the design, making them suitable for various aesthetic purposes in architectural or decorative concrete projects.
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Steel Rebar, Deformed Steel Bar,Iron Rods For Construction/Concrete/Building
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 1000 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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