G460B deformed steel bar deformed steel bar

G460B deformed steel bar deformed steel bar System 1

G460B deformed steel bar deformed steel bar

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 100000 m.t./month

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Specifications of HRB400 Deformed Steel Bar:

Standard	GB	HRB400
Diameter	6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm

Length	6M, 9M,12M or as required
Place of origin	Hebei, China mainland
Advantages	exact size, regular package, chemical and mechanical properties are stable.
Type	Hot rolled deformed steel bar
Brand name	DRAGON

Chemical Composition: (Please kindly find our chemistry of our material based on HRB500 as below for your information)

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
	Physical capability
	Yield Strength (N/cm²)		Tensile Strength (N/cm²)			Elongation (%)
	≥400		≥570			≥14

Theoretical weight and section area of each diameter as below for your information:

Diameter(mm)	Section area (mm²)	Mass(kg/m)	Weight of 12m bar(kg)
6	28.27	0.222	2.664
8	50.27	0.395	4.74
10	78.54	0.617	7.404
12	113.1	0.888	10.656
14	153.9	1.21	14.52
16	201.1	1.58	18.96
18	254.5	2.00	24
20	314.2	2.47	29.64
22	380.1	2.98	35.76
25	490.9	3.85	46.2
28	615.8	4.83	57.96
32	804.2	6.31	75.72
36	1018	7.99	98.88
40	1257	9.87	118.44
50	1964	15.42	185.04

Usage and Applications of HRB400 Deformed Steel Bar:

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 HRB400 Deformed Steel Bar:

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

Deformed Steel Bar in container

G460B deformed steel bar deformed steel bar

Deformed Steel Bar in factory

G460B deformed steel bar deformed steel bar

Note:

1. Our products are produced according to national standard (GB), if not, supply according to national standards (GB) or agreement as customer required.

2. Other Grade and Standard Deformed Steel Bar we can supply:

Grade: GR40/GR60, G460B/B500A/B500B/B500C,BST500S

Standard: ASTM, BS, DIN

The Minimum Order Quantity of these products is high, and need to be confirmed.

3. We can not only supply Deformed Steel Bar; if you need anything about building materials, please contact us for further information.

4. Please send us your detail specifications when inquire. We will reply to you as soon as possible. We sincerely hope we can establish a long stable business relationship.

FAQ:

Q1: How soon can we receive the product after purchase?

A1: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.

Q2: What makes stainless steel stainless?

A2: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.

Q:Can steel rebars be used in architectural applications?: Yes, steel rebars can be used in architectural applications. They are commonly used in reinforced concrete structures to provide strength and durability, such as in bridges, high-rise buildings, and other architectural elements. The use of steel rebars allows for the creation of complex and aesthetically pleasing architectural designs while ensuring structural integrity.

Q:What is the recommended diameter of steel rebars for slab reinforcement?: The recommended diameter of steel rebars for slab reinforcement typically ranges from 8mm to 25mm, depending on the specific requirements of the project, load-bearing capacity, and engineering design.

Q:What are the different methods of reinforcing concrete structures using steel rebars?: There are several methods of reinforcing concrete structures using steel rebars. These include placing the rebars in a grid pattern to provide overall strength and support, using stirrups or ties to hold the rebars in place and prevent them from moving, using dowel bars to connect two separate concrete elements, and using anchor bolts or hooks to secure the rebars to the existing structure. Additionally, steel mesh or fiber reinforcement can be used to enhance the overall durability and resilience of the concrete structure.

Q:Are there any limitations or disadvantages of using steel rebars?: Yes, there are limitations and disadvantages of using steel rebars. Firstly, steel rebars are susceptible to corrosion when exposed to moisture and chemicals, leading to structural degradation over time. This corrosion can weaken the reinforcement and compromise the overall strength and durability of the structure. Additionally, steel rebars have a high thermal expansion coefficient, causing them to expand and contract with temperature variations, potentially leading to cracks in the concrete. Furthermore, steel rebars are heavy and require specialized equipment for handling and installation, increasing construction costs. Lastly, steel rebars are a finite resource, and their production contributes to carbon emissions and environmental degradation.

Q:What are the guidelines for repairing damaged steel rebars in a structure?: To ensure the structural integrity of a building when repairing damaged steel rebars in a structure, it is necessary to follow several guidelines. Here are some key guidelines that should be considered: 1. Inspection: Before commencing the repair process, a thorough inspection of the damaged rebars must be conducted. This involves assessing the extent of the damage, identifying the cause of the damage, and determining whether repair is feasible or if replacement is necessary. 2. Cleaning: Proper cleaning of the damaged rebars is essential to eliminate any loose rust, scale, or other contaminants. This can be achieved by using wire brushes, sandblasting, or other appropriate cleaning methods. 3. Removal of damaged material: Any corroded or severely damaged portions of the rebars should be removed. This may require cutting out the damaged area and replacing it with a new rebar, or employing techniques such as welding or epoxy bonding to repair the damaged section. 4. Surface preparation: Adequate preparation of the rebar surface is important to ensure proper adhesion of the repair material. This may involve roughening the surface, applying a bonding agent, or utilizing other surface preparation techniques depending on the specific repair method being employed. 5. Selection of repair material: The choice of repair material will depend on factors such as the severity of the damage, the required load-bearing capacity, and the environmental conditions in which the rebars are situated. Common repair materials include epoxy resins, cementitious mortars, or other specialized repair products. 6. Repair technique: The selection of an appropriate repair technique is crucial and should comply with relevant industry standards and codes. Techniques such as welding, epoxy bonding, or mechanical splicing can be employed to repair damaged rebars. 7. Quality control: Throughout the repair process, it is important to implement quality control measures to ensure the effectiveness and durability of the repair. This may involve strength testing of the repaired rebars, monitoring the curing process, and conducting inspections to verify compliance with the guidelines. 8. Documentation: Thorough documentation of the repair process is essential, including photographs, test results, and any relevant certifications or warranties. This documentation serves as a valuable reference for future maintenance and provides evidence of the repair work carried out. It should be noted that the guidelines for repairing damaged steel rebars may vary depending on project-specific requirements, local building codes, and the recommendations of structural engineers or repair specialists. Therefore, consulting with experts in the field is crucial to ensure safe and effective repair work.

Q:What are the different types of steel rebars available?: There are several types of steel rebars available, including standard carbon steel rebars, epoxy-coated rebars, galvanized rebars, stainless steel rebars, and composite rebars.

Q:What are the different shapes and profiles of steel rebars?: There are various shapes and profiles of steel rebars, including round bars, deformed bars, square bars, and flat bars. Round bars have a cylindrical shape and are commonly used for general construction purposes. Deformed bars have ribbed surfaces to enhance bonding with concrete, providing better strength and stability. Square bars have a square cross-section and are often used for making frames, supports, and structures. Flat bars have a rectangular shape and are frequently used for manufacturing plates, brackets, and other structural components.

Q:How do steel rebars affect the thermal conductivity of a structure?: Steel rebars can significantly increase the thermal conductivity of a structure. Due to their high thermal conductivity, steel rebars act as conduits for heat transfer within the structure. This means that heat can easily flow from one part of the structure to another through the steel rebars, resulting in faster heat transmission and reduced thermal resistance. Consequently, the presence of steel rebars can enhance both the heat absorption and dissipation capacities of a structure, making it more susceptible to temperature changes and potentially affecting its overall thermal performance.

Q:What are the safety precautions to be followed while working with steel rebars?: To prevent accidents and injuries while working with steel rebars, it is essential to adhere to specific safety measures. Consider the following precautions: 1. Personal Protective Equipment (PPE): Ensure that you always wear suitable PPE, including safety glasses, gloves, hard hats, and steel-toed boots. These items will shield you from potential dangers like falling objects, sharp edges, and flying debris. 2. Training and Knowledge: Before handling steel rebars, make sure you have undergone proper training and understand the associated safety protocols. Familiarize yourself with the equipment used and comprehend the potential risks involved. 3. Proper Lifting Techniques: Handling steel rebars can be challenging due to their weight and awkward shape. Always utilize correct lifting techniques, such as bending your knees and using your legs instead of your back. Do not attempt to lift a rebar that exceeds your capacity; seek assistance if necessary. 4. Secure Storage: Store steel rebars in a designated area that is free from potential obstructions. Stack them in a stable manner to prevent toppling and causing injuries. 5. Safe Handling: When moving steel rebars, exercise caution due to their sharp edges and potential for harm. Employ appropriate lifting equipment, such as cranes or forklifts, if required. Avoid dragging or sliding rebars, as this can lead to strains or sprains. 6. Fall Protection: If working at heights or near open edges, ensure that adequate fall protection measures are in place. This may involve using guardrails, safety harnesses, or safety nets to prevent falls. 7. Fire Safety: Steel rebars can become extremely hot when exposed to heat or flames. Ensure that appropriate fire prevention measures are in place, such as fire extinguishers, and exercise caution when working near flammable materials. 8. Communication: Maintain clear communication with colleagues and supervisors to ensure everyone is aware of their surroundings and potential hazards. Utilize hand signals or radios when working in noisy environments. 9. Regular Inspections: Routinely inspect steel rebars for any defects, such as cracks or sharp edges, that could pose a safety risk. Immediately remove any damaged or faulty rebars from use. 10. First Aid and Emergency Procedures: Familiarize yourself with first aid procedures and emergency protocols in the event of accidents or injuries. Have a well-stocked first aid kit readily available on-site and know the location of the nearest medical facility. By adhering to these safety precautions, you can minimize the likelihood of accidents and injuries while working with steel rebars. Always prioritize your safety and the safety of those around you.

Q:What are the different types of steel rebars used in beams and columns?: There are primarily two types of steel rebars commonly used in beams and columns: carbon steel rebars and stainless steel rebars. Carbon steel rebars are the most commonly used and provide good strength and durability. Stainless steel rebars, on the other hand, offer excellent corrosion resistance and are often used in structures exposed to harsh environments or in areas with high humidity levels.

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