High Quality GB Standard Deformed Steel Rebar HRB400

High Quality GB Standard Deformed Steel Rebar HRB400 System 1

High Quality GB Standard Deformed Steel Rebar HRB400

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Loading Port:: China main port

Payment Terms:: TT or LC

Min Order Qty:: 50 m.t.

Supply Capability:: 100000 m.t./month

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Specifications of High Quality GB Standard Deformed Steel Rebar HRB400

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 of High Quality GB Standard Deformed Steel Rebar HRB400

(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 High Quality GB Standard Deformed Steel Rebar HRB400

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 High Quality GB Standard Deformed Steel Rebar HRB400

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

High Quality GB Standard Deformed Steel Rebar HRB400

Deformed Steel Bar in container

Deformed Steel Bar in factory

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.

Q:Are there any environmental concerns related to the production of steel rebars?: Yes, there are several environmental concerns related to the production of steel rebars. One major concern is the high carbon emissions associated with the steel production process, which contributes to climate change. Additionally, the extraction and processing of raw materials for steel rebars, such as iron ore and coal, can lead to deforestation, habitat destruction, and air and water pollution. Proper waste management and recycling of steel scrap are also important considerations to minimize the environmental impact of steel rebar production.

Q:How much does a futures screw do?: More than 2000 dollars in one hand. Futures show a ton of the price, he is ten tons per hand. Suppose ten tons is 27000, suppose. If Futures Company receives 10% margin. That's 2700 dollars, one hand.

Q:How do steel rebars affect the overall construction cost?: Steel rebars can significantly impact the overall construction cost. While they add to the initial expenses, their use enhances the structural integrity and durability of the building, resulting in long-term cost savings by reducing maintenance and repair expenses. Additionally, steel rebars provide strength and reinforcement, allowing for the construction of taller and more complex structures, which may increase the overall cost but also enhance the building's value and functionality.

Q:How do steel rebars resist abrasion in concrete structures?: Steel rebars resist abrasion in concrete structures due to their high tensile strength and durable nature. The rough surface of the rebars provides better adhesion with the concrete, preventing slippage and ensuring a strong bond between the two materials. Additionally, the steel rebars act as reinforcement, distributing the load evenly and reducing the chances of cracks or spalling caused by abrasion or heavy impacts. Overall, the presence of steel rebars greatly enhances the durability and longevity of concrete structures.

Q:What are the guidelines for proper splicing of steel rebars in concrete structures?: Ensuring the structural integrity and safety of concrete structures requires strict adherence to guidelines for splicing steel rebars. The following are key guidelines to follow: 1. Lap Splicing Length: The overlapping distance between rebars, known as lap splicing length, must adhere to the design plans or structural codes. Typically, minimum lap lengths are specified as a multiple of rebar diameter, such as 40 times for tension members and 25 times for compression members. 2. Cleanliness: Prior to splicing, rebars must be thoroughly cleaned to remove rust, scale, dirt, and other contaminants. Proper cleaning guarantees a strong bond during splicing. 3. Proper Alignment: Rebars to be spliced should be aligned correctly to maintain reinforcement continuity. Misalignment can cause stress concentration and weaken the structure. The bars should be parallel, evenly spaced, and in a straight line. 4. Splice Type: Various splice connections, including lap splicing, mechanical splicing, and welded splicing, are available. The choice of splice type should consider project requirements, structural design, and local building codes. 5. Reinforcement Bar Preparation: Before splicing, rebars should be prepared by removing scale, rust, and other contaminants. This can be achieved through brushing, grinding, or shot blasting. Additionally, the bar ends must be clean and free of deformations or irregularities. 6. Testing and Inspection: Regular testing and inspection are crucial to ensure the quality and integrity of spliced rebars. Non-destructive testing methods like ultrasound or magnetic particle testing can be used to check bond strength and ensure correct splicing. 7. Adequate Cover: Spliced rebars require sufficient concrete cover to protect against corrosion and fire. The concrete cover thickness should comply with local building codes and design specifications. 8. Proper Grouting: When using mechanical splices, ensure proper grouting or filling of splice sleeves or couplers with approved non-shrink grout. This ensures full load transfer and prevents rebars from moving or slipping. 9. Documentation: All splicing activities should be thoroughly documented, including the splice type, lap lengths, inspection reports, and any deviations from the original design. This documentation is important for future reference, maintenance, and regulatory compliance. These guidelines serve as general recommendations, and project-specific requirements and local building codes must always be followed. Consulting a qualified structural engineer or reputable construction professional is vital to ensure the highest standards of safety and compliance.

Q:Can steel rebars be used in industrial buildings?: Yes, steel rebars are commonly used in industrial buildings as they provide excellent reinforcement for concrete structures, enhancing their strength and durability.

Q:What is the process of installing steel rebars in concrete?: The process of installing steel rebars in concrete involves several steps. First, the concrete surface is prepared by cleaning it from any debris or loose particles. Then, the rebars are cut, shaped, and positioned according to the structural requirements using supports or chairs to maintain proper spacing and elevation. Next, the rebars are securely tied together at the intersections using wire or mechanical connectors. After that, the rebars are placed within the concrete forms, ensuring they are adequately centered and do not touch the sides or bottom. Finally, the concrete is poured, encapsulating the rebars, and left to cure, creating a strong bond between the steel and concrete for enhanced structural integrity.

Q:How are steel rebars marked for identification on construction sites?: Steel rebars are typically marked for identification on construction sites using a variety of methods. The most common method is through the use of tags or labels that are attached to the rebars. These tags often contain important information such as the diameter, grade, and length of the rebar, as well as any additional specifications or codes that may be required. In addition to tags, rebars may also be marked using paint or ink. This can be done by either spraying or stenciling the required information directly onto the surface of the rebar. Paint or ink markings are often used for temporary identification purposes or when tags are not feasible. Another method of marking rebars is through the use of colored plastic or vinyl caps. These caps are placed on the ends of the rebars and are typically color-coded to indicate various characteristics such as the size or type of rebar. This method allows for quick and easy visual identification on the construction site. It is important to note that the specific method of marking rebars may vary depending on local regulations, project requirements, or the preferences of the construction company or engineer. The goal of these markings is to ensure that rebars can be easily identified and sorted during construction, helping to ensure proper installation and adherence to design specifications.

Q:What are the different types of steel coatings used on rebars?: There are several types of steel coatings commonly used on rebars, including epoxy, galvanized, and black oxide coatings.

Q:16 meters of thread steel, how many meters?: Hot rolled ribbed bar is divided into two levels, HRB335 (old No. 20MnSi), three HRB400 (20MnSiV, 20MnSiNb, old No. 20Mnti), four grade HRB500 three grade.

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