Hot Rolled Carbon Steel Deformed Bar 12mm

Hot Rolled Carbon Steel Deformed Bar 12mm System 1

Hot Rolled Carbon Steel Deformed Bar 12mm

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: :25 m.t.

Supply Capability:: 20000 m.t./month

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Product Description:

OKorder is offering Hot Rolled Carbon Steel Deformed Bar 12mm with High Quality at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.

Product Applications:

Hot Rolled Carbon Steel Deformed Bar 12mm with High Quality 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..

Product Advantages:

OKorder's Hot Rolled Carbon Steel Deformed Bar 12mm with High Quality are durable, strong.packed and suitable for construction

Main Product Features:

· Premium quality

· Prompt delivery & seaworthy packing (30 days after receiving deposit)

· Can be recycled and reused

· Mill test certification

· Professional Service

· Competitive pricing

Product Specifications:

Manufacture: Hot rolled

Grade: HRB335 HRB400 BS4449 Grade460 ASTM Grade40 Grade60

Certificates: ISO, SGS, BV, CIQ

Length:6m 8m 9m 12m

Packaging: Export packing, packed by coil

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: How do we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.

Q3: How soon can we receive the product after purchase?

A3: 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.

Q4: How many tons per bundle?

A4: Around 2-3tons

Q5: How to avoid the rust after deliver the goods to the loading port?

A5: We will keep the goods at the port covered with water-proof material

Q6: What is the chemical composition and physical properties of HRB400?

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

Q7:What is chemical composition and physical properties of 500B?

A7：

BS4449 500B	Chemical Composition
	C	Mn	Si	S	P
	0.24	0.45	0.16	0.05	0.31
	Physical capability
	Yield Strength(N/cm²)		Tensile Strength(N/cm²)		Elongation (%)
	650		≥500		19

Images:

Hot Rolled Carbon Steel Deformed Bar 12mm

Q: What are the guidelines for proper storage and transportation of steel rebars?: The guidelines for proper storage and transportation of steel rebars include keeping them off the ground to avoid moisture and corrosion, storing them in a well-ventilated area, organizing them in a neat and stable manner to prevent falling or shifting, protecting them from direct exposure to weather conditions, and securing them properly during transportation to avoid damage or accidents.

Q: Are there any standards or codes for steel rebars?: Yes, there are indeed standards and codes for steel rebars. These standards and codes are essential to ensure the quality, safety, and compatibility of steel rebars used in various construction projects. One of the most widely recognized standards for steel rebars is the ASTM A615/A615M - Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement. This standard provides specific requirements for the physical and mechanical properties of steel rebars, such as chemical composition, yield strength, tensile strength, elongation, and bendability. It also includes guidelines for marking, packaging, and testing of rebars. In addition to ASTM A615/A615M, there are other relevant standards and codes used in different countries and regions. For example, in Europe, the European Standard EN 10080 - Steel for the Reinforcement of Concrete provides specifications for steel rebars, including dimensions, tolerances, and mechanical properties. Similarly, the British Standard BS 4449 - Steel for the Reinforcement of Concrete is widely used in the United Kingdom. These standards and codes not only ensure consistency in the manufacturing and production of steel rebars but also help architects, engineers, and construction professionals select the appropriate rebars for their projects. Compliance with these standards is crucial to guarantee the structural integrity, durability, and safety of reinforced concrete structures. It is important for stakeholders in the construction industry to be familiar with the relevant standards and codes for steel rebars and to consistently adhere to them. This helps to maintain high-quality construction practices and prevent potential failures or accidents due to substandard materials.

Q: What are the different grades of steel rebars available?: The different grades of steel rebars available include Grade 40, Grade 60, Grade 75, and Grade 80, which indicate the minimum yield strength of the rebars in thousands of pounds per square inch (ksi).

Q: What is the role of steel rebars in preventing structural failures?: The role of steel rebars in preventing structural failures is crucial and integral in the construction industry. Steel rebars, also known as reinforcing bars, are used to reinforce and strengthen concrete structures, ensuring their durability and ability to withstand various forces. One of the primary functions of steel rebars is to enhance the tensile strength of concrete. While concrete is an excellent material for compression, it is relatively weak in tension. The introduction of steel rebars into concrete structures helps to counter this weakness by providing resistance to tensile forces. Steel rebars act as a reinforcement, absorbing and distributing tensile stresses throughout the structure, preventing cracks and fractures from developing and ultimately preventing structural failures. Additionally, steel rebars play a crucial role in preventing structural failures by improving the overall structural stability. By reinforcing concrete, rebars enhance the structural integrity and increase the load-bearing capacity of the structure. This allows the structure to withstand heavier loads and forces, such as those caused by natural disasters, extreme weather conditions, or human activities. Steel rebars are also essential in preventing structural failures caused by corrosion. Concrete structures are exposed to various environmental factors that can lead to corrosion of the reinforcing steel, such as moisture, chemicals, and salts. As steel rebars are typically coated or protected with anti-corrosive materials, they provide a barrier against corrosion, ensuring the long-term durability and integrity of the structure. Furthermore, steel rebars aid in preventing structural failures by providing stability during construction. During the construction process, steel rebars are strategically placed within the concrete forms to provide reinforcement at critical points and areas prone to high stress. This ensures that the structure is stable and can withstand the loads and forces imposed during and after construction. In summary, the role of steel rebars in preventing structural failures is multi-faceted. They enhance the tensile strength of concrete, increase structural stability, prevent corrosion, and provide stability during construction. By reinforcing the concrete, steel rebars significantly contribute to the overall strength, durability, and safety of structures, ultimately preventing structural failures and ensuring the longevity of the built environment.

Q: How do steel rebars affect the flexibility of concrete structures?: Steel rebars greatly enhance the flexibility of concrete structures. By adding rebars to concrete, they provide tensile strength, allowing the structure to resist cracking and withstand external forces such as wind, earthquakes, and heavy loads. This reinforcement enables the concrete to flex without breaking, increasing its overall flexibility and durability.

Q: How do steel rebars affect the overall corrosion resistance of marine structures?: The overall corrosion resistance of marine structures is significantly affected by steel rebars. Depending on various factors, the presence of steel rebars in concrete marine structures can either enhance or deteriorate their resistance to corrosion. To begin with, when appropriate preventive measures are taken, steel rebars can enhance corrosion resistance. For example, if the rebars are adequately coated with anti-corrosion materials like epoxy or zinc, they can provide an additional layer of protection against the corrosive effects of seawater. Moreover, ensuring proper concrete cover and compaction during construction can help prevent seawater from penetrating the rebars, reducing the risk of corrosion. Conversely, if steel rebars are not properly coated or if the concrete cover is insufficient, they can contribute to the degradation of marine structures. When exposed to the aggressive marine environment, rebars can corrode, leading to rust formation. Rust occupies more space than steel, causing expansion that exerts pressure on the surrounding concrete. This pressure can result in concrete cracking and spalling, further exposing the rebars to corrosion and compromising the overall structural integrity of the marine structure. Regular maintenance and inspection are crucial to mitigate the negative effects of steel rebars on corrosion resistance. Periodic inspections can help identify any signs of corrosion, enabling timely repairs or replacement of rebars. Additionally, implementing cathodic protection systems can provide an electrochemical countermeasure against corrosion, ensuring the longevity and durability of the marine structure. In conclusion, steel rebars play a vital role in the corrosion resistance of marine structures. Proper coating, concrete cover, and maintenance measures are essential to ensure the positive contribution of rebars to corrosion resistance. Neglecting these factors can lead to the degradation of marine structures.

Q: How do steel rebars affect the overall construction cost of industrial buildings?: The overall construction cost of industrial buildings can be significantly influenced by steel rebars. These rebars are utilized to reinforce concrete structures, providing strength and durability. The cost is directly affected by the amount of steel rebars required in a building project, as the price of steel is a major component of the overall construction expenses. To begin with, the size, design, and complexity of the industrial building determine the quantity of rebars needed. Larger buildings or those with intricate architectural features may necessitate a greater number of rebars, resulting in increased costs. Furthermore, the design and engineering requirements for seismic or wind resistance can also impact the quantity of rebars, thus affecting the construction budget. Furthermore, the cost can be influenced by the quality and grade of the steel rebars used. Higher-grade rebars, such as those with superior tensile strength or corrosion resistance, may entail higher expenses. Nevertheless, the utilization of higher-grade rebars can provide long-term benefits by enhancing the structural integrity of the building and reducing maintenance and repair costs throughout its lifespan. Additionally, transportation and handling costs contribute to the overall cost. Steel rebars are heavy and bulky, necessitating careful handling and transportation to the construction site. The distance between the steel supplier and the site can have a significant impact on transportation costs. Moreover, the storage and protection of rebars on-site must be considered to ensure their quality, which may result in additional expenses. Lastly, labor costs associated with the installation of steel rebars should be taken into account. Skilled labor is required to accurately place and tie the rebars according to design specifications and building codes. The complexity of the reinforcement design can affect the time required for installation, ultimately influencing labor costs. In conclusion, steel rebars are of utmost importance in the construction of industrial buildings as they reinforce concrete structures. The quantity, quality, transportation, and labor costs associated with steel rebars directly affect the overall construction cost. Therefore, careful planning and consideration of these factors are necessary to effectively manage the budget of industrial building projects.

Q: How long do steel rebars typically last?: Steel rebars typically have a long lifespan and can last for several decades. The exact duration of their lifespan depends on various factors, such as the quality of the rebar, the environmental conditions it is exposed to, and the maintenance practices implemented. Generally, steel rebars are designed to be resistant to corrosion, which is one of the main factors that can affect their longevity. However, over time, rebars may experience some corrosion due to exposure to moisture, chemicals, or other corrosive agents. This can potentially reduce their lifespan. Regular inspections, maintenance, and the application of protective coatings can help extend the lifespan of steel rebars. With proper care, steel rebars can typically last 30 to 50 years or even longer.

Q: How are steel rebars cut and bent on-site?: Steel rebars are cut and bent on-site using specialized tools and equipment. The process typically involves the following steps: 1. Measurement: The rebars are measured according to the required length and dimensions specified in the construction plans. This is crucial to ensure accuracy and precision in the bending and cutting process. 2. Cutting: Rebars can be cut using different tools such as manual rebar cutters, hydraulic shears, or portable electric cutters. These tools are designed to provide clean and precise cuts without causing damage to the rebars. The rebars are positioned securely, and the cutting tool is applied to the marked area, resulting in the desired length. 3. Bending: Once the rebars are cut to the required length, they are bent using rebar benders. These machines have various attachments and rollers that can shape the rebars according to the desired angle and radius. The rebars are carefully positioned and secured in the bender, and the machine exerts force to bend them to the specified shape. 4. Quality control: After cutting and bending, the rebars undergo quality control checks to ensure they meet the required specifications. This may involve visual inspections, measurements, and testing to verify the accuracy of the dimensions and the quality of the cuts and bends. It is important to note that skilled workers, such as ironworkers or steel fixers, are typically responsible for the on-site cutting and bending of rebars. They have the expertise to interpret construction plans, use the appropriate tools, and ensure that the rebars are cut and bent accurately to meet the project's needs.

Q: What are the different methods of protecting steel rebars against corrosion?: There are multiple methods available for safeguarding steel rebars from corrosion, which can be broadly categorized into passive and active protection. Passive protection methods involve using barrier coatings or inhibitors to prevent corrosive agents from reaching the surface of the steel rebars. One commonly used technique is applying epoxy coatings, which create a physical barrier between the rebar and its surrounding environment. These coatings can be administered through spraying, brushing, or immersion, and offer excellent corrosion protection. Another passive protection method is utilizing zinc-based coatings like galvanization or zinc-rich paints. These coatings provide sacrificial protection, where the zinc layer corrodes first, thereby shielding the steel rebar from corrosive elements. Galvanization, a widely adopted technique, involves immersing the rebar in molten zinc to form a protective layer. In addition to barrier coatings, inhibitors can also be employed to protect steel rebars. Inhibitors work by reducing the corrosive activity of the surrounding environment. Common inhibitors include calcium nitrite, which forms a protective layer on the rebar's surface, and organic compounds such as amines and phosphates, which passivate the steel and decrease corrosion rates. Active protection methods involve using impressed current cathodic protection (ICCP) or galvanic anodes. ICCP entails applying a direct electrical current to the steel rebar, counteracting the corrosive forces. This technique necessitates the installation of anodes and a power supply system. On the other hand, galvanic anodes are sacrificial metals like aluminum or magnesium that are connected to the steel rebar. The anode corrodes instead of the rebar, offering protection. It is important to consider various factors, including the environment, exposure conditions, and project requirements, when selecting a protection method. Consulting corrosion experts or engineers is often recommended to determine the most suitable method for safeguarding steel rebars from corrosion in a specific situation.

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