HRB335 small hot rolled deformed steel bar

HRB335 small hot rolled deformed steel bar System 1

HRB335 small hot rolled deformed steel bar System 2

HRB335 small hot rolled 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

Certificates: CE & ISO9001:2000
Material: hrhrb400 ,hrb500, BS4449, ASTM A615, SD400
length:6-12
Size: 6mm-40mm

Product Advantages:

OKorder's Hot Rolled Carbon Steel Deformed Bar 16-25mm 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?

HRB335 small hot rolled deformed steel bar

Q: How do steel rebars affect the overall crack control of concrete?: Steel rebars can significantly enhance the crack control of concrete. By providing tensile strength to the concrete, rebars help distribute and resist the formation of cracks. They act as reinforcement, preventing cracks from propagating and limiting their width, thus enhancing the overall durability and structural integrity of the concrete.

Q: Are there any safety precautions when handling steel rebars?: When handling steel rebars, it is important to adhere to several safety precautions. Consider the following important measures: 1. Personal Protective Equipment (PPE): Ensure that the appropriate PPE is worn at all times. This includes safety glasses or goggles, gloves, steel-toed boots, and a hard hat. These items will protect against potential hazards such as falling objects, sharp edges, or flying debris. 2. Proper Lifting Techniques: Due to the weight and awkwardness of steel rebars, it is essential to utilize proper lifting techniques. This involves bending at the knees and maintaining a straight back while lifting. Avoid sudden twisting or jerking movements that could strain muscles or cause injury. 3. Secure Storage and Handling: To prevent rebars from falling or rolling, it is crucial to store and stack them in a stable and secure manner. Utilize appropriate storage racks or containers that will ensure safe storage and eliminate risks to workers or equipment. 4. Tripping Hazards: Ensure that work areas are free from tripping hazards, such as loose rebars or debris. Secure rebars in place to prevent unexpected rolling or shifting. 5. Cutting and Bending: When cutting or bending steel rebars, use the proper tools and machinery specifically designed for these tasks. Adhere to proper procedures and ensure that the work area is clear of other workers to prevent accidents or injuries. 6. Communication and Training: Clearly communicate and provide training to all workers involved in handling steel rebars. This includes educating them about safety precautions, proper equipment usage, and emergency procedures. By following these safety precautions, the risk of accidents, injuries, and damage when handling steel rebars can be significantly reduced. Prioritizing safety in every aspect of the job is essential to ensure the well-being of workers and the successful completion of the project.

Q: How are steel rebars affected by extreme weather conditions?: Steel rebars are generally resistant to extreme weather conditions. However, prolonged exposure to harsh weather conditions such as extreme heat or cold, high humidity, and corrosive environments can lead to the formation of rust and corrosion on the surface of rebars. This can weaken their structural integrity and potentially compromise the strength and durability of the concrete structures they are embedded in. Hence, it is crucial to protect rebars with appropriate coatings or by implementing proper maintenance and inspection practices to prevent any adverse effects caused by extreme weather conditions.

Q: Are steel rebars suitable for use in extreme temperatures?: Yes, steel rebars are suitable for use in extreme temperatures. Steel has excellent thermal conductivity and can withstand both high and low temperatures without significant structural damage, making it a reliable choice for construction in extreme temperature environments.

Q: How are steel rebars protected from fire damage?: Steel rebars are protected from fire damage through various methods. One commonly used method is the application of fire-resistant coatings. These coatings are specifically designed to withstand high temperatures and prevent the steel from reaching its critical temperature, which is when it starts to lose its structural integrity. Another method is the use of fire-resistant concrete encasement. In this method, the rebars are embedded within a layer of concrete that has been specifically designed to resist fire. This concrete acts as a barrier, preventing the heat from directly reaching the steel rebars and thus protecting them from fire damage. Additionally, fire-resistant wraps or blankets can be used to provide temporary protection to steel rebars during construction. These wraps are made from fire-resistant materials and are applied directly to the rebars, creating a barrier that prevents direct exposure to fire. It is important to note that the level of fire protection required for steel rebars depends on the specific building codes and regulations in place. These codes typically specify the minimum fire resistance rating that must be achieved for structural elements, including rebars, in order to ensure the safety of the building and its occupants.

Q: Are steel rebars suitable for reinforcement in airport runways?: Yes, steel rebars are suitable for reinforcement in airport runways. They provide the necessary strength and durability to withstand heavy loads and repetitive aircraft traffic. Additionally, steel rebars offer excellent resistance to cracking and can effectively distribute the load, ensuring the longevity and safety of the runway.

Q: What does "4E" mean on the rebar?: Hrb400e refers to three earthquake resistant steel bars. Compared with the ordinary reinforced phase, the biggest advantage is that the tensile strength and elongation are relatively large, for example, the tensile strength of common grade HRB400 three reinforcement requirements of more than 400 MPa; if hrb400e is aseismic reinforcement, the tensile strength is more than 550MPa.

Q: How do steel rebars affect the overall ductility of concrete structures?: The overall ductility of concrete structures is significantly enhanced by the addition of steel rebars. Ductility refers to a material's ability to deform without fracturing under stress. In the case of concrete structures, steel rebars play a crucial role in absorbing and redistributing tensile forces. Concrete is strong in compression but weak in tension. By incorporating steel rebars into the concrete matrix, it becomes more resistant to tensile forces. When a tensile force is applied, the rebars bear the majority of the load, preventing concrete from cracking or failing. This redistribution of stress enhances the overall durability and strength of the structure. Moreover, steel rebars also serve as a warning sign before failure, contributing to the enhancement of ductility in concrete structures. As the tensile strength of the rebars is exceeded, they elongate and deform, indicating that the structure is nearing its limit. This warning allows for timely repairs or reinforcement, preventing catastrophic failures. Another important aspect of steel rebars in improving ductility is their ability to bridge cracks in concrete. When a crack occurs, the rebars act as reinforcement that spans across the crack, preventing it from spreading further. This bridging effect helps maintain the integrity of the structure and facilitates easier repair or rehabilitation. In summary, the inclusion of steel rebars in concrete structures greatly enhances their ductility by increasing tensile strength, providing warning signs before failure, and bridging cracks. This enhanced ductility ensures that the structures can withstand various loads, including seismic events and dynamic forces, while preserving their structural integrity.

Q: How are steel rebars bent or shaped to fit specific construction requirements?: Steel rebars are bent or shaped to fit specific construction requirements using various methods such as manual bending, mechanical bending machines, or hydraulic bending machines. These techniques involve applying force to the rebar, which causes it to bend or take on a desired shape. The specific method used depends on the complexity of the required shape and the quantity of rebars needed.

Q: How do steel rebars impact the overall constructability and scheduling of concrete projects?: Steel rebars have a significant impact on the overall constructability and scheduling of concrete projects. They provide structural reinforcement to concrete, increasing its strength and durability. The inclusion of rebars in the concrete design requires careful planning and coordination, as they need to be accurately positioned and supported within the concrete forms. This process can add complexity to the construction process, potentially affecting the project's timeline. However, rebars ultimately enhance the project's constructability by ensuring the structural integrity of the concrete elements, leading to safer and more reliable structures.

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