Reinforcing Bars Hot Rolled Steel Bar
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 110 m.t.
- Supply Capability:
- 500000 m.t./month
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Specification
Reinforcing Bars Hot Rolled Steel Bar
Description of Reinforcing Bars Hot Rolled Steel Bar
1, Diameter: 5.5mm-10mm Reinforcing Bars Hot Rolled Steel Bar
10m- 40mm Reinforcing Bars Hot Rolled Steel Bar
2, Length: 6m, 9m, 12m or customized
3, Standard: GB, ASTM, AISI, SAE, DIN, JIS, EN
OEM technology - send detailed technical parameters for accurate quotation.
2, Produce Process: smelt iron - EAF smelt billet - ESR smelt billet -
hot rolled or forged to get the steel round bar and plate
3, Heat Treatment: annealing, normalizing, tempering, quenching
4, Surface Treatment: Black
5, Quality Assurance: We accept third party inspection for all orders.
You can ask testing organizations such as SGS, BV, etc. to test our products before shipping.
Chemical Composition of Reinforcing Bars Hot Rolled Steel Bar
Grade | Technical data of the original chemical composition(%) | |||||
Reinforcing steel bar HRB335 | C | Mn | Si | S | P | B |
≤0.25 | ≤1.60 | ≤0.80 | ≤0.045 | ≤0.045 | >0.0008 | |
Physics Capability | ||||||
Yield Strength(N/cm2) | Tensile Strength(N/cm2) | Elongation(%) | ||||
≥ 335 | ≥490 | ≥16 | ||||
Reinforcing steel bar HRB400 | C | Mn | Si | S | P | B |
≤0.25 | ≤0.16 | ≤0.80 | ≤0.045 | ≤0.045 | 0.04-0.12 | |
Physics Capability | ||||||
Yield Strength(N/cm2) | Tensile Strength(N/cm2) | Elongation(%) | ||||
≥ 400 | ≥ 570 | ≥ 14 |
Products Show of Reinforcing Bars Hot Rolled Steel Bar
Company Information
CNBM International Corporation is the most important trading platform of CNBM group.
Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.
F A Q
1, Your advantages?
professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale
2, Test & Certificate?
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem
3, Factory or Trading Company?
CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.
4, Payment Terms?
30% TT as deposit and 70% before delivery.
Irrevocable L/C at sight.
5, Trading Terms?
EXW, FOB, CIF, FFR, CNF
6, After-sale Service?
CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.
For any problem, please kindly contact us at any your convenient time.
We'll reply you in our first priority within 24 hours.
- Q:What are the disadvantages of using special steel?
- There are a few disadvantages of using special steel. Firstly, it tends to be more expensive than regular steel due to its higher quality and specific properties. Additionally, special steel may be more difficult to source, making it less readily available for certain applications. Another drawback is that special steel often requires specialized knowledge and expertise for its proper handling and processing, which can increase production costs and complexities. Finally, special steel may have limited availability in certain grades or sizes, which can pose challenges for projects requiring specific specifications.
- Q:How does special steel contribute to the packaging aftermarket industry?
- Special steel plays a significant role in the packaging aftermarket industry by offering various benefits that contribute to the overall efficiency and quality of packaging processes. Firstly, special steel is known for its exceptional strength and durability, which makes it ideal for manufacturing packaging machinery and equipment. This robustness ensures that the machinery can withstand the rigorous demands of the industry, leading to increased reliability and reduced downtime. Additionally, special steel possesses excellent corrosion resistance properties, making it highly suitable for packaging applications that involve exposure to moisture, chemicals, or extreme temperatures. This resistance to corrosion helps to extend the lifespan of packaging equipment and prevents degradation, ultimately reducing maintenance costs and enhancing the overall efficiency of the packaging aftermarket industry. Moreover, special steel can be tailored to meet specific requirements, allowing for the production of customized packaging solutions. This flexibility and versatility enable manufacturers to create innovative designs that enhance product protection, optimize space utilization, and improve transportation logistics. For instance, special steel can be utilized to create lightweight yet sturdy packaging materials, reducing shipping costs and minimizing the environmental impact associated with packaging waste. Furthermore, special steel possesses excellent machinability and weldability, facilitating the fabrication of intricate packaging components with high precision. This capability enables manufacturers to produce packaging solutions that are tailored to specific product dimensions, ensuring a perfect fit and optimal protection during transit. In conclusion, special steel plays a crucial role in the packaging aftermarket industry by offering strength, durability, corrosion resistance, customization options, and excellent machinability. These qualities contribute to the overall efficiency, reliability, and quality of packaging processes, ultimately benefiting both manufacturers and consumers.
- Q:What are the different types of corrosion that special steel can encounter?
- Special steel can encounter various types of corrosion, including general corrosion, localized corrosion such as pitting and crevice corrosion, galvanic corrosion due to the contact with dissimilar metals, intergranular corrosion along grain boundaries, and stress corrosion cracking caused by the combined effect of tensile stress and corrosive environment.
- Q:How does special steel resist corrosion?
- Special steel resists corrosion through the addition of alloying elements, such as chromium, which form a protective oxide layer on its surface. This oxide layer acts as a barrier, preventing the underlying steel from coming into contact with corrosive substances and effectively inhibiting corrosion.
- Q:What are the different methods of preventing intergranular corrosion in special steel?
- There are several methods available to prevent intergranular corrosion in special steel. 1. Heat Treatment: One effective method is to subject the steel to a heat treatment process called solution annealing. This involves heating the steel to a high temperature and then rapidly cooling it. This process helps to dissolve any precipitates or carbides that may have formed along the grain boundaries, thus reducing the risk of intergranular corrosion. 2. Alloying: Another approach is to add specific alloying elements to the steel composition. For example, the addition of elements like chromium and molybdenum can enhance the steel's resistance to intergranular corrosion. These alloying elements form a protective oxide layer on the surface, preventing corrosion from occurring along the grain boundaries. 3. Passivation: Passivation involves treating the steel surface with chemicals that create a protective layer. This layer acts as a barrier, preventing the corrosive environment from reaching the grain boundaries. Commonly used passivation techniques include acid pickling and electrochemical methods. 4. Sensitization Control: Special attention must be given to the sensitization process, which occurs when the steel is exposed to high temperatures for a prolonged period. This can lead to the precipitation of chromium carbides along the grain boundaries, making the steel susceptible to intergranular corrosion. By carefully controlling the heating and cooling rates during processing, sensitization can be minimized or prevented. 5. Corrosion Inhibitors: Another option is to use corrosion inhibitors, which are chemicals that can be applied to the steel surface to protect it from corrosion. These inhibitors form a protective film on the surface, preventing the corrosive agents from attacking the grain boundaries. It is important to note that the specific method used will depend on the type of special steel and the intended application. The selection of the most appropriate method should be based on a thorough understanding of the steel's composition, processing conditions, and the anticipated corrosive environment.
- Q:How is special steel stored and transported?
- Special steel is stored and transported with utmost care to ensure its quality and integrity are maintained. Firstly, during storage, special steel is kept in a controlled environment with appropriate temperature and humidity levels to prevent any corrosion or damage. It is often stored in covered warehouses or storage facilities specifically designed for steel, offering protection from environmental factors such as rain, snow, and sunlight. When it comes to transportation, special steel is transported using various methods depending on the quantity and distance. For short distances, smaller quantities can be transported by trucks equipped with flatbeds or enclosed trailers. These trucks are designed to securely hold and protect the steel during transit, preventing any shifting or damage. However, for longer distances or larger quantities, special steel is often transported via rail or sea. Rail transportation ensures a smooth and stable journey, reducing the risk of damage due to vibrations or sudden movements. Steel is loaded onto specially designed railcars that provide secure storage and protection during transit. Sea transportation involves loading the steel onto shipping containers or directly onto specialized vessels. Containers are sealed and secured to prevent any movement or damage during the journey. Specialized vessels, such as roll-on/roll-off ships or heavy-lift vessels, are used for transporting oversized or extremely heavy steel components. In all cases, special steel is carefully packaged and secured using appropriate materials, such as wooden crates, steel strapping, or plastic wrapping, to prevent any scratches or dents. Additionally, the transportation process is closely monitored, and any necessary precautions are taken to ensure the steel arrives at its destination in optimal condition. Overall, the storage and transportation of special steel require meticulous planning, proper handling, and the use of specialized equipment to safeguard its quality and protect it from any potential damage or degradation.
- Q:How does special steel contribute to the power generation equipment industry?
- Special steel plays a crucial role in the power generation equipment industry by offering enhanced performance, durability, and reliability. Power generation equipment, such as turbines, generators, and transformers, operate under severe conditions including high temperatures, pressure, and corrosive environments. Special steel, with its unique properties and characteristics, addresses these challenges and contributes significantly to the industry. One of the key advantages of special steel in power generation equipment is its ability to withstand high temperatures. Special steel alloys, such as heat-resistant steels, are designed to perform under extreme conditions, enabling power plants to operate at elevated temperatures without compromising efficiency or safety. These steels maintain their strength, structural integrity, and resistance to creep and fatigue even at the highest operating temperatures, ensuring the reliability and longevity of the equipment. Furthermore, special steel offers excellent corrosion resistance, which is essential in power generation equipment due to the presence of corrosive substances like water, steam, and chemicals. Stainless steel, for instance, is widely used in power plants for its exceptional resistance to corrosion, preventing equipment degradation and minimizing maintenance costs. By using special steel, power generation companies can reduce downtime and enhance overall efficiency. Special steel also contributes to the power generation equipment industry by providing exceptional strength and mechanical properties. This is particularly important for large-scale equipment such as turbines and generators, which are subjected to high mechanical loads. High-strength special steel allows these components to withstand the stress and pressure, ensuring their safe and reliable operation over an extended period. Moreover, special steel's unique properties, such as high hardness and wear resistance, make it suitable for critical components like blades and rotors, reducing the risk of failure and enhancing overall performance. In summary, special steel is an indispensable material in the power generation equipment industry. Its ability to withstand high temperatures, resist corrosion, and provide exceptional strength and mechanical properties ensures the reliability, durability, and efficiency of power plants. By utilizing special steel, power generation companies can enhance their equipment's performance and reduce maintenance costs, ultimately contributing to the sustainable and reliable production of electricity.
- Q:How does special steel contribute to the manufacturing of automotive engine components?
- Special steel plays a crucial role in the manufacturing of automotive engine components as it offers exceptional strength, durability, and heat resistance properties. It allows for the production of lighter and more fuel-efficient engines without compromising on performance. Special steel also ensures reliable and efficient functioning of engine parts, such as pistons, crankshafts, valves, and connecting rods, resulting in improved overall engine performance and longevity.
- Q:What are the environmental impacts of producing special steel?
- The production of special steel can have several environmental impacts. Firstly, the extraction of raw materials, such as iron ore and coal, can lead to habitat destruction and soil erosion. Additionally, the energy-intensive processes involved in steel production, such as smelting and refining, contribute to greenhouse gas emissions, air pollution, and climate change. Moreover, the disposal of waste materials, including slag and dust, can contaminate water sources and harm aquatic life. It is crucial to implement sustainable practices and technologies to mitigate these environmental impacts and ensure responsible steel production.
- Q:What are the requirements for special steel used in surgical instruments?
- The requirements for special steel used in surgical instruments are quite stringent due to the critical nature of their application in medical procedures. First and foremost, the steel must have excellent corrosion resistance to withstand the repeated exposure to body fluids and chemicals used in sterilization processes. This ensures that the instruments remain durable, hygienic, and safe for use. Another essential requirement is high strength and hardness, as surgical instruments must be able to withstand the forces exerted during procedures without bending, breaking, or losing their sharpness. Additionally, the steel should possess excellent wear resistance to maintain its cutting edge for an extended period, reducing the need for frequent sharpening or replacement. Biocompatibility is another crucial factor for surgical instruments. The steel should not cause any adverse reactions when in contact with living tissue or fluids, minimizing the risk of infection or complications for patients. This requires the absence of harmful elements or impurities that may trigger allergic responses or toxicity. Furthermore, the steel used in surgical instruments must be highly sterilizable. It should be capable of withstanding high temperatures during autoclaving or other sterilization methods without undergoing significant changes in its physical or mechanical properties. Lastly, the steel should be easily workable, allowing for precision manufacturing processes such as forging, machining, and polishing to create intricate instrument designs. This ensures that surgical instruments have the necessary shape, size, and surface finish required to perform specific tasks effectively. Overall, the requirements for special steel used in surgical instruments encompass corrosion resistance, strength, hardness, wear resistance, biocompatibility, sterilizability, and workability to ensure the instruments meet the demanding standards of the medical field.
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Reinforcing Bars Hot Rolled Steel Bar
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 110 m.t.
- Supply Capability:
- 500000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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