• Bs4449 Steel Rebars for Concrete Building System 1
  • Bs4449 Steel Rebars for Concrete Building System 2
  • Bs4449 Steel Rebars for Concrete Building System 3
  • Bs4449 Steel Rebars for Concrete Building System 4
  • Bs4449 Steel Rebars for Concrete Building System 5
  • Bs4449 Steel Rebars for Concrete Building System 6
Bs4449 Steel Rebars for Concrete Building

Bs4449 Steel Rebars for Concrete Building

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 m.t.
Supply Capability:
50000 m.t./month

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Item specifice

Type:
Carbon Steel
Shape:
Steel Round Bar

Bs4449 Steel Rebars for Concrete Building

Description of Bs4449 Steel Rebars :

1, Diameter: 5.5mm-10mm rounds reinforcing steel bar

                       10m- 40 rods reinforcing Bs4449 Steel Rebars

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 Bs4449 Steel Rebars :

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

Product Show of Bs4449 Steel Rebars :

Verified Suppliers Bs4449 Deformed Steel Bar Manufacturer


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.

Verified Suppliers Bs4449 Deformed Steel Bar ManufacturerVerified Suppliers Bs4449 Deformed Steel Bar Manufacturer 

 

FAQ:

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:How does special steel contribute to electrical conductivity?
Special steel contributes to electrical conductivity by having specific alloying elements, such as chromium, nickel, and manganese, that enhance the material's conductivity properties. These alloying elements improve the steel's ability to carry electrical current by increasing its electron mobility and reducing resistance. Additionally, special steel can be heat-treated to further optimize its electrical conductivity, making it suitable for various electrical applications.
Q:What are the factors to consider when selecting special steel for a specific application?
When choosing special steel for a particular use, there are several critical factors to take into account: 1. Mechanical properties play a crucial role in determining the steel's suitability for the application. Strength, hardness, toughness, and ductility are all important considerations. Matching the steel's mechanical properties to the specific requirements of the application is essential to achieve optimal performance and ensure safety. 2. The steel's resistance to corrosion is another key factor to consider. Different environments, such as marine, chemical, or high-temperature conditions, may necessitate the use of corrosion-resistant alloys or coatings. This is vital to ensure the steel's longevity and reliability in service. 3. Temperature resistance is crucial in many applications. The steel must be able to withstand high or low temperatures without compromising its mechanical properties. Factors like thermal expansion, thermal conductivity, and resistance to thermal fatigue should be taken into account to ensure effective performance in the intended environment. 4. If welding or fabricating the steel into complex shapes is necessary, the ease of weldability and fabricability becomes an important consideration. Certain steels may require specialized welding techniques or preheating to prevent cracking or distortion during fabrication. 5. Cost is a significant consideration as well. It is important to find a balance between the desired properties of the steel and the available budget. This ensures cost-effectiveness without compromising performance or safety. 6. The availability of the chosen steel grade in the required form, size, and quantity is another critical factor. It is crucial to ensure that the selected steel can be easily sourced and obtained within the required timeframe. This helps to avoid project delays or cost overruns. 7. Compliance with industry-specific standards, specifications, or regulations is essential. Depending on the industry or application, there may be specific requirements that the steel must meet. Selecting a steel grade that complies with these standards is necessary to ensure compliance and maintain necessary certifications or approvals. By considering these factors, engineers and manufacturers can make well-informed decisions when choosing special steel for specific applications. This ensures optimal performance, durability, and safety.
Q:What is the role of research and development in advancing special steel technology?
The advancement of special steel technology relies heavily on research and development (R&D). Special steel, which refers to steel alloys with enhanced properties like high strength, corrosion resistance, heat resistance, or electrical conductivity, benefits greatly from R&D efforts. R&D activities are crucial for pushing the boundaries of special steel technology and creating new and improved alloys. Scientists and engineers continuously research and explore new compositions, manufacturing processes, and heat treatment techniques to enhance the properties and performance of special steels. One of the primary roles of R&D in advancing special steel technology involves discovering and developing new alloy compositions. R&D teams analyze the properties of different elements and their interactions to design steel alloys with desired characteristics. Through experiments and testing, they optimize the alloy to meet specific application requirements and enhance properties like strength, hardness, toughness, or other desirable traits. Additionally, R&D focuses on developing innovative manufacturing processes for special steel production. Techniques such as vacuum melting, rapid solidification, or powder metallurgy are employed to achieve a refined microstructure and improved mechanical properties. R&D teams work on optimizing these processes to enhance the overall quality, efficiency, and cost-effectiveness of special steel production. R&D also plays a crucial role in improving heat treatment techniques for special steels. Heat treatment is a critical step in fabricating special steels as it helps achieve desired microstructures and properties. R&D endeavors to optimize heat treatment parameters like temperature, time, and cooling rates to enhance the mechanical properties and performance of special steels. Furthermore, R&D contributes to the development of new testing and characterization methods for special steels. This enables the evaluation and validation of properties and performance under various conditions. Advanced techniques like electron microscopy, X-ray diffraction, and mechanical testing are employed to assess microstructural features, phase transformations, and mechanical behavior. Overall, R&D activities are indispensable for advancing special steel technology. Through continuous research, innovation, and optimization, R&D teams contribute to the development of new and improved alloys, manufacturing processes, heat treatment techniques, and testing methods. This ultimately leads to the advancement of special steel technology and its applications in industries like automotive, aerospace, energy, and construction.
Q:How is corrosion-resistant steel different from regular steel?
Corrosion-resistant steel, also known as stainless steel, is different from regular steel due to its composition and properties. Unlike regular steel, which is primarily made of iron and carbon, corrosion-resistant steel contains high amounts of chromium and other alloying elements. These additional elements create a protective layer on the surface of the steel, making it resistant to corrosion caused by exposure to moisture, chemicals, and other environmental factors. Regular steel, on the other hand, is more prone to rusting and corrosion, requiring additional protective coatings or treatments to prevent degradation.
Q:How does special steel contribute to the pharmaceutical industry?
Special steel contributes to the pharmaceutical industry by providing the necessary materials for the production of high-quality equipment and tools. It is used in the manufacturing of pharmaceutical machinery, such as reactors, mixers, and pumps, that require corrosion resistance and hygienic properties. Special steel also plays a crucial role in the construction of storage and transportation containers for pharmaceutical products, ensuring their safety and efficacy.
Q:How does special steel contribute to reducing energy consumption?
Special steel contributes to reducing energy consumption in several ways. Firstly, special steel is known for its high strength and durability, allowing it to be used in the construction of lightweight structures. This helps in reducing the overall weight of vehicles, machinery, and buildings, resulting in lower energy requirements for their operation and transportation. Additionally, special steel is used in the manufacturing of energy-efficient appliances and equipment, such as turbines and generators, which optimize energy conversion and minimize energy losses. Furthermore, special steel is often used in the production of renewable energy systems like wind turbines and solar panels, enabling the efficient generation of clean energy. Overall, the unique properties of special steel help in achieving energy efficiency goals and promoting sustainable practices.
Q:How does special steel contribute to improving product efficiency in energy-intensive processes?
Special steel contributes to improving product efficiency in energy-intensive processes by providing enhanced strength, durability, and resistance to corrosion and wear. These properties allow for the development of more efficient machinery and equipment, reducing energy losses due to friction and wear. Additionally, special steel's high heat resistance enables the production of components that can withstand extreme temperatures, improving overall energy efficiency in processes such as high-temperature heat treatment or combustion. Moreover, its superior mechanical properties enable the construction of lighter and more compact designs, leading to reduced energy consumption during transportation and operation. Overall, special steel plays a vital role in optimizing energy-intensive processes by enhancing performance, longevity, and energy efficiency of products and equipment.
Q:How is heat-resistant steel used in the production of furnaces and boilers?
Heat-resistant steel is used in the production of furnaces and boilers due to its ability to withstand high temperatures without deformation or failure. This type of steel is specifically designed to maintain its strength and structural integrity even when exposed to extreme heat conditions. By using heat-resistant steel, furnaces and boilers can efficiently generate and contain high levels of heat, ensuring a safe and reliable operation.
Q:How is HSLA steel used in the construction industry?
HSLA steel, or High-Strength Low-Alloy steel, is widely used in the construction industry due to its superior strength and durability. It is commonly utilized in the construction of bridges, buildings, and other infrastructure projects. HSLA steel's high tensile strength allows for the creation of lighter and more efficient structures, reducing material costs and environmental impact. Additionally, its resistance to corrosion and atmospheric conditions makes it suitable for outdoor applications, ensuring the longevity of the constructed assets.
Q:What are the different methods for case hardening special steel?
Case hardening special steel can be achieved through various methods, each with its own set of advantages and applications. 1. Carburizing: By subjecting the steel to high temperatures within a carbon-rich environment, a durable and resistant outer layer is formed as carbon atoms diffuse into the surface. Gas carburizing, pack carburizing, or liquid carburizing are some techniques employed for this process. 2. Nitriding: Steels with high alloy content benefit from nitriding, wherein the steel is heated in an environment abundant in nitrogen. This leads to the formation of a tough and corrosion-resistant layer as nitrogen atoms penetrate the surface. 3. Induction hardening: Through induction heating, the surface of the steel is selectively heated, followed by a rapid quenching process. This results in a hardened layer suitable for localized hardening requirements, such as gears or shafts. 4. Flame hardening: Large parts or components that are challenging to treat with other methods can be effectively hardened through the application of a high-temperature flame to the steel surface, followed by rapid cooling. 5. Laser hardening: Achieving precision and localized hardening, laser hardening involves the use of a laser beam to heat and harden specific areas of the steel. This method allows for precise control over the depth and hardness of the hardened layer. The selection of a case hardening method depends on various factors, including the desired hardness, the size and shape of the part, and the specific requirements of the application. Each method possesses its own advantages and limitations.

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