Bs4449 Steel Rebars for Concrete Building

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

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 50000 m.t./month

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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 :

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 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:What are the limitations of using special steel in marine environments?: Special steel can be susceptible to corrosion and pitting when exposed to saltwater in marine environments. Additionally, the high cost and difficulty in sourcing and maintaining special steel can also be limiting factors.

Q:How does special steel contribute to the aerospace turbine industry?: The aerospace turbine industry greatly relies on special steel due to its unique advantages that cannot be found in other materials. Special steel is renowned for its exceptional strength and durability, making it perfect for enduring the extreme conditions within aerospace turbines. The demanding temperatures, pressures, and rotational speeds experienced by turbine components necessitate a material that can withstand these harsh conditions without compromising performance or safety. Furthermore, special steel demonstrates excellent heat resistance and corrosion resistance properties, which are vital for the longevity of turbine components. Its ability to resist oxidation and corrosion enables special steel to maintain its structural integrity and functionality over extended periods, reducing the need for frequent maintenance or replacement. Moreover, special steel offers outstanding machinability and formability, enabling the production of intricate and complex turbine components. This facilitates the creation of highly efficient and precisely engineered turbine blades, vanes, and other crucial parts necessary for the optimal performance of aerospace turbines. Additionally, special steel provides the necessary characteristics for enhanced fuel efficiency in aerospace turbines. By utilizing high-strength special steel alloys, turbine manufacturers can design lighter and more aerodynamic components, resulting in reduced overall weight and drag. Consequently, this leads to increased fuel efficiency and lower emissions, contributing to a more sustainable and environmentally friendly aviation industry. In conclusion, special steel plays a vital role in the aerospace turbine industry by delivering the required strength, durability, heat resistance, corrosion resistance, and machinability essential for the efficient and dependable operation of turbine components. Its contribution extends to improved fuel efficiency, reduced maintenance needs, and enhanced overall performance, establishing it as an indispensable material for the aerospace turbine industry.

Q:What are the different forging techniques for special steel parts?: To produce special steel parts, there are various forging techniques available, which depend on the desired shape, size, and properties of the final product. Some commonly used techniques for forging special steel parts include: 1. Utilizing open-die forging involves shaping the metal between flat dies or anvils. It is suitable for simpler shapes and provides flexibility in producing a wide range of sizes. 2. Closed-die forging, also known as impression-die forging, involves shaping the metal within a closed die that contains the desired shape and allows for higher precision. It is commonly used for producing complex and intricate shapes. 3. Upset forging involves compressing and shaping the metal by applying pressure to the ends of the workpiece. This technique is often used to create parts with increased diameter or reduced length, such as bolts and nails. 4. Ring rolling is a technique that shapes a cylindrical workpiece by applying pressure from rotating rolls. It is commonly used for producing seamless rings with enhanced strength and durability, for example, gears, bearings, and flanges. 5. Isothermal forging is performed by forging the metal at a constant temperature, usually within a specially designed furnace. This technique allows for precise control over the metallurgical properties of the final product, resulting in improved mechanical properties and reduced residual stress. 6. Precision forging, also known as near-net-shape forging, uses specially designed dies to produce parts with minimal finishing operations. It is commonly used for complex shapes and high-volume production, ensuring cost-effectiveness and dimensional accuracy. 7. Press forging involves shaping the metal by applying pressure through a mechanical or hydraulic press. It allows for precise control over the forging process and is often used for producing high-strength, large-sized components. Each of these forging techniques offers unique advantages and is suitable for different applications. The appropriate selection of the forging technique for special steel parts depends on factors such as the desired shape, size, strength, and cost-effectiveness of the final product.

Q:Can special steel be used in the renewable energy sector?: Yes, special steel can be used in the renewable energy sector. Special steel, also known as alloy steel, offers enhanced properties such as high strength, durability, and corrosion resistance, making it suitable for various applications in renewable energy technologies. In wind energy, special steel is utilized for manufacturing wind turbine components. Wind turbine towers require strong and lightweight materials to withstand the dynamic loads and harsh environmental conditions. Special steel alloys, such as high-strength low-alloy (HSLA) steel, provide the necessary strength-to-weight ratio, ensuring the structural integrity of wind turbine towers. Solar energy systems also benefit from special steel. Concentrated solar power (CSP) plants utilize mirrors or lenses to focus sunlight, generating intense heat for electricity generation. Special steel alloys with high thermal conductivity and resistance to high temperatures are used in the construction of these components, ensuring efficient energy capture and durability. Moreover, special steel is employed in the manufacturing of hydroelectric power generation equipment. Turbine components, such as blades, shafts, and runners, require materials with high strength and resistance to erosion and cavitation. Special steel alloys, such as stainless steel and tool steel, possess these characteristics, ensuring the longevity and reliability of hydroelectric power systems. In summary, special steel finds numerous applications in the renewable energy sector. Its properties, including high strength, durability, and corrosion resistance, make it suitable for wind energy, solar energy, and hydroelectric power generation. By using special steel, the renewable energy sector can enhance the performance, efficiency, and lifespan of various renewable energy technologies.

Q:What are the different surface hardening methods used for special steel?: There are several surface hardening methods used for special steel, including carburizing, nitriding, induction hardening, flame hardening, and laser hardening.

Q:What are the properties of high-temperature steel?: High-temperature steel possesses several key properties including excellent strength, resistance to thermal fatigue, oxidation and corrosion resistance, good thermal conductivity, and the ability to maintain its mechanical properties even at elevated temperatures.

Q:What are the common failures or issues with special steel?: Some common failures or issues with special steel can include brittleness, poor weldability, susceptibility to corrosion, and difficulty in heat treatment. Additionally, defects such as inclusions, voids, or cracks can also be observed, impacting the overall integrity and performance of the steel.

Q:What are the different methods of surface shot blasting for special steel?: There are several methods of surface shot blasting for special steel, including wheel blasting, air blasting, and centrifugal blasting. Wheel blasting involves using a rotating wheel to propel abrasive particles onto the steel surface, while air blasting uses compressed air to propel the particles. Centrifugal blasting involves a spinning rotor that propels the particles onto the steel surface. These methods help remove rust, scale, and other contaminants from the steel surface, preparing it for further treatment or coating.

Q:Can special steel be used in the medical industry?: Yes, special steel can be used in the medical industry. It is commonly employed in the production of surgical instruments, medical implants, and equipment due to its high strength, corrosion resistance, and biocompatibility. Special steel alloys, such as stainless steel and titanium alloys, are extensively utilized in various medical applications to ensure patient safety and enhance the effectiveness of medical procedures.

Q:How does special steel contribute to the energy generation industry?: Special steel plays a crucial role in the energy generation industry by contributing to the efficiency, reliability, and safety of various components and equipment used in power plants. One key area where special steel is essential is in the construction of turbine blades and generator rotors. These components are subjected to extreme temperatures, pressures, and mechanical stresses. Special steels, such as superalloys, are specifically designed to withstand these harsh conditions, ensuring the longevity and performance of these critical parts. By using special steel, power plants can operate at higher temperatures and pressures, leading to increased energy efficiency and power output. In addition to turbine components, special steel is also used in the construction of boilers and heat exchangers. These components are exposed to high temperatures and corrosive environments. Special steel alloys, such as stainless steels, are highly resistant to corrosion and can withstand the harsh conditions encountered in power plant operations. This corrosion resistance ensures the longevity and reliability of these components, reducing maintenance costs and downtime. Furthermore, special steel is utilized in the construction of transmission and distribution infrastructure. Steel cables and conductors are used to transmit electricity over long distances, and special steel alloys provide the necessary strength and conductivity for efficient power transmission. Additionally, steel is used in the construction of towers, poles, and other support structures, ensuring the stability and reliability of the electrical grid. Moreover, special steel is also vital in the production of nuclear energy. Nuclear power plants require materials that can withstand extreme temperatures, high radiation levels, and corrosive environments. Special steel alloys, such as stainless steels and nickel-based alloys, are specifically designed to meet these requirements, providing the necessary strength, resistance to radiation, and corrosion resistance for the safe and efficient operation of nuclear reactors. In summary, special steel is an integral part of the energy generation industry. Its unique properties and capabilities contribute to the efficiency, reliability, and safety of various components and equipment used in power plants. By using special steel, power plants can increase energy efficiency, reduce maintenance costs, and ensure the longevity and performance of critical infrastructure, ultimately supporting the sustainable and reliable generation of electricity.

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