Bs Standard Rebar En Standard Import Bars

Bs Standard Rebar En Standard Import Bars System 1

Bs Standard Rebar En Standard Import Bars System 2

Bs Standard Rebar En Standard Import Bars System 3

Bs Standard Rebar En Standard Import Bars System 4

Bs Standard Rebar En Standard Import Bars

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 50000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Bs Standard Rebar En Standard Import Bars

Description of Bs Standard Rebar:

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

10m- 40 rods reinforcing Bs Standard Rebar

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 Bs Standard Rebar:

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 Bs Standard Rebar:

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: How is special steel used in the manufacturing of cutting tools?: Special steel is used in the manufacturing of cutting tools due to its exceptional properties such as high hardness, toughness, and wear resistance. These qualities allow special steel to withstand the intense forces and abrasion involved in cutting operations. Additionally, it can retain its sharpness for longer periods, ensuring efficient and precise cutting.

Q: What are the different methods of preventing intergranular corrosion in special steel?: Various techniques are available for preventing intergranular corrosion in special steel. 1. Heat Treatment: A highly effective approach involves subjecting the steel to solution annealing, a heat treatment process. This method entails heating the steel to a high temperature and rapidly cooling it. By doing so, any precipitates or carbides that may have formed along the grain boundaries are dissolved, thereby reducing the risk of intergranular corrosion. 2. Alloying: Another strategy is to introduce specific alloying elements into the steel composition. For instance, the addition of elements such as chromium and molybdenum can enhance the steel's resistance to intergranular corrosion. These alloying elements create a protective oxide layer on the surface, preventing corrosion along the grain boundaries. 3. Passivation: Passivation involves treating the steel surface with chemicals that establish a protective layer. This layer acts as a barrier, safeguarding the grain boundaries from the corrosive environment. Common passivation techniques include acid pickling and electrochemical methods. 4. Sensitization Control: Particular attention must be given to controlling the sensitization process. Sensitization occurs when the steel is exposed to high temperatures for an extended period, resulting in the precipitation of chromium carbides along the grain boundaries and rendering the steel vulnerable 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 the utilization of 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 corrosive agents from attacking the grain boundaries. It is important to consider that the choice of method depends on the specific type of special steel and its intended application. Selecting the most suitable approach requires a comprehensive understanding of the steel's composition, processing conditions, and the expected corrosive environment.

Q: What are the different forging techniques for special steel parts?: There are several forging techniques that can be used for special steel parts, including open die forging, closed die forging, and ring rolling. Open die forging involves shaping the steel by repeated hammering or pressing between flat dies, allowing for a range of shapes and sizes. Closed die forging, on the other hand, utilizes specially designed dies to shape the steel into a specific form, resulting in higher precision. Ring rolling involves shaping a circular piece of steel into a seamless ring by applying pressure from radial rolls. These techniques offer varying advantages depending on the desired shape, size, and properties of the special steel part being forged.

Q: How does special steel perform in hydrogen embrittlement conditions?: Special steel, known by other names like high-strength steel or alloy steel, possesses remarkable resistance to conditions that cause hydrogen embrittlement. Hydrogen embrittlement occurs when hydrogen atoms infiltrate the metallic lattice structure, causing it to become brittle and prone to fractures when subjected to stress. Given their distinct composition and microstructure, special steels are engineered to endure harsh environments, including those susceptible to hydrogen embrittlement. These steels often contain alloying elements such as nickel, chromium, and molybdenum, which enhance their ability to withstand cracking induced by hydrogen. The presence of these alloying elements in special steel facilitates the development of protective oxide layers on the steel's surface. These layers act as a barrier, preventing hydrogen atoms from diffusing into the metal matrix. Moreover, these elements can capture and bind hydrogen atoms, reducing their mobility and minimizing their negative impact on the steel's mechanical properties. Furthermore, special steels frequently undergo diverse heat treatments and processing techniques, like quenching and tempering, to further enhance their resistance to hydrogen embrittlement. These processes refine the steel's microstructure, enhancing its strength, toughness, and ductility while minimizing the risk of hydrogen-induced cracking. In general, special steel outperforms standard steels in hydrogen embrittlement conditions. Its unique composition, microstructure, and processing techniques make it highly resilient to the detrimental effects of hydrogen atoms. As a result, special steel ensures the structural integrity and reliability of components and structures operating in hydrogen-rich environments.

Q: How does special steel contribute to the safety of infrastructure?: Special steel contributes to the safety of infrastructure by providing enhanced strength, durability, and resistance to corrosion. This type of steel is specifically designed and manufactured to withstand extreme conditions and load-bearing requirements, making it ideal for critical infrastructure components such as bridges, buildings, and pipelines. The use of special steel ensures that these structures can withstand natural disasters, heavy traffic, and other potential threats, reducing the risk of collapse or failure and enhancing overall safety for users and communities.

Q: How is tool steel used in the manufacturing of molds and dies?: Tool steel is used in the manufacturing of molds and dies due to its high hardness, toughness, and wear resistance properties. It is used to create molds and dies that are capable of withstanding the high pressures and temperatures involved in various manufacturing processes, such as injection molding and metal stamping. Tool steel ensures that the molds and dies maintain their shape and functionality over prolonged use, resulting in efficient and accurate production of various products.

Q: What are the main factors affecting the machinability of special steel?: The machinability of special steel, which refers to its ability to be easily cut, shaped, and formed, is influenced by several key factors. 1. Alloy Composition: The chemical composition of special steel plays a crucial role in its machinability. Elements such as carbon, chromium, nickel, and molybdenum can significantly affect the material's hardness, toughness, and cutting properties. Higher carbon content, for example, can increase the hardness of steel, making it more difficult to machine. 2. Hardness: The hardness of special steel is a critical factor in determining its machinability. Harder steels require more cutting force and generate more heat during machining, which can lead to increased tool wear and reduced efficiency. Softer steels, on the other hand, are generally easier to machine but may result in lower tool life. 3. Heat Treatment: The heat treatment process used on special steel can greatly impact its machinability. Heat treatments such as annealing, tempering, or quenching can alter the steel's microstructure and mechanical properties, affecting how it responds to cutting forces. Properly heat-treated steel can improve machinability by reducing hardness and increasing toughness. 4. Grain Size: The size and distribution of grains within the steel also affect its machinability. Fine-grained steel tends to have improved machinability compared to coarse-grained steel, as smaller grains offer more uniform cutting conditions and reduce the risk of tool damage. 5. Cutting Speed and Feed Rate: Machining parameters, including cutting speed and feed rate, directly impact the machinability of special steel. Higher cutting speeds can increase tool wear and generate excessive heat, affecting the surface finish and dimensional accuracy. Similarly, incorrect feed rates can cause chip formation problems, leading to poor machinability. 6. Cutting Tool Selection: The choice of cutting tool material and geometry is critical in achieving optimal machinability. Different tool materials, such as carbide or high-speed steel, have varying wear resistance and cutting properties. The tool geometry, including rake angle and clearance angle, also affects chip formation, cutting forces, and heat generation. 7. Lubrication and Cooling: Adequate lubrication and cooling during machining are vital to enhance machinability. Lubricants or coolants help reduce friction and heat, prolong tool life, and improve chip evacuation. They also prevent workpiece deformation and improve surface finish. Considering these factors, it is essential to carefully select the appropriate special steel grade, optimize machining parameters, and use suitable cutting tools and lubrication to achieve the desired machinability and maximize productivity.

Q: How is special steel used in the construction industry?: Special steel is used in the construction industry for various applications due to its exceptional strength, durability, and resistance to corrosion. It is commonly used for manufacturing structural components, such as beams, columns, and girders, that require high load-bearing capacities. Special steel is also utilized in the construction of bridges, towers, and high-rise buildings to ensure structural integrity and safety. Additionally, it finds application in reinforcing concrete structures, creating strong and long-lasting foundations. Overall, special steel plays a crucial role in enhancing the strength and stability of construction projects.

Q: How is special steel used in the manufacturing of industrial machinery?: Special steel is used in the manufacturing of industrial machinery due to its exceptional strength, durability, and resistance to high temperatures and corrosion. It is commonly employed to create components such as gears, shafts, bearings, and tools, ensuring optimal performance and longevity of the machinery in demanding industrial environments.

Q: What are the different methods for shot peening special steel?: The fatigue strength and performance of special steels can be improved through the widely used method of shot peening. Different methods exist for shot peening special steel, each with its own advantages and considerations. One method is air shot peening, which involves propelling small steel shots at high speeds using compressed air. This method is commonly used and effective for treating large surfaces and achieving uniform coverage. However, it may not be suitable for delicate or highly sensitive materials. Another method is wheel shot peening, where steel shots are propelled using a rotating wheel. This method offers better control and accuracy, making it effective for treating small or intricate parts such as gears and shafts. Wet shot peening is a method performed in a wet environment, typically using a mixture of water and shot media. It provides increased control over shot flow and reduces dust formation. This method is preferred for special steels sensitive to heat or at risk of distortion. Ultrasonic shot peening is an advanced method that utilizes high-frequency vibrations to propel the shot media onto the steel surface. It offers enhanced control over shot velocity and impact energy, resulting in improved surface finish and fatigue life. It is particularly useful for thin or delicate special steels. Laser shot peening employs laser pulses to generate shockwaves on the steel surface, creating compressive residual stresses. This method is highly precise and can be controlled to treat specific areas or patterns. It is commonly used for special steels requiring localized treatment or with complex geometries. The selection of the shot peening method depends on various factors, including the type of special steel, component geometry, required surface finish, and desired residual stress profile. Consulting with shot peening experts or engineers is essential to determine the most suitable method for shot peening special steel.

Send your message to us

*Email

*TEL

*Quantity

*Unit