Steel Rebar Size for Construction System 1

Steel Rebar Size for Construction System 2

Steel Rebar Size for Construction System 3

Steel Rebar Size for Construction System 4

Steel Rebar Size for Construction

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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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Steel Rebar Size for Construction

Description of Steel Rebar Size:

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

10m- 40 rods reinforcing Steel Rebar Size

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 Steel Rebar Size:

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 Steel Rebar Size:

Workshop

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 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.

Contact Us:

Verified Suppliers Bs4449 Deformed Steel Bar Manufacturer

Q:What are the main factors affecting the fracture toughness of special steel?: The fracture toughness of special steel can be affected by several key factors, encompassing: 1. Alloy composition: The fracture toughness of the steel can be greatly influenced by its specific chemical composition, including the type and amount of alloying elements. Elements like chromium, nickel, and molybdenum have the potential to enhance toughness by promoting the formation of fine-grained microstructures or improving the steel's ability to resist crack propagation. 2. Heat treatment: Determining the fracture toughness of the steel is heavily reliant on the temperature and duration of the heat treatment process, as well as the subsequent cooling. Proper heat treatment can refine the microstructure and eliminate any potential defects, thereby enhancing the steel's resistance to fracture. 3. Microstructure: The fracture toughness of the steel is profoundly impacted by its microstructure, encompassing grain size and distribution, phase composition, and the presence of inclusions. Generally, finer-grained structures exhibit higher toughness due to their improved resistance to crack propagation. 4. Existence of defects: The presence of defects, such as cracks, voids, or inclusions, within the steel can act as stress concentrators, ultimately diminishing its fracture toughness. These defects can initiate cracks and facilitate their propagation, ultimately leading to reduced toughness. 5. Temperature: Fracture toughness is contingent upon temperature, and the behavior of special steel can significantly vary at different temperature ranges. Some steels exhibit improved toughness at lower temperatures due to microstructural transformations, while others may experience decreased toughness at elevated temperatures due to material softening. 6. Loading conditions: The fracture toughness of special steel can also be impacted by the loading conditions, including the rate of loading or the presence of dynamic loading. Higher loading rates or dynamic loading can result in reduced toughness, as the steel may not have sufficient time to deform and absorb energy before fracturing. 7. Mechanical properties: The mechanical properties of the steel, such as strength, hardness, and ductility, can influence its fracture toughness. Higher strength and hardness can sometimes lead to decreased toughness, as the material becomes more brittle. However, a balance between strength and toughness can be achieved by carefully selecting the alloy composition and heat treatment parameters. In summary, the fracture toughness of special steel is determined by a complex interplay of various factors, including alloy composition, heat treatment, microstructure, defects, temperature, loading conditions, and mechanical properties. By optimizing these factors, the fracture toughness of special steel can be enhanced for specific applications.

Q:What are the properties of weathering steel?: Weathering steel, also known as corten steel, possesses several distinctive properties. It exhibits high resistance to corrosion, making it suitable for outdoor structures without the need for protective coatings. Its unique composition allows for the formation of a stable rust-like appearance, providing an aesthetically pleasing and natural finish. Moreover, weathering steel has excellent strength and durability, making it ideal for various applications, including bridges, buildings, and architectural elements.

Q:What are the properties of electrical resistance steel?: Electrical resistance steel, also known as resistivity steel, possesses high electrical resistance due to its composition and structure. It has the ability to impede the flow of electric current, converting electrical energy into heat. This property makes it suitable for various applications, such as heating elements, resistors, and electrical wirewound resistors. Additionally, electrical resistance steel exhibits good thermal stability and corrosion resistance, making it a reliable choice for electrical and electronic devices.

Q:What are the main characteristics of magnetic steel forgings?: Magnetic steel forgings exhibit several key characteristics that make them highly desirable in various industries. Firstly, magnetic steel forgings possess excellent magnetic properties, allowing them to be easily magnetized and demagnetized. This property makes them suitable for applications where magnetism is required, such as in electrical motors and generators. Secondly, magnetic steel forgings possess high strength and durability. Due to the forging process, the steel is compressed and shaped, resulting in a dense and uniform microstructure. This enhances the mechanical properties of the steel, including its tensile strength, impact resistance, and fatigue strength. As a result, magnetic steel forgings can withstand heavy loads and harsh operating conditions, making them ideal for use in demanding applications such as automotive components, industrial machinery, and aerospace parts. Another characteristic of magnetic steel forgings is their excellent corrosion resistance. The forging process helps to refine the grain structure of the steel, making it less susceptible to corrosion and oxidation. This property is crucial in industries where components are exposed to corrosive environments or high temperatures, such as marine applications or oil and gas equipment. Furthermore, magnetic steel forgings offer good machinability and weldability. The forging process not only enhances the mechanical properties of the steel but also improves its machinability, allowing it to be easily shaped and modified into intricate designs. Additionally, magnetic steel forgings can be readily welded without compromising their integrity, providing flexibility in manufacturing and assembly processes. Lastly, magnetic steel forgings exhibit excellent dimensional stability. The forging process involves controlled heating and cooling, which helps to minimize dimensional changes and distortions. This ensures that the final product maintains its shape and dimensions, enabling precise fit and compatibility with other components. In summary, the main characteristics of magnetic steel forgings include excellent magnetic properties, high strength and durability, corrosion resistance, good machinability and weldability, and dimensional stability. These characteristics make magnetic steel forgings highly versatile and widely used in various industries, contributing to their overall success and popularity.

Q:How does special steel contribute to weight reduction in manufacturing?: Special steel contributes to weight reduction in manufacturing through its unique properties and characteristics. Special steels are designed to have high strength-to-weight ratios, allowing manufacturers to use less material while still achieving the desired strength and performance. This results in lighter and more efficient products without compromising their structural integrity. Additionally, special steels can be processed into complex shapes, enabling the production of intricate components that are both lightweight and strong. Overall, the use of special steel in manufacturing helps reduce the overall weight of products, leading to improved fuel efficiency, lower transportation costs, and increased sustainability.

Q:What are the different surface coating methods used for special steel?: There are several surface coating methods used for special steel, including electroplating, hot-dip galvanizing, powder coating, and PVD (Physical Vapor Deposition) coating. Each method provides unique properties such as corrosion resistance, improved aesthetics, and enhanced durability, depending on the specific requirements of the steel application.

Q:What are the properties and characteristics of special steel?: Special steel encompasses a type of steel that possesses distinct attributes and qualities, rendering it suitable for particular applications that demand exceptional strength, endurance, and resilience against diverse environmental factors. The properties and characteristics of special steel encompass the following: 1. Remarkable Strength: Special steel is renowned for its extraordinary strength, enabling it to endure heavy loads and extreme circumstances. This renders it ideal for applications requiring structural integrity and durability, such as the construction, automotive, and aerospace sectors. 2. Superb Resistance to Corrosion: Special steel is frequently alloyed with elements such as chromium and nickel, augmenting its resistance to corrosion and oxidation. This characteristic makes it immensely valuable in environments where exposure to moisture, chemicals, or extreme temperatures can rapidly deteriorate conventional steel. 3. Resistance to High Temperatures: Special steel is designed to maintain its mechanical properties and structural integrity even when subjected to elevated temperatures. It demonstrates exceptional thermal stability, making it suitable for applications involving intense heat, such as power generation, the oil and gas industry, and manufacturing processes. 4. Resistance to Wear: Special steel is frequently hardened and treated to enhance its resistance to wear. This trait enables it to withstand abrasive materials, friction, and erosion, making it suitable for cutting tools, machine parts, and wear-resistant components in heavy machinery. 5. Magnetic Characteristics: Certain types of special steel exhibit magnetic properties, rendering them ideal for applications in the electrical and electronics industries. Examples include electrical transformers, motors, generators, and magnetic shielding. 6. Machinability: Special steel is designed to be easily machined, enabling it to be shaped, formed, and fabricated into various components with precision. This attribute is crucial for industries requiring the production of intricate and complex parts in an efficient manner. 7. Cost-effectiveness: Despite possessing unique properties, special steel often proves to be cost-effective compared to other materials with similar performance characteristics. Its long lifespan, resistance to corrosion and wear, and versatility make it the preferred choice for numerous applications, offering a balance between performance and cost. In summary, special steel combines exceptional strength, resistance to corrosion and wear, heat resistance, and magnetic properties, making it a versatile material utilized in diverse industries. Its distinctive properties render it an indispensable component in applications where standard steel or alternative materials would not suffice.

Q:How does the heat treatment process affect the hardness of special steel?: The heat treatment process has a significant impact on the hardness of special steel. Heat treatment involves heating the steel to a specific temperature, holding it at that temperature for a certain period, and then cooling it at a controlled rate. This process alters the microstructure of the steel, which in turn affects its hardness. One of the most common heat treatment techniques is quenching, which involves rapid cooling of the steel. Quenching results in the formation of a hard and brittle microstructure called martensite. The rapid cooling prevents the formation of other softer microstructures, such as pearlite or ferrite, and thus increases the hardness of the steel. Another heat treatment process that affects the hardness of special steel is tempering. After quenching, the steel is often tempered to reduce its brittleness and improve its toughness. Tempering involves reheating the quenched steel to a lower temperature and then slowly cooling it. This process allows for the transformation of some of the martensite into a more ductile microstructure, such as tempered martensite or bainite. These microstructures retain some of the hardness of martensite but also provide improved toughness and resistance to fracture. In summary, the heat treatment process significantly affects the hardness of special steel. Quenching increases hardness by forming martensite, while tempering balances hardness with improved toughness. The specific heat treatment parameters, such as temperature and cooling rate, can be adjusted to achieve the desired hardness and mechanical properties for different applications of special steel.

Q:How is stainless tool steel used in the manufacturing of surgical instruments?: Stainless tool steel is commonly used in the manufacturing of surgical instruments due to its exceptional properties such as corrosion resistance, high strength, and durability. This type of steel ensures that surgical instruments can withstand frequent sterilization processes without corroding or deteriorating. Additionally, stainless tool steel allows for precise shaping and sharpening of surgical instruments, ensuring their effectiveness and longevity in medical procedures.

Q:How does special steel respond to welding?: Special steel, also known as alloy steel, exhibits unique properties that affect its response to welding. Unlike regular carbon steel, special steel contains additional alloying elements such as chromium, nickel, or molybdenum, which enhance its strength, corrosion resistance, and heat resistance. When it comes to welding, special steel generally responds well due to its high tensile strength and toughness. However, there are a few considerations to keep in mind. The high carbon content in some special steels can lead to cracking or brittleness during the welding process. To prevent this, preheating the material and using appropriate welding techniques are crucial. It is important to choose the right welding method based on the specific type of special steel being used. For instance, gas tungsten arc welding (GTAW) or tungsten inert gas (TIG) welding is commonly preferred for welding stainless steel, as it ensures excellent control over the heat input and produces high-quality welds with minimal distortion. Furthermore, special steel often requires the use of special welding consumables, such as electrodes or filler wires, specifically designed for the particular alloy composition. These consumables help maintain the desired mechanical properties and prevent the formation of brittle phases in the weld. Post-weld heat treatment is also essential for certain special steels, as it helps relieve residual stresses and improves the overall weldment's properties. This process can involve annealing, normalizing, or tempering, depending on the specific steel grade and application requirements. In conclusion, special steel responds well to welding, but it's essential to consider its alloy composition, carbon content, and specific welding techniques. By following proper welding procedures, using appropriate consumables, and applying necessary heat treatments, high-quality welds can be achieved, ensuring the integrity and performance of the special steel components.

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