Reinforcing Twisted Steel Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 140 m.t.
- Supply Capability:
- 500000 m.t./month
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Specification
Type:
Carbon Steel
Shape:
Steel Round Bar
Reinforcing Twisted Steel Bars
Description of Reinforcing Twisted Steel Bars
1, Diameter: 5.5mm-10mm Reinforcing Twisted Steel Bars
10m- 40mm Reinforcing Twisted Steel Bars
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 Twisted Steel Bars
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 Twisted Steel Bars
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 different impact-resistant grades of special steel?
- Steel alloys known as impact-resistant grades are designed to withstand high impact and shock loads without fracturing or deforming. These grades of steel are crucial in industries like construction, mining, automotive, and defense, where resistance to impact and toughness are essential. Numerous impact-resistant grades of special steel are available, each with its own unique characteristics and properties. Some commonly used grades include: 1. AR400: This steel has a hardness of 400 Brinell (HB) and is highly resistant to abrasion and impact. It finds applications in bucket liners, crushers, and hoppers where wear resistance is critical. 2. AR500: With a hardness of 500 HB, AR500 steel offers even greater resistance to wear and impact compared to AR400. It is frequently used in heavy machinery, mining equipment, and armored vehicles. 3. AR600: This steel boasts a hardness of 600 HB, making it one of the toughest and most impact-resistant options. It is ideal for applications that require extreme wear resistance and durability, such as chutes, conveyors, and ballistic protection. 4. T-1: T-1 steel is a high-strength, low-alloy (HSLA) steel that delivers excellent impact resistance and toughness. It is commonly utilized in structural components, heavy equipment, and offshore drilling rigs, where high strength and toughness are essential. 5. QT or Quenched and Tempered Steels: These steels undergo specific heat treatment to enhance their toughness and impact resistance. They are popular in applications that demand high strength, toughness, and impact resistance, such as gears, shafts, and armor plates. It is important to note that the impact resistance of a specific steel grade depends not only on its composition but also on factors like heat treatment, fabrication techniques, and design considerations. Therefore, consulting steel manufacturers or experts is crucial in determining the most suitable impact-resistant grade for a particular application.
- Q:How is special steel used in the production of cutting inserts?
- The unique properties of special steel make it the ideal choice for producing cutting inserts. Cutting inserts are utilized in machining operations to shape and remove material from a workpiece. These inserts must possess the ability to endure high temperatures, resist wear and abrasion, and maintain their sharp cutting edges for extended periods. Commonly referred to as tool steel, special steel is specifically engineered to meet these requirements. It is an alloy that incorporates a variety of elements like chromium, tungsten, vanadium, and molybdenum, which enhance its mechanical properties. With its exceptional hardness, toughness, and resistance to high temperatures, special steel is a suitable material for cutting inserts. To further augment its properties, the special steel employed in manufacturing cutting inserts undergoes a series of processes, including heat treatment. This process involves subjecting the steel to specific temperatures and rapidly cooling it, resulting in increased strength and hardness. By undergoing heat treatment, the cutting inserts become capable of withstanding the extreme forces and temperatures encountered during machining operations. Moreover, special steel can be coated with materials like titanium nitride or diamond-like carbon to enhance its performance. These coatings contribute to the hardness, friction reduction, and overall wear resistance of the cutting inserts, ultimately extending their lifespan and improving efficiency. In conclusion, special steel is selected for the production of cutting inserts due to its remarkable hardness, toughness, high-temperature resistance, and wear resistance. These properties enable the cutting inserts to withstand the demanding conditions of machining operations and retain their sharp cutting edges for prolonged periods. As a result, material removal is carried out efficiently and precisely.
- Q:What are the different methods of improving the machinability of special steel?
- To enhance the machinability of special steel, various techniques can be employed. These techniques encompass: 1. Alloying: The machinability can be improved by incorporating specific alloying elements like sulfur, selenium, lead, or bismuth into the steel composition. These elements serve as lubricants during machining, reducing friction and cutting forces. 2. Heat treatment: Enhancing the machinability of special steel can be achieved through heat treatment processes such as annealing, normalizing, or stress relieving. These processes refine the microstructure, lower hardness, and increase ductility, facilitating easier machining. 3. Modifying the microstructure: The machinability of special steel can be enhanced by modifying its microstructure through grain refinement or controlled precipitation of carbides. Generally, fine-grained steels are easier to machine due to reduced cutting forces. 4. Surface coatings: The application of specialized coatings like titanium nitride (TiN) or diamond-like carbon (DLC) onto the surface of special steel can minimize friction, extend tool life, and enhance chip flow during machining. 5. Optimal tool selection and optimization: The choice of cutting tools with specific geometries, coatings, and cutting parameters can greatly enhance machinability. Selecting the ideal tool ensures efficient chip evacuation, minimizes heat generation, and reduces tool wear. 6. Optimization of machining parameters: Adjusting parameters such as cutting speed, feed rate, and depth of cut significantly impacts machinability. Fine-tuning these parameters helps reduce tool wear, control chip formation, and achieve superior surface finish. 7. Lubrication and cooling: Employing appropriate lubrication and cooling methods, such as cutting fluids or coolants, enhances machinability by reducing friction and heat generation during machining. This prolongs tool life and minimizes workpiece deformation. It is essential to consider that the specific technique or combination of techniques utilized to improve machinability will depend on the type of special steel and the desired machining outcome.
- Q:How does the corrosion resistance of special steel compare to regular steel?
- The corrosion resistance of special steel is generally superior to regular steel. Special steel is specifically designed to have enhanced resistance against corrosion due to its composition and manufacturing process. It often contains higher levels of alloying elements such as chromium, nickel, and molybdenum, which form a protective layer on the surface of the steel, preventing it from reacting with corrosive substances. Regular steel, on the other hand, typically has a lower corrosion resistance due to its composition and lack of alloying elements. It is more prone to rusting and other forms of corrosion when exposed to moisture, atmospheric gases, or chemicals. Furthermore, special steels may undergo additional treatments such as heat treatment, passivation, or coating to further enhance their corrosion resistance. These treatments help create a barrier against corrosive agents, extending the lifespan and durability of the steel in corrosive environments. In summary, special steel offers superior corrosion resistance compared to regular steel due to its composition, alloying elements, and additional treatments. This makes it a preferred choice in applications where corrosion resistance is critical, such as in marine environments, chemical processing plants, or infrastructure exposed to harsh weather conditions.
- Q:What are the challenges in heat treatment of special steel alloys?
- The heat treatment of special steel alloys presents various difficulties due to their unique composition and properties. One of the primary obstacles is attaining the desired microstructure and mechanical properties while maintaining dimensional stability. Special steel alloys often contain intricate alloying elements and necessitate specific heat treatment processes to achieve the desired properties. Another hurdle involves controlling the rates of heating and cooling throughout the heat treatment procedure. Special steel alloys are often sensitive to rapid or uneven temperature changes, which can lead to distortion, cracking, or the formation of undesirable phases. Hence, ensuring precise control of the heating and cooling rates is crucial to avoid these issues and ensure uniformity in the final product. Furthermore, the presence of alloying elements in special steel alloys can increase their hardenability, making it challenging to achieve the desired hardness consistently across the entire component. Adequate attention must be given to selecting appropriate heat treatment parameters, including temperatures, soaking times, and quenching media, in order to achieve the desired hardness and prevent excessive hardness gradients. Additionally, special steel alloys are prone to oxidation and decarburization during heat treatment due to their high alloy content and exposure to elevated temperatures. These reactions can result in surface defects and a decrease in carbon content, thereby impacting the final properties of the alloy. Consequently, careful control of protective atmospheres or heat treatment environments is necessary to prevent such issues. Moreover, the size and shape of components made from special steel alloys can pose challenges during heat treatment. Large or intricately shaped components require careful consideration of heating and cooling methods to ensure uniformity in microstructure and properties throughout the entire component. This may involve the use of specialized furnaces, fixtures, or heat treatment cycles to overcome these challenges. In conclusion, the challenges involved in heat treating special steel alloys encompass achieving the desired microstructure and mechanical properties, controlling heating and cooling rates, managing hardenability, preventing oxidation and decarburization, and addressing the size and shape of components. Overcoming these challenges demands a comprehensive understanding of the alloy's composition, properties, and the application of appropriate heat treatment techniques.
- Q:What are the advantages of using special steel in construction?
- There are several advantages of using special steel in construction. Firstly, special steel offers superior strength and durability, making it ideal for high-rise buildings and structures that require enhanced structural integrity. Additionally, special steel has excellent corrosion resistance properties, which significantly increases the lifespan of a structure, especially in harsh environments. Furthermore, special steel can be customized and fabricated into various shapes, allowing for flexible and innovative architectural designs. Lastly, special steel is a sustainable and eco-friendly material, as it is recyclable and reduces the need for new resources, thereby contributing to a more sustainable construction industry.
- Q:How is corrosion-resistant steel different from regular steel?
- Corrosion-resistant steel, also known as stainless steel, differs from regular steel primarily due to the presence of chromium. Regular steel is prone to rust and corrosion when exposed to moisture and oxygen, while corrosion-resistant steel contains a minimum of 10.5% chromium, which forms a protective layer on its surface, preventing rust and corrosion. This additional element makes corrosion-resistant steel highly durable, long-lasting, and suitable for various applications where exposure to moisture or corrosive environments is a concern.
- Q:How does special steel perform in high-temperature creep conditions?
- Special steel performs well in high-temperature creep conditions due to its unique composition and properties. It exhibits excellent resistance to deformation and maintains its strength and integrity even at elevated temperatures. The high alloy content and specialized heat treatment processes contribute to its ability to withstand prolonged exposure to extreme temperatures without significant deformation. This makes special steel an ideal choice for applications where high-temperature creep resistance is crucial, such as in power generation, aerospace, and petrochemical industries.
- Q:What are the different quality control measures for special steel production?
- There are several quality control measures implemented during special steel production, including rigorous inspections at various stages of the manufacturing process, such as raw material testing, chemical composition analysis, and heat treatment verification. Additionally, non-destructive testing techniques, such as ultrasonic testing and magnetic particle inspection, are employed to detect any defects or inconsistencies in the steel's structure. Furthermore, dimensional and surface quality checks are performed to ensure that the final product meets the required specifications and standards.
- Q:What are the advantages of using special steel over other materials?
- There are several advantages of using special steel over other materials. Firstly, special steel offers superior strength and durability, making it ideal for applications that require high load-bearing capacity or resistance to wear and tear. Secondly, special steel has excellent corrosion resistance properties, which is particularly important for industries such as construction, automotive, and marine. Additionally, special steel can be easily customized and shaped to meet specific design requirements, providing flexibility in manufacturing processes. Lastly, special steel often exhibits high heat resistance and excellent mechanical properties, making it suitable for demanding environments and critical applications.
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Reinforcing Twisted Steel Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 140 m.t.
- Supply Capability:
- 500000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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