Alloy Steel Rebar Made in China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 110 m.t.
- Supply Capability:
- 50000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Specification
Type:
Carbon Steel
Shape:
Steel Round Bar
Alloy Steel Rebar Made in China
Description of Alloy Steel Rebar Made in China
1, Diameter: 5.5mm-10mm Alloy Steel Rebar
10m- 40mm Alloy Steel 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 Alloy Steel Rebar Made in China
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 Alloy Steel Rebar Made in China
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: 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: What are the challenges in machining special steel alloys?
- Machining special steel alloys presents several challenges. These alloys are typically harder and more brittle than regular steel, making them more difficult to cut and shape. They also tend to generate higher heat during the machining process, increasing the risk of tool wear and thermal damage. Special steel alloys may also have complex microstructures and chemical compositions, which can result in uneven material removal and unpredictable machining behavior. Additionally, these alloys often have lower machinability ratings, requiring specialized cutting tools and techniques to achieve desired results. Overall, the challenges in machining special steel alloys lie in their hardness, heat generation, complex microstructures, and lower machinability, necessitating expertise and careful consideration during the machining process.
- Q: How does special steel resist oxidation at high temperatures?
- Due to the presence of specific alloying elements and a carefully controlled manufacturing process, special steel is able to resist oxidation at high temperatures. When exposed to oxygen in the air, alloying elements like chromium, nickel, and aluminum form a protective oxide layer on the steel's surface. This layer acts as a barrier, preventing further oxidation. Of these alloying elements, chromium is particularly effective in forming a stable and dense chromium oxide layer. This layer serves as a self-healing mechanism, meaning that if it becomes damaged or scratched, it will quickly regenerate and continue to protect the steel from oxidation. The manufacturing process of special steel involves precise control of composition and heat treatment. This ensures that the steel has a fine and uniform microstructure, minimizing the presence of impurities or defects that could speed up oxidation. Moreover, the steel often undergoes various heat treatments, such as annealing or quenching, which further enhance its resistance to oxidation. In conclusion, the combination of alloying elements, controlled composition, and specific manufacturing processes allow special steel to withstand oxidation at high temperatures. This makes it an ideal choice for applications in industries like aerospace, power generation, and petrochemical.
- Q: How is alloy steel used in the production of gears and shafts?
- Alloy steel is commonly used in the production of gears and shafts due to its excellent combination of strength, durability, and resistance to wear and corrosion. The alloying elements such as manganese, chromium, nickel, and molybdenum enhance the properties of the steel, making it suitable for high-stress applications. The use of alloy steel in gears and shafts ensures their ability to withstand heavy loads, transmit power efficiently, and maintain dimensional stability under extreme operating conditions, thus increasing the overall lifespan and performance of the components.
- Q: How does special steel perform in pharmaceutical applications?
- Special steel is highly valued in pharmaceutical applications due to its unique properties and characteristics. It offers excellent corrosion resistance, which is crucial in pharmaceutical environments where chemical substances and aggressive cleaning agents are commonly used. This corrosion resistance ensures that the steel remains durable and maintains its integrity over time. Additionally, special steel is known for its high strength and durability, making it suitable for applications that require heavy loads or frequent use. This strength allows the steel to withstand the rigorous demands of pharmaceutical processes, such as mixing, grinding, and sterilization, without compromising its structural integrity. Another key advantage of special steel in pharmaceutical applications is its hygienic properties. Special steel is highly resistant to bacterial growth and is easy to clean, making it ideal for environments where cleanliness and sterility are of utmost importance. The smooth surface of special steel prevents the accumulation of dirt, bacteria, and other contaminants, reducing the risk of contamination and ensuring the safety and quality of pharmaceutical products. Moreover, special steel offers excellent temperature resistance, allowing it to withstand extreme temperatures and thermal cycling typically encountered in pharmaceutical processes. This thermal stability ensures that the steel retains its mechanical properties and dimensional stability, even under fluctuating temperature conditions. Overall, special steel's corrosion resistance, high strength, hygienic properties, and temperature resistance make it a reliable and versatile material for pharmaceutical applications. Its performance in these demanding environments contributes to the production of safe and high-quality pharmaceutical products.
- Q: How is special steel used in the power generation industry?
- Special steel is used in the power generation industry for various applications such as turbine blades, generator shafts, and boiler tubes. The high strength, corrosion resistance, and heat resistance properties of special steel ensure efficient and reliable power generation. Additionally, special steel is used in the construction of power plant infrastructure, including pipelines and structures, to enhance durability and safety.
- Q: What are the different surface treatments applied to special steel?
- There are several different surface treatments that can be applied to special steel to enhance its properties and improve its performance. Some of the commonly used surface treatments include: 1. Heat treatment: This is a process that involves heating the steel to a specific temperature and then cooling it at a controlled rate. Heat treatment can be used to improve the hardness, strength, and toughness of the steel, as well as to enhance its resistance to wear and corrosion. 2. Coating: Coating the surface of special steel with a protective layer is another common surface treatment. This can be done using various methods such as electroplating, hot-dip galvanizing, or powder coating. Coatings can provide additional resistance to corrosion, improve the appearance of the steel, and increase its lifespan. 3. Nitriding: Nitriding is a process that involves diffusing nitrogen into the surface of the steel, typically at high temperatures. This forms a hard surface layer that improves the wear resistance and fatigue strength of the steel, while maintaining the core toughness. 4. Shot peening: Shot peening is a mechanical surface treatment that involves bombarding the steel surface with small spherical particles, typically made of steel or ceramic. This process induces compressive stresses in the surface layer, which improves the fatigue strength and resistance to stress corrosion cracking. 5. Passivation: Passivation is a chemical treatment that is used to remove impurities and contaminants from the surface of the steel, typically by immersing it in an acid solution. This process helps to restore the natural corrosion resistance of stainless steel by forming a protective oxide layer on the surface. 6. Electro-polishing: Electro-polishing is an electrochemical process that removes a thin layer of material from the surface of the steel. This treatment can improve the surface finish, remove micro-roughness, and enhance the corrosion resistance of the steel. These are just a few examples of the various surface treatments that can be applied to special steel. The choice of treatment depends on the specific requirements of the application and the desired properties of the steel.
- Q: How does special steel perform in high-temperature strength?
- Special steel, also referred to as high-temperature steel, is engineered for superior performance in applications requiring high-temperature strength. Unlike standard steels, which can weaken and compromise structural integrity at elevated temperatures, special steel maintains its mechanical properties even in extreme heat conditions. The exceptional high-temperature strength of special steel stems from its distinctive composition. It is typically alloyed with elements like chromium, nickel, and molybdenum, significantly enhancing its resistance to thermal expansion, oxidation, and creep. These alloying elements form stable oxides on the steel's surface, creating a protective layer that prevents further oxidation and corrosion, thus preserving the material's strength and integrity. Furthermore, the microstructure of special steel is vital to its high-temperature performance. Through advanced manufacturing techniques, special steel is crafted with a fine-grained structure, enhancing its resistance to deformation and boosting its creep strength. The fine grains also contribute to its ability to retain mechanical properties at elevated temperatures for extended periods. Moreover, special steel undergoes rigorous heat treatment processes, such as quenching and tempering, which further enhance its high-temperature strength. These processes refine the microstructure and optimize the steel's mechanical properties, including hardness, toughness, and resistance to thermal fatigue. In conclusion, special steel is purposefully designed and engineered to excel in applications requiring high-temperature strength. Its unique composition, microstructure, and heat treatment processes contribute to its exceptional resistance to thermal expansion, oxidation, and creep, ensuring that it maintains its mechanical properties and structural integrity even under extreme heat conditions.
- Q: What are the different corrosion-resistant coatings for special steel?
- Various corrosion-resistant coatings are available for special steel, each possessing unique properties and advantages. Some commonly used coatings include: 1. Zinc Coating: Galvanizing and other zinc coatings are widely employed to safeguard special steel against corrosion. The zinc layer acts as a sacrificial barrier, preventing corrosive elements from coming into contact with the steel. 2. Epoxy Coating: Due to their exceptional adhesion, chemical resistance, and durability, epoxy coatings are a popular choice for corrosion protection. They create a robust barrier that shields special steel from moisture, chemicals, and other corrosive agents. 3. Polyurethane Coating: In harsh environments where special steel is exposed to extreme conditions, such as offshore or marine applications, polyurethane coatings offer exceptional resistance against abrasion, chemicals, and weathering. 4. Ceramic Coating: Ceramic coatings provide outstanding corrosion protection and high-temperature resistance. They are frequently used in industries like aerospace and automotive, where special steel must withstand extreme temperatures and corrosive environments. 5. Metal Coating: Nickel or chromium coatings are frequently applied to special steel to enhance its corrosion resistance. These coatings establish a protective layer that acts as a physical barrier, preventing corrosion. 6. Powder Coating: Powder coatings are electrostatically applied and then cured under heat, resulting in a hard and durable protective layer. They offer excellent corrosion resistance and can be customized in terms of color and texture. Choosing the appropriate corrosion-resistant coating for special steel is crucial and should be based on specific requirements and the environment it will be exposed to. Factors such as temperature, exposure to chemicals or moisture, and desired coating lifespan should all be considered when selecting the suitable coating.
- Q: What are the different methods for improving the corrosion resistance of special steel?
- There are multiple techniques available to enhance the corrosion resistance of special steel. 1. Alloying: Adding alloying elements, like chromium, nickel, and molybdenum, to the steel composition is a widely used method. These elements create a protective layer on the steel surface, preventing corrosion. For instance, stainless steel contains a substantial amount of chromium, which forms a passive film that shields the steel from corrosive surroundings. 2. Surface treatments: Diverse surface treatments can be applied to special steel to augment its corrosion resistance. These treatments include electroplating, hot-dip galvanizing, and chemical passivation. Electroplating involves coating the steel with a layer of zinc or nickel, serving as a sacrificial anode that safeguards the steel from corrosion. Hot-dip galvanizing entails immersing the steel in molten zinc to form a durable and corrosion-resistant layer. Chemical passivation involves treating the steel with a solution that eliminates surface impurities and forms a protective oxide layer. 3. Protective coatings: The application of protective coatings can considerably enhance the corrosion resistance of special steel. Coatings like paint, epoxy, or polyurethane act as barriers, preventing moisture and corrosive substances from contacting the steel surface. These coatings can be applied through spray, dip, or powder coating methods. 4. Heat treatment: Modifying the microstructure of special steel through heat treatment improves its corrosion resistance. Processes like annealing, quenching, and tempering can alter the steel's properties, making it more resistant to corrosion. Heat treatment can also alleviate internal stresses that contribute to corrosion. 5. Environmental control: Controlling the environment in which the special steel is utilized can also aid in improving its corrosion resistance. This includes maintaining appropriate humidity levels, controlling pH, avoiding exposure to corrosive chemicals, and implementing effective ventilation systems. By minimizing the exposure of special steel to corrosive elements, its corrosion resistance can be enhanced. In conclusion, a combination of these methods can be employed to enhance the corrosion resistance of special steel, ensuring its durability and performance in corrosive environments.
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Alloy Steel Rebar Made in China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 110 m.t.
- Supply Capability:
- 50000 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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