• Deformed Steel Bars Specification System 1
  • Deformed Steel Bars Specification System 2
  • Deformed Steel Bars Specification System 3
  • Deformed Steel Bars Specification System 4
  • Deformed Steel Bars Specification System 5
  • Deformed Steel Bars Specification System 6
Deformed Steel Bars Specification

Deformed Steel Bars Specification

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
170 m.t.
Supply Capability:
50000 m.t./month

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Specification

Type:
Carbon Steel
Shape:
Steel Round Bar

Deformed Steel Bars Specification  


Description of Deformed Steel Bars Specification

1, Diameter: 5.5mm-10mm Deformed Steel Bars Specification 

                       10m- 40mm Deformed Steel Bars Specification

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 Deformed Steel Bars Specification

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 Deformed Steel Bars Specification

Astm 615 Bs4449 B500B Deformed 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.

Astm 615 Bs4449 B500B Deformed Steel RebarsAstm 615 Bs4449 B500B Deformed Steel Rebars 


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 main applications of special steel in the energy storage industry?
Special steel is widely used in the energy storage industry for various applications. One of the main applications is in the manufacturing of high-quality battery cases, where the steel's exceptional strength and corrosion resistance ensure the safety and longevity of the batteries. Additionally, special steel is used in the construction of energy storage systems, such as pumped hydro storage and compressed air energy storage, due to its durability and resistance to extreme conditions. Overall, special steel plays a crucial role in ensuring the efficiency, reliability, and safety of energy storage technologies in the industry.
Q: What are the disadvantages of using special steel?
One of the main disadvantages of using special steel is its high cost. Special steel is typically more expensive to produce and purchase compared to regular steel. Additionally, the production process for special steel often requires specific techniques and equipment, which can further increase costs. Another disadvantage is the limited availability of special steel. It may not be readily accessible in all regions, leading to longer lead times and potential supply chain issues. Moreover, special steel may have lower formability and machinability compared to regular steel, making it more challenging to work with and shape as needed.
Q: What are the common challenges in welding titanium alloys?
Welding titanium alloys poses several common challenges, mainly due to the unique properties of titanium. First, titanium has a high melting point, around 1668°C (3034°F), which requires specialized equipment and techniques to achieve optimal welding conditions. This high melting point also increases the risk of overheating and subsequent distortion or warping of the welded parts. Another challenge is the high reactivity of titanium with oxygen, nitrogen, and hydrogen. During the welding process, these gases can easily contaminate the weld pool, leading to the formation of brittle and porous welds. Therefore, stringent measures such as using inert shielding gases like argon or helium, maintaining a high level of cleanliness, and employing proper welding techniques like gas tungsten arc welding (GTAW) are necessary to minimize contamination and achieve sound welds. Titanium also has a strong affinity for carbon, which can result in the formation of brittle intermetallic compounds during welding. To prevent this, it is crucial to use low-carbon filler metals and ensure proper heat input to avoid carbon diffusion into the weld zone. Furthermore, titanium alloys have a low thermal conductivity, which means that heat generated during welding tends to concentrate in a small area, leading to localized overheating and potential damage. Therefore, controlling heat input and employing appropriate welding techniques to distribute heat evenly are crucial to avoid overheating and maintain the integrity of the welded joint. Lastly, titanium alloys exhibit a high thermal expansion coefficient, causing significant thermal expansion and contraction during the welding process. This can result in distortion and residual stresses in the welded parts. To mitigate these issues, preheating and post-weld heat treatment may be necessary to minimize distortion and relieve residual stresses. In summary, the common challenges in welding titanium alloys include high melting point, reactivity with gases, potential contamination, formation of intermetallic compounds, low thermal conductivity, and significant thermal expansion. By understanding these challenges and implementing appropriate welding techniques, it is possible to overcome these difficulties and achieve high-quality welds in titanium alloys.
Q: What are the environmental considerations of using special steel?
There are several environmental considerations associated with the use of special steel. Firstly, the production of special steel involves the extraction and processing of raw materials, which can have significant environmental impacts. The mining of iron ore and other minerals required for steel production often results in habitat destruction, soil erosion, and water pollution. Additionally, the energy-intensive processes used to convert raw materials into steel emit large amounts of greenhouse gases, contributing to climate change. Furthermore, the disposal of special steel products at the end of their life cycle can also pose environmental challenges. Steel is a non-renewable resource, and its disposal in landfills can contribute to waste accumulation and resource depletion. However, steel is highly recyclable, and recycling steel products can significantly reduce the environmental impact associated with their disposal. In terms of transportation, special steel is often heavy and bulky, which leads to higher fuel consumption during transportation. This can contribute to air pollution and carbon emissions, particularly if long-distance shipping is involved. Moreover, the manufacturing processes used to produce special steel can generate various types of waste, such as slag and dust, which need to be properly managed to prevent negative environmental impacts. The treatment and disposal of these waste materials require careful consideration to ensure they do not contaminate soil, water, or air. To mitigate these environmental considerations, companies in the steel industry have been adopting more sustainable practices. This includes investing in cleaner technologies, such as electric arc furnaces that use recycled steel as feedstock, to reduce energy consumption and emissions. Additionally, implementing efficient waste management systems and promoting steel recycling can help minimize waste generation and resource depletion. Overall, while the use of special steel has undeniable benefits in various industries, it is crucial to consider and address the associated environmental impacts. Adopting sustainable practices throughout the entire lifecycle of special steel, from raw material extraction to end-of-life disposal, is vital in minimizing its environmental footprint and promoting a more sustainable future.
Q: How does special steel perform in food processing applications?
The unique properties and benefits of special steel make it a widely used material in food processing applications. Its exceptional corrosion resistance is one of its key advantages in this industry. When exposed to corrosive substances like acids, alkalis, and salt solutions, special steel, such as stainless steel, forms a protective oxide layer on its surface, preventing corrosion and maintaining the hygiene and safety of the processed food. In addition to its corrosion resistance, special steel is highly durable and resistant to wear and tear. This is crucial in food processing equipment that undergoes rigorous and repetitive operations like cutting, grinding, and mixing. Special steel's high strength and toughness allow it to withstand these demanding applications without compromising its performance or integrity. As a result, the equipment has a longer lifespan, minimizing downtime and maintenance costs. Special steel also offers excellent heat resistance, which is essential for high-temperature food processing applications. It can withstand extreme temperatures without losing its mechanical properties, ensuring the structural integrity of the equipment and preventing any contamination risks. Furthermore, special steel is easy to clean and maintain, a critical factor in the food processing industry. Its smooth surface and non-porous nature prevent the accumulation of food particles, bacteria, and other contaminants, maintaining a high level of hygiene. Special steel is also resistant to chemical cleaning agents and can be easily sterilized, making it an ideal material for food processing equipment. To summarize, special steel's corrosion resistance, durability, heat resistance, and ease of maintenance make it an exceptional choice for food processing applications. Its properties contribute to the safety, efficiency, and longevity of the equipment, ensuring high-quality and hygienic food production.
Q: What are the main alloying elements used in special steel?
The main alloying elements used in special steel can vary depending on the specific type of special steel, but common alloying elements include chromium, nickel, molybdenum, vanadium, and tungsten. These elements are added to enhance the steel's properties such as corrosion resistance, strength, hardness, and heat resistance.
Q: What are the main factors affecting the heat resistance of special steel?
The main factors affecting the heat resistance of special steel include its alloy composition, microstructure, and heat treatment. Alloy composition plays a crucial role in determining the heat resistance of special steel. The addition of specific elements such as chromium, nickel, molybdenum, and tungsten can enhance the steel's ability to withstand high temperatures. These alloying elements form stable oxide layers on the surface of the steel, which act as a barrier against oxidation and corrosion at elevated temperatures. The microstructure of special steel also influences its heat resistance. The steel's grain size, distribution of phases, and the presence of precipitates can affect its thermal stability. Fine-grained structures and a homogeneous distribution of phases help improve the steel's resistance to creep, which is the deformation that occurs under prolonged exposure to high temperatures. Additionally, the presence of precipitates, such as carbides or intermetallic compounds, can provide strengthening mechanisms that enhance the steel's resistance to thermal softening. Heat treatment processes, such as quenching and tempering, can significantly impact the heat resistance of special steel. Proper heat treatment can optimize the microstructure and enhance the steel's mechanical properties, including its resistance to thermal degradation. For instance, a well-controlled quenching process can promote the formation of a martensitic structure, which increases the steel's hardness and strength at high temperatures. Other factors that can affect the heat resistance of special steel include the presence of impurities, surface conditions, and environmental factors. Impurities, such as sulfur and phosphorus, can reduce the steel's resistance to high temperatures by promoting the formation of brittle phases or facilitating oxidation. Surface conditions, such as roughness or the presence of cracks, can lead to localized heating and accelerated degradation. Environmental factors, such as the presence of corrosive gases or high humidity, can also influence the steel's heat resistance by promoting oxidation or corrosion processes. In summary, the heat resistance of special steel is influenced by its alloy composition, microstructure, heat treatment, impurities, surface conditions, and environmental factors. Understanding and optimizing these factors are crucial for developing special steel with superior heat resistance for various industrial applications.
Q: Can special steel be used in the aerospace defense industry?
Yes, special steel can be used in the aerospace defense industry. Special steel alloys such as high-strength steels, stainless steels, and nickel-based alloys are commonly utilized in the production of various components and structures for aerospace defense applications. These materials offer excellent mechanical properties, corrosion resistance, and durability, making them suitable for critical applications in the aerospace defense industry.
Q: What is the significance of phosphorus in special steel?
Phosphorus plays a vital role in the production of special steel due to its numerous advantageous properties. To begin with, it acts as a deoxidizer during the steel manufacturing process, thereby eliminating impurities like oxygen. This results in an overall improvement in the quality and purity of the steel, making it more resistant to corrosion and enhancing its mechanical properties. Additionally, phosphorus has the ability to enhance the strength and hardness of the steel, making it ideal for applications that demand durability and resistance to wear. It also aids in improving the steel's machinability, facilitating easier shaping and processing. Moreover, phosphorus contributes to the steel's capacity to retain its strength even at high temperatures, making it suitable for use in environments like power plants or aerospace industries. However, it is crucial to control the concentration of phosphorus within certain limits as excessive levels can have detrimental effects. A high phosphorus content can lead to brittleness, reduced toughness, and decreased weldability of the steel. Therefore, it is necessary to carefully consider and balance the beneficial effects of phosphorus with its potential drawbacks. In conclusion, the significance of phosphorus in special steel lies in its ability to enhance the quality, purity, strength, hardness, machinability, and high-temperature performance of the steel. By controlling the phosphorus content within appropriate limits, manufacturers can produce special steel with improved properties that meet the specific requirements of various industrial applications.
Q: How does bearing steel contribute to the manufacturing of bearings?
Bearing steel, with its high strength, hardness, and wear resistance properties, plays a crucial role in the manufacturing of bearings. It provides the necessary material strength to withstand heavy loads, reduce friction, and ensure smooth rotation. The specific composition of bearing steel, including elements like chromium, molybdenum, and carbon, enhances its durability, corrosion resistance, and ability to retain shape under extreme conditions. By using bearing steel, manufacturers can produce high-quality bearings that offer reliable performance, longer lifespan, and improved efficiency in various applications ranging from automotive and aerospace to industrial machinery and appliances.

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