Special Steel Reinforcing Steel Bars HRB355 Rebars

Special Steel Reinforcing Steel Bars HRB355 Rebars System 1

Special Steel Reinforcing Steel Bars HRB355 Rebars

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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Product Information

Chemical composition

Grade	Technical data of the original chemical composition (%)
	C	Mn	Si	S	P	B
HRB335	≤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

3.Theorectical weight

Diameter (MM)	Cross Sectional Area (MM2)	Theorectical Weight (KG/M)	Weight of 12M Bar (KG)	A Ton Contains 12M Bars (PCS)
6	28.27	0.222	2.664	375.38
8	50.27	0.395	4.74	210.97
10	78.54	0.617	7.404	135.06
12	113.1	0.888	10.656	93.84
14	153.9	1.21	14.52	68.87
16	201.1	1.58	18.96	52.74
18	254.5	2	24	41.67
20	314.2	2.47	29.64	33.74
22	380.1	2.98	35.76	27.96
25	490.9	3.85	46.2	21.65
28	615.8	4.83	57.96	17.25
32	804.2	6.31	75.72	13.21
36	1018	7.99	98.88	10.43
40	1257	9.87	118.44	8.44

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Special Steel Reinforcing Steel Bars HRB355 Rebars

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Special Steel Reinforcing Steel Bars HRB355 Rebars

Shipping

1. FedEx/DHL/UPS/TNT for samples, Door-to-Door;

2. By Air or by Sea for batch goods, for FCL; Airport/ Port receiving;

3. Customers specifying freight forwarders or negotiable shipping methods!

Delivery Time: 3-7 days for samples; 5-25 days for batch goods.

Payment Terms

1.Payment: T/T, L/C, Western Union, MoneyGram,PayPal; 30% deposits; 70% balance before delivery.

2.MOQ: 1pcs

3.Warranty : 3 years

4.Package Informations: 1) EXPORT, In 20 feet (GW 25 ton) or 40 feet Container (GW 25 ton)

2)as customer's requirement

Why choose us?

(1) The leading exporter in China special steel industry.

(2) Large stocks for various sizes, fast delivery date.

(3) Good business relationship with China famous factories.

(4) More than 7 years steel exporting experience.

(5) Good after-sales service guarantee.

Q:How is structural steel used in building construction?: Structural steel is a crucial material in building construction as it provides strength, durability, and flexibility to the overall structure. It is used to create the framework or skeleton of a building, including beams, columns, and trusses. These steel components support the weight of the building and distribute it evenly, ensuring stability and safety. Additionally, structural steel can be easily fabricated and assembled on-site, making it a cost-effective and efficient solution for various types of construction projects.

Q:What are the main characteristics of pressure vessel steel forgings?: Pressure vessel steel forgings possess several key features that render them suitable for utilization in pressure vessels. Firstly, these forgings are renowned for their exceptional strength and toughness. This attribute is of utmost importance as pressure vessels typically encounter significant internal pressure, necessitating steel capable of withstanding such force without deformation or rupture. Meticulous design and manufacturing ensure that the forgings possess the requisite strength and toughness to endure these pressures. Secondly, pressure vessel steel forgings exhibit remarkable resistance to corrosion. Given that pressure vessels frequently house corrosive fluids or gases, it becomes imperative for the steel employed in their construction to possess corrosion resistance. This feature guarantees the durability and dependability of the pressure vessel. The steel forgings are often crafted with specific alloying elements that enhance their resistance to corrosion. A further notable characteristic of pressure vessel steel forgings lies in their ability to retain their mechanical properties at elevated temperatures. Pressure vessels may be subjected to heightened temperatures due to the nature of the processes or fluids they contain. The forgings are designed to maintain their strength and toughness even in these high-temperature conditions, thereby ensuring the safety and reliability of the pressure vessel. Moreover, pressure vessel steel forgings typically undergo stringent quality control measures during their manufacturing process. This is essential to ensure that the forgings meet the prescribed standards and specifications for pressure vessel applications. The manufacturing process incorporates comprehensive inspections, testing, and documentation to guarantee compliance with the necessary quality and safety requirements. In summary, the primary characteristics of pressure vessel steel forgings encompass high strength and toughness, exceptional corrosion resistance, the ability to endure high temperatures, and stringent quality control measures. These attributes render pressure vessel steel forgings ideal for utilization in pressure vessels, providing the requisite strength, reliability, and safety demanded by such applications.

Q:What are the different chemical processing grades of special steel?: Various chemical processing grades of special steel exist, each possessing its own unique properties and applications. Some commonly encountered grades include: 1. Martensitic stainless steel: Esteemed for its exceptional strength and hardness, this grade finds utility in contexts that prioritize corrosion and wear resistance, such as cutlery, surgical instruments, and industrial equipment. 2. Austenitic stainless steel: Distinguished by its remarkable corrosion resistance and formability, this grade is frequently employed in sectors where hygiene and cleanliness are paramount, like the food and beverage industry, pharmaceuticals, and chemical processing. 3. Duplex stainless steel: This grade amalgamates the desirable qualities of both austenitic and ferritic stainless steels, offering elevated strength and outstanding corrosion resistance. It is aptly suited for applications in harsh environments, such as offshore oil and gas platforms, chemical plants, and desalination plants. 4. Precipitation-hardening stainless steel: By undergoing heat treatment, this grade can attain heightened strength and hardness. It is commonly employed in the aerospace, defense, and nuclear industries, where strength, toughness, and corrosion resistance are of utmost importance. 5. Tool steel: Specifically formulated for the production of tools, dies, and molds, tool steel exhibits exceptional hardness, wear resistance, and toughness. It is widely utilized in industries such as automotive, aerospace, and manufacturing. These examples merely scratch the surface of the diverse array of chemical processing grades of special steel. Each grade possesses its own distinct composition and processing techniques to achieve the desired properties for its designated application.

Q:What are the main applications of special steel in the power distribution industry?: Special steel is widely used in the power distribution industry for various applications. One of the main applications is in the construction of transmission towers and electrical pylons. Special steel is preferred for these structures due to its high strength, durability, and resistance to corrosion. It ensures the safe and reliable transmission of electricity over long distances. Special steel is also used in the manufacturing of electrical transformers and generators. The steel's magnetic properties make it suitable for creating efficient and reliable power generation and distribution equipment. Additionally, special steel is used in the production of electrical connectors and conductors, which are essential for ensuring the efficient flow of electricity through power distribution systems. Overall, the main applications of special steel in the power distribution industry include transmission towers, electrical pylons, transformers, generators, and electrical connectors. These applications play a crucial role in maintaining a robust and reliable power grid, ensuring uninterrupted electricity supply to consumers.

Q:How does special steel perform in high-temperature creep?: Special steel is specifically designed to perform well in high-temperature creep conditions. It possesses superior strength, resistance to deformation, and stability at elevated temperatures, making it highly suitable for applications where prolonged exposure to high temperatures and constant stress is expected. Its unique composition and heat treatment processes enable it to maintain its mechanical properties and resist deformation or failure for extended periods under these extreme conditions.

Q:How is the toughness of special steel measured?: The toughness of special steel is typically measured using impact testing methods, such as the Charpy or Izod test. These tests involve measuring the amount of energy absorbed by the steel when it is struck by a pendulum or a falling weight. The higher the energy absorbed, the tougher the steel is considered to be.

Q:How does special steel perform in impact loading conditions?: Special steel is known for its exceptional performance in impact loading conditions. Due to its unique composition and manufacturing process, special steel exhibits remarkable strength, toughness, and resistance to deformation. When subjected to impact loading, special steel can effectively absorb and dissipate the energy generated, minimizing the risk of catastrophic failure or damage. The high strength of special steel allows it to withstand high impact forces without undergoing significant deformation or fracture. This characteristic makes it particularly suitable for applications where impact loading is prevalent, such as in the construction of heavy machinery, automotive components, and structural elements. Special steel's toughness is another crucial factor in its performance during impact loading conditions. It possesses excellent fracture toughness, enabling it to resist crack propagation and absorb impact energy without fracturing. This property ensures that special steel can withstand sudden and severe impacts without compromising its structural integrity. Additionally, special steel is often treated to enhance its resistance to impact loading conditions further. Processes such as heat treatment, forging, and quenching and tempering can increase the material's hardness and strength, making it even more capable of withstanding impact forces. In summary, special steel performs exceptionally well in impact loading conditions due to its high strength, toughness, and resistance to deformation. Its ability to absorb and dissipate energy efficiently, coupled with its resistance to fracture, makes it an ideal choice for applications where impact loading is a concern.

Q:How does special steel contribute to reducing product recalls?: Special steel contributes to reducing product recalls by providing improved strength, durability, and resistance to wear and tear. By using special steel in manufacturing processes, products are less likely to experience structural failures, malfunctions, or breakages that could lead to safety hazards or performance issues. This ultimately enhances the overall quality and reliability of products, minimizing the chances of recalls due to material-related defects.

Q:How is special steel heat treated?: Special steel is heat treated using a combination of heating and cooling processes to improve its strength, hardness, and other desired properties. This typically involves heating the steel to a specific temperature, known as the austenitizing temperature, followed by rapid cooling, known as quenching, to transform the steel's microstructure. This is then followed by tempering, where the steel is reheated to a lower temperature to relieve internal stresses and further enhance its mechanical properties. The specific heat treatment process and parameters vary depending on the type of special steel and the desired final properties.

Q:What are the different methods for improving the toughness of special steel?: There are several methods that can be employed to enhance the toughness of special steel. One of the most effective techniques is through the process of alloying. By adding certain elements such as nickel, chromium, or molybdenum to the steel composition, the toughness can be significantly improved. These alloying elements help to increase the strength and resistance to cracking and fracture. Another method is through heat treatment processes. For instance, quenching and tempering can be employed to improve the toughness of the steel. Quenching involves rapidly cooling the steel from a high temperature to room temperature, which results in a hardened structure. Tempering then follows, where the steel is reheated to a specific temperature and then slowly cooled. This process helps to relieve internal stresses and increase the toughness of the steel. Furthermore, refining the microstructure of the steel can also enhance its toughness. Processes like grain refinement, which involves reducing the size of the grains in the steel, can lead to improved toughness. This is because smaller grains help to inhibit the propagation of cracks, making the steel more resistant to fracture. Lastly, special steel can undergo processes like shot peening or surface hardening to improve its toughness. Shot peening involves bombarding the surface of the steel with small metallic or ceramic particles, which induces compressive stresses and improves resistance to crack initiation. Surface hardening techniques such as carburizing or nitriding can create a hardened layer on the surface of the steel, increasing its toughness and wear resistance. In conclusion, the different methods for improving the toughness of special steel include alloying, heat treatment processes, microstructure refinement, and surface treatments. Each of these techniques can be tailored to the specific requirements of the steel to achieve the desired level of toughness.

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