Deformed Steel Bar HRB500 Construction Rebar

Deformed Steel Bar HRB500 Construction Rebar System 1

Deformed Steel Bar HRB500 Construction Rebar

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Product information:

Commodity:	High quality hot rolled ribbed bar, Steel rebar, Deformed bars, Deform rebar
Standard & Grade:	GB1499-98 : HRB335,HRB400,HRB500
	BS4449-1997 : GR460B,GRB500B
	CAN/CSA-G30.18-M92 : 400W
	AS/NZS4671-2001 : GR300E, GR500E
	JIS G3112-2010 : SD345,SD390,SD490
	ASTM A615 : Gr.40, Gr.60
	DIN488-1984 : BST500
	KS D 3504 : SD400
Diameter:	6mm - 50mm
Length:	6m,9m,12m
Packing:	Bundle packing
Origin:	China
Application:	Construction,Road,Machinery processing,Welding fields.
Delivery time:	10-25 days
Shipment:	By bulk vessel or Container
Documents:	Mill Test Certificate,Commercial Invoice,Packing List,Certificate of Origin

Product show

Workshop show

Deformed Steel Bar HRB500 Construction Rebar

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: What are the different methods for improving the toughness of tool steels used in special steel?: There are several methods available for improving the toughness of tool steels used in special steel applications. These methods are aimed at enhancing the resistance of the steel to fracture and increasing its ability to absorb energy without undergoing brittle failure. Some of the different methods for improving the toughness of tool steels include: 1. Alloying: The addition of specific alloying elements such as chromium, molybdenum, vanadium, and tungsten can significantly enhance the toughness of tool steels. These alloying elements form carbides within the steel matrix, which helps to improve its toughness. 2. Heat treatment: Proper heat treatment can greatly improve the toughness of tool steels. Processes such as quenching and tempering are commonly employed to achieve the desired level of toughness. Quenching involves rapidly cooling the steel from high temperatures, resulting in a hardened structure. Tempering follows quenching and involves reheating the steel to a specific temperature and then cooling it slowly. This process helps to relieve internal stresses and increases toughness. 3. Controlled cooling rates: By controlling the cooling rate during heat treatment, it is possible to optimize the toughness of tool steels. Slow cooling rates allow for the formation of a more uniform microstructure, leading to improved toughness. 4. Grain refinement: Refining the grain size of the steel can enhance its toughness. This can be achieved through processes such as hot working, controlled rolling, or adding grain refining elements like titanium or zirconium. 5. Surface treatments: Certain surface treatments, such as shot peening or nitriding, can improve the toughness of tool steels. Shot peening involves bombarding the surface of the steel with small metal or ceramic particles, inducing compressive residual stresses that enhance toughness. Nitriding involves diffusing nitrogen into the surface of the steel, forming a hard and wear-resistant layer that improves toughness. 6. Cryogenic treatment: Cryogenic treatment involves subjecting the tool steel to extremely low temperatures, typically below -100°C (-148°F), for an extended period. This process helps to refine the microstructure and reduce residual stresses, leading to improved toughness. 7. Powder metallurgy: Powder metallurgy techniques, such as hot isostatic pressing or sintering, can produce tool steels with improved toughness. By using a fine powder and applying high pressure and temperature, a more uniform and fine-grained microstructure can be achieved, resulting in increased toughness. Overall, the selection and combination of these methods depend on the specific requirements of the tool steel and the intended application. By carefully considering these techniques, manufacturers can enhance the toughness of tool steels, ensuring their suitability for demanding special steel applications.

Q: What are the different methods of preventing intergranular corrosion in special steel?: There are several methods available to prevent intergranular corrosion in special steel. 1. Heat Treatment: One effective method is to subject the steel to a heat treatment process called solution annealing. This involves heating the steel to a high temperature and then rapidly cooling it. This process helps to dissolve any precipitates or carbides that may have formed along the grain boundaries, thus reducing the risk of intergranular corrosion. 2. Alloying: Another approach is to add specific alloying elements to the steel composition. For example, the addition of elements like chromium and molybdenum can enhance the steel's resistance to intergranular corrosion. These alloying elements form a protective oxide layer on the surface, preventing corrosion from occurring along the grain boundaries. 3. Passivation: Passivation involves treating the steel surface with chemicals that create a protective layer. This layer acts as a barrier, preventing the corrosive environment from reaching the grain boundaries. Commonly used passivation techniques include acid pickling and electrochemical methods. 4. Sensitization Control: Special attention must be given to the sensitization process, which occurs when the steel is exposed to high temperatures for a prolonged period. This can lead to the precipitation of chromium carbides along the grain boundaries, making the steel susceptible to intergranular corrosion. By carefully controlling the heating and cooling rates during processing, sensitization can be minimized or prevented. 5. Corrosion Inhibitors: Another option is to use corrosion inhibitors, which are chemicals that can be applied to the steel surface to protect it from corrosion. These inhibitors form a protective film on the surface, preventing the corrosive agents from attacking the grain boundaries. It is important to note that the specific method used will depend on the type of special steel and the intended application. The selection of the most appropriate method should be based on a thorough understanding of the steel's composition, processing conditions, and the anticipated corrosive environment.

Q: What are the main corrosion resistance properties of special steel?: The main corrosion resistance properties of special steel include high resistance to rust, oxidation, and corrosion in various environments, such as acidic, alkaline, and marine conditions. Special steel is often alloyed with elements like chromium, nickel, and molybdenum, which form a protective layer on the surface and enhance its resistance to corrosion. Additionally, special steel may have a low carbon content, reducing the likelihood of corrosion caused by carbide precipitation. These properties make special steel a reliable choice for applications where resistance to corrosion is crucial, such as in the construction, automotive, and aerospace industries.

Q: How is creep-resistant steel used in the production of power plant components?: Creep-resistant steel is used in the production of power plant components primarily due to its ability to withstand high temperatures and constant stress. These components, such as boilers, turbine blades, and heat exchangers, operate under extreme conditions and are exposed to elevated temperatures for prolonged periods. Creep-resistant steel, with its enhanced resistance to deformation and rupture at high temperatures, ensures the structural integrity and longevity of these power plant components, contributing to their reliable and efficient operation.

Q: Can special steel be used in the cement manufacturing industry?: Yes, special steel can be used in the cement manufacturing industry. Special steel, such as heat-resistant and wear-resistant steel, can be utilized in various components and machinery used in cement manufacturing processes. These steels are designed to withstand high temperatures, abrasion, and corrosion, making them suitable for applications in kilns, crushers, mills, and other equipment involved in cement production.

Q: What are the different tooling grades of special steel?: Special steel is a category of steel that has been designed and manufactured to possess specific characteristics or properties, making it well-suited for various industrial applications. Within special steel, there are different tooling grades available, each with its own unique composition and properties. These grades are specifically engineered to meet the demands of different tooling applications, ensuring optimal performance and durability. Some common tooling grades of special steel include: 1. High-Speed Steel (HSS): HSS is a type of tool steel that exhibits excellent hardness, wear resistance, and heat resistance, making it ideal for high-speed cutting tools such as drills, milling cutters, and taps. It retains its hardness even at elevated temperatures, enabling it to maintain cutting performance without losing its edge. 2. Hot Work Tool Steel: Hot work tool steel is designed to withstand high temperatures and thermal cycling encountered in applications such as hot forging, die casting, and extrusion. It possesses good toughness, high heat resistance, and excellent wear resistance, allowing it to retain its strength and shape even under extreme thermal conditions. 3. Cold Work Tool Steel: Cold work tool steel is primarily used for cutting and forming applications at lower temperatures. It exhibits a high level of hardness, toughness, and wear resistance, making it suitable for applications such as blanking, shearing, and cold forming. Cold work tool steel maintains its hardness even under compressive forces, ensuring long-lasting performance. 4. Plastic Mold Steel: Plastic mold steel is specifically designed for the production of plastic injection molds and related tooling. It possesses excellent machinability, high polishability, and good wear resistance, allowing it to withstand the demanding conditions encountered during plastic molding processes. Plastic mold steel ensures precise and high-quality molding performance. 5. Powder Metallurgy (PM) Steel: PM steel is a tooling grade that is manufactured using a powder metallurgy process. This method allows for the production of complex shapes, uniform microstructure, and improved properties. PM steels are commonly used in high-performance cutting tools, wear-resistant parts, and high-strength applications. These are just a few examples of the different tooling grades available in special steel. Each grade is carefully engineered to meet the specific requirements of various tooling applications, ensuring optimal performance, durability, and efficiency in different industrial sectors.

Q: How does the hardness of special steel affect its machinability?: The hardness of special steel has a direct impact on its machinability. Generally, as the hardness of steel increases, its machinability decreases. Harder steel is more difficult to cut, shape, and form due to its increased resistance to deformation. Consequently, machining operations, such as drilling, milling, or turning, become more challenging and require specialized tools and techniques to achieve the desired results.

Q: Can special steel be used in the food processing industry?: Yes, special steel can be used in the food processing industry. Special steel alloys, such as stainless steel, are commonly used in food processing equipment and machinery due to their corrosion resistance, durability, and hygiene properties. These steel alloys provide a reliable and safe material for handling and processing food, making them an ideal choice for the industry.

Q: What are the main challenges in machining special steel?: The main challenges in machining special steel include its high hardness and low machinability, which make it difficult to cut and shape. Special steels also have a tendency to work harden, causing tools to wear out quickly. Additionally, special steels often contain alloying elements that can lead to heat build-up during machining, requiring careful selection of cutting parameters and cooling methods.

Q: Can special steel be used in the packaging industry?: Yes, special steel can be used in the packaging industry. Special steel, such as stainless steel, offers excellent durability, corrosion resistance, and strength, making it suitable for various packaging applications. It can be used to manufacture packaging containers, machinery, and equipment, providing a reliable and long-lasting solution for packaging needs.

Send your message to us

*Email

*TEL

*Quantity

*Unit