Mild Steel HRB 400 Steel Rebar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 130 m.t.
- Supply Capability:
- 50000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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Item specifice
Type:
Carbon Steel
Shape:
Steel Round Bar
Mild Steel HRB 400 Steel Rebar
Description of Mild Steel HRB 400 Steel Rebar
1, Diameter: 5.5mm-10mm Mild Steel HRB 400 Steel Rebar
10m- 40mm Mild Steel HRB 400 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 Mild Steel HRB 400 Steel Rebar
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 Mild Steel HRB 400 Steel Rebar
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 bearing steel used in the manufacturing of bearings?
- Bearing steel is a specialized type of steel that is used in the manufacturing of bearings to ensure high performance and durability. It is specifically designed to have excellent hardness, wear resistance, and fatigue strength. Bearing steel is used to produce the inner and outer rings, as well as the rolling elements and cages of bearings. By using bearing steel, manufacturers can produce bearings that can withstand heavy loads, high speeds, and continuous rotation, ensuring smooth operation and longer lifespan of the bearings.
- Q:What are the properties of mold steel?
- Mold steel is known for its excellent hardness, wear resistance, and ability to withstand high temperatures. It possesses good machinability and can be easily polished or textured to create intricate mold designs. Mold steel also exhibits high toughness and dimensional stability, ensuring long-lasting and precise molds. Additionally, it is resistant to corrosion and offers good heat conductivity, making it suitable for various molding applications in industries such as automotive, aerospace, and consumer goods.
- Q:How is special steel recycled or disposed of?
- Special steel, also known as alloy steel, is a valuable and highly sought-after material due to its unique properties and applications. When it comes to recycling or disposing of special steel, several methods can be employed depending on the condition and quality of the material. Recycling is the preferred and most common method for dealing with special steel. The recycling process involves collecting, sorting, and melting down the steel scrap to be reused in the production of new steel products. This process helps conserve natural resources, reduce energy consumption, and minimize waste generation. The first step in recycling special steel is the collection of scrap or end-of-life products that contain this material. These sources can include discarded machinery, automotive parts, construction materials, and even old appliances. Once collected, the steel is sorted and separated from other materials, such as plastic, rubber, or non-ferrous metals, using various techniques like magnetic separation, eddy current separation, or manual sorting. After sorting, the steel scrap is sent to a specialized recycling facility, commonly known as a steel mill or foundry. Here, the scrap is melted down in large furnaces at extremely high temperatures. During this process, impurities and contaminants are removed, and alloying elements can be added to achieve the desired composition and properties of the steel. Once the steel has been melted and purified, it is cast into various forms such as ingots, billets, or slabs, which can then be used to manufacture new steel products. These products may include pipes, bars, plates, or even new machine parts, depending on the specific requirements of the industry. As for disposal, special steel should be considered a valuable resource and not simply thrown away as waste. However, in cases where the steel is damaged beyond repair or contains hazardous materials, proper disposal methods must be followed. This typically involves consulting with specialized waste management companies that can handle the safe and environmentally friendly disposal of such materials. In conclusion, special steel is primarily recycled due to its high value and the various benefits associated with recycling. Through the collection, sorting, and melting processes, special steel can be transformed into new products while conserving resources and minimizing waste. Proper disposal methods are only necessary in exceptional cases where recycling is not feasible or when dealing with damaged or hazardous materials.
- Q:What are the challenges in casting special steel?
- Some of the challenges in casting special steel include achieving the desired composition and metallurgical properties, controlling the cooling rate to prevent the formation of defects such as cracks or porosity, ensuring uniformity and consistency in the casting process, and managing the high temperatures and corrosive environments involved. Special steel often requires precise and complex casting techniques, making it more challenging than casting regular steel. Additionally, special steel alloys may have specific requirements for heat treatment or post-casting processing, which adds further complexity to the casting process.
- Q:What are the different methods of preventing pitting corrosion in special steel?
- Various methods exist to prevent pitting corrosion in special steel. The objective of these techniques is to safeguard the steel surface from the harmful effects of its environment and hinder the development of pits. Some commonly used methods include: 1. Passivation: Passivation entails treating the steel surface with a chemical solution or coating to generate a protective oxide layer. This layer functions as a barrier, obstructing the infiltration of corrosive agents and minimizing the risk of pitting corrosion. 2. Alloying: By incorporating specific alloying elements into the steel composition, its resistance to corrosion can be enhanced. Elements like chromium, nickel, and molybdenum are frequently utilized as they augment the steel's capacity to form a stable passive film and withstand pitting corrosion. 3. Cathodic protection: This technique involves either utilizing a sacrificial anode or employing an impressed current on the steel surface. By making the steel cathodic, it becomes less prone to corrosion as electrons are drawn away from it, thus preventing pit formation. 4. Coatings: Applying a protective coating to the steel surface can effectively deter pitting corrosion. Coatings such as paint, epoxy, or polymer-based materials serve as physical barriers, shielding the steel against corrosive agents. 5. Environmental control: Regulating the surrounding environment of the steel can also assist in preventing pitting corrosion. This encompasses measures like controlling temperature, humidity, and pH levels to ensure they remain within acceptable limits, thereby inhibiting the corrosion process. 6. Regular maintenance: Consistent inspection and maintenance of the steel surface are vital in preventing pitting corrosion. Any signs of damage or deterioration should be promptly addressed to prevent further corrosion and potential pitting. It should be noted that the choice of prevention method relies on various factors such as the specific steel composition, the corrosive environment, and the intended application. Proper selection and implementation of these methods can significantly enhance the resilience of special steel to pitting corrosion, guaranteeing its longevity and performance.
- Q:How is wear-resistant steel used in mining and earthmoving equipment?
- Wear-resistant steel is used in mining and earthmoving equipment to enhance their durability and longevity in harsh operating conditions. It is utilized to manufacture various components such as buckets, blades, cutting edges, and wear plates that are constantly subjected to abrasion, impact, and high stress. These steel parts ensure the equipment can withstand the abrasive nature of rocks, minerals, and other materials encountered during mining and earthmoving operations, reducing maintenance needs and increasing productivity.
- Q:What is the composition of special steel?
- The composition of special steel can vary depending on its intended use and the specific properties required. However, in general, special steel is typically an alloy of iron and carbon, with additional elements added to enhance its strength, toughness, corrosion resistance, or other desired characteristics. Some common elements that can be found in special steel compositions include chromium, nickel, manganese, molybdenum, vanadium, tungsten, and cobalt. These alloying elements are carefully selected and added in specific amounts to achieve the desired mechanical, physical, and chemical properties of the steel. The composition of special steel can be tailored to meet specific industry requirements, such as for applications in aerospace, automotive, oil and gas, or construction.
- Q:Can special steel be used in the musical instrument manufacturing industry?
- Yes, special steel can be used in the musical instrument manufacturing industry. Special steel, such as stainless steel or carbon steel, can offer durability, corrosion resistance, and unique tonal characteristics when used in the construction of musical instruments. It is commonly used for producing guitar strings, wind instrument components, and percussion instruments.
- Q:Can special steel be used in the wood manufacturing industry?
- Yes, special steel can be used in the wood manufacturing industry. Special steel, such as high-speed steel or tool steel, can be utilized in the production of cutting tools, saw blades, or other machinery components used in wood processing. These types of steel offer enhanced durability, hardness, and resistance to wear, making them suitable for various wood manufacturing applications.
- Q:What are the different surface modification techniques used for special steel?
- There are several surface modification techniques used for special steel to enhance its properties and improve its performance in specific applications. Some of the common techniques include: 1. Nitriding: Nitriding is a surface hardening process that involves the diffusion of nitrogen into the steel surface. It forms a hard layer of nitrides, which significantly increases the surface hardness, wear resistance, and fatigue strength of the steel. 2. Carbonitriding: Carbonitriding is a similar process to nitriding, but it involves the diffusion of both carbon and nitrogen into the steel surface. This technique increases the surface hardness and also improves the wear resistance and fatigue strength of the steel. 3. Case hardening: Case hardening involves the addition of a hard, wear-resistant layer to the surface of the steel. This can be achieved through processes like carburizing or carbonitriding, where carbon is introduced into the surface layer, transforming it into a high-carbon martensitic layer. 4. Shot peening: Shot peening is a technique that involves bombarding the steel surface with small, high-velocity shots of media, such as steel, ceramic, or glass beads. This process induces compressive stresses on the surface, improving its fatigue strength and resistance to stress corrosion cracking. 5. Electroplating: Electroplating is a common technique used to apply a thin layer of metal coating onto the steel surface. This can be done with various metals like zinc, nickel, or chromium, providing protection against corrosion, improving aesthetics, and enhancing wear resistance. 6. Physical vapor deposition (PVD): PVD is a coating technique that involves depositing thin layers of material onto the steel surface through a vacuum process. This technique can be used to apply coatings like titanium nitride (TiN), which provides excellent wear resistance and reduces friction. 7. Laser surface modification: Laser surface modification techniques, such as laser hardening or laser alloying, use a high-energy laser beam to selectively heat and modify the steel surface. This process can improve hardness, wear resistance, and corrosion resistance. These surface modification techniques can be tailored to meet specific requirements, enhancing the properties of special steel for various applications in industries such as automotive, aerospace, and tooling.
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Mild Steel HRB 400 Steel Rebar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 130 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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