Steel Rebar HRB400 Grade for Building Material
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 150 m.t.
- Supply Capability:
- 500000 m.t./month
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Specification
Steel Rebar HRB400 Grade for Building
Description of Steel Rebar HRB400 Grade for Building
1, Diameter: 5.5mm-10mm Steel Rebar HRB400 Grade for Building
10m- 40mm Steel Rebar HRB400 Grade for Building
2, Length: 6m, 9m, 12m or customized
3, Standard: GB, ASTM, AISI, SAE, DIN, JIS, EN
2, Produce Process: 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.
Chemical Composition of Steel Rebar HRB400 Grade for Building
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 Steel Rebar HRB400 Grade for Building
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 special steel tested for quality and durability?
- Special steel is tested for quality and durability through a series of rigorous tests and inspections. These tests typically include measuring mechanical properties such as tensile strength, hardness, and impact resistance. Additionally, non-destructive testing methods like ultrasonic and magnetic particle inspections are used to detect any internal defects or inconsistencies. Quality and durability are ensured by adhering to strict industry standards and specifications, and only steel that meets the required criteria is deemed suitable for use.
- Q: What are the different surface treatment techniques for special steel?
- There are several surface treatment techniques for special steel, including electroplating, hot-dip galvanizing, powder coating, and passivation. Electroplating involves depositing a thin layer of metal onto the steel surface to improve its corrosion resistance. Hot-dip galvanizing involves immersing the steel in molten zinc to create a protective coating. Powder coating involves applying a dry powder to the steel surface, which is then cured to create a durable and decorative finish. Passivation is a chemical process that removes impurities from the steel surface, enhancing its corrosion resistance.
- Q: How does special steel resist deformation under load?
- Special steel resists deformation under load due to its unique properties and composition. It is typically made with higher levels of alloying elements such as chromium, nickel, and molybdenum, which enhance its strength, hardness, and toughness. These alloying elements form strong bonds within the steel's crystal lattice structure, making it more resistant to deformation. Additionally, special steels often undergo heat treatment processes such as quenching and tempering, which further refine their microstructure and increase their ability to withstand loads without deforming. Overall, the combination of alloying elements and heat treatment techniques allows special steel to maintain its shape and structural integrity even under high-stress conditions.
- Q: What are the different methods of surface etching for special steel?
- There are several different methods of surface etching that can be used for special steel. These methods include: 1. Chemical etching: Chemical etching involves the use of various acids or other chemical solutions to selectively remove material from the surface of the steel. This method allows for precise control over the etching process and can create highly detailed patterns or designs on the steel surface. 2. Electrochemical etching: Electrochemical etching uses an electrical current to etch the surface of the steel. This method can be particularly effective for creating deep, uniform etches and is often used for marking or labeling purposes. 3. Laser etching: Laser etching involves the use of a high-powered laser to remove material from the steel surface. This method is highly precise and can create very intricate designs or markings. Laser etching is commonly used for branding or decorative purposes. 4. Mechanical etching: Mechanical etching utilizes physical abrasion to remove material from the steel surface. This can be done manually using tools such as sandpaper or brushes, or with the help of machinery like a sandblaster. Mechanical etching is often used to create a textured or roughened surface. 5. Plasma etching: Plasma etching involves the use of a high-energy plasma to remove material from the steel surface. This method is particularly useful for creating very fine, shallow etches and is commonly used in microfabrication or semiconductor manufacturing. Each of these methods has its own advantages and limitations, and the choice of which method to use will depend on factors such as the desired outcome, the type of special steel being etched, and the available equipment and resources.
- Q: How does special steel contribute to the construction machinery industry?
- Special steel plays a crucial role in the construction machinery industry by providing high-strength and durable components. These components are essential for heavy-duty applications in construction machinery, such as excavators, bulldozers, cranes, and loaders. One of the key contributions of special steel to the construction machinery industry is its ability to withstand extreme stress and load-bearing requirements. Construction machinery often operates under severe conditions, including heavy loads, vibrations, and impacts. Special steel, with its excellent mechanical properties, can resist these conditions and maintain its structural integrity, ensuring the safety and reliability of the equipment. Moreover, special steel is often used in critical components of construction machinery, such as booms, buckets, tracks, and gears. These components are subjected to intense wear and tear due to constant use in harsh environments. Special steel, engineered with enhanced hardness and wear resistance, helps extend the lifespan of these components, reducing maintenance costs and downtime. Additionally, special steel provides superior corrosion resistance, which is vital for construction machinery used in humid or corrosive environments. By preventing rust and decay, special steel helps maintain the equipment's performance and longevity, ultimately increasing productivity and efficiency in construction projects. Furthermore, special steel enables the construction machinery industry to achieve innovative designs and advanced functionalities. Its versatility allows for the creation of complex shapes and precise tolerances, which are essential for optimizing the performance and efficiency of machinery. Special steel also enables the incorporation of advanced technologies, such as sensors and automation, enhancing the accuracy and productivity of construction equipment. In summary, special steel contributes significantly to the construction machinery industry through its ability to withstand extreme conditions, provide superior wear resistance and corrosion protection, and enable innovative designs. By utilizing special steel in the manufacturing process, construction machinery manufacturers can ensure the durability, safety, and efficiency of their equipment, ultimately benefiting the construction industry as a whole.
- Q: How is tool and die steel used in the manufacturing of molds and dies?
- Tool and die steel is used in the manufacturing of molds and dies because of its high hardness, wear resistance, and toughness properties. It is used to create and shape various components of molds and dies, such as inserts, cavities, and cores, which are crucial in the production of plastic, metal, or other materials. Additionally, tool and die steel also provides the necessary strength and durability to withstand the high pressure, heat, and repeated use involved in the manufacturing process.
- Q: How does special steel contribute to the industrial equipment industry?
- Special steel contributes to the industrial equipment industry by offering superior strength, durability, and resistance to corrosion and wear. It allows manufacturers to produce high-quality components and machinery that can withstand extreme conditions, resulting in longer equipment lifespan and improved performance. Additionally, special steel's versatility enables the production of complex shapes and sizes, leading to enhanced design possibilities and increased efficiency in various industrial applications.
- Q: How does special steel contribute to the automotive racing machinery industry?
- Special steel contributes to the automotive racing machinery industry by providing high strength, durability, and superior performance. It is used in the construction of various components such as engine parts, chassis, and suspension systems, enabling the vehicles to withstand extreme conditions and achieve higher speeds. Special steel also allows for weight reduction, improving fuel efficiency and maneuverability. Overall, it plays a crucial role in enhancing the performance and reliability of racing cars, making them more competitive on the track.
- Q: What are the specific requirements for special steel used in the nuclear industry?
- To ensure the safety, durability, and reliability of special steel used in the nuclear industry, it must meet certain requirements. These requirements encompass the following: 1. Radiation Resistance: Special steel must exhibit high resistance to radiation in order to endure the intense levels present in nuclear reactors. This entails low neutron absorption and minimal degradation when subjected to irradiation. 2. Strength and Toughness: Given the extreme conditions in which nuclear reactors operate, special steel must possess exceptional strength and toughness to prevent structural failure under high temperatures and pressure. 3. Corrosion Resistance: Steel employed in nuclear applications must have a high resistance to corrosion, as exposure to corrosive environments can compromise the integrity of reactor components. This necessitates low susceptibility to stress corrosion cracking, intergranular corrosion, and pitting corrosion. 4. Impurity Content: Special steel must have a low impurity content to mitigate the risk of radioactive contamination. Impurities within the steel can activate and release radioactive particles, posing a significant safety hazard. 5. Thermal Stability: The steel must maintain its mechanical properties even under elevated temperatures, displaying excellent thermal stability. This ensures reliability and expected performance during prolonged exposure to high heat. 6. Non-Magnetic Properties: Certain nuclear reactor components require non-magnetic materials to prevent interference with sensitive instruments and equipment. Special steel used in these applications must possess non-magnetic properties to meet this requirement. 7. Regulatory Compliance: Special steel used in the nuclear industry must adhere to specific regulatory standards and certifications to confirm its suitability for use in nuclear facilities. These standards may vary by country or region, but generally involve rigorous quality control, testing, and inspection procedures. Compliance with these particular requirements is vital for maintaining the safety and integrity of nuclear reactors. By meeting these standards, special steel can withstand the harsh conditions and potential hazards associated with nuclear power generation.
- Q: What are the main applications of special steel in the mining transportation?
- Special steel is widely used in mining transportation for various applications. One of the main applications is in the manufacturing of mining equipment such as drill bits, cutting tools, and conveyor belts. Special steel's superior strength, hardness, and resistance to wear and corrosion make it ideal for these components, ensuring their durability and longevity in harsh mining environments. Additionally, special steel is also used in the construction of mine shafts, tunnels, and bridges, where its high tensile strength and resistance to extreme temperatures are crucial. Overall, special steel plays a vital role in enhancing the performance, safety, and efficiency of mining transportation systems.
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Steel Rebar HRB400 Grade for Building Material
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 150 m.t.
- Supply Capability:
- 500000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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