HRB400 High Tensile Rebars for Building Material
- Ref Price:
-
$300.00 - 500.00
/ m.t.
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 500000 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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Specification
Type:
Carbon Steel
Shape:
Steel Round Bar
Standard:
DIN,BS,GB,JIS,AISI,EN,ASTM
Shape:
Round
Technique:
Hot Rolled,Cold Rolled
Certification:
SGS,ISO
Steel Grade:
HRB400,RHB335
Surface Treatment:
Black,Galvanized
Thickness:
6mm
Length:
12m
Net Weight:
22kg
HRB400 High Tensile Rebars for Building Material
Description of HRB400 High Tensile Rebars for Building Material
1, Diameter: 5.5mm-10mm HRB400 High Tensile Rebars for Building Material
10m- 40mm HRB400 High Tensile Rebars for Building Material
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 HRB400 High Tensile Rebars for Building Material
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 HRB400 High Tensile Rebars for Building Material
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: What is the role of special steel in the oil and gas industry?
- Special steel plays a crucial role in the oil and gas industry as it is used for various applications that require high strength, corrosion resistance, and durability. It is extensively used in the construction of pipelines, offshore platforms, drilling equipment, and storage tanks. Special steel ensures the integrity and reliability of these critical components, enabling safe and efficient operations in the challenging and harsh environments of the oil and gas industry.
- Q: What is the impact of grain size on the mechanical properties of special steel?
- The mechanical properties of special steel are significantly affected by the size of its grains. Grain size refers to the dimensions and arrangement of individual crystals within the steel structure. It is determined by various factors, including the speed at which the steel solidifies and subsequent heat treatments. In general, smaller grain sizes in special steel result in improved mechanical properties. This is because smaller grains provide more grain boundaries, which act as obstacles to the movement of dislocations and enhance the steel's strength. Smaller grains also contribute to a more uniform microstructure, enhancing overall toughness and resistance to fracture. Furthermore, smaller grain sizes promote higher hardness and increased resistance to wear in special steel. This is because the greater number of grain boundaries impedes dislocation movement, preventing plastic deformation and resulting in higher hardness values. Conversely, larger grain sizes can have a detrimental effect on the mechanical properties of special steel. Larger grains have fewer grain boundaries, allowing dislocations to move more freely. As a result, the strength, toughness, and hardness of the steel are diminished. Additionally, larger grains can lead to anisotropic behavior, where the mechanical properties vary in different crystallographic directions. This makes the steel more vulnerable to failure under specific loading conditions. Therefore, it is crucial to control and optimize the grain size in special steel to achieve the desired mechanical properties. This can be accomplished through precise heat treatments, such as annealing or quenching, which regulate the cooling rate and subsequent recrystallization processes. By controlling the grain size, special steel can be tailored to meet specific application requirements, ensuring optimal mechanical performance and reliability.
- Q: How does special steel contribute to the chemical industry?
- Special steel plays a crucial role in the chemical industry by offering exceptional corrosion resistance and high temperature resistance properties. It is used to manufacture various equipment such as storage tanks, pipelines, valves, and reactors, which are essential for handling corrosive chemicals and operating under extreme conditions. Special steel ensures the integrity and safety of these structures, preventing leaks and maintaining product quality, thus enabling efficient and reliable chemical processes.
- Q: What are the different types of welding techniques used for special steel?
- Special steel can be welded using various techniques depending on its specific requirements and properties. Some commonly used techniques for welding special steel include: 1. Stick welding, also known as Shielded Metal Arc Welding (SMAW), involves using a consumable electrode coated in flux to create an electric arc between the electrode and the base metal. This technique is ideal for thicker sections of special steel due to its ability to generate high heat and deep penetration. 2. Gas Metal Arc Welding (GMAW), also known as MIG welding, utilizes a continuously fed wire electrode and a shielding gas to protect the weld from atmospheric contamination. Its versatility and ability to produce high-quality welds with good control make it widely used for special steel. 3. Gas Tungsten Arc Welding (GTAW), also known as TIG welding, employs a non-consumable tungsten electrode and a shielding gas to create an electric arc. This technique is often preferred for special steel alloys that require precise control over the welding process and where weld quality and appearance are crucial. 4. Flux-Cored Arc Welding (FCAW), similar to GMAW, employs a continuously fed tubular electrode filled with flux. This technique is commonly used for special steel applications that necessitate high deposition rates and deep penetration, such as heavy fabrication or structural welding. 5. Submerged Arc Welding (SAW) involves creating an arc between a continuously fed bare electrode and the workpiece, while a layer of granular flux covers the arc. This technique is typically used for heavy-duty applications and thick materials, providing excellent weld quality and high deposition rates. 6. Laser Beam Welding (LBW) utilizes a highly focused laser beam to melt and join special steel parts. It offers precise control, high welding speeds, and minimal distortion, making it suitable for specialized applications that require high precision and minimal heat-affected zones. It is crucial to consider factors such as material composition, thickness, joint configuration, and desired weld properties when selecting the appropriate welding technique for special steel. Expertise and knowledge are essential to determine the best technique for a specific application, ensuring optimal results in terms of weld quality, strength, and durability.
- Q: How does special steel contribute to the aerospace fuel efficiency?
- Special steel contributes to aerospace fuel efficiency in several ways. Firstly, it is used in the construction of lightweight yet strong components, such as engine parts and airframe structures. By reducing the weight of these parts, the overall weight of the aircraft is decreased, resulting in reduced fuel consumption. Additionally, special steel alloys can withstand high temperatures and pressures, allowing engines to operate more efficiently. This improves the engine's performance, leading to increased fuel efficiency. Overall, the use of special steel in aerospace applications plays a crucial role in enhancing fuel efficiency and reducing environmental impact.
- Q: What are the different galvanizing techniques used for special steel?
- There are several galvanizing techniques used for special steel, each with its own advantages and considerations. Some common techniques include hot-dip galvanizing, electro-galvanizing, and mechanical galvanizing. Hot-dip galvanizing involves immersing the steel in a bath of molten zinc, creating a thick, durable coating. Electro-galvanizing uses an electric current to deposit a thin layer of zinc onto the steel surface. Mechanical galvanizing, also known as centrifuge galvanizing, uses centrifugal force to apply a zinc coating. Each technique has its own specific applications and benefits, depending on factors such as the desired thickness of the coating, the complexity of the steel structure, and the intended use of the galvanized steel.
- Q: What are the different international trade regulations for special steel?
- The different international trade regulations for special steel vary depending on the specific country and region. These regulations may include import and export restrictions, tariffs, quotas, anti-dumping measures, quality standards, labeling requirements, and intellectual property rights protection. Additionally, special steel may be subject to specific regulations related to its use in certain industries such as aerospace or automotive. It is important for businesses involved in international trade of special steel to stay updated on these regulations to ensure compliance and smooth operations.
- Q: How does special steel contribute to the manufacturing of defense equipment?
- Special steel plays a crucial role in the manufacturing of defense equipment due to its exceptional properties. It provides enhanced strength, durability, and resistance to extreme conditions, making it ideal for critical components such as armor plates, missile casings, or aircraft parts. Special steel's ability to withstand high temperatures, impacts, and corrosion ensures the reliability and longevity of defense equipment, ultimately enhancing the safety and effectiveness of military operations.
- Q: What are the applications of high-speed steel?
- High-speed steel has various applications due to its exceptional properties. It is commonly used in the manufacturing of cutting tools such as drills, saw blades, milling cutters, and taps. Its high hardness and heat resistance make it suitable for machining operations on materials like steel, cast iron, and non-ferrous alloys. Additionally, high-speed steel is also used in the production of power tool bits, punches, and dies, where its wear resistance and toughness are advantageous.
- Q: What are the requirements for special steel used in chemical processing?
- The demands for special steel used in chemical processing are generally stricter compared to regular steel due to the harsh and corrosive nature of the chemicals involved. Some of the key prerequisites for special steel in chemical processing include: 1. Corrosion resistance: Special steel employed in chemical processing must possess a high resistance to corrosion caused by acids, alkalis, and other corrosive chemicals. This is accomplished by incorporating alloying elements like chromium, nickel, and molybdenum, which create a protective oxide layer on the steel's surface, preventing it from reacting with the chemicals. 2. High temperature resistance: Chemical processing frequently involves reactions at high temperatures. Consequently, special steel used in this industry must exhibit excellent heat resistance to maintain its strength and structural integrity under elevated temperatures. This is achieved by incorporating elements such as chromium, nickel, and tungsten, which aid in preserving the steel's stability at high temperatures. 3. Mechanical strength: Special steel employed in chemical processing should possess adequate mechanical strength to withstand the pressures and loads encountered in process equipment. This requirement is fulfilled by incorporating alloying elements like manganese, silicon, and carbon, which enhance the steel's strength and toughness. 4. Weldability: Weldability is a crucial requirement for special steel used in chemical processing as it allows for easy fabrication and installation of process equipment. Special steel with good weldability ensures robust and reliable joints, which are vital for the safe and efficient operation of chemical plants. 5. Resistance to stress corrosion cracking: Stress corrosion cracking is a significant concern in chemical processing environments. Therefore, special steel used in this industry should exhibit good resistance to stress corrosion cracking, which is accomplished by carefully selecting the alloying elements and controlling the material's microstructure. 6. Cleanliness: Special steel employed in chemical processing should be free from impurities and have a low content of harmful elements that could contaminate the process or react with the chemicals. This necessitates stringent quality control measures during steel production to ensure the desired cleanliness and purity. Meeting these requirements guarantees that special steel used in chemical processing can endure the aggressive chemical environment, high temperatures, and mechanical stresses encountered in the industry, resulting in safe and reliable operation of process equipment.
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HRB400 High Tensile Rebars for Building Material
- Ref Price:
-
$300.00 - 500.00
/ m.t.
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 500000 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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