Cold Rolled Ribbed Bars 6mm 8mm 10mm 12mm
- 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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Item specifice
Type:
Carbon Steel
Shape:
Steel Round Bar
Standard:
AISI,JIS,GB,BS,DIN,EN,ASTM
Thickness:
6mm
Technique:
Hot Rolled,Cold Rolled
Shape:
Round
Surface Treatment:
Galvanized,Black
Steel Grade:
RHB335,HRB400
Certification:
ISO,SGS
Length:
12m
Net Weight:
22kg
Cold Rolled Ribbed Bars 6mm
Description of Cold Rolled Ribbed Bars 6mm
1, Diameter: 5.5mm-10mm Cold Rolled Ribbed Bars 6mm
10m- 40mm Cold Rolled Ribbed Bars 6mm
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 Cold Rolled Ribbed Bars 6mm
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 Cold Rolled Ribbed Bars 6mm
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 maraging steel used in the production of aerospace components?
- Maraging steel is extensively used in the production of aerospace components due to its exceptional strength, toughness, and resistance to wear and fatigue. Its unique properties, achieved through a special aging process, make it ideal for critical components such as landing gear, engine shafts, and missile casings. The high strength-to-weight ratio of maraging steel allows for lighter, more fuel-efficient aircraft, while its durability ensures long-lasting performance in demanding aerospace environments.
- Q:How is electrical steel used in the production of transformers and motors?
- Electrical steel is primarily used in the production of transformers and motors due to its magnetic properties. It is used as the core material in the construction of transformers to efficiently transmit electrical energy by reducing energy losses through magnetic hysteresis and eddy currents. In motors, electrical steel is used to create the stator and rotor laminations, which enhance the magnetic field and enable efficient conversion of electrical energy into mechanical motion. Overall, electrical steel plays a crucial role in improving the performance and energy efficiency of transformers and motors.
- Q:What are the requirements for special steel used in high-strength applications?
- To ensure the performance and durability of special steel used in high-strength applications, specific requirements must be met. These requirements encompass various factors: 1. High tensile strength is crucial in withstanding heavy loads and resisting deformation. It enables the steel to endure greater stresses without failure. 2. Excellent toughness is essential as it allows the steel to absorb energy and resist fracture. This prevents sudden and catastrophic failure under impact or dynamic loading conditions. 3. Superior hardness is necessary to resist wear, abrasion, and indentation. It ensures that the material maintains its structural integrity and performance even in extreme conditions. 4. Good ductility is important alongside high tensile strength. It allows the steel to undergo plastic deformation without fracturing, making it suitable for forming or shaping during manufacturing. 5. Resistance to corrosion is vital to prevent degradation caused by moisture, chemicals, or harsh environments. This ensures the longevity and reliability of the steel in various conditions. 6. Heat resistance is required for applications involving high temperatures. It allows the steel to maintain its mechanical properties and structural stability under elevated temperatures. 7. Controlled alloying elements, such as chromium, molybdenum, nickel, or vanadium, are often added to enhance the steel's strength, toughness, hardness, and other desired properties. 8. Precise composition and microstructure are necessary to ensure consistent and predictable mechanical properties. This can be achieved through precise manufacturing processes like controlled cooling rates or heat treatments. By meeting these requirements, special steel used in high-strength applications can endure the demanding conditions it faces, providing reliable performance, longevity, and safety.
- Q:How does the heat treatment process affect special steel?
- The heat treatment process greatly affects special steel by altering its microstructure and improving its mechanical properties. It involves heating the steel to a specific temperature and then cooling it in a controlled manner. This process can increase the steel's hardness, strength, toughness, and wear resistance, making it suitable for various applications in industries such as automotive, aerospace, and tool manufacturing. Additionally, heat treatment can also enhance the steel's dimensional stability and corrosion resistance, further improving its overall performance.
- Q:What are the different methods of preventing galvanic corrosion in special steel?
- There are several methods available to prevent galvanic corrosion in special steel: 1. Coating: Applying a protective coating to the surface of the steel can prevent direct contact between the steel and the corrosive environment. This can be done using various types of coatings such as paints, epoxy, or polyurethane. The coating acts as a barrier and prevents the formation of galvanic cells. 2. Cathodic protection: This method involves making the steel the cathode in a galvanic cell, which prevents corrosion. This can be achieved through two techniques: sacrificial anode cathodic protection and impressed current cathodic protection. Sacrificial anode cathodic protection involves connecting a more reactive metal, such as zinc or magnesium, to the steel. The sacrificial anode corrodes instead of the steel, protecting it. Impressed current cathodic protection involves applying a low-level direct current to the steel, which prevents the formation of galvanic cells. 3. Isolation: By physically separating the special steel from other metals that are more reactive, galvanic corrosion can be prevented. This can be done by using insulating materials, such as plastic or rubber, between the steel and other metals. 4. Alloying: The addition of certain alloying elements to the special steel can improve its resistance to galvanic corrosion. For example, adding chromium to steel forms a passive oxide layer on the surface, which acts as a barrier against corrosion. 5. Design considerations: Proper design and engineering can also help prevent galvanic corrosion. For example, avoiding the use of dissimilar metals in close proximity can minimize the potential for galvanic corrosion. Additionally, designing structures to allow for proper drainage and ventilation can prevent the accumulation of moisture, which can accelerate galvanic corrosion. It is important to note that the selection of the most appropriate method for preventing galvanic corrosion in special steel depends on various factors such as the specific environment, cost considerations, and the desired lifespan of the steel.
- Q:How does special steel contribute to energy efficiency?
- Special steel contributes to energy efficiency in several ways. Firstly, special steel is used in the construction of energy-efficient appliances and equipment, such as refrigerators, air conditioners, and turbines. The high strength and durability of special steel allow for more efficient operation and reduced energy consumption of these devices. Additionally, special steel is utilized in the manufacturing of energy-efficient vehicles, such as hybrid and electric cars. The lightweight yet strong properties of special steel enable the production of lighter vehicles that require less energy to propel, improving fuel efficiency and reducing emissions. Overall, special steel plays a crucial role in enhancing energy efficiency across various industries, contributing to a more sustainable and environmentally friendly future.
- Q:How does special steel contribute to the chemical processing industry?
- Special steel contributes to the chemical processing industry by offering exceptional resistance to corrosion, high temperatures, and pressure. It is used in the production of various equipment such as valves, pipes, reactors, and heat exchangers, ensuring the safe and efficient handling of corrosive chemicals. Additionally, the unique properties of special steel enable the construction of durable and reliable structures, minimizing downtime and maintenance costs in chemical plants.
- Q:What are the different methods of surface shot blasting for special steel?
- There are several methods of surface shot blasting for special steel, including wheel blasting, air blasting, and centrifugal blasting. Wheel blasting involves using a rotating wheel to propel abrasive particles onto the steel surface, while air blasting uses compressed air to propel the particles. Centrifugal blasting involves a spinning rotor that propels the particles onto the steel surface. These methods help remove rust, scale, and other contaminants from the steel surface, preparing it for further treatment or coating.
- Q:What are the different methods for surface hardening special steel?
- There are several methods for surface hardening special steel, including carburizing, nitriding, induction hardening, flame hardening, and laser hardening. Carburizing involves introducing carbon into the surface of the steel through heating in a carbon-rich environment. Nitriding involves diffusing nitrogen into the surface of the steel to create a hard nitride layer. Induction hardening uses electromagnetic induction to heat the surface of the steel and then rapidly quench it to increase hardness. Flame hardening involves heating the surface of the steel with a flame and then quenching it to harden the surface. Laser hardening uses a high-intensity laser beam to heat the surface of the steel and then quench it, resulting in a hardened surface.
- Q:How does cryogenic treatment affect the toughness of special steel?
- Cryogenic treatment has a significant impact on the toughness of special steel. It involves subjecting the steel to extremely low temperatures, typically below -150 degrees Celsius, for an extended period. This process transforms the microstructure of the steel, resulting in improved mechanical properties, including increased toughness. During cryogenic treatment, the steel undergoes a process called martensitic transformation, where the carbon atoms in the steel lattice rearrange themselves. This transformation leads to the formation of additional carbides, which are responsible for strengthening the steel and increasing its toughness. These carbides act as barriers, impeding the propagation of cracks and enhancing the resistance of the steel to fracture. Furthermore, cryogenic treatment also reduces the presence of retained austenite, a metastable phase in steel that can negatively impact its mechanical properties. The transformation of retained austenite into martensite during cryogenic treatment further improves the toughness of the steel. The increased toughness of cryogenically treated special steel makes it suitable for various applications that require high strength and resistance to fracture. It enhances the steel's ability to withstand heavy loads, impacts, and harsh environments. Additionally, cryogenic treatment can improve the wear resistance and dimensional stability of special steel. It is important to note that while cryogenic treatment can significantly enhance the toughness of special steel, it is not a standalone solution. Other factors, such as the initial composition and heat treatment of the steel, also play a crucial role in determining its overall mechanical properties. Therefore, cryogenic treatment should be considered as a complementary process to optimize the toughness of special steel.
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Cold Rolled Ribbed Bars 6mm 8mm 10mm 12mm
- 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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