Astm Gr60 Steel Reinforcing Rebar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 120 m.t.
- Supply Capability:
- 500000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Specification
Type:
Carbon Steel
Shape:
Steel Round Bar
Astm Gr60 Steel Reinforcing Rebar
Description of Astm Gr60 Steel Reinforcing Rebar
1, Diameter: 5.5mm-10mm Astm Gr60 Steel Reinforcing Rebar
10m- 40mm Astm Gr60 Steel Reinforcing 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 Astm Gr60 Steel Reinforcing 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 Astm Gr60 Steel Reinforcing 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 does special steel contribute to the automotive emission reduction?
- Special steel contributes to automotive emission reduction in several ways. Firstly, special steel can be used in the manufacturing of lightweight components, such as body frames and engine parts. These lightweight components help reduce the overall weight of the vehicle, leading to improved fuel efficiency and lower emissions. Additionally, special steel can be utilized in the construction of exhaust systems, which are designed to effectively reduce harmful emissions. Special steel's high strength and corrosion resistance properties make it an ideal material for these components, ensuring their durability and effectiveness in reducing emissions. Overall, the use of special steel in the automotive industry plays a significant role in achieving emission reduction targets and promoting a more sustainable future.
- Q: What are the environmental impacts of producing special steel?
- The environmental impacts of producing special steel can include air pollution from emissions released during the steelmaking process, such as carbon dioxide, sulfur dioxide, and nitrogen oxide. Additionally, the extraction of raw materials for steel production, such as iron ore and coal, can result in deforestation, habitat destruction, and water pollution. The energy-intensive nature of steel production also contributes to greenhouse gas emissions and climate change. Proper waste management and implementation of sustainable practices can mitigate some of these environmental impacts.
- Q: How is alloy steel used in the production of gears and shafts?
- Alloy steel is commonly used in the production of gears and shafts due to its high strength, durability, and resistance to wear and fatigue. The addition of various alloying elements, such as chromium, nickel, and molybdenum, enhances the material's mechanical properties, making it suitable for heavy-duty applications. Alloy steel gears and shafts can withstand high loads, transmit torque efficiently, and provide reliable performance, ensuring smooth operation and prolonged lifespan in various industries, including automotive, aerospace, and manufacturing.
- Q: What are the main factors affecting the impact toughness of special steel?
- Various factors influence the impact toughness of special steel and other materials. The impact toughness of special steel can be affected by the following main factors: 1. Composition: The impact toughness of the steel is greatly influenced by its chemical composition. Adding elements like carbon, manganese, silicon, nickel, and molybdenum can enhance the toughness of the steel. Higher carbon content generally increases hardness but decreases toughness, while alloying elements like nickel and molybdenum can improve toughness. 2. Heat treatment: The impact toughness of special steel can be significantly altered by the heat treatment process, including quenching and tempering. Proper heat treatment can refine the steel's microstructure, making it more resistant to fractures and increasing its toughness. 3. Microstructure: The toughness of the steel is heavily influenced by its microstructure, including the size, shape, and distribution of its grains. Fine-grained steels generally exhibit better toughness compared to coarse-grained ones. The presence of certain phases, such as martensite or bainite, can also impact the impact toughness. 4. Inclusions: The presence of non-metallic inclusions, such as sulfides, oxides, or carbides, in the steel can act as stress concentration points and reduce its impact toughness. High-quality special steels often undergo processes like vacuum degassing or electroslag remelting to minimize these inclusions. 5. Processing conditions: The manufacturing processes used to produce special steel can affect its impact toughness. Factors like forging, rolling, or extrusion conditions, as well as the cooling rate during solidification, can impact the microstructure and, consequently, the toughness of the steel. 6. Temperature: The impact toughness of special steel varies with temperature. Some steels exhibit good toughness at low temperatures, while others perform better at higher temperatures. The temperature at which the steel is used or tested is an important factor to consider when evaluating its impact toughness. It is important to note that standardized tests, such as the Charpy or Izod test, are often used to determine the impact toughness of special steel. These tests involve subjecting a notched specimen to impact loading and provide valuable information on the steel's ability to absorb energy and resist fracture under impact conditions.
- Q: What are the different heat treatment processes used in special steel production?
- Some of the different heat treatment processes used in special steel production include annealing, quenching, tempering, and normalizing. Annealing is a process of heating and slowly cooling the steel to relieve internal stresses and enhance its ductility. Quenching involves rapidly cooling the steel to increase its hardness and strength. Tempering is done after quenching to reduce brittleness and improve toughness. Normalizing is a heat treatment process that involves heating the steel to a specific temperature and then cooling it in still air to achieve a uniform structure. These processes are essential for achieving the desired mechanical properties and performance of special steel.
- Q: What are the different inspection methods used for special steel?
- There are several inspection methods used for special steel, including visual inspection, magnetic particle inspection, ultrasonic inspection, and dye penetrant inspection. Visual inspection involves examining the steel for any surface defects or irregularities. Magnetic particle inspection uses magnetic fields and iron particles to detect any cracks or defects in the steel. Ultrasonic inspection involves sending high-frequency sound waves through the steel to identify any internal flaws or defects. Dye penetrant inspection involves applying a colored liquid to the steel's surface, which seeps into any cracks or defects, revealing their presence. These methods help ensure the quality and integrity of special steel products.
- Q: How does special steel perform in high-temperature fatigue resistance?
- The excellent performance of special steel in high-temperature fatigue resistance is well-known. Unlike ordinary steel, special steel contains alloying elements like chromium, nickel, and molybdenum, which improve its mechanical properties and resistance to fatigue at elevated temperatures. When exposed to high temperatures, the microstructure of special steel undergoes significant changes that can result in the initiation and propagation of cracks. However, the presence of alloying elements in special steel plays a crucial role in stabilizing the microstructure, thereby preventing the formation and growth of cracks. This ensures that the material can withstand cyclic loading and maintain its structural integrity even in extreme temperature conditions. Furthermore, special steel possesses exceptional heat resistance, allowing it to retain its mechanical strength and hardness at high temperatures. This characteristic is vital in applications where components are subjected to repeated thermal cycles or continuous exposure to high temperatures, such as in gas turbines, power plants, and aerospace engines. Moreover, the composition and heat treatment of special steel also influence its high-temperature fatigue resistance. By precisely controlling the alloying elements and employing appropriate heat treatment processes, the fatigue life and resistance to thermal fatigue of the material can be further improved. To conclude, special steel demonstrates remarkable performance in high-temperature fatigue resistance due to its unique composition and microstructure. Its ability to endure cyclic loading, maintain mechanical properties, and resist crack formation in extreme temperature conditions make it a preferred choice for demanding applications across various industries.
- Q: What are the properties of ultra-high-strength steel?
- Ultra-high-strength steel possesses exceptional mechanical properties, including high tensile strength, excellent toughness, and superior fatigue resistance. It exhibits high stiffness, enabling it to withstand heavy loads and maintain its shape even under extreme conditions. With its low weight and high strength-to-weight ratio, this steel offers enhanced fuel efficiency and increased payload capacity. Additionally, it exhibits good weldability, corrosion resistance, and is often used in applications where both strength and durability are paramount, such as in automotive, aerospace, and construction industries.
- Q: What is the difference between stainless steel and special steel?
- Stainless steel is a specific type of steel that contains a minimum of 10.5% chromium, which forms a protective layer on its surface, making it highly resistant to corrosion. On the other hand, special steel refers to a wide range of alloy steels that are specifically designed for certain applications or have unique properties, such as high strength, heat resistance, or electrical conductivity. While stainless steel is known for its corrosion resistance, special steel encompasses various types with different compositions and characteristics to meet specific industrial requirements.
- Q: What are the different methods of improving the machinability of special steel?
- To enhance the machinability of special steel, various techniques can be employed. These techniques encompass: 1. Alloying: The machinability can be improved by incorporating specific alloying elements like sulfur, selenium, lead, or bismuth into the steel composition. These elements serve as lubricants during machining, reducing friction and cutting forces. 2. Heat treatment: Enhancing the machinability of special steel can be achieved through heat treatment processes such as annealing, normalizing, or stress relieving. These processes refine the microstructure, lower hardness, and increase ductility, facilitating easier machining. 3. Modifying the microstructure: The machinability of special steel can be enhanced by modifying its microstructure through grain refinement or controlled precipitation of carbides. Generally, fine-grained steels are easier to machine due to reduced cutting forces. 4. Surface coatings: The application of specialized coatings like titanium nitride (TiN) or diamond-like carbon (DLC) onto the surface of special steel can minimize friction, extend tool life, and enhance chip flow during machining. 5. Optimal tool selection and optimization: The choice of cutting tools with specific geometries, coatings, and cutting parameters can greatly enhance machinability. Selecting the ideal tool ensures efficient chip evacuation, minimizes heat generation, and reduces tool wear. 6. Optimization of machining parameters: Adjusting parameters such as cutting speed, feed rate, and depth of cut significantly impacts machinability. Fine-tuning these parameters helps reduce tool wear, control chip formation, and achieve superior surface finish. 7. Lubrication and cooling: Employing appropriate lubrication and cooling methods, such as cutting fluids or coolants, enhances machinability by reducing friction and heat generation during machining. This prolongs tool life and minimizes workpiece deformation. It is essential to consider that the specific technique or combination of techniques utilized to improve machinability will depend on the type of special steel and the desired machining outcome.
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Astm Gr60 Steel Reinforcing Rebar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 120 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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