Hot Rolled Spring Steel Bar 60Si2CrA with High Quality for Construction
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25000 m.t.
- Supply Capability:
- 200000 m.t./month
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Specification of Hot Rolled Spring Steel Bar 60Si2CrA with High Quality for Construction:
-Material: 60Si2CrA
-Standard: GB/T 1222-1984
-Type: Spring Steel
Corresponding Steel Grade for Reference:
CHN, GB | JPN, JIS | GER, DIN | GBR, BS |
60Si2CrA | SWOSC-V | 67SiCr5 | 685H57 |
USA, AISI/SAE/ASTM | ISO | ||
9254 | 55SiCr63 |
Chemical Composition:
C | Si | Mn | S |
0.52~0.60 | 1.5~2.00 | 0.60~0.90 | ≤0.035 |
P | Cr | Ni | Cu |
≤0.035 | ≤0.35 | ≤0.35 | ≤0.25 |
Mechanical Properties:
-Tensile Strength σb (MPa): ≥1274(130)
-Yield Strength σs (MPa): ≥1176(120)
-Elongation δ10(%): ≥6
-Percentage reduction of area: ψ (%): ≥30
-Hardness:
1, Hot rolled, ≤302HB
2, Cold drawn + Heat treatment: ≤321HB
-Norm of heat treatment: quenching 870℃±20℃
-Micro structure: Tempered troostite.
Usage/Applications of Hot Rolled Spring Steel Bar 60Si2CrA with High Quality for Construction:
-Compared with Si-Mn spring steel under the similar condition of plasticity, 60Si2CrA have higher tensile strength, yield strength and hardenability.
-60Si2CrA is applied for producing springs with working temperature below 300~500℃. This type of spring can bear high stress, for example, governor spring, turbine steam seal spring, etc…
Packaging & Delivery of Hot Rolled Spring Steel Bar 60Si2CrA with High Quality for Construction:
-Packing Detail:
1, The products can be packed in bundles by steel wires.
2, The weight of each bundle no exceed normally 3 tons
-Marks: there are two types of marks. One is tag mark, for showing customers the specifications of products, company name and logo and other information required by customers. Other one is color marks. They are used to make the products more evident so that it’s easy for customers to distinguish them from other products at destination port.
-Delivery Detail: 30~45 working days after receive buyer’s T.T. or L/C.
Transportation:
-The products can be delivered by bulk vessel or by container. As for container, products with the length of 6m will be loaded in 20’ container, with 9m or 12m, in 40’ container.
-The maximum quantity of loading of container is 25 tons.
-The products are usually transported to the nearest port from the production place.
Payment:
-Invoicing on theoretical weight or actual weight as customer’s request.
-FOB, CFR or CIF.
-Terms of payment: T.T. or L/C at sight.
FAQ:
Q1: How soon can we receive the product after purchase?
A1: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
Q2: What makes stainless steel stainless?
A2: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
Q3: Can stainless steel rust?
A3: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.
Images:
- Q: What are the main applications of special steel in the marine sector?
- Special steel is widely used in the marine sector for various applications. Some of the main applications include the construction of ship hulls, offshore platforms, and marine structures. Special steel's high strength, corrosion resistance, and durability make it suitable for withstanding harsh marine environments. Additionally, special steel is used in propeller shafts, rudders, and other critical components, ensuring efficient and reliable performance of marine vessels.
- Q: How are nickel-based alloys used in the aerospace industry?
- Nickel-based alloys are extensively used in the aerospace industry due to their superior strength, high temperature resistance, and excellent corrosion resistance properties. These alloys are commonly employed in the construction of aircraft engines, turbine blades, and exhaust systems. They help improve engine efficiency, enhance fuel economy, and ensure safe and reliable operations in extreme conditions, making them crucial for the advancement of aerospace technology.
- Q: What are the advantages of using special steel in manufacturing?
- Special steel in manufacturing offers several advantages. Firstly, it provides a higher level of strength and durability compared to regular steel. This is because of the presence of alloying elements, like chromium, nickel, and manganese, which enhance its mechanical properties. As a result, special steel can withstand heavy loads, resist wear and tear, and endure extreme conditions, making it ideal for manufacturing applications requiring strength and longevity. Secondly, special steel exhibits excellent corrosion resistance. The addition of elements like chromium forms a protective oxide layer on the steel's surface, preventing rusting and corrosion when exposed to moisture or harsh environments. This corrosion resistance is crucial in industries such as marine, automotive, and construction, where materials face constant exposure to water, salt, and chemicals. Furthermore, special steel possesses exceptional heat resistance and heat transfer properties. These properties are vital in manufacturing processes involving high temperatures, such as forging, casting, and heat treatment. Special steel retains its strength and structural integrity even at elevated temperatures, enabling the production of components capable of withstanding extreme heat conditions. Another advantage of using special steel in manufacturing is its versatility. It can be easily customized and tailored to specific requirements. Manufacturers can modify it to exhibit various mechanical properties, including hardness, toughness, or flexibility, depending on the application. This flexibility allows for the development of components with precise characteristics, ensuring optimal performance and efficiency. Lastly, special steel proves to be more cost-effective in the long run. Although initial costs may be higher than regular steel, its superior durability and longevity result in reduced maintenance and replacement costs. Additionally, the enhanced properties of special steel can lead to improved energy efficiency and reduced material waste, contributing to overall cost savings in the manufacturing process. In conclusion, the utilization of special steel in manufacturing brings forth benefits such as increased strength and durability, excellent corrosion resistance, superior heat resistance, versatility, and long-term cost-effectiveness. These advantages make it the preferred choice for various industries, guaranteeing the production of high-quality and reliable components.
- Q: What is the importance of heat treatment in special steel?
- The significance of heat treatment in special steel cannot be emphasized enough as it greatly enhances its mechanical properties and overall performance. Special steel, also known as alloy steel, is specifically engineered to possess certain characteristics such as high strength, hardness, wear resistance, and toughness, making it suitable for challenging applications in industries like automotive, aerospace, and tooling. The process of heat treatment involves controlled heating and cooling of the steel in order to modify its microstructure, which subsequently impacts its properties. There are various heat treatment techniques employed, including annealing, tempering, quenching, and hardening, each serving a distinct purpose. One crucial aspect of heat treatment in special steel is its ability to enhance hardness. Through techniques like quenching and hardening, the steel can be transformed into a hardened state, making it significantly stronger and more resistant to abrasion and wear. This is of utmost importance for applications involving heavy loads, impact, and abrasive environments. Furthermore, heat treatment can also enhance the toughness and ductility of special steel. By precisely controlling the cooling rate during the heat treatment process, the microstructure of the steel can be adjusted to achieve a fine-grained structure, thereby improving its ability to withstand sudden impacts or shocks. This is particularly critical in applications where the material needs to absorb energy and resist fractures, such as in structural components or tools. Moreover, heat treatment can also improve the machinability and dimensional stability of special steel. By subjecting the steel to annealing or tempering processes, internal stresses and residual strains can be relieved, resulting in a more stable and easier-to-machine material. This is indispensable in industries where precision and dimensional accuracy are of utmost importance. In conclusion, the significance of heat treatment in special steel cannot be overstated. It is a vital process that enables the optimization of the steel's mechanical properties, ensuring that it fulfills the specific requirements of demanding applications. By skillfully manipulating the microstructure, heat treatment enhances the steel's hardness, toughness, and machinability, making it a versatile and dependable material in various industries.
- Q: How is high-temperature steel used in the production of furnace components?
- High-temperature steel is extensively used in the production of furnace components due to its exceptional heat resistance. It allows furnace components to withstand the extreme temperatures and harsh conditions encountered during the heating process. This steel is specifically designed to maintain its strength, shape, and structural integrity even at elevated temperatures, ensuring the longevity and efficiency of furnace operation.
- Q: What are the limitations of special steel in certain applications?
- The limitations of special steel in certain applications include its high cost compared to regular steel, limited availability, and the need for specialized manufacturing processes. Additionally, special steel may not be suitable for applications requiring high temperature resistance or extreme corrosion resistance, as other materials like stainless steel or alloys might be more suitable.
- Q: How does special steel contribute to the manufacturing of industrial machinery?
- Special steel contributes to the manufacturing of industrial machinery by providing enhanced strength, durability, and resistance to wear and corrosion. It allows for the production of components that can withstand high temperatures, heavy loads, and harsh operating conditions. This robust material ensures the reliability and longevity of industrial machinery, ultimately improving productivity and efficiency in various sectors such as mining, construction, and manufacturing.
- Q: How does special steel contribute to the infrastructure development?
- Special steel contributes to infrastructure development in several ways. Firstly, its high strength and durability make it an ideal material for constructing buildings, bridges, and other critical infrastructure. Special steel can withstand heavy loads, extreme temperatures, and harsh weather conditions, ensuring the longevity and safety of these structures. Secondly, special steel is widely used in the manufacturing of machinery and equipment required for infrastructure development projects. From excavators and cranes to pipelines and power transmission systems, special steel provides the necessary strength, resistance to corrosion, and reliability needed for efficient and sustainable infrastructure development. Furthermore, special steel plays a crucial role in the transportation sector. It is utilized in the construction of railway tracks, road barriers, and vehicles, ensuring safe and reliable transportation networks. Special steel is also used in the energy sector for the production and distribution of electricity, as it is capable of withstanding high temperatures and pressure in power plants and transmission lines. In summary, special steel's strength, durability, and versatility make it an essential material for infrastructure development. Its contribution lies in the construction of robust structures, manufacturing of machinery and equipment, and the development of reliable transportation and energy systems, thereby facilitating the growth and progress of infrastructure worldwide.
- Q: How does special steel perform in high-temperature oxidation with sulfur-containing atmospheres?
- Special steel performs well in high-temperature oxidation with sulfur-containing atmospheres due to its enhanced resistance to sulfur attack. The alloying elements present in special steel, such as chromium, molybdenum, and nickel, provide excellent protection against sulfur-induced corrosion and oxidation. This makes special steel an ideal choice for applications where exposure to high temperatures and sulfur-containing atmospheres is a concern.
- Q: What are the different methods for improving the wear resistance of special steel?
- Enhancing the wear resistance of special steel can be achieved through several methods. These methods encompass: 1. Alloying: Incorporating specific alloying elements, such as chromium, vanadium, or molybdenum, into the steel composition significantly enhances wear resistance. These elements form carbides within the steel matrix, increasing hardness and providing resistance against wear. 2. Heat treatment: Various heat treatment processes, including quenching and tempering, can be employed to enhance wear resistance in special steels. Quenching involves rapid cooling from high temperatures to increase hardness, while tempering reduces internal stresses and improves toughness. 3. Surface coatings: The application of specialized coatings onto the steel surface greatly improves wear resistance. Methods like thermal spray coating, electroplating, and physical vapor deposition create protective layers that resist wear and reduce friction. 4. Shot peening: This mechanical surface treatment involves bombarding the steel surface with small spherical particles at high velocities. The impact induces compressive stress, enhancing the material's resistance to wear and fatigue. 5. Nitriding: Through the diffusion of nitrogen at elevated temperatures, the surface of the steel forms nitrides, significantly increasing surface hardness and wear resistance. 6. Cryogenic treatment: Subjecting the steel to extremely low temperatures induces a structural transformation that enhances wear resistance. This process refines the grain structure and improves the material's toughness. 7. Grain refinement: Employing techniques like severe plastic deformation or specialized casting reduces the grain size of the steel. Smaller grain sizes offer increased hardness and wear resistance by improving dislocation movement and reducing grain-boundary sliding. It is noteworthy that the choice of method for improving wear resistance depends on factors such as specific application, budget, and desired level of improvement. A combination of these methods may also be utilized to achieve optimal wear resistance in special steel.
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Hot Rolled Spring Steel Bar 60Si2CrA with High Quality for Construction
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25000 m.t.
- Supply Capability:
- 200000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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