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.
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- Q: What are the different applications of tool special steel?
- Tool special steel has various applications across industries such as automotive, aerospace, construction, and manufacturing. It is commonly used for making cutting tools, dies, molds, and components that require high strength, durability, and resistance to wear and corrosion. Additionally, tool special steel finds use in power transmission systems, machine parts, and even surgical instruments. Its versatility and ability to withstand extreme conditions make it a crucial material in many applications where precision and reliability are paramount.
- Q: What are the main applications of special steel in the agricultural sector?
- Special steel has various applications in the agricultural sector, including the manufacturing of agricultural machinery and equipment such as tractors, plows, and harvesters. It is also used for constructing storage silos, irrigation systems, and fencing materials. Additionally, special steel is utilized in the fabrication of cutting tools, blades, and parts for farming implements, ensuring durability and high performance in challenging agricultural environments.
- Q: What are the different surface finishing techniques used for special steel?
- Some of the different surface finishing techniques used for special steel include electroplating, hot-dip galvanizing, powder coating, and passivation.
- Q: How is special steel used in the manufacturing of machinery?
- Special steel is an essential component in the manufacturing of machinery due to its unique properties that make it highly suitable for this purpose. Special steel refers to a category of steel alloys that have been specifically designed and developed to possess exceptional strength, durability, and resistance to wear and tear. In the manufacturing of machinery, special steel is commonly used in various applications. One of the primary uses is in the production of machine components that require high strength and toughness, such as gears, shafts, bearings, and fasteners. These components are subjected to heavy loads, high temperatures, and harsh operating conditions, and therefore, they need to withstand these stresses without failure or deformation. Special steel provides the necessary strength and toughness to ensure the longevity and reliability of these machine parts. Additionally, special steel is also utilized in the manufacturing of cutting tools and dies. Cutting tools, such as drills, milling cutters, and lathe tools, need to have excellent hardness and wear resistance to withstand the forces and abrasion encountered during the machining process. Dies, on the other hand, are used to shape or form materials, and they require high strength and hardness to withstand the repetitive pressure and deformation. Special steel provides the necessary properties to enhance the performance and lifespan of these cutting tools and dies. Furthermore, special steel is often utilized in the construction of machine frames and structural components. The strength and rigidity of special steel make it ideal for supporting heavy loads and maintaining the overall stability of the machinery. By using special steel in the construction of machine frames, manufacturers can ensure the structural integrity and durability of the machinery, which is crucial for safe and efficient operation. Overall, special steel plays a vital role in the manufacturing of machinery by providing the strength, durability, and wear resistance necessary for critical machine components, cutting tools, and structural elements. Its unique properties make it indispensable in the production of high-performance machinery that can withstand the demanding conditions of various industries.
- Q: What are the requirements for special steel used in military applications?
- In order to ensure optimal performance and durability in the field, special steel utilized in military applications must meet specific criteria. These criteria encompass: 1. Superior strength: Military applications often entail extreme conditions, including heavy loads, impacts, and shocks. To withstand these forces without deformation or failure, special steel employed in these applications must possess high strength. 2. Exceptional toughness: The steel should exhibit remarkable toughness to resist cracking or fracturing when subjected to high-stress situations. This is crucial for safeguarding the well-being of military personnel and equipment. 3. Resistance to corrosion: Military operations can occur in diverse environments, such as marine or coastal areas, where exposure to moisture, saltwater, and other corrosive elements is prevalent. To maintain its structural integrity over time, special steel employed in military applications must possess good corrosion resistance. 4. Heat resistance: Military equipment frequently encounters elevated temperatures due to friction, combustion, or exposure to explosives. The steel used must possess good heat resistance to prevent deformation or loss of strength under such conditions. 5. Wear resistance: Military equipment undergoes frequent use, abrasive contact, and potential impacts with foreign objects. Therefore, special steel employed in these applications must exhibit excellent wear resistance to minimize damage and extend the lifespan of the equipment. 6. Machinability: Special steel utilized in military applications should be easily machinable and processable into various shapes and sizes. This ensures that it can be tailored to specific requirements and seamlessly integrated into different military systems. 7. Cost-effectiveness: While meeting all the aforementioned requirements, special steel utilized in military applications should also be cost-effective. It must strike a balance between performance and cost to ensure efficient resource utilization. By fulfilling these requirements, special steel employed in military applications can deliver the necessary strength, durability, and reliability required for military operations, thereby ensuring the safety and effectiveness of military personnel and equipment.
- Q: What are the different methods for controlling the grain size in special steel?
- There are several methods for controlling the grain size in special steel. 1. Heat treatment: One common method is heat treatment, which involves subjecting the steel to specific temperatures and cooling rates. This process can be used to refine the grain size by controlling the rate of nucleation and growth of new grains. For example, slow cooling can promote the formation of larger grains, while rapid cooling can result in smaller grain sizes. 2. Alloying elements: Adding certain alloying elements to the steel can also influence the grain size. For instance, elements like vanadium, niobium, and titanium can form carbides, which act as nucleation sites, leading to finer grain sizes. On the other hand, elements like aluminum and silicon can promote the formation of larger grains. 3. Mechanical deformation: Applying mechanical deformation to the steel, such as through rolling or forging, can also affect the grain size. These processes cause grain refinement by breaking up larger grains into smaller ones. Additionally, severe plastic deformation techniques like equal-channel angular pressing can produce ultrafine grains in special steel. 4. Grain growth inhibitors: Certain elements can act as grain growth inhibitors, preventing the coarsening of grain size during heat treatment. Examples of such elements include boron and zirconium. By controlling the concentration of these inhibitors, it is possible to inhibit grain growth and maintain a desired grain size. 5. Controlled cooling: Controlling the cooling rate during solidification and heat treatment is another method for controlling grain size. By carefully controlling the cooling rate, it is possible to achieve a specific grain size or a desired distribution of grain sizes. It is important to note that the choice of method for controlling grain size in special steel depends on the specific application and desired properties of the steel. Different methods may be employed in combination to achieve the desired grain size and optimize the performance of the steel for its intended use.
- Q: What are the common challenges in heat treatment of special steel?
- Some common challenges in the heat treatment of special steel include achieving uniform heating and cooling rates, managing distortion and warping, controlling grain growth, and avoiding the formation of undesirable phases or microstructures. Additionally, maintaining tight temperature tolerances, ensuring proper heat transfer within the material, and minimizing the risk of cracking or other forms of damage are also key challenges in the heat treatment process.
- Q: What are the different mechanical defects in special steel?
- There are several mechanical defects that can occur in special steel, which can compromise its overall strength and performance. Some of the most common defects include: 1. Inclusions: Inclusions are foreign particles or impurities that are present in the steel. These can include oxides, sulfides, or other non-metallic materials. Inclusions can weaken the steel and reduce its ductility, making it more prone to cracking or failure. 2. Segregation: Segregation refers to the uneven distribution of alloying elements within the steel. This can lead to variations in hardness, strength, and other mechanical properties across the material. Segregation can create localized areas of weakness, increasing the likelihood of failure under stress. 3. Cracks: Cracks can occur in special steel due to a variety of factors, such as improper cooling, excessive heat, or high levels of stress. Cracks can significantly reduce the structural integrity of the steel and may propagate over time, leading to catastrophic failure. 4. Laminations: Laminations are thin layers or sheets of material that are formed during the manufacturing process. They can occur due to improper rolling or forging, or the presence of inclusions. Laminations can weaken the steel and lead to premature failure under load. 5. Decarburization: Decarburization is the loss of carbon from the surface of the steel, typically due to exposure to high temperatures or oxidation. This can result in a layer of softer, lower carbon steel on the surface, reducing the overall hardness and strength of the material. 6. Grain growth: Grain growth occurs when the individual crystals within the steel (grains) grow larger over time. This can happen due to high temperatures, prolonged exposure to stress, or improper heat treatment. Grain growth can reduce the strength and toughness of the steel, making it more prone to deformation or fracture. It is important to note that these mechanical defects can vary in severity and are often influenced by factors such as the manufacturing process, quality control measures, and the specific composition of the special steel. Regular inspection, testing, and adherence to proper handling and processing techniques are essential to minimize these defects and ensure the desired mechanical properties in special steel.
- Q: What is the role of research and development in advancing special steel technology?
- The role of research and development in advancing special steel technology is crucial. Through continuous research and development efforts, new and improved manufacturing processes, alloys, and applications for special steel can be discovered and developed. This leads to advancements in the properties and performance of special steel, making it more durable, resistant to wear and corrosion, and capable of meeting the evolving needs of industries such as automotive, aerospace, and energy. Additionally, research and development help in optimizing production techniques, reducing costs, and promoting sustainability in the special steel industry. Overall, research and development play a vital role in pushing the boundaries of special steel technology, enabling innovation and driving progress in various sectors.
- Q: What are the applications of special steel in the agriculture sector?
- Special steel has numerous applications in the agriculture sector. It is used in the manufacturing of machinery and equipment such as plows, cultivators, and harvesters, due to its high strength and durability. Special steel is also utilized in the production of storage tanks and silos, providing protection against corrosion and ensuring the safety of agricultural products. Additionally, it is employed in the fabrication of irrigation systems, fencing, and animal enclosures, offering longevity and resistance to wear and tear. Overall, special steel plays a crucial role in improving productivity and efficiency in various agricultural operations.
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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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