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 different passivation techniques used for special steel?
- There are several passivation techniques used for special steel, including chemical passivation, electrochemical passivation, and mechanical passivation. Chemical passivation involves treating the steel surface with acids or other chemical solutions to remove impurities and create a passive film that protects against corrosion. Electrochemical passivation utilizes an electrical current to enhance the formation of the protective oxide layer. Mechanical passivation involves processes like abrasive blasting or grinding to remove contaminants and improve the surface finish. These techniques are commonly employed to enhance the corrosion resistance and durability of special steel.
- Q: What are the specific requirements for special steel used in the railway wheel industry?
- The specific requirements for special steel used in the railway wheel industry include high strength and toughness, excellent wear resistance, good heat resistance, and the ability to withstand heavy loads and impact. The steel must also have low levels of impurities to ensure its durability and longevity in the demanding railway environment. Additionally, it should possess good fatigue resistance to withstand repeated stress cycles and meet specific dimensional and mechanical property standards set by the industry.
- Q: How does special steel perform in high-vibration environments?
- Special steel performs well in high-vibration environments due to its exceptional strength, durability, and ability to dampen vibrations. Its unique composition and heat treatment make it highly resistant to fatigue, reducing the risk of fractures or failures caused by constant vibrations. Additionally, special steel's excellent hardness and toughness properties allow it to maintain its structural integrity and performance even under severe vibration conditions.
- Q: What is the significance of tensile strength in special steel?
- Tensile strength is of great significance in special steel because it determines the steel's ability to withstand stretching or pulling forces without breaking or deforming. This property is crucial in various industries, especially in manufacturing and construction, where high tensile strength is required for structural integrity and safety. Special steel with superior tensile strength can withstand heavy loads, resist impacts, and provide durability, making it highly sought after in applications such as building infrastructure, automotive manufacturing, and aerospace engineering.
- Q: How does special steel contribute to the automotive safety?
- Special steel, such as high-strength steel, plays a crucial role in enhancing automotive safety. It is used in various components of vehicles, including the chassis, body structure, and safety systems, to provide superior strength and durability. This type of steel helps improve crashworthiness by absorbing and distributing impact energy, reducing the risk of passenger injury. Additionally, special steel helps optimize the weight-to-strength ratio of vehicles, allowing manufacturers to design lighter yet safer cars that offer improved fuel efficiency and handling.
- Q: What are the requirements for special steel used in corrosive environments?
- To ensure durability and performance in corrosive environments, special steels must possess specific properties. The requirements for these steels can be summarized as follows: 1. Excellent corrosion resistance is the primary requirement. The steels should be able to withstand aggressive substances like acids, alkalis, and salts without showing signs of corrosion. This ensures the longevity of the steel and maintains its performance. 2. High strength is crucial for handling mechanical stresses imposed on the steel in corrosive environments. It is particularly important for applications with heavy loads, pressures, or impacts, as it helps maintain the steel's integrity and structural stability. 3. Resistance to pitting and crevice corrosion is essential. These localized forms of corrosion can occur in the presence of certain aggressive chemicals or stagnant environments. Steels should be resistant to such forms of corrosion to prevent localized damage and potential failure. 4. Resistance to stress corrosion cracking is necessary. This phenomenon occurs when a corrosive environment compromises the material's integrity under tensile stress. Special steels should be resistant to stress corrosion cracking to ensure reliability under applied loads. 5. Good resistance to intergranular corrosion is important. This type of corrosion along grain boundaries weakens the material. Special steels used in corrosive environments should have resistance to intergranular corrosion to maintain structural integrity. 6. Thermal stability is essential for high-temperature corrosive environments. Special steels should exhibit thermal stability to resist degradation and maintain their properties in elevated temperatures. 7. Ease of maintenance is a desirable characteristic. Special steels used in corrosive environments should be relatively easy to clean, resistant to fouling or scaling, and compatible with commonly used cleaning agents or procedures in the industry. It is important to note that the specific requirements for special steels in corrosive environments may vary depending on the application and type of corrosive substances encountered. Therefore, careful consideration of specific needs and consultation with experts in the field is crucial for selecting the most appropriate steel for each corrosive environment.
- Q: What are the different casting grades of special steel?
- Special steel is a classification of steel that is specifically designed to possess certain exceptional properties, making it suitable for specialized applications. Within the realm of special steel, there are several different casting grades available, each with its own unique characteristics and applications. One common casting grade of special steel is known as stainless steel. This grade contains a high percentage of chromium, which gives it excellent corrosion resistance properties. Stainless steel is widely used in applications where resistance to oxidation, acids, and other corrosive elements is critical, such as in the production of kitchen utensils, medical instruments, and chemical processing equipment. Another casting grade of special steel is tool steel. This grade is specifically formulated to exhibit exceptional hardness, wear resistance, and toughness. Tool steel is commonly used in the manufacturing of cutting tools, dies, molds, and other tools that require high strength and durability. High-speed steel is another important casting grade of special steel. This grade is known for its exceptional heat resistance and ability to maintain its hardness even at high temperatures. High-speed steel is widely used in the production of cutting tools such as drills, taps, and milling cutters, where the material is subjected to high temperatures generated by the cutting process. Furthermore, there are casting grades of special steel that are specifically designed for use in extreme temperature environments. These grades, such as heat-resistant steel, are formulated to maintain their strength and integrity even at elevated temperatures. Heat-resistant steel is commonly used in applications such as furnace components, exhaust systems, and gas turbines. In conclusion, the different casting grades of special steel offer a wide range of properties and applications. Stainless steel provides excellent corrosion resistance, tool steel offers exceptional hardness and toughness, high-speed steel is known for its heat resistance, and heat-resistant steel is designed to withstand extreme temperatures. These grades of special steel play a crucial role in various industries where exceptional properties are required for specific applications.
- Q: What is the cost of special steel compared to other materials?
- The cost of special steel can vary depending on various factors such as the type of steel, its composition, and market conditions. Generally, special steel tends to be more expensive than common materials like carbon steel or aluminum due to its unique properties and specialized manufacturing processes. However, it is important to consider that the cost of materials is just one aspect of the overall cost of a project, as factors like durability, performance, and maintenance requirements also play a significant role in the decision-making process.
- Q: What are the different surface treatments used for special steel?
- There are several different surface treatments that can be used for special steel, depending on the specific requirements and desired properties. Some of the commonly used surface treatments for special steel include: 1. Nitriding: This process involves diffusing nitrogen into the surface of the steel, resulting in a hardened layer. Nitriding improves the surface hardness, wear resistance, and fatigue strength of the steel. 2. Carburizing: Carburizing involves introducing carbon into the surface of the steel, forming a hard and wear-resistant layer. This process enhances the surface hardness and improves the steel's resistance to wear and fatigue. 3. Coating: Coating is a popular surface treatment technique where a thin layer of protective material is applied to the steel surface. Coatings can include various materials like zinc, chrome, or ceramic, which provide corrosion resistance, improved aesthetics, and enhanced durability. 4. Shot peening: Shot peening is a mechanical surface treatment technique that involves bombarding the steel surface with small metallic or ceramic particles. This process induces compressive stresses in the material, enhancing its fatigue strength and resistance to cracking. 5. Electroplating: Electroplating is a process where a thin layer of metal is deposited onto the steel surface using an electrical current. This treatment provides improved corrosion resistance and can also enhance the appearance of the steel. 6. Passivation: Passivation involves treating the steel surface with a chemical solution to remove impurities and create a protective oxide layer. This process improves the corrosion resistance and enhances the surface finish of the steel. 7. Anodizing: Anodizing is a surface treatment commonly used for aluminum but can also be applied to special steel. It involves creating an oxide layer on the steel surface through an electrolytic process. Anodizing improves corrosion resistance, provides an aesthetic finish, and can also be used for coloring the steel. These different surface treatments offer various benefits and are chosen based on the specific application requirements, such as corrosion resistance, wear resistance, hardness, aesthetics, or improved mechanical properties.
- Q: How is special steel used in the manufacturing of industrial machinery?
- Special steel is used in the manufacturing of industrial machinery due to its exceptional properties such as high strength, hardness, and resistance to wear and corrosion. It is commonly used to create components like gears, shafts, and bearings, which are critical for the smooth and efficient functioning of machinery. Additionally, special steel can withstand extreme temperatures and pressures, making it suitable for applications in heavy-duty machinery and equipment, ensuring reliability and durability in industrial settings.
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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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