Steel SCr440 Mild Carbon Steel Special Steel
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Type:
Carbon Steel
Shape:
Steel Round Bar
Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Thickness:
as required
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Length:
as required
Net Weight:
as required
1.round steel
2.ISO9001:2008 certificate
3.Competive price and Best quality
4.On-time delivery
Chemical Composition(GB)%
| C | Si | Mn | Cr | Ni |
| 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | 0.80-1.10 | ≤0.30 |
Heat Treatment
| Item | Temperature ℃ | Hardness |
| Normalizing | 850-870 | 179-229HB |
Characterstics: Which has the best comprehensive mechanical properties
Applications
| 1.Can be used for drawing die and plastic mould | |||
| 2.Can be used for middle and small punch |
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Workshop show：
FAQ:
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, Payment Terms?
30% TT as deposit and 70% before delivery.
Irrevocable L/C at sight.
4, Trading Terms?
EXW, FOB, CIF, FFR, CNF
5, After-sale Service?
We 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 perform in terms of corrosion resistance in acidic environments?
- Special steel, also known as stainless steel, is highly regarded for its exceptional corrosion resistance in various environments, including acidic conditions. It contains a minimum of 10.5% chromium, which forms a protective layer on the surface of the steel known as a passive film. This passive film acts as a barrier, preventing the steel from coming into direct contact with the corrosive elements present in acidic environments. The chromium content in special steel enables it to react with oxygen in the atmosphere, creating a thin and transparent oxide layer. This oxide layer is highly stable and self-healing, making stainless steel highly resistant to corrosion caused by acids. The presence of other alloying elements such as nickel and molybdenum further enhances its resistance to acidic corrosion. In acidic environments, special steel exhibits excellent resistance to both general corrosion and localized corrosion, such as pitting and crevice corrosion. It can withstand a wide range of acid concentrations and temperatures, making it suitable for applications in industries such as chemical processing, pharmaceuticals, and marine environments where exposure to acidic solutions is common. It is important to note that the performance of special steel in acidic environments may vary depending on the specific grade and composition of the steel. Different grades of stainless steel have varying levels of alloying elements, which can influence their corrosion resistance properties. Therefore, it is essential to select the appropriate grade of special steel that matches the specific acidic environment to ensure optimal performance and longevity.
- Q: Can special steel be used for electrical applications?
- Yes, special steel can be used for electrical applications. Special steel alloys, such as stainless steel or electrical-grade steels, are often used in electrical applications due to their excellent electrical conductivity, resistance to corrosion, and high strength properties. These steels are commonly utilized in the manufacturing of electrical components, wiring, transformers, and various electrical equipment.
- Q: How is special steel used in the construction supply chain?
- Special steel is used in the construction supply chain for various purposes, such as reinforcing concrete structures, manufacturing high-strength bolts and fasteners, producing heavy machinery and equipment, and fabricating durable and corrosion-resistant components. Its unique properties, including high strength, toughness, and resistance to wear and tear, make it an essential material in the construction industry, ensuring the safety, reliability, and longevity of structures and infrastructure projects.
- Q: How is special steel used in the medical industry?
- Special steel is used in the medical industry for a variety of applications. It is commonly used in the production of surgical instruments, implants, and medical devices due to its exceptional strength, durability, and resistance to corrosion. Special steel ensures that these instruments and implants can withstand the harsh conditions of medical procedures and maintain their integrity over time, ensuring better patient outcomes.
- Q: How is free-cutting steel used in the manufacturing of screws and bolts?
- Free-cutting steel is commonly used in the manufacturing of screws and bolts due to its excellent machinability. The steel's composition includes additives such as sulfur, lead, or bismuth, which act as lubricants during the machining process, making it easier to cut and shape the material. This results in a faster and more efficient production of screws and bolts, reducing manufacturing time and costs.
- Q: What are the different marine grades of special steel?
- There are several different marine grades of special steel that are specifically designed to withstand the harsh conditions of marine environments. These grades are typically categorized based on their corrosion resistance and mechanical properties. One of the most commonly used marine grades of special steel is 316 stainless steel. It contains a higher percentage of molybdenum and nickel, which enhances its resistance to corrosion from saltwater and other harsh chemicals. This grade is often used for marine hardware, such as bolts, nuts, and screws, as well as for marine structures and equipment. Another marine grade of special steel is 2205 duplex stainless steel. This grade has a higher strength and better corrosion resistance compared to 316 stainless steel. It is often used in marine applications that require high strength and durability, such as propeller shafts, offshore structures, and pressure vessels. There is also 5083 aluminum-magnesium alloy, which is commonly used in marine applications where weight is a concern. This grade of special steel offers excellent corrosion resistance and high strength, making it suitable for boat hulls, superstructures, and other lightweight marine components. Additionally, there are various high-strength low-alloy (HSLA) steels that are used in marine applications. These steels are specifically designed to provide superior strength and toughness while also offering good corrosion resistance. They are often used for shipbuilding, offshore drilling rigs, and other marine structures that require high strength and durability. Overall, the different marine grades of special steel provide a range of options for various marine applications. The choice of grade depends on the specific requirements of the project, including the level of corrosion resistance, strength, and weight considerations.
- Q: What are the physical properties of special steel?
- Special steel refers to a broad category of steel alloys that possess unique physical properties compared to regular steel. These properties can vary depending on the specific type of special steel. However, some common physical properties include high strength, hardness, toughness, and resistance to corrosion and wear. Special steels are often tailored for specific applications, such as automotive components, aerospace structures, or toolmaking, to meet the demanding requirements of these industries.
- Q: How is special steel used in the production of springs?
- Special steel is used in the production of springs due to its unique properties that make it ideal for withstanding high stress and maintaining elasticity. The high strength and excellent fatigue resistance of special steel allow springs to endure repetitive loading without deformation or failure. Additionally, the specific composition of special steel can be tailored to meet desired characteristics such as corrosion resistance, heat resistance, or electrical conductivity, making it highly versatile for various spring applications across industries.
- Q: What industries commonly use special steel?
- Special steel, known as alloy steel as well, finds extensive use in diverse industries owing to its exceptional properties and performance characteristics. Several industries frequently employ special steel, including: 1. Automotive Industry: Special steel is extensively utilized in manufacturing automobile components such as crankshafts, camshafts, gears, and axles. Its exceptional strength, durability, and excellent heat resistance make it suitable for enduring the demanding conditions of the automotive sector. 2. Aerospace Industry: The aerospace industry relies on special steel to manufacture critical components like turbine blades, landing gear, and structural parts. Its ability to withstand high temperatures and maintain structural integrity under extreme conditions is vital for aerospace applications. 3. Oil and Gas Industry: In the oil and gas sector, special steel is crucial for applications like drill bits, valves, pipelines, and offshore platform components. Its corrosion resistance, high strength, and ability to withstand extreme temperatures and pressures make it suitable for these challenging environments. 4. Construction Industry: Special steel serves the construction industry in fabricating structural components, reinforcement bars, and high-rise building frameworks. Its high tensile strength, toughness, and resistance to wear and tear ensure the safety and stability of the structures. 5. Tool and Die Industry: The tool and die sector widely employs special steel in manufacturing cutting tools, molds, dies, and various machine components. Its capability to retain sharpness, resist deformation, and withstand high pressures and temperatures make it indispensable for these applications. 6. Energy Industry: Power generation plants, including nuclear, thermal, and renewable energy facilities, extensively utilize special steel. It is employed in manufacturing turbines, boilers, heat exchangers, and other critical components, thanks to its high temperature and corrosion resistance properties. 7. Medical Industry: In the medical field, special steel plays a crucial role, particularly in surgical instruments and implants. Its biocompatibility, strength, and corrosion resistance make it suitable for applications like joint replacements, dental instruments, and surgical cutting tools. 8. Manufacturing Industry: Various manufacturing processes like machining, forging, and casting widely rely on special steel. It is employed in the production of machine tools, industrial equipment, and heavy machinery components due to its high strength, toughness, and versatility. These examples represent just a fraction of the industries that commonly employ special steel. Its unique properties make it an indispensable material for a wide range of applications where strength, durability, heat resistance, and corrosion resistance are critical factors.
- Q: What are the main factors that determine the cost of special steel?
- The cost of special steel is primarily influenced by various key factors. Firstly, the composition of the steel plays a crucial role in determining its cost. Special steels often contain specific alloying elements that enhance their properties, such as corrosion resistance, strength, or heat resistance. The cost of these alloying elements can vary considerably, and the higher the quantity and complexity of the alloy, the greater the cost of the steel. Secondly, the manufacturing process employed to produce the special steel can significantly impact its cost. Special steels typically require more intricate and controlled manufacturing processes compared to regular steel. These processes may involve additional steps like precise heat treatment, forging, or casting, which can raise the overall cost of the steel. Another essential factor that affects the cost of special steel is the market demand and availability. If a particular type of special steel is in high demand but limited supply, its cost tends to increase. Conversely, if there is an excess of a specific type of special steel, its cost may decrease. Market forces, including global supply and demand dynamics, can have a substantial impact on the cost of special steel. Furthermore, the quality and certification of the special steel can also influence its cost. Higher-quality steel that meets stringent industry standards and certifications often commands a higher price due to the additional testing, quality control, and documentation required. Transportation and logistics costs are also significant factors to consider. If the steel needs to be transported over long distances or requires specialized handling, it can contribute to the overall cost. Lastly, economic factors like currency exchange rates, inflation, and government policies can impact the cost of special steel. Fluctuations in exchange rates can affect the cost of raw materials and manufacturing equipment, which, in turn, influence the final price of the steel. Government policies, such as import and export tariffs or subsidies, can also have an impact on the cost of special steel. In conclusion, the cost of special steel is determined by various factors, including composition, manufacturing process, market demand and availability, quality and certification, transportation and logistics, and economic factors. Understanding these factors is crucial for both buyers and sellers of special steel in order to make informed decisions and ensure competitive pricing.
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Steel SCr440 Mild Carbon Steel Special Steel
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 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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