Alloy Steel ASTM D2 Special Steel Carbon 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:
Alloy Steel
Shape:
Steel Round Bar
Standard:
EN,DIN,BS,GB,JIS,ASTM,AISI,API
Technique:
Hot Rolled,Spring,EFW,Extruded,Forged,ERW,Cold Drawn,Cold Rolled
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
Surface Treatment:
PVDF Coated,Bright,Polished,Chromed Passivation,Dry,Oiled,Color Coated,Copper Coated,Coated,Galvanized,Black
Thickness:
as required
Shape:
Round,Hexagonal,C Channel,Square,U Channel
Length:
as required
Net Weight:
as required
Chemical Composition(%)
| Country | Standard | C | Si | Mn | Cr | Mo | V | S | P | Other |
| China(GB) | Cr12Mo1V1 | 1.40-1.60 | ≤0.60 | ≤0.60 | 11.0-13.0 | 0.70-1.20 | ≤1.10 | ≤0.030 | ≤0.030 | Co≤1.00 |
| USA(ASTM) | D2 | 1.40-1.60 | 0.30-0.50 | 0.30-0.50 | 11.0-13.0 | 0.70-1.20 | 0.8 | ≤0.025 | ≤0.025 | Co:0.60 |
| Germany(DIN) | 1.2379 | 1.50-1.60 | 0.10-0.40 | 0.15-0.45 | 11.5-12.5 | 0.60-0.80 | 0.90-1.10 | ≤0.030 | ≤0.030 | - |
| Japan(JIS) | SKD11 | 1.40-1.60 | ≤0.40 | ≤0.60 | 11.0-13.0 | 0.80-1.20 | 0.20-0.50 | - | - | Ni≤0.50 |
Available Size
| Rolled flat steel | 12-90mm×205-610mm×L |
| Forged flat steel | 100-300mm×400-600mm×L |
Characterstics
| 1.High hardening ability and quench-hardening performance | ||||||
| 2.High abrasive resistance | ||||||
| 3.Good oxidation resistance at elevated temperatures | ||||||
| 4.Less deformation after heat treatment |
Applications: suitable for various complicated cold working dies with high precision and long lifetime,such as punching dies,cold extrusion dies,thread rolling dies,screw plates,cold extrusion dies,and precise measuring devices
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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
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- Q: How does special steel perform in cryogenic impact resistance?
- Special steel is renowned for its exceptional ability to withstand impacts in cryogenic conditions. When exposed to extremely low temperatures, special steel remains structurally intact and highly resistant to fractures. This remarkable performance is attributed to the distinctive composition and manufacturing techniques employed in its production. Special steel contains specific alloying elements that enhance its properties at low temperatures. These alloys prevent the formation of brittle phases within the steel structure, which are prone to cracking upon impact. Furthermore, precise control of cooling rates during the manufacturing process further fortifies special steel's resistance to cryogenic impacts. The outstanding cryogenic impact resistance of special steel makes it an ideal choice for applications in low-temperature environments. It finds extensive use in the construction of liquefied natural gas (LNG) storage tanks, cryogenic pipelines, and aerospace components. In these applications, special steel ensures the safe and reliable operation of equipment, even under the most extreme conditions. Moreover, special steel's high strength and toughness at low temperatures enable it to withstand dynamic loads and absorb energy without failure. This characteristic is particularly crucial in scenarios where impact loads are present, such as offshore structures exposed to harsh marine environments or cryogenic storage facilities experiencing seismic events. In conclusion, special steel exhibits excellent performance in cryogenic impact resistance. Its unique composition and manufacturing process allow it to maintain its structural integrity, resist fractures, and absorb impact loads even under extremely low temperatures. Consequently, special steel is highly regarded and widely sought-after for a diverse range of applications in cryogenic environments.
- Q: What are the different types of special steel coatings?
- There are several different types of special steel coatings that are used to enhance the properties and performance of steel. Some of the most common types include: 1. Galvanized Coatings: This type of coating involves the application of a layer of zinc to the steel surface. Galvanized coatings provide excellent corrosion resistance, making them suitable for outdoor applications and structures exposed to harsh environments. 2. Epoxy Coatings: Epoxy coatings are known for their exceptional durability and chemical resistance. They are often used to protect steel from corrosion, abrasion, and chemical exposure. Epoxy coatings can be applied as single or multi-layer systems, enhancing the steel's lifespan and performance. 3. Powder Coatings: Powder coatings are a type of dry coating that is applied electrostatically and then cured under heat. They offer excellent protection against corrosion, impact, and UV damage. Powder coatings are available in a wide range of colors and finishes, making them a popular choice for aesthetic purposes as well. 4. Thermal Spray Coatings: These coatings involve the application of molten particles onto the steel surface using a thermal spray gun. The most common types of thermal spray coatings for steel are ceramic coatings, which provide enhanced wear resistance, thermal insulation, and corrosion protection. 5. PVD Coatings: Physical Vapor Deposition (PVD) coatings involve the deposition of thin layers of metallic or ceramic materials onto the steel surface through a vaporization process. PVD coatings provide improved hardness, wear resistance, and low friction properties to the steel. 6. Organic Coatings: Organic coatings, such as polyurethane or acrylic coatings, offer protection against corrosion, UV damage, and chemical exposure. These coatings are commonly used in architectural applications, automotive parts, and industrial equipment. 7. Chrome Plating: Chrome plating involves the deposition of a layer of chromium onto the steel surface. This coating provides excellent corrosion resistance, hardness, and a decorative finish. Chrome plating is often used in automotive applications and for decorative purposes. It is essential to select the appropriate type of special steel coating based on the specific requirements of the steel component or structure, including the level of corrosion resistance, durability, aesthetics, and environmental factors.
- Q: How does special steel perform in dynamic loading conditions?
- Thanks to its high strength, toughness, and fatigue resistance, special steel excels in dynamic loading scenarios. When exposed to repeated and fluctuating stresses, special steel can endure the impact and maintain its mechanical properties without any setbacks or distortions. The distinct composition and processing techniques employed in the production of special steel, including the addition of alloying elements and heat treatment, significantly bolster its ability to withstand dynamic loading. Consequently, special steel proves to be an optimal material for applications that involve dynamic forces, such as automotive components, machinery parts, and structural elements utilized in construction. The exceptional performance of special steel under dynamic loading conditions guarantees durability, reliability, and safety across various industries.
- Q: How is special steel used in the defense industry?
- Special steel is used in the defense industry for a wide range of applications, including the manufacturing of military vehicles, aircraft components, and naval vessels. It is known for its exceptional strength, toughness, and resistance to wear and corrosion, making it ideal for producing armor plates, ballistic protection systems, and weapon systems. Additionally, special steel is used in the production of high-precision tools and equipment required for defense purposes.
- Q: How does special steel contribute to the renewable energy conversion efficiency?
- Special steel plays a crucial role in enhancing the renewable energy conversion efficiency by providing durability, strength, and resistance to extreme conditions. It is used in the construction of wind turbines, solar panels, and hydropower systems, ensuring their reliability and longevity. Moreover, special steel alloys facilitate the development of more efficient and lightweight components, reducing energy losses and optimizing the overall performance of renewable energy systems.
- Q: What are the different methods of surface polishing for special steel?
- Different methods can be used to polish special steel surfaces, each offering its own advantages and applications. These methods include mechanical polishing, electrochemical polishing, chemical polishing, electropolishing, and vibratory polishing. Mechanical polishing utilizes abrasive materials to eliminate surface imperfections and create a smooth and reflective surface. This can be done manually or with automated polishing machines. It is effective for removing scratches, dents, and other defects. Industries such as automotive, aerospace, and precision engineering commonly employ this method. Electrochemical polishing, also known as electrolytic polishing, involves using an electrolyte solution and electric current to dissolve and eliminate surface material. It is particularly useful for complex shapes and hard-to-reach areas, providing a high level of surface smoothness. This method is frequently used in industries like medical devices, semiconductors, and jewelry manufacturing. Chemical polishing selectively removes surface material and creates a smooth finish using chemical solutions. It is effective for eliminating oxide layers, stains, and contaminants. This method is often used for stainless steel and other corrosion-resistant alloys. The process involves immersing the steel in a chemical bath and controlling factors like temperature, concentration, and time. Electropolishing combines the benefits of electrochemical and chemical polishing. It applies an electric current to remove surface material while dissolving it in an electrolyte solution. Electropolishing produces a highly smooth, clean, and corrosion-resistant surface finish. It is commonly used in industries such as pharmaceuticals, food processing, and semiconductor manufacturing. Vibratory polishing utilizes vibrating media and a polishing compound to remove surface imperfections. Steel parts are placed in a vibratory tumbler or bowl, where continuous movement causes the media to rub against the parts, resulting in a polished surface. This method is commonly used for small or delicate parts and can be a cost-effective and efficient option. When choosing a surface polishing method for special steel, factors such as desired surface finish, part geometry, material properties, and industry requirements should be considered. Consulting with experts or specialists is important to determine the most suitable method for a specific application.
- Q: What is the role of alloying elements in special steel?
- The role of alloying elements in special steel is to enhance its properties, such as strength, hardness, corrosion resistance, and heat resistance. These elements are added to the steel during the manufacturing process to create alloys with specific characteristics required for various applications. Alloying elements can alter the microstructure of the steel, improving its performance and making it suitable for specialized uses in industries like aerospace, automotive, construction, and oil and gas.
- Q: What are the different methods of hardening special steel?
- There are several methods of hardening special steel, each with its own advantages and applications. 1. Quenching: This is a common method used to harden steel. It involves heating the steel to a critical temperature and then rapidly cooling it by immersing it in a quenching medium such as oil, water, or air. This rapid cooling causes the formation of a martensitic structure, which is harder and more brittle than the original steel. 2. Tempering: After quenching, the steel is often tempered to reduce brittleness and improve toughness. Tempering involves reheating the hardened steel to a specific temperature and holding it at that temperature for a predetermined amount of time. This process helps to reduce internal stresses and improve the overall mechanical properties of the steel. 3. Case hardening: This method is used to increase the hardness of the outer layer of steel while maintaining a tough and ductile core. Case hardening involves introducing carbon or nitrogen into the surface of the steel through processes like carburizing or nitriding. This creates a hard surface layer while maintaining the desired properties in the core. 4. Induction hardening: This technique is commonly used for specific areas of a component that require localized hardening. It involves using an electromagnetic field to heat only a specific region of the steel, followed by rapid quenching. Induction hardening provides precise control over the hardened area while maintaining the desired properties in the rest of the component. 5. Cryogenic treatment: This method involves subjecting the hardened steel to extremely low temperatures, often below -150°C (-238°F). This process helps to further refine the microstructure of the steel, improving its hardness, wear resistance, and dimensional stability. 6. Flame hardening: This method involves heating the surface of the steel using a high-temperature flame and then quenching it. Flame hardening is commonly used for large components or areas that require localized hardening. It is important to choose the appropriate method based on the specific requirements of the steel and the intended application. The selection of the method depends on factors such as the desired hardness, toughness, wear resistance, and dimensional stability of the steel.
- Q: What is the purpose of cold drawing in special steel production?
- Cold drawing is utilized in special steel production with the aim of enhancing the mechanical properties and dimensional accuracy of the steel. This technique involves pulling the steel through a die at room temperature, which leads to a reduction in the cross-sectional area and an increase in the length of the steel. By undergoing this process, the microstructure of the steel is refined, resulting in improved strength, hardness, and toughness. Furthermore, cold drawing has the ability to improve the surface finish and straightness of the steel, ensuring precise dimensions and making it suitable for a wide range of applications that require high-quality steel. In summary, cold drawing plays a vital role in improving the performance and quality of special steel, making it more dependable and efficient in various industrial sectors.
- Q: How does special steel perform in heat treatment applications?
- Special steel is specifically designed to perform well in heat treatment applications. Unlike regular steel, special steel has been alloyed with specific elements to enhance its heat resistance and improve its mechanical properties. When subjected to heat treatment processes such as annealing, quenching, tempering, or hardening, special steel undergoes structural changes that result in improved strength, hardness, toughness, and wear resistance. The performance of special steel in heat treatment applications can be attributed to its unique alloying elements, such as chromium, molybdenum, nickel, and vanadium. These elements form various carbides, nitrides, or intermetallic compounds during heat treatment, which contribute to the overall improvement in the steel's properties. For example, chromium forms chromium carbides that increase hardness and corrosion resistance, while molybdenum and vanadium promote hardenability and wear resistance. Moreover, special steel exhibits excellent dimensional stability during heat treatment. It has a low tendency to warp or distort, ensuring that the final product maintains its desired shape and dimensions. This dimensional stability is particularly crucial for applications that require tight tolerances or intricate designs. Additionally, special steel offers consistent and reliable heat treatment results. Its composition and microstructure are carefully controlled, ensuring that it responds predictably to heat treatment processes. This allows manufacturers to achieve the desired mechanical properties consistently, reducing the risk of inconsistencies or failures in the final product. In summary, special steel performs exceptionally well in heat treatment applications. Its unique alloying elements, dimensional stability, and consistent heat treatment response make it an ideal choice for applications that require improved strength, hardness, toughness, and wear resistance. Whether it is for automotive components, tooling, or industrial machinery, special steel delivers reliable and enhanced performance after undergoing heat treatment processes.
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Alloy Steel ASTM D2 Special Steel Carbon 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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