Wholesale AISI 420 Medium Carbon 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
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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
Specifications
1.ISO9001:2008 certificate
2.Competive price and Best quality
3.On-time delivery
Chemical Composition(GB)%
| C | Si | Mn | Cr | P | S |
| 0.4 | 0.5 | 0.7 | 13 | ≤0.030 | ≤0.030 |
Standard
| GB | ASTM | DIN | JIS |
| 4Cr13 | 4.2 | 1.2083 | 420J2 |
Available Size
| Rolled plate | 12-120mm*720mm*6000mm | ||
| Module | 130-400mm*1000mm*6000mm | ||
Heat Treatment
| Processing | Temperature ℃ | Hardness |
| Anneal | 750-800 | ≤235HB |
| Quenching | 1050-1100 | ≥50HRC |
| Tempering | 200-300 | ≥50HRC |
Characterstics
| 1.High corrosion resistance and mirror performance | |||||
| 2.Higher strength and abrasion resistance |
Applications:Suitable for precise dies with super mirror performance and abrasion resistance,camera components,optical lens 420J2 STEEL
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
6, 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: What are the different methods of surface texturing for special steel?
- Some of the different methods of surface texturing for special steel include shot blasting, etching, electrochemical etching, laser texturing, and milling. These methods are used to create various patterns, textures, or finishes on the surface of the steel, which can enhance its appearance, improve its performance, or provide better adhesion for coatings.
- Q: What are the different surface finishing methods used for special steel?
- There are several surface finishing methods used for special steel, each serving a specific purpose and achieving different results. Some of the common surface finishing methods for special steel include: 1. Grinding: Grinding is the process of using abrasive materials to remove excess material from the surface of the steel. It is typically used to achieve a smooth and polished finish, as well as to remove any imperfections or roughness. 2. Polishing: Polishing involves using polishing compounds and abrasive materials to create a smooth and shiny surface on the steel. This method is often used to enhance the aesthetic appeal of the steel and improve its corrosion resistance. 3. Shot blasting: Shot blasting is a technique that involves propelling small metal or mineral particles at high speeds onto the surface of the steel. This process helps to remove any contaminants, scale, or rust from the surface, resulting in a clean and uniform finish. 4. Electroplating: Electroplating is a process where a thin layer of metal is deposited onto the surface of the steel through an electrochemical reaction. This method is commonly used to enhance the appearance of the steel, improve its corrosion resistance, and provide a decorative or protective coating. 5. Passivation: Passivation is a chemical process that involves treating the surface of the steel with an acid solution to remove any impurities and create a passive, corrosion-resistant layer. This method is often used to improve the corrosion resistance of stainless steel and other alloys. 6. Coating: Coating is the process of applying a protective layer or coating onto the surface of the steel. This can include paints, lacquers, enamels, or other types of protective coatings that help to prevent corrosion, improve durability, or provide a specific aesthetic finish. It is important to note that the choice of surface finishing method for special steel depends on the desired outcome, such as aesthetics, corrosion resistance, or functionality. Additionally, the specific characteristics of the steel, such as its composition, hardness, and intended application, also play a significant role in determining the most suitable surface finishing method.
- Q: How does special steel contribute to the automotive racing industry?
- Special steel contributes to the automotive racing industry by providing high-strength and lightweight materials that enhance the performance and safety of race cars. These steel alloys are used in various components, such as engine parts, chassis, and suspension systems, allowing for improved speed, maneuverability, and durability. Additionally, special steel's exceptional heat resistance and ability to withstand extreme conditions make it vital for engines that generate immense power and operate at high temperatures. Overall, special steel plays a crucial role in pushing the boundaries of automotive racing technology and enabling teams to achieve optimal performance on the track.
- Q: How does special steel perform in defense applications?
- Special steel performs exceptionally well in defense applications due to its high strength, durability, and resistance to extreme conditions. It offers superior protection against ballistic threats, corrosion, and impact, making it ideal for armor plating, military vehicles, and personal protective equipment. Additionally, special steel's ability to withstand high temperatures and maintain structural integrity ensures reliable performance in critical defense systems such as missiles, submarines, and aircraft carriers. Overall, special steel plays a crucial role in enhancing the safety and effectiveness of defense applications.
- Q: What are the different manufacturing processes used for special steel?
- Special steel can be manufactured using various processes, depending on the desired properties and requirements for the final product. Some commonly used manufacturing processes for special steel include: 1. Electric Arc Furnace (EAF): Stainless steel, tool steel, and alloy steel can be produced by melting scrap metal in an electric arc furnace. This involves passing high electrical current through the electrodes to melt the metal. 2. Basic Oxygen Furnace (BOF): Carbon and low-alloy steels are commonly produced using the BOF process. It involves combining molten iron from a blast furnace with scrap metal and blowing oxygen through the mixture to remove impurities. 3. Vacuum Degassing: To eliminate impurities like hydrogen, nitrogen, and sulfur from steel, a vacuum environment is used in the vacuum degassing process. This is often employed to produce high-quality and ultra-clean special steels. 4. Continuous Casting: Molten steel is poured into a water-cooled mold in the continuous casting process, allowing it to solidify into a continuous strand. This helps in producing steel with consistent shape, size, and internal structure, and is commonly used for semi-finished products like billets, slabs, and blooms. 5. Powder Metallurgy: Special steels with specific properties, such as high strength, wear resistance, or corrosion resistance, can be produced using powder metallurgy. This process involves compacting metal powders into the desired shape and then sintering them at high temperatures to bond the particles together. 6. Heat Treatment: Modifying the microstructure and properties of special steels can be achieved through heat treatment processes like annealing, quenching, and tempering. These processes involve heating the steel to specific temperatures and then cooling it in a controlled manner to achieve desired hardness, toughness, and other mechanical properties. Each of these manufacturing processes has its own advantages and limitations, and the choice of process depends on factors such as the required type of steel, desired properties, and cost-effectiveness for a specific application.
- Q: What are the main applications of special steel in the mining processing?
- Special steel is widely used in mining processing due to its exceptional strength, durability, and resistance to harsh environments. The main applications of special steel in mining processing include the manufacturing of mining equipment such as drills, crushers, and grinding mills. Additionally, special steel is used to construct structural components for mine shafts, conveyors, and ore processing plants. Its high tensile strength and corrosion resistance make it ideal for withstanding the demanding conditions encountered in mining operations.
- Q: Can special steel be used in the production of surgical instruments?
- Yes, special steel can be used in the production of surgical instruments. Special steel alloys, such as stainless steel, are commonly used due to their desirable properties like corrosion resistance, strength, and their ability to be easily sterilized. These characteristics make special steel an ideal material for surgical instruments that require high precision and durability.
- Q: Can special steel be welded?
- Yes, special steel can be welded.
- Q: How does special steel contribute to the manufacturing of cutting blades for industrial machines?
- Special steel plays a crucial role in the manufacturing of cutting blades for industrial machines due to its unique properties and composition. Firstly, special steel exhibits exceptional hardness, which is essential for cutting blades to withstand the high pressure and abrasion that occurs during industrial cutting operations. This hardness ensures that the blades remain sharp for extended periods, minimizing the need for frequent replacement and reducing downtime in manufacturing processes. Moreover, special steel offers remarkable toughness, allowing cutting blades to endure heavy loads and resist chipping or breaking. This is particularly important in industrial settings where cutting blades are subjected to intense forces and must maintain their integrity to ensure efficient and reliable cutting operations. Additionally, special steel has excellent resistance to corrosion and wear, making it an ideal material for cutting blades used in harsh environments, such as those involving exposure to chemicals, extreme temperatures, or abrasive materials. This corrosion resistance prolongs the lifespan of the cutting blades, reducing maintenance costs and enhancing overall productivity. Furthermore, special steel can be customized to meet specific requirements, allowing the manufacturing of cutting blades with precise dimensions, shapes, and cutting angles. This customization ensures that the blades are tailored to the unique needs of different industrial machines and applications, optimizing cutting performance and efficiency. In summary, special steel contributes significantly to the manufacturing of cutting blades for industrial machines by providing excellent hardness, toughness, corrosion resistance, and customization options. These properties enhance the durability, reliability, and efficiency of cutting operations, ultimately leading to improved productivity and reduced costs in industrial manufacturing processes.
- Q: What are the different high-pressure grades of special steel?
- There exist several distinct varieties of special steel that are designed to withstand high pressures, each possessing its own unique characteristics and uses. Some frequently employed high-pressure grades of special steel encompass the following: 1. 4130 steel: This particular grade of steel is renowned for its exceptional strength, toughness, and resistance to heat. It finds considerable application in the fabrication of high-pressure tubing and components for the oil and gas industry. 2. 4340 steel: Distinguished by its extraordinary strength and toughness, this grade of steel is commonly utilized in the production of critical components like high-pressure valves, gears, and other crucial parts in industries such as aerospace, defense, and automotive. 3. 316 stainless steel: Highly resistant to corrosion and boasting excellent high-temperature properties, this stainless steel grade is frequently employed in high-pressure scenarios like pipelines, heat exchangers, and pressure vessels within the chemical and petrochemical industries. 4. 17-4 PH stainless steel: Offering a combination of high strength, superb corrosion resistance, and good toughness, this stainless steel grade often finds application in high-pressure pump components, turbine blades, and other vital parts within industries like power generation and aerospace. 5. F22 steel: Classified as a low-alloy steel with remarkable high-temperature strength and exceptional resistance to creep, this grade of steel is commonly used in high-pressure and high-temperature environments such as boilers, pressure vessels, and piping systems found in power plants and refineries. The aforementioned examples represent just a small selection of the available high-pressure grades of special steel. The appropriate grade choice is contingent upon the specific requirements of the application, encompassing factors such as pressure, temperature, corrosion resistance, and mechanical properties.
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Wholesale AISI 420 Medium Carbon 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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