Steel Plate3Cr2Mo/p20 Special Steel Alloy 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:
Alloy Steel
Shape:
Steel Round Bar
Standard:
BS,DIN,JIS,ASTM,AISI,EN,API,GB
Shape:
U Channel,Round,Hexagonal,C Channel,Square
Technique:
Spring,EFW,Extruded,Forged,ERW,Cold Drawn,Cold Rolled,Hot Rolled
Steel Grade:
Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B),Q215,Q195
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
Length:
as required
Net Weight:
as required
Chemical Composition(GB)%
C | Si | Mn | Cr | Mo | S | P |
0.34 | 0.5 | 0.8 | 1.7 | 0.42 | ≤0.030 | ≤0.030 |
Standard
GB | ASTM | DIN |
3Cr2Mo | P20 | 1.2311 |
Available Size
Rolled Plate:20-400mm×610mm×L
Heat Treatment
Item | Temperature℃ | Hardness |
Anneal | 710-740 | ≤220HB |
Quenching | 850-880 | 52-55HRC |
Tempering | 580-630 | 28-35HRC |
Characterstics
1.Good comprehensive mechanical properties | ||||||
2.excellent polishing performance and weld reapiring propery |
Applications: Suitable for large or medium sized and precise plastic moulds
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 effects of different heat treatment processes on special steel?
- Special steel can undergo various heat treatment processes that significantly impact its properties and performance. These processes are designed to modify the steel's microstructure, influencing its hardness, strength, toughness, and other mechanical properties. One widely used heat treatment process is annealing, which entails heating the steel to a specific temperature and gradually cooling it. Annealing serves to alleviate internal stresses, enhance machinability, and improve the steel's ductility. Additionally, it refines the grain structure, promoting uniformity and decreasing the likelihood of cracks or defects. Another heat treatment process is quenching, which involves heating the steel to a high temperature and rapidly cooling it by immersing it in a quenching medium like oil or water. This process results in the formation of a hardened microstructure, augmenting the steel's hardness and resistance to wear. However, quenching can also render the steel brittle, which is why tempering is often performed subsequently. Tempering encompasses reheating the quenched steel to a lower temperature and maintaining it there for a specific duration. This process reduces the brittleness caused by quenching and enhances the steel's toughness and ductility. The resulting microstructure strikes a balance between hardness and toughness, rendering the steel suitable for applications necessitating both strength and impact resistance. Other heat treatment processes, such as normalizing and stress relieving, can also be employed to attain specific properties in special steel. Normalizing entails heating the steel above its critical point and allowing it to cool in still air. This process refines the grain structure and improves the steel's strength and machinability. Conversely, stress relieving aims to eliminate residual stresses from the steel by heating it below its critical point and gradually cooling it. In conclusion, the effects of various heat treatment processes on special steel are manifold. These processes can modify the steel's microstructure, leading to alterations in hardness, strength, toughness, and other mechanical properties. By selecting the appropriate heat treatment process, manufacturers can customize the steel's characteristics to meet specific requirements, ensuring optimal performance and longevity.
- 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, such as stainless steel, is commonly used in the manufacturing of surgical instruments due to its durability, corrosion resistance, and ability to withstand sterilization processes. This type of steel ensures that surgical instruments maintain their integrity and functionality, making them suitable for use in medical procedures.
- Q:What are the specific requirements for special steel used in the automotive piston industry?
- The specific requirements for special steel used in the automotive piston industry are designed to ensure high performance, durability, and efficiency of the pistons. These requirements include: 1. High strength: Special steel used in automotive pistons must possess high tensile strength and hardness to withstand the extreme pressures and temperatures generated during combustion. 2. Heat resistance: The steel must have excellent heat resistance properties to withstand the intense heat generated by the combustion process without deforming or losing strength. 3. Wear resistance: Pistons undergo constant friction and wear against the cylinder walls. Therefore, the special steel used must have good wear resistance to minimize the wear and tear and prolong the lifespan of the piston. 4. Low thermal expansion: The steel should have a low coefficient of thermal expansion to prevent excessive expansion and contraction during temperature variations, ensuring a tight seal between the piston and cylinder walls. 5. Corrosion resistance: Pistons are exposed to various corrosive elements, including combustion by-products and engine oil. Special steel used in piston manufacturing must have good corrosion resistance to prevent premature deterioration and failure. 6. Fatigue resistance: The steel should possess excellent fatigue resistance to withstand the repetitive stress cycles experienced by the piston during engine operation. 7. Machinability: Special steel used in pistons should be easily machinable to achieve precise dimensions and tolerances necessary for optimal performance. 8. Cost-effectiveness: While meeting the above requirements, special steel used in the automotive piston industry should also be cost-effective to ensure profitability for the manufacturers. By meeting these specific requirements, special steel used in the automotive piston industry contributes to the overall performance, reliability, and longevity of the piston, which in turn enhances the efficiency and durability of the entire engine system.
- Q:How does special steel perform in terms of corrosion resistance in marine environments?
- In marine environments, special steel, also known as stainless steel, exhibits exceptional performance in terms of resisting corrosion. This is mainly attributed to the high levels of chromium and nickel present in its alloy composition. The chromium content creates a protective oxide layer on the steel's surface, commonly referred to as the passive layer. Acting as a shield, this layer prevents direct contact between the steel and corrosive elements found in marine environments, such as saltwater. Furthermore, the presence of nickel enhances the corrosion resistance of special steel. Nickel not only improves the stability of the passive layer but also increases its ability to self-repair if it becomes damaged. This property makes special steel highly reliable and long-lasting, especially in marine environments where the steel is exposed to saltwater, high humidity, and fluctuating temperatures that can accelerate corrosion processes. Moreover, special steel offers excellent resistance to two common types of corrosion encountered in marine environments: pitting corrosion and crevice corrosion. Pitting corrosion occurs when localized areas of the steel's surface are attacked, resulting in small pits or holes. Crevice corrosion, on the other hand, takes place in confined spaces such as gaps or joints, where stagnant water or debris can accumulate and expedite corrosion. By effectively resisting these types of corrosion, special steel ensures its durability and integrity in marine applications. Overall, the high chromium and nickel content of special steel contribute to its outstanding corrosion resistance in marine environments. Its ability to form a protective passive layer, resist pitting and crevice corrosion, and self-repair makes it the preferred choice for various marine applications, including shipbuilding, offshore structures, and seawater desalination plants.
- Q:What are the different cutting tools used for machining special steel?
- Some of the different cutting tools used for machining special steel include high-speed steel (HSS) drills, carbide drills and end mills, diamond-coated tools, and solid carbide inserts. These tools are specifically designed to withstand the high cutting forces and temperatures associated with machining special steel, ensuring efficient and precise metal removal.
- Q:What are the different alloying elements used in special steel?
- Some of the different alloying elements used in special steel include chromium, nickel, molybdenum, vanadium, tungsten, and cobalt. These elements are added in varying amounts to enhance the steel's specific properties such as corrosion resistance, strength, hardness, and heat resistance.
- Q:How is special steel produced?
- Special steel is typically produced through a combination of several processes, including melting, refining, casting, and heat treatment. It involves carefully selecting and blending various alloying elements to achieve desired chemical and mechanical properties. These elements are added to molten steel, which is then refined to remove impurities. The refined steel is then cast into various shapes and forms, such as bars, sheets, or tubes. Finally, the steel undergoes heat treatment processes like tempering or quenching to further enhance its strength and other properties.
- Q:What are the challenges in machining special steel?
- Machining special steel poses several challenges, including its high hardness and toughness. Special steels are typically designed to have enhanced properties, such as wear resistance or high strength, which makes them more difficult to machine compared to regular steels. The high cutting forces required and the rapid tool wear during machining are major challenges. Additionally, special steels often have low thermal conductivity, leading to increased heat generation during machining, which further exacerbates tool wear. Therefore, specialized cutting tools, cooling techniques, and machining parameters need to be carefully considered to overcome these challenges and achieve optimal results when machining special steel.
- Q:How is special steel used in the production of valves and fittings?
- The unique properties and characteristics of special steel play a vital role in manufacturing valves and fittings. These components are essential in industries like oil and gas, chemical, petrochemical, and power generation. Also known as alloy steel, special steel offers superior strength, corrosion resistance, and durability compared to regular carbon steel. These qualities make it an ideal material for creating valves and fittings that can withstand high pressure, extreme temperatures, and corrosive environments. In valve production, special steel is commonly used for critical parts like the valve body, bonnet, stem, and more. The valve body houses internal components and seals the flow of fluids or gases. Special steel's high tensile strength and resistance to deformation ensure that the valve body can handle pressure and maintain a tight seal, preventing leaks. Similarly, special steel is used in manufacturing fittings, which connect pipes or other equipment in fluid or gas systems. Fittings made from special steel can endure high pressures, temperature changes, and corrosive media, guaranteeing a reliable and leak-free connection. Special steel alloys, like stainless steel or duplex stainless steel, are often chosen for their excellent corrosion resistance. They can withstand harsh environments, including exposure to chemicals, saltwater, and acidic or alkaline substances. This corrosion resistance is critical in preventing valve and fitting failure, maintaining system integrity, and avoiding costly downtime or accidents. Furthermore, special steel can be customized to meet specific requirements, such as resistance to high or low temperatures or exceptional wear resistance. This allows manufacturers to tailor valves and fittings based on the particular application and operating conditions, ensuring optimal performance and longevity. Overall, the exceptional strength, corrosion resistance, and durability of special steel make it a widely used material in valve and fitting production. These properties enable valves and fittings to perform reliably in demanding environments, ensuring the safe and efficient operation of various industries.
- Q:How does special steel contribute to the construction of infrastructure projects?
- Special steel plays a crucial role in the construction of infrastructure projects by offering enhanced strength, durability, and versatility. This type of steel is specifically designed to meet the unique requirements and challenges posed by infrastructure projects, making it an essential component in their successful completion. One way in which special steel contributes to infrastructure projects is through its superior strength. Infrastructure projects, such as bridges, tunnels, and high-rise buildings, require materials that can withstand heavy loads and harsh environmental conditions. Special steel possesses high tensile and yield strength, allowing it to bear significant loads without deformation or failure. This strength ensures the structural integrity and safety of the infrastructure, offering peace of mind to engineers, architects, and the public. Durability is another crucial aspect that special steel brings to infrastructure projects. These projects are often subjected to various environmental factors, including extreme temperatures, moisture, and corrosive elements. Special steel is designed to resist corrosion, oxidation, and degradation, making it highly durable and capable of withstanding harsh conditions. Its long lifespan reduces maintenance and replacement costs, making it a cost-effective choice for infrastructure projects. Versatility is yet another advantage of special steel in infrastructure construction. It can be customized and fabricated into various shapes and sizes to fit the specific needs of different projects. Whether it is used for beams, columns, or reinforcements, special steel offers flexibility in design and construction. This adaptability enables engineers and architects to create innovative and efficient infrastructure designs, optimizing space and resources. Furthermore, special steel contributes to the sustainability of infrastructure projects. Its recyclability and eco-friendly nature make it an environmentally responsible choice. Steel can be recycled without compromising its properties, reducing the demand for new raw materials and minimizing waste. This sustainable approach aligns with the growing emphasis on environmentally friendly construction practices, making special steel an ideal material for infrastructure projects. In conclusion, special steel significantly contributes to the construction of infrastructure projects through its superior strength, durability, versatility, and sustainability. Its ability to withstand heavy loads, harsh environmental conditions, and provide long-lasting performance ensures the safety and reliability of infrastructure. Moreover, its flexibility in design and construction allows for innovative and efficient project execution. With these advantages, special steel remains an essential component in the development of robust and sustainable infrastructure.
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Steel Plate3Cr2Mo/p20 Special Steel Alloy 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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