Special Steel AISI 4140 Round Bar 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:
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
Chemical Composition(%)
| C | Si | Mn | Cr | Mo | Ni | P | S |
| 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.20 | 0.15-0.25 | ≤0.030 | ≤0.030 | ≤0.030 |
Standard
| GB | AISI | DIN | JIS | ISO |
| 42CrMo | 4140 | 42CrMo4 | SCM440 | 42CrMo4 |
Available Size
| Rolled round bar | φ20-120mm × L |
| Forged round bar | φ130-195mm × L |
Heat Treatment
| Item | Temperature℃ | Hardness |
| quenching | 840-880 | HRC32-34 |
| tempering | 580 | |
| quenching | 900 | HRC54-60 |
| tempering | 150-180 |
Characterstics
| The steel with high strength and toughness, hardenability is better also | |||||||
| After conditioning treatment quenching deformation of small | |||||||
| high fatigue limit and repeated impact resistance |
Applications: The steel is suitable for manufacturing requires a certain strength and toughness of large and medium-sized plastic mold
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 main applications of special steel in the semiconductor industry?
- Special steel is widely used in the semiconductor industry for various applications. One of the main applications is in the manufacturing of wafer handling components such as vacuum chucks, reticle stages, and load ports. Special steel's high strength, corrosion resistance, and precision machining capabilities make it ideal for these critical components that require excellent dimensional stability and reliability. Additionally, special steel is also used in the construction of cleanroom equipment, such as gas cabinets, exhaust systems, and process tools, where its resistance to chemical and thermal stress is highly valued. Overall, special steel plays a crucial role in ensuring the efficiency, accuracy, and safety of semiconductor manufacturing processes.
- Q:How is special steel used in the production of automotive parts?
- Special steel is commonly used in the production of automotive parts due to its exceptional strength, durability, and resistance to wear and corrosion. It is utilized in various components such as engine components, transmission gears, axles, suspension systems, and chassis parts. The use of special steel ensures that automotive parts can withstand extreme conditions and heavy loads, thereby enhancing the overall performance and safety of vehicles.
- Q:How does special steel contribute to the aerospace safety?
- Special steel contributes to aerospace safety in several ways. Firstly, special steel is used in the construction of aircraft components such as landing gear, engine parts, and structural supports. These components need to withstand extreme stress, high temperatures, and corrosive environments, and special steel provides the necessary strength, durability, and resistance to ensure the safety and reliability of the aircraft. Secondly, special steel is utilized in the manufacturing of aerospace tools and equipment. These tools are essential for maintenance, repairs, and inspections of aircraft systems. The high strength and toughness of special steel ensure that these tools can withstand heavy use, enabling efficient and accurate maintenance procedures, ultimately contributing to the overall safety of aerospace operations. Furthermore, special steel is also used in the production of safety-critical fasteners and connectors in aerospace applications. These fasteners play a crucial role in holding aircraft components together, and their reliability is paramount for the safe operation of the aircraft. Special steel's excellent mechanical properties, including high tensile strength and resistance to fatigue, ensure the integrity and security of these fasteners, reducing the risk of component failure and enhancing aerospace safety. Overall, the use of special steel in aerospace applications significantly contributes to safety by providing the necessary strength, durability, and reliability required in critical aircraft components, tools, and fasteners.
- Q:How does special steel perform under high-temperature conditions?
- Special steel is specifically designed to perform well under high-temperature conditions. It exhibits excellent resistance to thermal expansion, oxidation, and creep, allowing it to maintain its structural integrity and mechanical properties when exposed to elevated temperatures. The unique composition of special steel, which often includes elements such as chromium, nickel, and molybdenum, contributes to its high-temperature performance. These alloying elements form a protective oxide layer on the surface of the steel, known as passivation, which acts as a barrier against corrosion and further enhances its resistance to high temperatures. Additionally, the microstructure of special steel is carefully controlled through various heat treatment processes, such as quenching and tempering, to achieve optimal toughness and strength even at elevated temperatures. Overall, special steel demonstrates exceptional performance and reliability in high-temperature environments, making it a preferred choice for applications such as power generation, aerospace, and petrochemical industries.
- Q:How does special steel contribute to the energy equipment industry?
- Special steel plays a crucial role in the energy equipment industry by providing the necessary strength, durability, and resistance to extreme conditions. The energy equipment industry encompasses various sectors such as oil and gas, renewable energy, power generation, and transmission, all of which rely heavily on special steel for their infrastructure and machinery. In the oil and gas sector, special steel is used in the construction of pipelines, drilling equipment, and storage tanks. The unique properties of special steel, such as high tensile strength, corrosion resistance, and the ability to withstand high pressure and temperature, make it an ideal material for these applications. Special steel also ensures the safety and reliability of oil and gas operations, as it can withstand harsh environments, including corrosive substances and extreme weather conditions. In the renewable energy sector, special steel is used in the manufacturing of wind turbines, solar panels, and hydroelectric power systems. These energy sources require strong and lightweight materials that can withstand constant exposure to nature's elements. Special steel alloys, such as high-strength low-alloy (HSLA) steel and stainless steel, are commonly used to construct the infrastructure of renewable energy systems, ensuring their longevity and efficiency. Furthermore, special steel is essential in power generation and transmission equipment. It is utilized in the manufacturing of gas turbines, steam turbines, and generators. Special steel alloys can endure the high temperatures and pressures generated during power generation processes, ensuring the efficiency and reliability of energy production. Additionally, special steel is used in the transmission infrastructure, including transmission towers and power cables, to support the efficient and safe transfer of electricity over long distances. Overall, special steel contributes significantly to the energy equipment industry by providing the necessary strength, durability, and resistance to extreme conditions. It enables the construction of reliable and efficient infrastructure, ensuring the smooth operation of energy systems, whether in oil and gas, renewable energy, or power generation and transmission.
- Q:How does stainless steel contribute to the automotive industry?
- Stainless steel contributes to the automotive industry by providing durability, corrosion resistance, and aesthetic appeal to various parts and components. It is commonly used in exhaust systems, engine components, body panels, and trim pieces, ensuring longevity and maintaining the integrity of vehicles even in harsh conditions.
- Q:How does special steel contribute to reducing material waste?
- Special steel contributes to reducing material waste through its exceptional properties and capabilities. Firstly, special steel is highly durable and has a longer lifespan compared to other materials, allowing for extended use before replacement or repair is needed. This reduces the amount of waste generated from frequent replacements. Additionally, special steel can be recycled and reused multiple times without losing its quality or performance. This promotes a circular economy by minimizing the need for raw materials extraction and reducing the overall waste generated from manufacturing processes. Furthermore, special steel's versatility and strength enable the creation of lighter and more efficient products, resulting in reduced material consumption. By utilizing special steel in various industries, we can significantly contribute to the reduction of material waste and promote a more sustainable approach to resource management.
- Q:How does special steel contribute to the chemical processing industry?
- Special steel plays a crucial role in the chemical processing industry by offering a wide range of benefits that contribute to the overall efficiency and safety of various processes. Firstly, special steel is highly resistant to corrosion, which is an essential characteristic when dealing with corrosive chemicals. This resistance ensures that equipment and pipelines made from special steel can withstand the harsh chemical environments without deteriorating, leading to increased longevity and reduced maintenance costs. Furthermore, special steel provides excellent strength and durability, allowing it to withstand high temperatures and pressures commonly encountered in chemical processing. This strength ensures that equipment such as reactors, heat exchangers, and vessels can operate effectively under demanding conditions, minimizing the risk of failures or accidents. Special steel also offers excellent thermal conductivity, which is highly advantageous in heat transfer applications. This property allows for efficient heat exchange between different fluids, enhancing the overall energy efficiency of chemical processes. By facilitating the effective transfer of heat, special steel aids in optimizing the performance of equipment like condensers, boilers, and evaporators. In addition, special steel is often used in the construction of storage tanks and pipelines for the transportation and distribution of chemicals. Its high resistance to mechanical stress and impact makes it ideal for ensuring the safe containment and transportation of hazardous substances, reducing the risk of leaks or spills that could have serious environmental and safety consequences. Overall, the use of special steel in the chemical processing industry greatly contributes to the reliability, efficiency, and safety of various processes. Its corrosion resistance, strength, thermal conductivity, and durability make it an indispensable material for equipment and infrastructure, ensuring the smooth and secure operation of chemical processing plants.
- Q:What are the different electrical grades of special steel?
- There exist various specialized types of steel that possess exceptional electrical properties. These types include: 1. Silicon Electrical Steel: This particular grade of steel contains a significant silicon content, typically ranging from 3% to 4%. The inclusion of silicon aids in minimizing eddy current losses and enhancing the steel's magnetic properties. Consequently, it becomes an ideal choice for utilization in electrical motors and transformers. 2. Stainless Electrical Steel: This specialized steel grade is crafted from stainless steel alloys, renowned for their remarkable resistance to corrosion. Additionally, stainless electrical steel exhibits low electrical resistivity and high thermal conductivity, making it well-suited for electrical connectors, terminals, and other components that necessitate excellent electrical conductivity and resistance to oxidation. 3. Tool Steel for Electrical Purposes: Tool steels are commonly employed in the production of various tools and dies. Certain tool steels are specifically engineered to possess enhanced electrical properties, including heightened electrical conductivity and resistance to heat. These grades are frequently utilized in the fabrication of electrical contacts, switches, and other electrical components that require exceptional resistance to wear and superior electrical performance. 4. Copper-Clad Steel for Electrical Applications: This specialized steel grade is created by bonding a layer of copper to a steel core. The copper layer offers outstanding electrical conductivity, while the steel core provides durability and strength. Electrical copper-clad steel is commonly employed in applications where high electrical conductivity is imperative, such as power transmission lines and grounding systems. In conclusion, the diverse electrical grades of specialized steel offer a variety of electrical properties to meet the specific requirements of various electrical applications. These grades are meticulously engineered to deliver optimal electrical performance, durability, and resistance to corrosion and wear.
- Q:How does special steel contribute to the pharmaceutical aftermarket industry?
- Special steel plays a significant role in the pharmaceutical aftermarket industry by providing high-quality materials for manufacturing critical components such as machinery, equipment, and tools. The unique properties of special steel, such as corrosion resistance, strength, and durability, ensure the production of efficient and safe pharmaceutical products. Additionally, special steel's ability to withstand extreme temperatures and pressures enables the creation of advanced processing systems, leading to improved efficiency and productivity in pharmaceutical manufacturing.
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Special Steel AISI 4140 Round Bar 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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