Special Steel Round Bar AISI 4140 Alloy Steel
- Ref Price:
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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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Item specifice
Special Steel Round Bar AISI 4140 Alloy Steel
1.4140/1.7225/42CrMo4/SCM440/EN19
2.good price and fast delivery time
3.large stocks
Equivalent grades
GB | DIN | AISI | JIS |
42CrMo | 1.7225 | 4140 | SCM440 |
Chemical Composition
C | Si | Mn | Cr | Mo | P | S |
0.38-0.43 | 0.40max | 0.60-0.90 | 0.90-1.20 | 0.15-0.30 | ≤0.035 | ≤0.035 |
Available size
Round steel bar 10-800mm | |||||||||
Flat steel bar 25-400mm*200-800mm |
Surface condition
Black surface/ Grinded/ Machined |
Hardness
Annealed HBS 217 max |
Characteristics
4140 Alloy Steel/SAE 4140 Steel Price is engineering steel supplied in quenched and tempered conditions. Very good machinability. High toughness. High creep strength. Repeated impact resistant capability. |
Applications
4140 Alloy Steel/SAE 4140 Steel Price is use to producecomponents with high requirements on toughness, e.g. gear wheels, pinions, connecting rods, parts for mechanical engineering . |
Heat treatment
| Forging | Heat to 1150°C. Hold until uniform. Minimum forging temperature 850°C.Cool slowly in ashes or sand etc. | ||||||||
| Annealing | Heat to 830°C-850°C.Cool in furnace. | ||||||||
| Normalising | Heat to 870°C-900°C.Cool in still air. | ||||||||
| Stress Relieving | Annealed: Heat to 600°C-650°C.Hardened: Heat to 500°C-550°C.Cool in still air. | ||||||||
| Hardening | Heat to 830°C-880°C. Quench in oil or polymer. | ||||||||
| Tempering | Heat to 450°C-700°C cool in still air. NB. Tempering within the range 200°C-420°C will result in temper brittleness and should be avoided. | ||||||||
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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 contribute to the thermal conductivity of products?
- Special steel contributes to the thermal conductivity of products by having a higher thermal conductivity compared to other materials. This means that when special steel is used in the production of products, it allows for efficient transfer of heat, resulting in better heat distribution and dissipation.
- Q:Can special steel be used in the production of gearboxes?
- Yes, special steel can be used in the production of gearboxes. Special steel, such as alloy steel or tool steel, offers higher strength, durability, and wear resistance, making it suitable for use in gearboxes that require heavy-duty performance and efficient power transmission.
- Q:What are the main manufacturing processes for special steel?
- The main manufacturing processes for special steel typically include melting, refining, casting, hot rolling, heat treatment, and finishing.
- Q:What are the applications of high-strength low-alloy (HSLA) steel?
- High-strength low-alloy (HSLA) steel finds applications in various industries such as automotive, construction, and manufacturing. It is commonly used in the production of heavy machinery, bridges, pipelines, and offshore structures due to its excellent strength, toughness, and corrosion resistance. Additionally, HSLA steel is favored in the automotive industry for manufacturing lightweight yet durable components, enhancing fuel efficiency and overall vehicle performance.
- Q:What are the different methods of surface honing for special steel?
- There are several methods of surface honing for special steel, including abrasive honing, superabrasive honing, and diamond honing. Abrasive honing involves using a honing stone with abrasive particles to remove material from the surface of the steel. Superabrasive honing uses a honing tool with diamond or cubic boron nitride particles for more precise and efficient honing. Diamond honing, as the name suggests, utilizes diamond abrasives to achieve a superior surface finish and dimensional accuracy. Each method has its own advantages and suitability for specific applications in surface honing special steel.
- Q:How does special steel perform in terms of wear resistance?
- Special steel is known for its exceptional wear resistance, making it highly durable and long-lasting even under harsh conditions. It exhibits superior resistance to abrasion, erosion, and impact, allowing it to withstand heavy usage and minimize wear and tear. This characteristic makes special steel an excellent choice for applications where wear resistance is crucial, such as in the manufacturing of tools, machinery, and automotive components.
- Q:How does special steel contribute to the packaging aftermarket industry?
- The packaging aftermarket industry greatly benefits from the use of special steel, which provides various advantages that enhance the efficiency and quality of packaging processes. Firstly, special steel is renowned for its exceptional strength and durability, making it ideal for the manufacturing of packaging machinery and equipment. This durability ensures that the machinery can withstand the demanding requirements of the industry, resulting in improved reliability and less downtime. Additionally, special steel boasts excellent resistance to corrosion, making it highly suitable for packaging applications that involve exposure to moisture, chemicals, or extreme temperatures. This corrosion resistance extends the lifespan of packaging equipment and prevents degradation, ultimately reducing maintenance costs and enhancing the overall efficiency of the packaging aftermarket industry. Moreover, special steel can be customized to meet specific needs, allowing for the production of tailored packaging solutions. This flexibility and versatility enable manufacturers to create innovative designs that enhance product protection, optimize space utilization, and improve transportation logistics. For example, special steel can be used to manufacture lightweight yet strong packaging materials, reducing shipping costs and minimizing the environmental impact associated with packaging waste. Furthermore, special steel possesses excellent machinability and weldability, making it easy to fabricate intricate packaging components with high precision. This capability enables manufacturers to produce packaging solutions that perfectly fit specific product dimensions, ensuring optimal protection during transit. In conclusion, special steel plays a vital role in the packaging aftermarket industry by offering strength, durability, corrosion resistance, customization options, and excellent machinability. These qualities contribute to the overall efficiency, reliability, and quality of packaging processes, benefiting both manufacturers and consumers.
- Q:What are the applications of special steel in the electronics industry?
- Special steel is widely used in the electronics industry due to its unique properties and benefits. Some of the applications of special steel in this industry include the manufacturing of electronic components, such as connectors, springs, and contacts, which require high strength and corrosion resistance. Special steel is also used in the production of magnetic cores for transformers and inductors, as it exhibits excellent magnetic properties. Additionally, special steel is utilized in the fabrication of precision tools and equipment used in electronics manufacturing processes, ensuring high precision, durability, and reliability. Overall, the applications of special steel in the electronics industry contribute to enhanced performance, efficiency, and longevity of electronic devices and systems.
- Q:What are the properties of special steel?
- Special steel has several unique properties that make it highly desirable in various industries. Firstly, it possesses exceptional strength and durability, allowing it to withstand high levels of stress, pressure, and temperature. This property makes it suitable for applications in construction, automotive, and aerospace sectors where strength and reliability are crucial. Additionally, special steel offers excellent corrosion resistance, ensuring its longevity even in harsh environments. It is also known for its excellent machinability, weldability, and formability, making it easy to work with and shape into desired forms. Furthermore, special steel exhibits good magnetic properties, making it ideal for use in electrical components and magnetic devices. Overall, the properties of special steel make it a versatile material that can be customized for specific applications, offering exceptional performance and reliability.
- Q:How does special steel contribute to the manufacturing of power generation equipment?
- Special steel plays a crucial role in the manufacturing of power generation equipment due to its unique properties and characteristics. Its exceptional strength, durability, and resistance to corrosion and high temperatures make it an ideal material for various components used in power plants, including turbines, boilers, and generators. Special steel's ability to withstand extreme conditions ensures the reliability and efficiency of power generation equipment, contributing to the overall performance and longevity of power plants.
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Special Steel Round Bar AISI 4140 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
OKorder Financial Service
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