Alloy Steel Cr40,Steel Material,40cr Steel Specification
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
Alloy Steel Cr40,Steel Material,40cr Steel Specification
Product information:
| Alloy Steel Cr40,Steel Material,40cr Steel Specification | |||||||||
| 1.Specifications of 40Cr Steel | |||||||||
| Round bar | Diameter(mm) | Length (mm) | |||||||
| 20~800 | 3000~5800 | ||||||||
| Plate | Thickness(mm) | Width (mm) | Length (mm) | ||||||
| Max:800 | 205~800 | 2000~4000 | |||||||
| The specification can be customized. | |||||||||
| 2.Chemical compositon(%) of 40Cr Steel | |||||||||
| Standard | C | Mn | Si | Cr | Mo | P | S | ||
| Number | Ni | ||||||||
| GB | 42CrMo | 0.38~0.45 | 0.50~0.8 | 0.17~0.37 | 0.9~1.2 | 0.15~0.25 | ≤0.035 | ≤0.035 | ≤0.3 |
| AISI | 4140 | 0.40~0.45 | 0.75~1.0 | 0.15~0.35 | 0.8~1.1 | 0.15~0.25 | ≤0.035 | ≤0.040 | |
| JIS | SCM440 | 0.38~0.43 | 0.60~0.9 | 0.15~0.35 | 0.9~1.2 | 0.15~0.30 | ≤0.030 | ≤0.030 | ≤0.25 |
| EN (DIN) | 1.7225 | 0.38~0.45 | 0.60~0.9 | ≤0.40 | 0.9~1.2 | 0.15~0.30 | ≤0.025 | ≤0.035 | |
| 4.Heat treatment of 40Cr Steel | |||||||||
| Forging:1100~900°C | |||||||||
| Normalization:860~880°C | |||||||||
| Subcritical annealing:680~720°C | |||||||||
| Isothermal annealing:830~900 670x3h°C | |||||||||
| Hardening:830~860 oil | |||||||||
| Tempering:550~650°C | |||||||||
| 5.Machanical Properties | |||||||||
| Tensile str. (N/mm2):1080 | |||||||||
| Yield point (N/mm2):930 | |||||||||
| Elongation (%):12 | |||||||||
| Contraction (%):45 | |||||||||
| Impack work (J/cm2):63 | |||||||||
| Hardness (HB):217 | |||||||||
| 5.Characteristic of 40Cr Steel | |||||||||
| Chromium molybdenum high tensile steel with yield strength of 550N/mm2. | |||||||||
| Chromium renders steel oil hardenable and increase hardenability. | |||||||||
| Weldability suffers with increasing chromium content. | |||||||||
| High temperature strength and high pressure hydrogenation properties are | |||||||||
| promoted by chromium and molybdenum. | |||||||||
| Molybdenum significantly reduces temper brittleness. | |||||||||
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40Cr steel, is a high quality alloy structural steel. The main components are 0.37-0.44 Si 0.17-0.37 Mn 0.50-0.80 Cr 0.80-1.10 C.
40Cr steel is used as a mechanical part and a variety of engineering components and contains one or more of the alloy elements of a certain amount of steel.This kind of steel is suitable for the heat treatment of metal, and the microstructure is uniform, bainite, or very fine pearlite after heat treatment.
So the 40Cr steel with wear consumption, chemical corrosion resistance, tensile strength, high elasticity, high pressure load, wear-resistant high strength, ceiling shock resistance, tear resistance, radiation resistance, high load and shock absorption, good performance.
Import of 40 Cr steel has better elastic recovery performance and better hardness and toughness, wear resistance, machinability is superior.
Used in metallurgy, mines, petroleum, automobile, building materials, sports, heavy machinery, large stamping equipment shock absorbing cushion, cushion block, a spring and a metal plate, pipe punching material mold, general machinery and equipment and other accessories cushion or damping effect is ideal material for mould spring.
- Q:Can special steel be used for making power generation equipment?
- Yes, special steel can be used for making power generation equipment. Special steels are specifically designed to have enhanced properties such as high strength, corrosion resistance, heat resistance, and wear resistance. These properties make special steel suitable for use in demanding applications such as power generation equipment, which often operates under high temperatures and pressures. Power generation equipment, such as turbines, boilers, and generators, require materials that can withstand harsh operating conditions and deliver reliable performance over an extended period. Special steel grades, such as stainless steels, nickel-based alloys, and heat-resistant steels, are commonly used in the construction of power plants and power generation equipment. Stainless steels are frequently used in power generation due to their excellent corrosion resistance, which is crucial for equipment exposed to high moisture or aggressive environments. Nickel-based alloys are renowned for their exceptional high-temperature strength, making them ideal for components subjected to extreme heat, such as turbine blades or exhaust systems. Heat-resistant steels, on the other hand, are specifically designed to retain their mechanical properties at elevated temperatures, making them suitable for applications such as boilers and heat exchangers. In summary, special steel offers a range of desirable properties that make it highly suitable for manufacturing power generation equipment. Its strength, corrosion resistance, heat resistance, and wear resistance make it an excellent choice for withstanding the demanding conditions found in power plants and ensuring the reliable and efficient generation of electricity.
- Q:What are the requirements for special steel used in renewable energy equipment manufacturing?
- The requirements for special steel utilized in the manufacturing of renewable energy equipment differ significantly from traditional steel used in other industries. In order to meet the demanding nature of renewable energy equipment, the steel must possess certain unique characteristics and properties to ensure optimal performance and durability. 1. Excellent corrosion resistance is a necessity for special steel used in renewable energy equipment, as it must be able to withstand exposure to harsh environmental conditions. This is especially crucial for offshore wind turbines or solar panels that are installed in coastal areas with high salt content in the air. 2. The steel should possess high strength and toughness to withstand mechanical stresses and loads. Renewable energy equipment, such as wind turbine towers or hydroelectric dams, experiences significant forces such as strong winds, water pressure, or vibrations. Steel with high strength provides the necessary structural integrity to handle these forces. 3. Given the cyclic nature of renewable energy equipment, the steel must have excellent fatigue resistance. Wind turbines, for instance, constantly experience alternating loads due to wind gusts and rotational forces. Specially designed steel with fatigue resistance properties can prevent structural failures caused by repeated stress. 4. Weldability is a crucial requirement for the steel used in renewable energy equipment manufacturing. Many components of renewable energy systems require welding, and the steel must be easily weldable without compromising its strength or other properties. 5. The steel used in renewable energy equipment should align with the objective of environmental sustainability. Steel manufacturers are increasingly focusing on reducing the carbon footprint of their products by incorporating recycled content or adopting greener production processes. 6. Special steel used in renewable energy equipment must also be cost-effective while meeting all the aforementioned requirements. The steel should provide the desired properties at a reasonable cost to ensure the competitiveness and viability of renewable energy projects. To fulfill these requirements, steel manufacturers often develop specific grades or alloys tailored to the needs of renewable energy equipment manufacturers. These grades continuously evolve as the renewable energy industry advances, enabling the production of more efficient and durable equipment that supports the transition to clean energy sources.
- Q:What are the different corrosion-resistant special steel alloys?
- Various industries commonly utilize several corrosion-resistant special steel alloys. Among the most popular are stainless steel, duplex stainless steel, super duplex stainless steel, and nickel-based alloys. Stainless steel, which contains a minimum of 10.5% chromium, is a widely used corrosion-resistant alloy. It forms a protective layer of chromium oxide on its surface, effectively preventing further corrosion. This alloy exhibits high resistance to rust, staining, and pitting, making it suitable for applications in the food processing, chemical, and marine industries. Duplex stainless steel, a combination of austenitic and ferritic stainless steels, offers excellent corrosion resistance, particularly in environments with high chloride ion concentrations. It finds common use in the oil and gas, chemical, and desalination industries. Super duplex stainless steel, being a stronger variation of duplex stainless steel, provides enhanced corrosion resistance and mechanical properties. This makes it ideal for applications in harsh environments like offshore oil and gas platforms, chemical processing plants, and seawater desalination systems. Nickel-based alloys, including Inconel and Hastelloy, are renowned for their exceptional resistance to corrosion and high-temperature environments. These alloys find widespread use in industries such as aerospace, chemical processing, and power generation, where both corrosion and heat resistance are critical. These corrosion-resistant special steel alloys offer a range of options for industries seeking materials with superior durability and resistance to corrosive environments. The choice of alloy depends on the specific application, operating conditions, and desired performance characteristics.
- Q:How does special steel contribute to the creep resistance of products?
- Special steel contributes to the creep resistance of products by offering enhanced mechanical properties, such as high tensile strength and toughness, which help to resist deformation and damage over time. Additionally, the unique alloying elements and heat treatment processes used in special steel production further improve its resistance to creep, which is the gradual deformation occurring under prolonged exposure to high temperatures and constant stress. This makes special steel a reliable choice for applications where long-term structural integrity and durability are crucial, such as in high-temperature environments or load-bearing components.
- Q:What are the requirements for special steel used in high-strength applications?
- The requirements for special steel used in high-strength applications typically include high tensile strength, excellent toughness, good corrosion resistance, and the ability to withstand extreme temperatures. Additionally, the steel must possess good weldability and formability to facilitate the manufacturing process. Furthermore, it should meet specific industry standards and specifications to ensure its suitability for the intended application.
- Q:How does spring steel maintain its elasticity?
- Spring steel maintains its elasticity due to its unique composition and manufacturing process. It is made from a high carbon steel alloy that undergoes heat treatment and quenching, which gives it its exceptional strength and flexibility. This heat treatment process called tempering allows the steel to retain its shape and bounce back to its original form after being deformed or subjected to external forces. The carbon content in spring steel also contributes to its elasticity by providing increased hardness and resistance to deformation. Overall, the combination of high carbon content, heat treatment, and quenching make spring steel highly durable and able to maintain its elasticity over extended periods of use.
- 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:How does special steel perform in terms of thermal conductivity?
- Special steel typically has lower thermal conductivity compared to other materials. This means that it is not as efficient in conducting heat and may retain heat for longer periods of time.
- Q:What are the different methods of improving the strength of special steel?
- There are several methods that can be employed to improve the strength of special steel. One common method is through the process of alloying. By adding certain elements to the steel, such as manganese, chromium, or vanadium, the strength and hardness of the steel can be significantly increased. These alloying elements form strong and stable compounds with the steel, enhancing its overall strength. Another method is through heat treatment. This involves subjecting the steel to controlled heating and cooling processes to alter its microstructure. For instance, quenching and tempering can be used to increase the strength and hardness of the steel by creating a hardened martensitic structure. Precipitation hardening is another heat treatment technique which involves the formation of fine particles within the steel matrix, resulting in improved strength. Cold working is also a widely used method for strengthening special steel. By subjecting the steel to plastic deformation at low temperatures, its grain structure becomes elongated and dislocations are introduced. This leads to an increase in strength and hardness of the steel. Additionally, surface treatments can be applied to improve the strength of special steel. For example, carburizing or nitriding can be used to introduce carbon or nitrogen into the surface layer of the steel, forming a hard and wear-resistant surface. Furthermore, advancements in metallurgical technology have introduced techniques such as powder metallurgy and rapid solidification. These methods involve the production of steel with fine and homogeneous microstructures, resulting in improved strength and performance. Overall, the methods of improving the strength of special steel include alloying, heat treatment, cold working, surface treatments, and advanced metallurgical technologies. These techniques can be tailored to meet specific requirements, enabling the production of high-strength and high-performance steel for various applications.
- Q:What are the applications of special steel in the agriculture supply chain?
- Special steel has several applications in the agriculture supply chain. It is commonly used in the manufacturing of farm equipment and machinery such as tractors, plows, and harvesters. Special steel's high strength and durability make it ideal for these heavy-duty applications, ensuring that the equipment can withstand the demanding conditions of the agricultural sector. Additionally, special steel is also used in the production of storage tanks and silos, providing a robust and reliable solution for storing grains, fertilizers, and other agricultural products.
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Alloy Steel Cr40,Steel Material,40cr Steel Specification
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 30 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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