Steel Bar 41cr4 40cr ASTM 5140 Round Bar
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
Steel Bar 41cr4 40cr ASTM 5140 Round Bar
Product Information:
1. Stock advantage
2. Completed size and material
3. Quick producing abilities
4. Flexible payment term
| Standard | GB/T699,GB/T700,GB/T702,GB/T3077 |
| Grade | alloy bar: 20Cr,40Cr,20CrMo, 35CrMo,42CrMo, |
| carbon bar:Q235B,20#,35#,45# | |
| Dimensions | Dia 10mm-1000mm |
| Place of Origin | China (Mainland) |
| Secondary Or Not | Non-secondary |
| Application | Structure bar, |
| Technique | Forged |
| Certification | API |
| Alloy Or Not | Is Alloy |
| packing | Hexagon bundle or bare bundle |
| Delivery | By container/train/lorry |
| Delivery time | 10days |
| Third Party Inspection | SGS/BV/LORDS |
Product Overviews:
| Product Name | Typical Grades | Diameter(mm) | Standard adopted |
| Carbon Steel | 20 (1020/S20C/C22) | Ø16-Ø300 | GB/SAE/JIS/DIN |
| 40 (1040/S40C/C40) | |||
| 45 (1045/S45C/C45) | |||
| Bearing Steel | GCr9 (51100/SUJ1) | Ø12-Ø250 | |
| GCr15 (52100/SUJ2/100Gr6) | |||
| GCr9SiMn (A485-Gr.1/SUJ3) | |||
| Cr-Mo Steel | 20Cr (5120/SCr420H/20Cr4) | Ø12-Ø250 | |
| 40Cr (5140/SCr440/41Cr4) | |||
| 42CrMo(4140/SCM440/42CrMo4) | |||
| Gear Steel | 20CrNiMo | Ø16-Ø600 | |
| 20CrMn(5115/SMnC420/20MnCr5) | |||
| 20CrNiMo(8620/SNCM220/20CrMiMo2) |
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- Q: What are the common quality control measures for special steel?
- Common quality control measures for special steel include: 1. Chemical Composition Analysis: Special steel often requires specific chemical compositions to meet the desired properties. Quality control measures involve analyzing the chemical composition through techniques like spectrometry to ensure it meets the required specifications. 2. Mechanical Testing: Special steel needs to possess specific mechanical properties such as strength, hardness, toughness, and ductility. Quality control measures involve conducting mechanical tests like tensile testing, hardness testing, impact testing, and fatigue testing to ensure the steel meets the required standards. 3. Non-Destructive Testing: Non-destructive testing methods like ultrasonic testing, magnetic particle testing, and dye penetrant testing are employed to detect any internal or surface defects in the steel. These tests help ensure the integrity and reliability of the special steel. 4. Dimensional Inspection: Special steel often requires precise dimensions for its intended application. Dimensional inspection involves measuring the length, width, thickness, diameter, and other critical dimensions to ensure they meet the required tolerances specified by the customer or industry standards. 5. Surface Quality Inspection: Special steel may require specific surface finishes or coatings to enhance its performance or resistance to corrosion. Quality control measures involve inspecting the steel surface for defects such as cracks, pits, scratches, or unevenness to ensure it meets the required surface quality standards. 6. Heat Treatment Verification: Special steel often undergoes heat treatment processes like annealing, quenching, or tempering to achieve the desired mechanical properties. Quality control measures involve verifying the effectiveness of the heat treatment process through hardness testing or microstructure analysis. 7. Documentation and Traceability: Quality control measures also involve maintaining comprehensive documentation and traceability records of the special steel, including details of its production process, chemical composition, mechanical properties, and any inspections or tests performed. This helps ensure quality consistency and provides a reference for future use or troubleshooting. By implementing these quality control measures, manufacturers can ensure that special steel meets the required specifications, providing customers with high-quality and reliable products for their specific applications.
- Q: How does special steel contribute to reducing product lead times?
- Special steel contributes to reducing product lead times by offering enhanced material properties and performance characteristics. It allows manufacturers to achieve higher machining speeds and feeds, resulting in faster production processes. Special steel also exhibits excellent dimensional stability, reducing the need for post-processing and time-consuming adjustments. Moreover, its exceptional strength and durability enable the design of lighter and more efficient components, which can expedite assembly and reduce overall manufacturing time. By utilizing special steel, companies can streamline their production operations, increase productivity, and ultimately shorten product lead times.
- Q: What are the requirements for special steel used in mining equipment manufacturing?
- The requirements for special steel used in mining equipment manufacturing typically include high strength and toughness to withstand the harsh operating conditions, excellent wear resistance to endure abrasive materials, good corrosion resistance to resist chemical exposure, and high fatigue strength to withstand repeated loading. Additionally, the steel should have good weldability and machinability to facilitate fabrication processes.
- Q: How does special steel perform in cryogenic wear resistance?
- Special steel is renowned for its outstanding performance in resisting wear and tear in cryogenic environments. When exposed to extremely low temperatures, special steel retains its strength, hardness, and durability, rendering it highly resistant to wearing and friction. This is particularly vital in applications involving cryogenic settings, such as those found in the aerospace industry or in superconductor production. The distinct composition and processing techniques employed in special steel enable it to withstand the challenges posed by cryogenic conditions. It showcases superior toughness, ensuring that it does not become brittle or susceptible to cracking when subjected to low temperatures. Furthermore, the steel's microstructure remains stable, preventing any significant alterations in its mechanical properties when exposed to extreme cold. Moreover, special steel is frequently subjected to various surface coatings or heat treatments to further enhance its resistance to wear. These treatments generate a protective layer or alter the steel's microstructure, thereby reducing the likelihood of wear and prolonging its lifespan in cryogenic environments. To summarize, special steel excels in resisting wear and tear in cryogenic conditions due to its ability to maintain strength, hardness, and durability at extremely low temperatures. Its exceptional toughness, stable microstructure, and potential for surface treatments make it the preferred choice for applications that demand reliable performance in cryogenic settings.
- Q: How are tungsten alloys used in the defense industry?
- Tungsten alloys are commonly used in the defense industry due to their exceptional properties such as high density, strength, and resistance to heat and corrosion. These alloys are used in various applications including armor piercing ammunition, kinetic energy penetrators, and armor plating for military vehicles and aircraft. Their ability to withstand extreme conditions and penetrate hardened targets make tungsten alloys vital for enhancing the effectiveness and protection capabilities of defense systems.
- Q: How does special steel perform in high-temperature creep?
- Special steel is specifically designed to perform well in high-temperature creep conditions. It possesses superior strength, resistance to deformation, and stability at elevated temperatures, making it highly suitable for applications where prolonged exposure to high temperatures and constant stress is expected. Its unique composition and heat treatment processes enable it to maintain its mechanical properties and resist deformation or failure for extended periods under these extreme conditions.
- Q: What is the fatigue strength of special steel?
- The fatigue strength of special steel refers to its ability to withstand repeated loading and unloading cycles without failure or deformation. It is typically higher than that of regular steel due to its unique composition and manufacturing process, which enhances its resistance to fatigue and improves its durability in demanding applications.
- Q: Can special steel be used for aerospace engine components?
- Yes, special steel can be used for aerospace engine components. Special steel is often preferred for its exceptional strength, heat resistance, and durability, making it suitable for the demanding conditions and high temperatures experienced in aerospace engines. Additionally, special steel alloys can be tailored to specific requirements, enabling engineers to optimize performance and enhance overall efficiency in aerospace applications.
- Q: What are the properties of magnetic alloy steel?
- Magnetic alloy steel possesses several properties that make it unique and useful. It exhibits high magnetic permeability, allowing it to effectively conduct magnetic fields. This property makes it ideal for applications such as transformers, electromagnetic devices, and magnetic cores. Additionally, magnetic alloy steel has excellent mechanical strength and durability, enabling it to withstand high temperatures and resist corrosion. Its combination of magnetic and structural properties makes it a valuable material for various industrial and technological purposes.
- Q: What are the different methods of surface grinding for special steel?
- For special steel, there exist numerous techniques for surface grinding. Presented below are some of the most commonly employed methods: 1. Blanchard Grinding: To eliminate material from the steel's surface, this technique employs a grinding wheel and a rotary table. The grinding wheel, usually composed of abrasive particles bonded together in a matrix, revolves at a high speed. Blanchard grinding excels in its ability to swiftly and efficiently remove substantial amounts of material, making it ideal for roughing operations. 2. Precision Grinding: This method is frequently utilized for finishing operations that demand a high level of accuracy and surface finish. Precision grinding entails the use of a surface grinder equipped with a fine-grit grinding wheel to eliminate a small quantity of material from the steel's surface. This process is typically slower and more precise than Blanchard grinding, resulting in a smoother and more refined surface. 3. Centerless Grinding: For cylindrical steel components necessitating exceptional precision, centerless grinding is commonly employed. This technique involves feeding the steel between a grinding wheel and a regulating wheel, with the grinding wheel removing material from the surface as it rotates. The regulating wheel governs the speed and feed rate of the steel, ensuring consistent and precise grinding. 4. Creep Feed Grinding: This technique is employed for the substantial removal of stock from large steel parts. Creep feed grinding involves employing a slow feed rate and making deep cuts to eliminate material from the surface. This method is typically employed for specialized applications where traditional surface grinding methods are unsuitable due to the size or complexity of the steel part. Ultimately, the selection of a surface grinding method for special steel hinges on factors such as the desired surface finish, accuracy requirements, and the size and complexity of the steel part. Consulting with a proficient grinding professional is vital to determine the most suitable method for a specific application.
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Steel Bar 41cr4 40cr ASTM 5140 Round Bar
- 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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