Grade SAE 4140 Steel Price_Steel Round Bar Dimension
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Grade SAE 4140 Steel Price_Steel Round Bar Dimension
Details of Grade SAE 4140 Steel Price_Steel Round Bar Dimension
Name | Steel Round Bar |
Shape | Round Bar/Square Bar/Flat Bar/Plate/Wire |
Standard | GB/ASTM/SAE/AISI/DIN/JIS/EN/BS |
Surface Treatment: | Black/Peeling/Polished/Machined |
Delivery Condition: | Hot Rolled or Forged/Peeled or Black Surface |
Test | SGS/UT 100% Elements Testing |
Certificate: | ISO/Mill Certificate |
Service: | 24 hours online service / |
more than 20 years trading and manufacture | |
Quality Assurance: | the third party inspection, such as SGS, BV, TUV…etc. is acceptable |
Packaging Details: | Seaworthy Packaging or as per customer's packing instruction |
Specification of SAE 4140 Steel Price_Steel Round Bar Dimension
1.Size of 4140 Steel Round Bar | ||||||||
Round bar | Diameter(mm) | Length (mm) | ||||||
20~800 | 3000~9000 | |||||||
Plate | Thickness(mm) | Width (mm) | Length (mm) | |||||
Max:800 | Max:2200 | Max:9000 | ||||||
The specification can be customized. | ||||||||
2.Chemical Compositons | ||||||||
Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
42CrMo | 0.38~0.45 | 0.17~0.37 | 0.50~0.8 | ≤0.035 | ≤0.035 | 0.9~1.2 | 0.15-0.25 | ≤0.3 |
4140 | 0.40~0.45 | 0.15~0.35 | 0.75~1.0 | ≤0.035 | ≤0.040 | 0.8~1.1 | 0.15-0.25 | - |
SCM44 | 0.38~0.43 | 0.15~0.35 | 0.60~0.9 | ≤0.030 | ≤0.030 | 0.9~1.2 | 0.15-0.30 | ≤0.25 |
1.7225 | 0.38~0.45 | ≤0.40 | 0.60~0.9 | ≤0.025 | ≤0.035 | 0.9~1.2 | 0.15-0.30 |
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3.Features of 4140 alloy steel | ||||||||
1. Chromium molybdenum alloy steel | ||||||||
2. Slightly higher carbon content then 4130 | ||||||||
3. Greater strength and heat treatment | ||||||||
4.Typical Applications | ||||||||
1. Applications in the oil and gas sector | ||||||||
2. Connection rods, collets, conveyor pins, | ||||||||
3. Gears, stem assemblies, | ||||||||
4. Pump shafts and tool holders | ||||||||
CNBM Introduction of SAE 4140 Steel Price_Steel Round Bar Dimension Supplier
CNBM International Corporation is the most import and export platform of CNBM group(China National Building Material Group Corporation) ,which is a state-owned enterprise, ranked in 270th of Fortune Global 500 in 2015.
With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.
After-sale service |
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Advantages
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Packaging & Delivery SAE 4140 Steel Price_Steel Round Bar Dimension
Packaging Detail | Sea worthy packing /as per customer's packing instruction |
Delivery Detail | 15 ~ 40 days after receiving the deposit |
Products Show
FAQ:
Are you a trading company or manufacturer? | Manufacturer |
What’s the MOQ? | 3 metric ton |
What’s your delivery time? | 15-35 days after downpayment received |
Do you Accept OEM service? | Yes |
what’s your delivery terms? | FOB/CFR/CIF |
What's the Payment Terms? | 30% as deposit,70% before shipment by T/T |
Western Union acceptable for small amount. | |
L/C acceptable for large amount. | |
Scrow ,Paybal,Alipay are also ok | |
Why choose us? | Chose happens because of quality, then price, We can give you both. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals. |
What's your available port of Shipment? | Main Port, China |
What’s your featured services? | Our service formula: good quality+ good price+ good service=customer's trust
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Where are your Market? | Covering more than 160 countries in the world |
- Q: How does the heat treatment process affect the hardness of special steel?
- The hardness of special steel is greatly influenced by the heat treatment process. This process involves heating the steel to a specific temperature, maintaining it at that temperature for a certain period, and then cooling it at a controlled rate. By altering the microstructure of the steel, the heat treatment process impacts its hardness. Quenching, which is one of the most commonly used heat treatment techniques, involves rapidly cooling the steel. This results in the formation of martensite, a hard and brittle microstructure. The rapid cooling prevents the formation of softer microstructures like pearlite or ferrite, leading to an increase in the steel's hardness. Tempering is another heat treatment process that affects the hardness of special steel. After quenching, the steel is often tempered to decrease its brittleness and enhance its toughness. This involves reheating the quenched steel to a lower temperature and then slowly cooling it. Through this process, some of the martensite transforms into a more ductile microstructure, such as tempered martensite or bainite. These microstructures retain some of the hardness of martensite while also providing improved toughness and resistance to fracture. To summarize, the heat treatment process plays a significant role in determining the hardness of special steel. Quenching increases hardness by forming martensite, whereas tempering balances hardness with improved toughness. By adjusting parameters such as temperature and cooling rate, the desired hardness and mechanical properties can be achieved for different applications of special steel.
- Q: What are the limitations of using special steel?
- Some limitations of using special steel include its high cost compared to regular steel, limited availability due to specific alloy compositions, and the need for specialized knowledge and equipment to work with it. Additionally, special steel may have lower ductility and toughness compared to other materials, making it less suitable for certain applications that require high impact resistance or flexibility.
- Q: What are the different types of welding techniques used for special steel?
- There are several types of welding techniques used for special steel, including TIG (Tungsten Inert Gas) welding, MIG (Metal Inert Gas) welding, Stick welding, and Flux-cored arc welding. These techniques are commonly used for welding special steel due to their ability to provide strong and precise welds, ensuring the integrity and durability of the material.
- Q: What are the thermal properties of special steel?
- Special steels have unique thermal properties that make them highly desirable in various applications. One of the key thermal properties of special steel is its high thermal conductivity. This means that it is able to efficiently transfer and dissipate heat. This property makes special steel ideal for use in heat exchangers, where it can effectively transfer heat between fluids. Additionally, special steel has a high melting point, which allows it to withstand high temperatures without deforming or losing its structural integrity. This makes it suitable for applications that involve exposure to extreme heat, such as in furnaces or aerospace engines. Furthermore, special steel exhibits excellent thermal expansion properties. It expands and contracts at a relatively consistent rate with changes in temperature, minimizing the risk of warping or cracking. This property is particularly important in applications where dimensional stability is crucial, such as in precision instruments or high-temperature machinery. Moreover, special steel can also possess good resistance to thermal fatigue. This means that it can withstand repeated heating and cooling cycles without developing cracks or weakening. This property is especially beneficial in applications that involve cyclic thermal loading, such as in automotive engine components or turbine blades. In summary, special steel possesses high thermal conductivity, a high melting point, excellent thermal expansion properties, and resistance to thermal fatigue. These thermal properties make it a preferred choice in a wide range of industries, including automotive, aerospace, energy, and manufacturing, where thermal performance and durability are crucial.
- Q: How does special steel contribute to improving product quality?
- Special steel contributes to improving product quality in several ways. Firstly, special steel has superior strength and durability compared to ordinary steel, making it less likely to deform or break under stress. This ensures that products made with special steel have a longer lifespan and are more reliable for consumers. Secondly, special steel can be engineered with specific properties such as corrosion resistance, heat resistance, or high hardness, which are essential for certain industries or applications. This allows manufacturers to create products that can withstand harsh environments or demanding conditions, ultimately enhancing product quality. Lastly, special steel can be precision-machined to tight tolerances, enabling the production of complex and intricate components with high precision. This level of accuracy results in better-fitting parts, improved performance, and enhanced overall product quality.
- Q: How are aluminum alloys used in the automotive industry?
- Aluminum alloys are widely used in the automotive industry due to their lightweight yet durable properties. They are used in the construction of car bodies, engine components, wheels, suspension systems, and other critical parts. By using aluminum alloys, vehicles can achieve better fuel efficiency, improved performance, and reduced emissions. Additionally, these alloys offer better corrosion resistance, which enhances the lifespan and overall quality of automobiles.
- Q: Can special steel be used in the aerospace parts manufacturing industry?
- Yes, special steel can be used in the aerospace parts manufacturing industry. Special steel alloys are often chosen for their superior strength, corrosion resistance, and high-temperature performance, making them ideal for aerospace applications where durability and reliability are crucial.
- Q: How does nitriding steel improve hardness and wear resistance?
- Nitriding steel improves hardness and wear resistance by introducing nitrogen into the surface of the material. This process forms nitrides, which are hard compounds that increase the surface hardness of the steel. Additionally, the nitrides create a protective layer that enhances the material's resistance to wear, erosion, and corrosion.
- Q: Is special steel suitable for marine applications?
- Marine applications necessitate materials capable of enduring high levels of moisture, exposure to saltwater, and environmental factors such as temperature fluctuations and the impact of waves. Special steel, also known as marine grade stainless steel, is specifically engineered to withstand the challenging conditions prevalent in marine environments. Its exceptional resistance to corrosion, particularly in the presence of saltwater, renders it highly appropriate for diverse marine applications. Distinguished by a greater proportion of chromium and nickel compared to standard steel grades, special steel augments its corrosion resistance properties. Furthermore, it is frequently alloyed with molybdenum, titanium, or other elements to further enhance its resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking. Shipbuilding, offshore oil and gas platforms, marine equipment and machinery, marine pipelines, as well as marine architecture and structures are among the common marine applications that derive benefits from special steel. Additionally, special steel is employed in the construction of naval vessels, submarines, and offshore wind farms. To summarize, special steel is exceptionally well-suited to marine applications due to its exceptional resistance to corrosion, durability, and strength. It effectively withstands the rigorous conditions present in marine environments, ensuring the longevity and dependability of marine structures and equipment.
- Q: What are the future trends and innovations expected in special steel production?
- The special steel production industry is anticipated to undergo significant changes in the future. Several trends and innovations will shape this industry, and the following key areas are expected to see advancements: 1. Advanced Manufacturing Techniques: Special steel manufacturers will likely adopt advanced manufacturing techniques, such as additive manufacturing (3D printing) and digitalization. These technologies will facilitate the production of complex geometries, minimize waste, and allow for customization of special steel products. 2. Sustainable Production: Due to growing environmental concerns, there will be a focus on sustainable production methods in the special steel industry. This will involve adopting energy-efficient processes, recycling and reusing materials, and reducing the carbon footprint of steel production. 3. High-Strength and Lightweight Alloys: The demand for lightweight materials in sectors like automotive and aerospace will drive special steel production towards developing high-strength and lightweight alloys. These alloys will enhance performance while reducing component weight, leading to improved fuel efficiency and sustainability. 4. Nanotechnology and Microstructural Engineering: Nanotechnology and microstructural engineering will enhance the properties of special steels. By manipulating materials at the nanoscale, manufacturers can improve strength, toughness, corrosion resistance, and other characteristics. 5. Enhanced Surface Treatments: Advancements in surface treatments, such as coatings, will improve the performance and longevity of special steel products. Innovative surface treatments will offer increased resistance to wear, corrosion, and heat, expanding the range of applications for special steels. 6. Digitalization and Data Analytics: Special steel production will undergo a revolution with the integration of digital technologies and data analytics. Smart factories with interconnected systems will enable real-time monitoring, predictive maintenance, and improved quality control, resulting in higher productivity and efficiency. 7. Automation and Robotics: Automation and robotics will continue to play a vital role in special steel production, optimizing productivity, reducing human errors, and improving worker safety. This will enhance overall operational efficiency. 8. Industry 4.0 Integration: The special steel industry will embrace Industry 4.0 principles, including the Internet of Things (IoT) and artificial intelligence (AI). These technologies will enable seamless connectivity, intelligent decision-making, and predictive analysis, leading to improved productivity, cost-effectiveness, and competitiveness. In conclusion, the future of special steel production will be shaped by advancements in manufacturing techniques, sustainable practices, material engineering, digitalization, and automation. These innovations will not only enhance the performance and quality of special steel products but also contribute to a more sustainable and efficient industry.
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Grade SAE 4140 Steel Price_Steel Round Bar Dimension
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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