Grade AISI 4340 CNBM Forged Steel Round Bar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 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
You Might Also Like
Specification
Type:
Alloy Steel
Shape:
Steel Round Bar
Grade AISI 4340 CNBM Forged Steel Round Bar
Name | SAE4340 Carbon 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 |
Machine Capability
Tensile strength (N/mm2Mpa): >=980(100)
Elongation: >=12
Yield strength: >=835(85)
Hardness:( HBS 100/3000)<=269
Reduction of area:>=55
Akv(J)>=78 akv(J/cm2):>=98(10)
Chemical Composition (%):
C | Si | Mn | S | P | Cr | Ni | Cu | Mo |
0.37-0.44 | 0.17-0.37 | 0.40-0.80 | 0.025(max) | 0.025(max) | 0.60-0.90 | 1.25-1.65 | 0.025(max) | 0.15-0.25 |
Packaging & Delivery
Packaging Detail | Sea worthy packing /as per customer's packing instruction |
Delivery Detail | 15 ~ 40 days after receiving the deposit |
Product Show
Workshop
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 |
Where are your Market? | Covering more than 160 countries in the world |
- Q: What are the common challenges in machining titanium alloys?
- The common challenges in machining titanium alloys include their high chemical reactivity, low thermal conductivity, high cutting forces, and poor chip control. Additionally, titanium alloys tend to work harden, making them prone to tool wear and requiring frequent tool changes. Moreover, their low modulus of elasticity can lead to vibration and chatter during machining operations, affecting surface quality and dimensional accuracy.
- Q: Can special steel be used in marine environments?
- Indeed, marine environments can benefit from the utilization of special steel. Specifically engineered to endure the harsh conditions prevalent in marine settings, special steel, such as stainless steel or marine-grade steel, proves its worth. These environments typically expose materials to saltwater, which possesses a highly corrosive nature. Nonetheless, special steel's resistance to corrosion remains intact due to its elevated levels of chromium and other alloying elements. Consequently, it becomes exceedingly suitable for an array of marine applications, encompassing shipbuilding, offshore structures, and marine equipment. The reliability of special steel lies in its exceptional strength, durability, and corrosion resistance. Moreover, to further augment its resistance to corrosion, special steel can undergo additional treatment and coating, thereby guaranteeing its longevity and optimal performance in marine conditions.
- Q: How is special steel used in the manufacturing of machinery?
- Special steel is an essential component in the manufacturing of machinery due to its unique properties that make it highly suitable for this purpose. Special steel refers to a category of steel alloys that have been specifically designed and developed to possess exceptional strength, durability, and resistance to wear and tear. In the manufacturing of machinery, special steel is commonly used in various applications. One of the primary uses is in the production of machine components that require high strength and toughness, such as gears, shafts, bearings, and fasteners. These components are subjected to heavy loads, high temperatures, and harsh operating conditions, and therefore, they need to withstand these stresses without failure or deformation. Special steel provides the necessary strength and toughness to ensure the longevity and reliability of these machine parts. Additionally, special steel is also utilized in the manufacturing of cutting tools and dies. Cutting tools, such as drills, milling cutters, and lathe tools, need to have excellent hardness and wear resistance to withstand the forces and abrasion encountered during the machining process. Dies, on the other hand, are used to shape or form materials, and they require high strength and hardness to withstand the repetitive pressure and deformation. Special steel provides the necessary properties to enhance the performance and lifespan of these cutting tools and dies. Furthermore, special steel is often utilized in the construction of machine frames and structural components. The strength and rigidity of special steel make it ideal for supporting heavy loads and maintaining the overall stability of the machinery. By using special steel in the construction of machine frames, manufacturers can ensure the structural integrity and durability of the machinery, which is crucial for safe and efficient operation. Overall, special steel plays a vital role in the manufacturing of machinery by providing the strength, durability, and wear resistance necessary for critical machine components, cutting tools, and structural elements. Its unique properties make it indispensable in the production of high-performance machinery that can withstand the demanding conditions of various industries.
- Q: What are the specific requirements for special steel used in the textile machinery industry?
- The specific requirements for special steel used in the textile machinery industry can vary depending on the specific application and machinery involved. However, there are some general requirements that are common in this industry. 1. Corrosion resistance: Textile machinery is often exposed to moisture, chemicals, and other corrosive substances. Therefore, the special steel used in this industry must have excellent corrosion resistance properties to ensure durability and longevity. 2. High strength: Textile machinery operates under high loads and stresses. Hence, the special steel used must have high strength to withstand these forces and prevent any deformation or failure. 3. Wear resistance: Textile machinery involves constant contact between different components, resulting in wear and tear. Therefore, the special steel used should have good wear resistance properties to minimize the effects of friction and prolong the lifespan of the machinery. 4. Heat resistance: Textile machinery often operates at high temperatures due to the friction generated during the manufacturing process. The special steel used should have excellent heat resistance to prevent any deformation or loss of mechanical properties under high temperature conditions. 5. Machinability: The special steel used in the textile machinery industry should be easily machinable to allow for the production of complex components with precise dimensions. This ensures that the machinery operates smoothly and efficiently. 6. Cost-effectiveness: While meeting all the above requirements, it is essential for the special steel used in the textile machinery industry to be cost-effective. Manufacturers aim to balance the performance and cost to ensure that the machinery remains competitive in the market without compromising on quality. It is important to note that these requirements can vary depending on the specific application within the textile machinery industry. Therefore, it is crucial for manufacturers and engineers to carefully evaluate the requirements of their machinery and select the appropriate special steel accordingly.
- Q: What are the varieties of special steel
- China and Japan, the definition of special steel is relatively close, the special steel into high quality carbon steel, alloy steel, high alloy steel (alloy element is greater than 10%) three categories
- Q: What are the different production methods for special steel?
- There are several different production methods for special steel, each with its own unique advantages and characteristics. Some of the most common methods include: 1. Electric Arc Furnace (EAF): This method involves melting scrap steel in an electric arc furnace, where an electric current generates intense heat to melt the materials. EAF is popular for its flexibility, as it can produce a wide range of steel grades and alloys. 2. Basic Oxygen Furnace (BOF): In this process, molten iron from a blast furnace is combined with scrap steel and oxygen to remove impurities and adjust the carbon content. BOF is known for its high production capacity and ability to produce large quantities of steel. 3. Vacuum Induction Melting (VIM): VIM is a method used to produce high-quality and high-purity steel. It involves melting the raw materials in a vacuum environment to prevent contamination and achieve precise control over the alloy composition. 4. Continuous Casting: This method involves pouring molten steel into a water-cooled mold, which continuously produces solidified steel slabs, blooms, or billets. Continuous casting is known for its efficiency and ability to produce consistent and defect-free steel products. 5. Powder Metallurgy: This technique involves compacting and sintering metal powders to produce steel with specific properties. Powder metallurgy allows for the production of complex shapes, improved mechanical properties, and the incorporation of alloying elements that are challenging to achieve through traditional methods. 6. Additive Manufacturing (AM): Also known as 3D printing, AM is a relatively new method for producing special steel. It involves layer-by-layer deposition of metal powders, which are then fused together using heat or a laser. AM offers great design freedom, the ability to produce complex geometries, and the potential for customized steel parts. Each production method has its own advantages and limitations, and the choice depends on factors such as the desired steel properties, production volume, cost considerations, and the specific requirements of the end-use application.
- Q: What are the different corrosion-resistant coatings for special steel?
- There are several corrosion-resistant coatings available for special steel, including zinc coatings, aluminum coatings, stainless steel coatings, and ceramic coatings. These coatings provide a protective barrier that prevents the steel from coming into contact with corrosive elements, thus extending its lifespan and maintaining its structural integrity.
- Q: What are the requirements for special steel used in high-temperature applications?
- To ensure optimal performance and durability in extreme conditions, special steel utilized in high-temperature applications, such as aerospace, power generation, and oil and gas industries, must fulfill specific criteria. Some essential requirements for this type of steel include: 1. Excellent strength and resistance to deformation at elevated temperatures are vital for maintaining structural integrity and preventing failure or deformation under extreme heat. 2. High resistance to oxidation is necessary to prevent the formation of oxides on the steel's surface, which can weaken its structure and compromise its performance. 3. Exceptional creep resistance is essential to prevent excessive deformation or failure over time caused by constant stress at high temperatures. 4. Good thermal stability allows the steel to retain its mechanical properties even after prolonged exposure to high temperatures, ensuring reliable and consistent performance. 5. In addition to oxidation, the steel must also possess good corrosion resistance to protect against various corrosive agents present in the environment, such as acids, alkalis, and salts. 6. High resistance to thermal fatigue is crucial to prevent cracking, fracturing, or failure due to repeated heating and cooling cycles. 7. Low thermal expansion minimizes dimensional changes and maintains dimensional stability under high-temperature conditions, preventing unwanted distortions or misalignments. 8. Good weldability facilitates the fabrication and joining of components, enabling the construction of complex structures and assemblies required in high-temperature environments. By meeting these requirements, special steel used in high-temperature applications can withstand extreme heat, preserve its structural integrity, and deliver reliable performance in demanding conditions.
- Q: What are the different construction grades of special steel?
- There are several different construction grades of special steel, including but not limited to ASTM A36, ASTM A572, ASTM A514, and ASTM A588. These grades vary in their mechanical properties and are specifically designed to meet different construction requirements, such as strength, durability, or corrosion resistance.
- Q: How is special steel used in toolmaking?
- Special steel is used in toolmaking because of its exceptional properties such as high hardness, toughness, and wear resistance. It is utilized to manufacture various types of tools including drills, cutting tools, dies, and molds. The superior properties of special steel enable these tools to withstand high temperatures, resist deformation, and maintain sharpness for extended periods. Additionally, special steel can be heat treated to achieve specific characteristics, making it an ideal choice for toolmaking applications.
Send your message to us
Grade AISI 4340 CNBM Forged Steel Round Bar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 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
Similar products
Hot products
Hot Searches
Related keywords
