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
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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 different methods of surface lapping for special steel?
- There are several methods of surface lapping for special steel, including abrasive lapping, diamond lapping, and chemical lapping. Abrasive lapping involves using an abrasive material, such as silicon carbide or aluminum oxide, to remove small amounts of material from the surface of the steel. Diamond lapping, on the other hand, utilizes diamond particles to achieve a high level of precision and smoothness. Chemical lapping involves using a chemical compound that reacts with the steel surface, selectively removing material to achieve the desired finish. Each method has its own advantages and is chosen based on the specific requirements of the steel and the desired outcome.
- Q: How does special steel perform in abrasive environments?
- Special steel is specifically designed to perform exceptionally well in abrasive environments. Its unique composition and manufacturing process make it highly resistant to wear, corrosion, and impact caused by abrasive materials. It maintains its strength, durability, and performance even under extreme conditions, making it an ideal choice for applications such as mining, construction, and manufacturing industries where abrasive environments are prevalent.
- Q: How does special steel contribute to the energy sector?
- The energy sector heavily relies on special steel, which plays a vital role in improving efficiency, reliability, and safety. Firstly, special steel is essential for constructing pipelines and storage tanks in the oil and gas industry. These components must withstand high pressures, extreme temperatures, and corrosive surroundings, and special steel provides the necessary strength and resistance to ensure their integrity and prevent any leakage. Additionally, special steel is utilized in power generation plants to manufacture turbine blades and other crucial parts. These plants require materials that can endure the high temperatures and pressures generated by fossil fuel combustion or nuclear energy use. Special steel's heat-resistant properties make it the perfect choice for these applications, enhancing the overall efficiency and longevity of power plants. Furthermore, special steel is vital for producing wind turbines, which are rapidly becoming a significant source of renewable energy. The blades, tower structures, and gearboxes of wind turbines undergo significant stress and strain, and special steel provides the strength and durability needed to withstand these conditions. By incorporating special steel, wind turbines can operate reliably and efficiently, contributing to the growth of clean energy. Moreover, special steel is indispensable for infrastructure in the energy sector, such as transmission towers and substations. These structures must support heavy loads and endure extreme weather conditions while maintaining electrical conductivity. Special steel's high strength and corrosion resistance make it an ideal material for these applications, ensuring the reliable transmission and distribution of electricity. In summary, special steel is a crucial element in the energy sector, providing the necessary strength, durability, and resistance to extreme conditions. Its use in pipelines, power generation plants, wind turbines, and infrastructure improves the efficiency, reliability, and safety of the energy sector, facilitating the production and distribution of both conventional and renewable energy sources.
- Q: What are the different methods for improving the impact resistance of special steel?
- There are several methods available for improving the impact resistance of special steel. These methods can be broadly categorized into heat treatment, alloying, and surface treatments. 1. Heat Treatment: One of the most common methods for improving impact resistance is heat treatment. This involves subjecting the steel to controlled heating and cooling processes to alter its microstructure. The two main heat treatment processes used for improving impact resistance are tempering and quenching. Tempering involves heating the steel to a specific temperature and then cooling it slowly. This process helps to relieve internal stresses and improve toughness. Quenching, on the other hand, involves rapidly cooling the steel after heating it to a high temperature. This process results in a hardened microstructure, enhancing the impact resistance. 2. Alloying: Another method for improving the impact resistance of special steel is through alloying. By adding certain elements to the base steel, the properties can be enhanced. For example, adding elements such as manganese, nickel, or chromium can improve the toughness and impact resistance of the steel. These alloying elements alter the steel's microstructure, resulting in increased strength and resistance to deformation. 3. Surface Treatments: Surface treatments are used to improve the impact resistance of special steel by providing a protective layer on the surface. One commonly used surface treatment is case hardening, which involves introducing carbon or nitrogen into the surface layer of the steel. This process creates a hard outer layer while retaining a tough core, enhancing the impact resistance. Another surface treatment method is shot peening, which involves bombarding the steel surface with small metal or ceramic particles under high pressure. This process induces compressive stresses in the surface layer, improving the fatigue resistance and impact resistance of the steel. In conclusion, the different methods for improving the impact resistance of special steel include heat treatment, alloying, and surface treatments. These methods can be employed individually or in combination to enhance the mechanical properties of the steel, making it more resistant to impact and deformation.
- Q: How does special steel contribute to the renewable energy sector?
- Special steel plays a crucial role in the renewable energy sector by enabling the development and efficient operation of various clean energy technologies. It is used in the manufacturing of wind turbines, solar panels, and energy storage systems, among others. The high strength and corrosion resistance properties of special steel ensure the durability and reliability of these renewable energy components, ultimately helping to enhance their performance and lifespan. Additionally, special steel's versatility allows for the design of complex and lightweight structures, enabling more efficient energy production and reducing overall material consumption.
- Q: How does heat-resistant steel perform in high-temperature applications?
- Heat-resistant steel performs exceptionally well in high-temperature applications. It exhibits remarkable strength and stability, allowing it to withstand extreme heat without losing its structural integrity or mechanical properties. This type of steel maintains its resistance to oxidation, corrosion, and creep, making it an ideal choice for various industries such as aerospace, power generation, and petrochemical. Its ability to retain its strength and shape under extreme heat conditions makes it a reliable material for applications where high temperatures are involved.
- Q: How is HSLA steel used in the construction industry?
- HSLA steel, or High-Strength Low-Alloy steel, is widely used in the construction industry due to its superior strength and durability. It is commonly utilized in the construction of bridges, buildings, and other infrastructure projects. HSLA steel's high tensile strength allows for the creation of lighter and more efficient structures, reducing material costs and environmental impact. Additionally, its resistance to corrosion and atmospheric conditions makes it suitable for outdoor applications, ensuring the longevity of the constructed assets.
- Q: What are the different methods of surface laser cladding for special steel?
- There are several methods of surface laser cladding for special steel, including powder-based laser cladding, wire-based laser cladding, and direct laser cladding. Powder-based laser cladding involves melting a powder material onto the surface of the steel using a laser beam. Wire-based laser cladding uses a wire feed system to deliver the material to be cladded onto the surface, which is then melted by the laser. Direct laser cladding directly melts the material onto the steel surface without the need for additional feed systems, making it a more efficient and precise method.
- Q: What are the recycling options for special steel?
- There are several recycling options available for special steel. One option is to take it to a local scrap yard or metal recycling facility. These facilities have the necessary equipment to process and recycle special steel. They will typically pay you for the steel based on its weight and current market value. Another option is to contact a specialized recycling company that deals specifically with special steel. These companies have expertise in handling and recycling this type of steel and can ensure that it is properly processed and reused. Additionally, some steel manufacturers and distributors have their own recycling programs in place. They may offer take-back programs where they will collect and recycle special steel from their customers. This can be a convenient option as it eliminates the need to find a separate recycling facility. It is important to note that special steel may require special handling and processing due to its unique properties. Therefore, it is recommended to consult with a professional or contact the recycling facility or company beforehand to ensure that they can properly handle and recycle the specific type of special steel you have.
- Q: What are the properties of boron steel?
- Boron steel, also known as boron-alloyed steel, possesses several key properties. It is renowned for its exceptional strength, hardness, and wear resistance. Boron steel exhibits excellent heat treatment response, allowing for improved mechanical properties such as increased hardness and tensile strength. Moreover, it offers good weldability and formability, making it suitable for various fabrication processes. Additionally, boron steel demonstrates high fatigue strength, enabling it to withstand repetitive loading without failure. Overall, these properties make boron steel a valuable material for applications requiring high strength and durability, such as automotive components and construction equipment.
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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
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