SCM440 Forged or Hot Rolled Sae 4140 Alloy Steel Round Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 123 m.t.
- Supply Capability:
- 2005544 m.t./month
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Description of steel round bar:
1. Commodity: Round steel bar
3. Technical: Hot rolling
2. Length: Min. 5.8meter, according to requirement.
3. Diameter: 16mm-250mm
5. Packing: In Bundle or according to your requirements.
Festures of steel round bar:
1.Dia 80-800mm Length:2000-13000mm or as required
2.Technique:Forged
3.Delivery Time:45 days
Specifications of steel round bar:
1. Commodity: Round steel bar
3. Technical: Hot rolling
2. Length: Min. 5.8meter, according to requirement.
3. Diameter: 16mm-250mm
Images of steel round bar:
FAQ:
1. What is your main market?
We mainly export to Asia such as Japan,Korea,Thailand and North America and Middle East.
2. How long is the lead time?
Delivery time: 45 days after order confirmed.
3. What payment term do you accept?
Payment: T/T or L/C at sight.
4.Why do you choose to cooperate with us?
We have over10 years experience in this business so we are able to provide you the high quality products with the best price.
- Q: What are the different types of steel round bar coatings used in the oil and gas industry?
- Various coatings are commonly utilized in the oil and gas industry to enhance the durability and corrosion resistance of steel round bars. These coatings are essential for protecting the steel from the harsh conditions faced in oil and gas production, transportation, and refining processes. 1. Galvanized Coating: To enhance corrosion resistance, a layer of zinc is applied to the steel round bar through galvanization. This coating effectively safeguards the steel against moisture, chemicals, and exposure to the elements. Galvanized coatings find extensive usage in pipelines, offshore platforms, and storage tanks within the oil and gas industry. 2. Fusion Bonded Epoxy (FBE) Coating: FBE coating involves applying a thermosetting epoxy powder coating to the steel round bar using electrostatic spray. The coating is then fused with heat to form a robust, long-lasting, and corrosion-resistant layer. FBE coatings are widely employed in pipelines, valves, and fittings, providing excellent protection against corrosion, abrasion, and chemicals. 3. Polyethylene (PE) Coating: The application of a polyethylene layer to the steel round bar through extrusion or wrapping methods is known as PE coating. This coating is commonly utilized in oil and gas industry pipelines due to its exceptional resistance to corrosion, chemicals, and impact. Additionally, PE coatings are renowned for their flexibility, enabling the coated bars to withstand ground movement and temperature fluctuations. 4. Polypropylene (PP) Coating: Similar to PE coating, PP coating employs polypropylene instead. PP coatings offer comparable benefits to PE coatings, including corrosion resistance, chemical resistance, and flexibility. They are frequently employed in pipelines within the oil and gas industry, particularly in areas with higher temperatures or where chemical resistance is crucial. 5. Zinc-Nickel Coating: Zinc-nickel coatings involve electroplating a layer of zinc-nickel alloy onto the steel round bar. This coating provides outstanding corrosion protection, even in demanding environments such as offshore installations or high-salinity areas. Zinc-nickel coatings excel in both corrosion and abrasion resistance, making them highly suitable for diverse oil and gas applications. Overall, the utilization of these various steel round bar coatings plays a vital role in preserving the integrity and longevity of equipment and infrastructure in the oil and gas industry. They ensure that the steel bars can endure the challenging conditions encountered during exploration, production, and transportation, thereby reducing maintenance requirements and enhancing safety and reliability.
- Q: Can steel round bars be used for making agricultural equipment or machinery?
- Yes, steel round bars can be used for making agricultural equipment or machinery. Steel is a commonly used material in the construction of such equipment due to its high strength, durability, and resistance to wear and tear. Steel round bars can be used to manufacture components like axles, shafts, handles, and structural supports, providing the necessary strength and reliability required for agricultural applications.
- Q: Can steel round bars be machined using CNC equipment?
- Yes, steel round bars can be machined using CNC (Computer Numerical Control) equipment. CNC machines are capable of performing a wide range of operations on various materials, including steel round bars. These machines use computer programs to control the movement of the cutting tools, allowing for precise and accurate machining of the steel bars. CNC equipment can perform operations such as turning, milling, drilling, and threading on steel round bars, resulting in the desired shape, dimensions, and surface finish. Furthermore, CNC machines offer high repeatability, consistency, and efficiency, making them an ideal choice for machining steel round bars in industries such as automotive, aerospace, construction, and manufacturing.
- Q: Can steel round bars be coated or plated?
- Steel round bars can indeed be coated or plated, which is a prevalent method employed to augment the functionality and visual appeal of steel products. Numerous choices exist for coating and plating, including zinc plating, chrome plating, nickel plating, and powder coating. These procedures offer added defense against corrosion, enhance durability, and create the desired aesthetics for the steel. The selection of the appropriate coating or plating technique hinges upon the particular application and specifications of the steel round bars.
- Q: Are steel round bars suitable for use in the oil and gas industry?
- Yes, steel round bars are suitable for use in the oil and gas industry. Steel round bars are known for their strength, durability, and high resistance to corrosion, which makes them well-suited for the challenging and harsh environments encountered in the oil and gas industry. These bars are commonly used in various applications such as drilling tools, valves, pipelines, and offshore structures. The oil and gas industry involves operations in offshore rigs, refining facilities, and pipelines that are exposed to extreme temperatures, pressures, and corrosive substances. Steel round bars are capable of withstanding these conditions and maintaining their structural integrity, making them a reliable choice for critical components. Another advantage of steel round bars is their versatility. They can be easily machined, welded, and fabricated into different shapes and sizes, allowing for customization to meet specific project requirements. This flexibility is crucial in the oil and gas industry, which often demands unique and complex equipment. Furthermore, steel round bars offer excellent mechanical properties, including high tensile strength and impact resistance, which are essential for withstanding heavy loads and dynamic forces associated with oil and gas operations. Their ability to handle these loads ensures the safety and reliability of equipment and structures in the industry. In addition to their mechanical properties, steel round bars have a high resistance to corrosion, which is critical in the oil and gas industry due to the presence of corrosive substances such as hydrogen sulfide and saltwater. Corrosion resistance ensures the longevity and reliability of equipment, reducing maintenance costs and downtime. Overall, steel round bars are a suitable choice for use in the oil and gas industry due to their strength, durability, corrosion resistance, and versatility. These properties make them ideal for various applications, ensuring the safe and efficient operation of equipment and structures in this demanding industry.
- Q: Are steel round bars resistant to corrosion?
- Yes, steel round bars can be resistant to corrosion depending on the type of steel and the environment they are exposed to. Stainless steel round bars, for example, contain chromium which forms a thin passive layer on the surface that protects against corrosion. This layer is self-repairing and provides excellent resistance to corrosion in many environments, including moisture, chemicals, and saltwater. However, carbon steel round bars are not inherently corrosion-resistant and may require additional protective coatings or treatments to prevent corrosion. Therefore, it is important to consider the specific type of steel and the intended application when determining the corrosion resistance of steel round bars.
- Q: What's the difference between round steel and screw steel? Which is cheaper than steel on the market these days?
- Round steel and thread steel are mainly made of different materials and purposes, so prices are different, and they need to be chosen according to actual needs.
- Q: Can steel round bars be used for making exhaust systems?
- Yes, steel round bars can be used for making exhaust systems. Steel is a popular material choice for exhaust systems due to its durability, heat resistance, and ability to withstand high temperatures and corrosive environments. Steel round bars can be used to fabricate the pipes, mufflers, and other components of an exhaust system. They can be easily welded and shaped into the desired form, allowing for customization and flexibility in design. Additionally, steel round bars can provide the necessary strength and structural integrity required for an efficient and long-lasting exhaust system.
- Q: What is the composition of steel round bars?
- Steel round bars are primarily composed of iron and carbon, with trace amounts of other elements such as manganese, silicon, sulfur, and phosphorus. The main component, iron, provides the strength and structural integrity of the steel bar. The carbon content plays a crucial role in determining the hardness and strength of the bar, with higher carbon content resulting in a harder and stronger material. Manganese contributes to the overall strength and toughness of the steel, while silicon helps improve its resistance to oxidation and scaling at high temperatures. Sulfur and phosphorus are impurities that are typically kept at low levels to prevent detrimental effects on the material's mechanical properties. Overall, the composition of steel round bars is carefully controlled to achieve the desired strength, durability, and other specific properties required for various applications.
- Q: What are the advantages of using precipitation-strengthened steel round bars?
- Using precipitation-strengthened steel round bars in various applications offers several benefits. Firstly, these bars possess improved mechanical properties, making them stronger and more durable compared to regular steel bars. Through the heat treatment process of precipitation hardening, fine particles form within the steel structure. These particles act as obstacles to dislocation movement, resulting in enhanced strength and hardness. Secondly, the increased strength of precipitation-strengthened steel round bars allows for material usage reduction while maintaining the desired level of structural integrity. This leads to cost savings in terms of raw materials and transportation, making it an economical choice in the construction and manufacturing industries. Additionally, precipitation-strengthened steel round bars exhibit excellent corrosion resistance properties. The formation of fine particles during precipitation hardening creates a dense and uniform microstructure, effectively blocking the movement of corrosive agents. This corrosion resistance makes these bars ideal for applications in harsh environments or industries where exposure to corrosive substances is common. Another advantage of using precipitation-strengthened steel round bars is their ability to withstand high temperatures. The fine particles within the steel structure contribute to improved thermal stability, enabling these bars to maintain their strength and hardness even under elevated temperatures. This makes them suitable for applications involving high-temperature operations, such as in the aerospace and automotive industries. Furthermore, precipitation-strengthened steel round bars possess superior fatigue resistance, making them advantageous in applications that require repetitive or cyclic loading. The precipitation hardening process enhances the material's resistance to fatigue failure, allowing it to withstand prolonged stress without significant deformation or failure. This makes these bars suitable for use in structures subjected to dynamic or fluctuating loads, such as bridges, cranes, and machinery components. In conclusion, precipitation-strengthened steel round bars offer enhanced mechanical properties, reduced material usage, excellent corrosion resistance, high-temperature stability, and superior fatigue resistance. These advantages make them the preferred choice for a wide range of applications, spanning from construction and manufacturing to the aerospace and automotive industries.
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SCM440 Forged or Hot Rolled Sae 4140 Alloy Steel Round Bars
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 123 m.t.
- Supply Capability:
- 2005544 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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