Carbon Steel C30/C35/C40/C45/C50/C55/C58 Round Bars

Carbon Steel C30/C35/C40/C45/C50/C55/C58 Round Bars System 1

Carbon Steel C30/C35/C40/C45/C50/C55/C58 Round Bars System 2

Carbon Steel C30/C35/C40/C45/C50/C55/C58 Round Bars System 3

Carbon Steel C30/C35/C40/C45/C50/C55/C58 Round Bars System 4

Carbon Steel C30/C35/C40/C45/C50/C55/C58 Round Bars

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 120000 m.t./month

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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)

Company Information

CNBM International Corporation is the most important trading platform of CNBM group.

Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.

FAQ

1, Your advantages?

professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3, Factory or Trading Company?

CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

30% TT as deposit and 70% before delivery.

Irrevocable L/C at sight.

5, Trading Terms?

EXW, FOB, CIF, FFR, CNF

6, After-sale Service?

CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

For any problem, please kindly contact us at any your convenient time.

We'll reply you in our first priority within 24 hours.

Packaging & Delivery

1, Packaging: seaworthy package or as required

2, Delivery: 35-45 days or based on quantity

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: How are steel round bars used in the manufacturing of heat exchangers?: Due to their unique properties, steel round bars are commonly utilized in the production of heat exchangers. These devices are responsible for transferring heat between multiple fluids, and the inclusion of steel round bars is essential to their construction. One primary application of steel round bars in heat exchangers is in the manufacturing of the tubes. These tubes are responsible for carrying the fluids that require heating or cooling. Steel round bars are frequently chosen as the base material for these tubes due to their exceptional heat transfer properties and high strength. The round shape of the bars facilitates the easy fabrication of the tubes, ensuring a secure and snug fit. Moreover, steel round bars are utilized in the construction of the headers and tube sheets in heat exchangers. The headers enable the fluid to enter and exit the heat exchanger, while the tube sheets hold the tubes firmly in place. These components must possess durability and high strength to withstand the pressure and temperature differentials encountered during heat exchange. Steel round bars provide the necessary stability and strength to ensure the proper operation of the heat exchanger. Furthermore, steel round bars are also employed in the manufacturing of the support structures or frames of heat exchangers. These structures offer stability and support to the various components of the heat exchanger, ensuring proper alignment and positioning. Steel round bars exhibit excellent structural integrity and can endure heavy loads, making them an ideal choice for this purpose. In summary, steel round bars play a vital role in the production of heat exchangers. Their high strength, excellent heat transfer properties, and durability make them well-suited for fabricating the tubes, headers, tube sheets, and support structures of heat exchangers. By incorporating steel round bars, manufacturers can guarantee the efficiency, effectiveness, and longevity of heat exchangers in numerous industries, including power generation, chemical processing, and HVAC systems.

Q: Can steel round bars be used in the defense industry?: Yes, steel round bars can be used in the defense industry. Steel is a highly durable and strong material, making it suitable for various applications in the defense sector. Steel round bars can be used to manufacture components such as gun barrels, armor plates, missile casings, and other critical defense equipment. The robustness of steel ensures that these components can withstand high-stress environments and provide the necessary protection and support required in defense applications. Additionally, steel round bars can be machined, welded, or heat-treated to meet the specific requirements of different defense systems, making them an ideal material choice for the industry.

Q: How do you prevent steel round bars from rusting during storage?: In order to prevent rusting of steel round bars during storage, various measures can be taken: 1. Ensure the round bars are stored in a dry environment: Moisture is a major factor in causing rust. It is important to have a dry storage area that is free from leaks or humidity. Consider using dehumidifiers or moisture-absorbing products to maintain dryness. 2. Apply a rust inhibitor: Coating the steel round bars with a rust inhibitor creates a protective layer that prevents rust formation by blocking moisture and oxygen. Rust inhibitors are available in different forms, such as sprays, oils, or waxes. Follow the manufacturer's instructions when applying the inhibitor. 3. Store the round bars in a climate-controlled area: Fluctuations in temperature can result in condensation, which can lead to rust formation. Storing the round bars in a climate-controlled area with a consistent temperature helps minimize the risk of rusting. 4. Package the round bars properly: Use suitable packaging materials to prevent direct contact between the steel round bars and moisture or other contaminants. Consider wrapping them in plastic or using packaging materials that are resistant to moisture. 5. Regularly inspect and maintain: Periodically check the stored round bars for any signs of rust or damage. If any rust spots are found, clean them promptly and reapply a rust inhibitor to prevent further corrosion. Remember, prevention is crucial in avoiding rust on steel round bars during storage. By implementing these measures, you can greatly reduce the risk of rust formation and maintain the quality of the round bars.

Q: What are the advantages of using nickel-titanium alloy steel round bars?: There are several advantages of using nickel-titanium alloy steel round bars. Firstly, this alloy offers high strength and excellent corrosion resistance, making it suitable for various applications in industries such as aerospace, automotive, and medical. Additionally, nickel-titanium alloy steel has shape memory properties, allowing it to return to its original shape after deformation, making it ideal for applications requiring repeated bending or twisting. Furthermore, this alloy exhibits superelasticity, meaning it can withstand large amounts of strain without permanent deformation, providing enhanced durability and longevity. Overall, the unique combination of strength, corrosion resistance, shape memory, and superelasticity makes nickel-titanium alloy steel round bars a versatile and advantageous material choice.

Q: What are the common industries that use steel round bars?: Due to their strength, durability, and versatility, steel round bars are widely utilized across various industries. Construction, manufacturing, automotive, aerospace, energy, and oil and gas industries heavily rely on these bars for their unique properties and applications. In the construction industry, steel round bars play a vital role in creating structural frameworks like beams, columns, and trusses. They provide the necessary support and stability for buildings, bridges, and other infrastructures. Additionally, steel round bars reinforce concrete structures, guaranteeing their structural integrity. The manufacturing industry extensively employs steel round bars in the production of machinery, equipment, and tools. These bars are often machined, forged, or heat-treated to manufacture components such as shafts, gears, fasteners, and bearings. Their high tensile strength and resistance to wear and tear make them ideal for withstanding heavy loads and harsh operating conditions. In the automotive sector, steel round bars are essential in manufacturing crucial vehicle components like axles, crankshafts, camshafts, and suspension systems. These bars provide the required strength and durability for safe and reliable transportation. The aerospace industry heavily relies on steel round bars for manufacturing aircraft components, including landing gears, engine parts, and structural elements. Steel round bars ensure the safety and performance of aircraft due to their high strength-to-weight ratio, allowing for lighter aircraft without compromising strength. In the energy industry, steel round bars are used in constructing turbines, generators, and transmission towers for power generation and transmission. The robustness and corrosion resistance of steel make it suitable for extreme temperatures and harsh environments. Lastly, the oil and gas industry extensively utilizes steel round bars for drilling equipment, pipe fittings, valves, and other critical components. These bars are specially designed to withstand high-pressure and corrosive environments, making them vital for oil and gas exploration, extraction, and transportation. To summarize, steel round bars are widely used across various industries for their strength, durability, and versatility. They are crucial in ensuring the safety, reliability, and efficiency of numerous industrial processes in construction, manufacturing, automotive, aerospace, energy, and oil and gas sectors.

Q: What is the difference between a cold-drawn and a centerless ground steel round bar?: Both cold-drawn and centerless ground steel round bars are distinct types of steel bars that have undergone different manufacturing processes, leading to varied characteristics and properties. To produce cold-drawn steel round bars, a hot-rolled or annealed steel bar is pulled through a die, decreasing its diameter and increasing its length. This procedure enhances the steel's mechanical properties, making it stronger, more precise in dimensions, and possessing a smoother surface finish. Cold-drawn bars exhibit superior tensile strength, improved surface finish, and tighter dimensional tolerances compared to hot-rolled bars. They are frequently employed in applications that necessitate precision and strength, such as automotive components, machinery parts, and construction materials. On the contrary, centerless ground steel round bars are created by passing a cylindrical steel bar through a grinding machine without the need for centers or support. This grinding process eliminates surface imperfections and deviations in diameter, resulting in a precise and smooth finish. Centerless ground bars offer exceptional dimensional accuracy, surface finish, and roundness. They are commonly utilized in applications where precision and tight tolerances are crucial, such as in the production of bearings, shafts, and hydraulic cylinders. In conclusion, the primary distinction between a cold-drawn steel round bar and a centerless ground steel round bar lies in the manufacturing process and the resultant properties. Cold-drawn bars are formed by pulling the steel through a die, leading to enhanced mechanical properties, tighter tolerances, and a smoother surface finish. Centerless ground bars are produced by grinding the steel to enhance dimensional accuracy, roundness, and surface finish. Both types of bars possess their own advantages and are suitable for different applications based on the required precision, strength, and surface finish.

Q: Are steel round bars susceptible to rust?: It is true that rust can occur on steel round bars. Rust is the outcome of a chemical reaction involving iron and oxygen in the presence of moisture. Due to the fact that steel is primarily composed of iron, it can rust if it is exposed to air and moisture. Nevertheless, the likelihood of rust can be decreased by taking specific precautionary measures. To establish a barrier between the steel and the surrounding environment, steel round bars can be coated with protective layers such as paint, oil, or galvanized coatings. This effectively prevents or delays the initiation of rust. In order to minimize the risk of rust formation on steel round bars, it is advisable to regularly maintain them by cleaning and reapplying protective coatings.

Q: Can steel round bars be used in the production of musical instruments?: Certainly! Musical instruments can indeed be produced using steel round bars. Steel, being a versatile material, possesses a wide array of desirable attributes including strength, durability, and resonance. Although wood is typically the go-to material for crafting musical instruments, steel can be utilized in specific instances to augment the instrument's sound and performance. For instance, steel round bars can be implemented in the fabrication of various components such as keys or valves for wind instruments like saxophones or trumpets. Moreover, these bars can be employed to construct the internal support systems in instruments like guitars or cellos, thereby providing stability and enriching tonal qualities. Furthermore, steel round bars can be employed in the construction of percussion instruments such as steel drums or xylophones, where their robust and resonant attributes are highly sought after. On the whole, although wood remains the more prevalent choice in the realm of musical instrument production, steel can certainly be employed in specific scenarios to attain desired sound characteristics and structural integrity.

Q: Are steel round bars suitable for high-stress applications?: Yes, steel round bars are suitable for high-stress applications. Steel round bars possess high tensile strength, durability, and resistance to deformation, making them ideal for withstanding heavy loads and intense pressure in various industries such as construction, manufacturing, and engineering. The robust nature of steel round bars ensures their suitability for high-stress applications.

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