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:How do you measure the hardness of a steel round bar?: The hardness of a steel round bar can be measured using various methods, with the most common being the Rockwell hardness test. In this test, a diamond or steel ball indenter is pressed into the surface of the steel at a specific load, and the depth of the indentation is measured. The hardness value is determined based on the depth of the indentation and the applied load. Other methods like Brinell and Vickers hardness tests can also be used, depending on the specific requirements and characteristics of the steel.

Q:Can steel round bars be used for making steering linkages?: Making steering linkages is one application where steel round bars can be used. Steel round bars have a wide range of uses in automotive and mechanical engineering due to their strength, durability, and resistance to wear and tear. Steering linkages play a crucial role in a vehicle's steering system as they transmit the steering input from the steering wheel to the wheels. By using steel round bars, the necessary strength and rigidity are provided, ensuring efficient and reliable steering performance. However, it is important to consider other factors like specific design requirements, weight considerations, and desired level of flexibility or torsional properties when choosing the appropriate type and size of steel round bar for steering linkages.

Q:What are the different shapes available for steel round bars?: Steel round bars come in various shapes to cater to different applications. Some of the most common shapes include: 1. Round: The round shape is the most fundamental and widely used for steel round bars. It has a cylindrical form with a circular cross-section. Round bars find applications in multiple industries, including construction, automotive, and manufacturing. 2. Square: Square steel round bars possess a square cross-section. They are frequently employed in situations that demand additional strength and stability, such as support columns, fences, and ornamental ironwork. 3. Hexagonal: Hexagonal steel round bars feature six sides and a hexagonal cross-section. They provide a desirable combination of strength and versatility, making them popular for machine parts, fasteners, and tooling. 4. Flat: Flat steel round bars have a rectangular cross-section with a narrow width and thick height. They are commonly utilized in construction and manufacturing for purposes such as braces, brackets, and supports. 5. Half-round: Half-round steel round bars exhibit a semi-circular cross-section. They are commonly utilized in architectural and decorative applications like handrails, edging, and trim work. These represent some of the most prevalent shapes available for steel round bars. The choice of shape depends on the specific requirements of the application, including strength, stability, and aesthetics.

Q:Are steel round bars suitable for agricultural applications?: Yes, steel round bars are suitable for agricultural applications. They possess strong structural integrity, durability, and resistance to corrosion, making them ideal for various agricultural uses such as fencing, livestock handling equipment, and machinery parts. The versatility and reliability of steel round bars make them a popular choice in the agricultural industry.

Q:What is the maximum diameter of a steel round bar?: The maximum diameter of a steel round bar may differ depending on the specific grade and type of steel utilized. Nonetheless, typically, the diameter of a steel round bar ranges from 1 inch to 12 inches. On a customized order basis, larger diameters might be obtainable. To obtain precise information about the maximum diameter of a steel round bar for a particular grade and type of steel, it is crucial to consult the manufacturer or supplier.

Q:How do steel round bars compare to aluminum or steel tubing?: Steel round bars, aluminum tubing, and steel tubing all have their own unique properties and advantages. Steel round bars are known for their high strength and durability, making them suitable for applications that require heavy loads or high-stress conditions. Aluminum tubing, on the other hand, is lightweight and corrosion-resistant, making it ideal for projects that prioritize weight reduction and resistance to environmental elements. Steel tubing offers a balance between strength and weight, making it a versatile choice for various industrial applications. Ultimately, the choice between steel round bars, aluminum tubing, or steel tubing depends on the specific requirements of the project, such as load-bearing capacity, weight limitations, and environmental factors.

Q:What is the difference between hot working and cold working of steel round bars?: Hot working and cold working are two different methods used to shape and manipulate steel round bars. Hot working involves heating the steel to a high temperature, typically above its recrystallization temperature, and then shaping it through processes such as forging, rolling, or extrusion. This method helps to reduce the hardness and increase the ductility of the steel, making it easier to reshape and form into desired shapes. Hot working also helps to refine the grain structure of the steel, improving its mechanical properties. On the other hand, cold working is performed at or near room temperature without the need for heating the steel. It involves processes like cold rolling, drawing, or bending, where the steel is mechanically deformed to achieve the desired shape. Cold working increases the strength and hardness of the steel while reducing its ductility. It also causes strain hardening, which results in a finer grain structure and improved dimensional accuracy. In summary, the main difference between hot working and cold working of steel round bars lies in the temperature at which the processes are carried out and the resulting effects on the mechanical properties of the steel. Hot working is performed at high temperatures to increase ductility and refine grain structure, while cold working is done at or near room temperature to enhance strength, hardness, and dimensional accuracy.

Q:Can steel round bars be used for making bicycle frames?: Yes, steel round bars can be used for making bicycle frames. Steel is a commonly used material in bicycle frame construction due to its strength, durability, and affordability. Steel round bars can be easily shaped and welded to create the desired frame design, making them a suitable choice for bicycle manufacturing.

Q:What are the considerations for selecting the right steel grade for a round bar?: When selecting the right steel grade for a round bar, there are several considerations to be taken into account. Firstly, it is important to consider the intended application of the round bar. Different steel grades have varying properties that make them suitable for specific purposes. For example, if the round bar will be used in a high-temperature environment, a steel grade with excellent heat resistance such as stainless steel or high-alloy steel would be ideal. On the other hand, if the round bar will be used in structural applications, a steel grade with good strength and ductility, such as carbon steel, may be more appropriate. Another consideration is the desired mechanical properties of the round bar. This includes factors such as the required tensile strength, yield strength, hardness, and toughness. These properties can vary significantly between different steel grades, so it is important to choose a grade that meets the specific requirements of the application. The corrosion resistance of the steel grade is also an important consideration. If the round bar will be exposed to corrosive environments, such as in marine or chemical applications, a stainless steel grade with high resistance to corrosion would be recommended. Alternatively, if corrosion resistance is not a major concern, a carbon steel grade may be more cost-effective. Cost is another factor that should be taken into consideration when selecting a steel grade for a round bar. Different steel grades have varying costs based on factors such as availability, demand, and manufacturing processes. It is important to balance the desired properties of the round bar with the available budget to ensure cost-effectiveness. Furthermore, it is important to consider the manufacturability of the steel grade. Some steel grades may be more difficult to machine or weld, which can impact the production process and cost. It is important to choose a steel grade that is readily available and can be easily processed to meet the required specifications. Lastly, it is always advisable to consult with steel suppliers, engineers, or metallurgists to ensure that the chosen steel grade aligns with the specific requirements of the application. They can provide valuable insights and recommendations based on their expertise and experience in the industry.

Q:Can steel round bars be used in the manufacturing of machinery?: Yes, steel round bars can definitely be used in the manufacturing of machinery. Steel round bars are widely used in various industries for their strength, durability, and versatility. They are commonly used to create components such as shafts, axles, gears, and other mechanical parts that require high strength and resistance to wear and tear. Steel round bars offer excellent mechanical properties, including high tensile strength and good machinability, which make them suitable for use in heavy machinery and equipment. Additionally, steel round bars can be easily welded, forged, or machined into the desired shape, making them a preferred choice for manufacturing machinery.

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