Hot Rolled Round Steel C45 Bars System 1

Hot Rolled Round Steel C45 Bars System 2

Hot Rolled Round Steel C45 Bars System 3

Hot Rolled Round Steel C45 Bars System 4

Hot Rolled Round Steel C45 Bars

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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C	Si	Mn	P	S	Cr	Ni	Cu	Al
0.4~0.5	0.2~0.3	0.6~0.7	≤0.016	≤0.008	≤0.023	≤0.014	0.018	≤0.005

GB	DIN	JIS	AISI
45#	1.1191	S45C	1045

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)

Carbon Steel	Mold bottom, Plastic mold, Construction machinery parts Automobile parts, Security grills, Screens, Construction
Bearing Steel	Aerospace, Navigation, Nuclear energy, Chemical industry Electronic information, Petrochemical, Instrument and meter Transportation
Cr-Mo Steel	Mechanism & Fasteners gear, Stressed components for vehicles Engines and machines, Parts of larger cross-section
Gear Steel	All kinds of gears, Statically and dynamically stressed component for vehicles Engines and machine, Larger cross-section parts, Crankshafts

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 many meters is the minimum loading surface of galvanized steel wire for grounding grid?: Galvanized round bar and galvanized flat steel are of different shapes and different uses.Galvanized round steel refers to the cross section of round solid steel. The specifications are expressed in millimeters of diameter, such as 50, which means a round bar of 50 millimeters in diameter. Round steel is not the same as other steel bars. Round steel is round in shape and has no ribs and no ribs, which makes the bonding strength between round bar and concrete very small.

Q:How do you calculate the weight of a steel round bar based on its density and dimensions?: To calculate the weight of a steel round bar, you need to know its density and dimensions. The formula to calculate weight is W = V x D, where W represents weight, V represents volume, and D represents density. First, you need to find the volume of the round bar. The formula to calculate the volume of a cylinder is V = πr^2h, where V represents volume, π is a constant (approximately 3.14159), r represents the radius of the round bar, and h represents the height or length of the round bar. If you have the diameter of the round bar instead of the radius, you can divide the diameter by 2 to find the radius. Once you have the radius, you can substitute it into the formula along with the height of the round bar to calculate the volume. Next, you need to know the density of the steel. The density of steel is typically measured in grams per cubic centimeter (g/cm^3) or kilograms per cubic meter (kg/m^3). Make sure the units of both the density and volume are consistent. If the density is given in g/cm^3, convert the volume from cm^3 to m^3 by dividing it by 1,000,000. Finally, multiply the volume by the density to calculate the weight. If the density is in kg/m^3, the weight will be in kilograms. If the density is in g/cm^3, the weight will be in grams. You can convert the weight to other units by using appropriate conversion factors. Remember to double-check your calculations and ensure that all units are consistent throughout the calculation.

Q:Can steel round bars be used in the construction equipment industry?: In the construction equipment industry, it is common to use steel round bars. These bars are well-known for their strength, durability, and versatility, which makes them suitable for various applications in construction equipment. They can be utilized to produce components like axles, shafts, pins, and fasteners. The robustness of steel round bars guarantees that construction equipment can withstand heavy loads and harsh working conditions. Moreover, steel round bars are easily machinable and weldable, enabling manufacturers to create intricate and customized designs for construction equipment. All in all, due to their exceptional mechanical properties and ability to enhance equipment performance and longevity, steel round bars are extensively employed in the construction equipment industry.

Q:Can steel round bars be hardened or tempered?: Yes, steel round bars can be hardened or tempered.

Q:What are the advantages of using aluminum-magnesium alloy steel round bars?: Aluminum-magnesium alloy steel round bars offer several benefits: 1. Lightweight: With its lower density compared to traditional steel, aluminum-magnesium alloy steel is a lightweight material. This is advantageous in industries like aerospace and automotive where weight reduction is crucial. It improves fuel efficiency and increases payload capacity. 2. Corrosion resistance: Aluminum-magnesium alloy steel has excellent resistance to corrosion. The addition of magnesium enhances its ability to withstand harsh environments, including moisture, chemicals, and saltwater. It is ideal for marine applications and areas with high humidity or corrosive atmospheres. 3. High strength-to-weight ratio: Despite being lightweight, aluminum-magnesium alloy steel is highly strong. It offers a superior strength-to-weight ratio compared to other materials, allowing for the construction of durable structures. This is valuable in applications like construction where both strength and weight are important factors. 4. Excellent machinability: Aluminum-magnesium alloy steel is easy to machine, making it suitable for a variety of fabrication processes. It can be cut, drilled, and welded with ease, enabling efficient manufacturing and assembly. This saves time and costs while allowing for complex designs and customization. 5. Thermal conductivity: Aluminum-magnesium alloy steel has excellent thermal conductivity, facilitating efficient heat transfer. This property is valuable in applications such as heat exchangers, cooling systems, and electrical conductors. It prevents overheating and improves overall performance. 6. Recyclability: Aluminum-magnesium alloy steel is highly recyclable, making it an environmentally friendly choice. It can be melted down and reused, reducing the need for raw materials and minimizing waste. Recycling aluminum-magnesium alloy steel requires less energy compared to primary production, making it a sustainable option. In conclusion, the advantages of aluminum-magnesium alloy steel round bars make it a versatile and cost-effective material for various applications. Its lightweight nature, corrosion resistance, high strength-to-weight ratio, excellent machinability, thermal conductivity, and recyclability make it a preferred choice in industries where these properties are essential.

Q:Can steel round bars be used in the production of sporting goods?: Yes, steel round bars can be used in the production of sporting goods. Steel is a durable and strong material that can provide stability and support for various sporting equipment such as weights, bars for weightlifting, poles for pole vaulting, or components for bicycles and golf clubs.

Q:What are the advantages of using free-cutting steel round bars?: Free-cutting steel round bars boast numerous advantages. Firstly, their impeccable machinability sets them apart. These bars are specifically designed for easy machining, allowing for smooth and efficient cutting, drilling, and shaping processes. This makes them highly suitable for applications that demand precision and intricate detailing, such as the production of automotive components, machinery parts, and precision instruments. Secondly, free-cutting steel round bars offer enhanced productivity and reduced manufacturing costs. Thanks to their superior machinability, these bars significantly reduce the time and effort required for machining, resulting in higher production rates and increased efficiency. Additionally, the reduced wear and tear on cutting tools lengthens their lifespan, thereby reducing tool replacement costs and overall manufacturing expenses. Moreover, free-cutting steel round bars excel in chip control. During machining, the chips produced can impact the final product's surface finish and dimensional accuracy. However, free-cutting steel round bars are specifically formulated to generate small, manageable chips that are easily expelled from the cutting zone. This not only enhances the quality of machined parts but also minimizes the risk of chip clogging or chip-related issues. Another advantage of utilizing free-cutting steel round bars lies in their superb surface finish. These bars are often manufactured with a fine grain structure and minimal impurities, resulting in a smooth and visually appealing surface finish. This becomes particularly crucial for applications where aesthetics and appearance play a significant role, such as in architectural designs or decorative purposes. Lastly, free-cutting steel round bars offer exceptional mechanical properties. They are typically produced with controlled chemical compositions and undergo precise heat treatments, ensuring consistent and reliable mechanical performance. This renders them suitable for demanding applications that necessitate high strength, toughness, and durability. In conclusion, the benefits of employing free-cutting steel round bars encompass exceptional machinability, improved productivity, reduced manufacturing costs, superior chip control, enhanced surface finish, and reliable mechanical properties. These advantages establish free-cutting steel round bars as the preferred choice in various industries and applications.

Q:What is the maximum manganese content allowed for steel round bars?: The permissible manganese content for steel round bars may differ based on the grade or standard being adhered to. Generally, the manganese content in steel round bars is typically restricted to a maximum of approximately 1.65% by weight. This limitation is due to the adverse effects that higher manganese levels can have on the mechanical properties and weldability of the steel. Nevertheless, it is crucial to acknowledge that various industries or applications may establish their own specific requirements or allowances for manganese content in steel round bars. Hence, it is always advisable to refer to the relevant specifications or standards to ascertain the maximum manganese content permissible for a specific grade of steel round bars.

Q:What are the different types of steel round bar coatings used in the automotive industry?: There are several different types of steel round bar coatings that are commonly used in the automotive industry. These coatings are applied to the steel bars to enhance their durability, corrosion resistance, and overall performance. 1. Galvanized Coating: This is one of the most widely used coatings for steel round bars in the automotive industry. Galvanized coating involves applying a layer of zinc to the surface of the steel bar. This coating provides excellent corrosion resistance, protecting the steel from rust and other forms of degradation. 2. Epoxy Coating: Epoxy coatings are often used in automotive applications that require high chemical resistance. This type of coating provides a protective barrier against chemicals, moisture, and other corrosive substances. Epoxy coatings also have excellent adhesion properties, ensuring long-lasting performance. 3. Powder Coating: Powder coating is a popular choice for steel round bars in the automotive industry due to its durability and aesthetic appeal. This coating involves applying a dry powder to the surface of the steel bar, which is then heated to create a tough, protective layer. Powder coatings come in a wide range of colors and finishes, allowing for customization and branding opportunities. 4. Ceramic Coating: Ceramic coatings offer exceptional heat resistance, making them ideal for automotive applications that involve high temperatures. This type of coating provides a protective barrier that prevents heat damage and improves the overall lifespan of the steel round bars. 5. Phosphate Coating: Phosphate coatings are often used as a pre-treatment before applying other types of coatings. This coating improves the adhesion of subsequent coatings and provides additional corrosion resistance. Phosphate coatings also enhance the lubricity of the steel bar, reducing friction and wear. These are just a few examples of the different types of steel round bar coatings used in the automotive industry. Each coating offers unique benefits and is chosen based on the specific requirements of the application. Overall, these coatings play a crucial role in improving the performance and longevity of steel round bars in automotive applications.

Q:How do you store steel round bars to prevent damage?: In order to store steel round bars and prevent damage, it is important to follow several crucial steps. Firstly, it is essential to keep the bars in a dry and well-ventilated area to avoid the buildup of moisture, which can lead to rusting. Additionally, moisture can cause the bars to become brittle and weaken over time. Next, it is recommended to store the round bars horizontally instead of vertically. This will prevent warping or bending caused by the weight of the bars pressing down on each other. If vertical storage is necessary, it is vital to use appropriate racks or supports that evenly distribute the weight. Furthermore, it is important to avoid stacking the bars too high, as excessive weight can cause deformation or collapse. If stacking cannot be avoided, sturdy supports should be used and the weight should be evenly distributed across the stack. Moreover, it is advisable to separate different sizes or types of steel round bars to prevent scratching or damage. This can be achieved by using separators or dividers to create distinct compartments for each type of bar. Lastly, regular inspection of the stored round bars for any signs of rust, corrosion, or damage is necessary. If any issues are detected, prompt measures should be taken to address them. This may involve applying rust inhibitors, cleaning the bars, or seeking assistance from professionals. By adhering to these storage guidelines, the steel round bars can be effectively protected from damage, ensuring their longevity and quality.

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