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:Are steel round bars suitable for use in the manufacturing of springs?: Indeed, steel round bars prove to be a fitting choice when it comes to the fabrication of springs. The widespread use of steel round bars in spring production is owed to their exceptional sturdiness and longevity. The bar's circular form facilitates effortless bending and molding into diverse spring patterns. Moreover, steel boasts exceptional elasticity, rendering it an optimal material for springs that must absorb and retain mechanical energy. Furthermore, steel round bars exhibit commendable resistance to corrosion, an essential attribute for springs subjected to environmental elements. On the whole, steel round bars possess the essential qualities requisite for the creation of superior and dependable springs.

Q:Are steel round bars resistant to abrasion?: Yes, steel round bars are generally resistant to abrasion. Steel is known for its high strength and durability, making it resistant to wear and tear caused by friction or rubbing against other surfaces. However, the level of abrasion resistance can vary depending on the specific type of steel and its composition. Certain grades of steel, such as hardened or alloy steels, are specifically designed to have enhanced resistance to abrasion. These steels undergo processes like heat treatment or alloying to increase their hardness and improve their ability to withstand abrasion. Overall, steel round bars are a reliable choice for applications where abrasion resistance is important.

Q:What are the different types of steel round bar surface treatments for improved hardness?: There are several different types of steel round bar surface treatments that can be used to improve hardness. Some common treatments include case hardening, nitriding, and induction hardening. Case hardening involves adding carbon to the surface of the steel to create a hardened outer layer, while nitriding involves introducing nitrogen to form a hard nitride layer. Induction hardening uses heat to quickly heat and cool the surface of the steel, creating a hardened layer. These treatments can significantly enhance the hardness and wear resistance of steel round bars.

Q:What is the tolerance for length in steel round bars?: The tolerance for length in steel round bars typically depends on the specific industry standards and requirements. However, in general, the tolerance for length in steel round bars can range from +/- 1/8 inch to +/- 1/4 inch, or even tighter tolerances depending on the application and specifications outlined by the manufacturer or customer.

Q:What are the advantages of using wear-resistant steel round bars?: Wear-resistant steel round bars offer numerous benefits: 1. Enhanced durability: These round bars are specifically designed to withstand high levels of abrasion and wear. They have a high hardness level, which makes them resistant to surface damage caused by friction, impact, or scraping. As a result, their lifespan is extended, reducing the need for frequent replacements. 2. Increased strength: Wear-resistant steel round bars possess exceptional strength properties, allowing them to withstand heavy loads and extreme conditions. This makes them suitable for various applications in industries like mining, construction, manufacturing, and transportation, where strength and resilience are crucial. 3. Improved safety: By using wear-resistant steel round bars, a safer working environment is ensured. Their high resistance to wear minimizes the risk of accidents and injuries caused by equipment failures or structural damage. This is particularly important in industries involving heavy machinery, tools, or structures. 4. Cost-effectiveness: Although wear-resistant steel round bars may have a higher initial cost compared to regular steel bars, their extended lifespan and reduced maintenance requirements make them a cost-effective choice in the long run. The reduced need for replacements and repairs leads to lower downtime, increased productivity, and ultimately, decreased operational costs. 5. Versatility: Wear-resistant steel round bars can be used in a variety of applications due to their versatility. They can be easily machined, welded, or formed into different shapes and sizes to meet specific requirements. This flexibility allows for their use in various industries and applications, making them an ideal choice for many projects. To sum up, the advantages of using wear-resistant steel round bars include enhanced durability, increased strength, improved safety, cost-effectiveness, and versatility. These properties make them a reliable and efficient option for applications where wear and tear are significant concerns.

Q:What are the advantages of using nickel-lead alloy steel round bars?: There are several advantages of using nickel-lead alloy steel round bars: 1. Enhanced corrosion resistance: Nickel-lead alloy steel round bars exhibit excellent corrosion resistance, making them suitable for use in various industries, especially those dealing with harsh environments or corrosive substances. This property ensures the longevity and durability of the bars, reducing the need for frequent replacements. 2. Superior strength and toughness: The inclusion of nickel and lead in the alloy composition enhances the strength and toughness of the steel round bars. This makes them highly resistant to deformation, cracking, and wear, even under high-stress conditions. As a result, these bars can withstand heavy loads and impacts, making them ideal for applications that require robust and reliable materials. 3. Improved machinability: Nickel-lead alloy steel round bars possess excellent machinability, allowing for easy cutting, drilling, and shaping during fabrication processes. The alloy's composition enables efficient chip evacuation and reduces tool wear, resulting in increased productivity and cost-effectiveness in manufacturing operations. 4. Thermal stability: Nickel-lead alloy steel round bars exhibit excellent thermal stability, making them suitable for applications that involve high temperatures or extreme thermal cycling. These bars can withstand thermal expansion and contraction without experiencing significant dimensional changes, ensuring dimensional accuracy and structural integrity over time. 5. Low coefficient of friction: The addition of lead to the alloy composition contributes to a low coefficient of friction, reducing friction and wear between the bars and other surfaces. This property is particularly valuable in applications where minimal wear and lubrication are essential, such as in bearings or sliding components. 6. Electrical conductivity: Nickel-lead alloy steel round bars possess good electrical conductivity, making them suitable for applications that require efficient electrical current flow. This property is beneficial in electrical connectors, circuit breakers, and other electrical components, where reliable conductivity is crucial. In summary, the advantages of using nickel-lead alloy steel round bars include enhanced corrosion resistance, superior strength, improved machinability, thermal stability, low friction coefficient, and good electrical conductivity. These properties make them an excellent choice for a wide range of applications in various industries.

Q:Can steel round bars be used in the manufacturing of shafts?: Yes, steel round bars can be used in the manufacturing of shafts. Steel round bars are often used as raw materials for shaft manufacturing due to their high strength, durability, and excellent mechanical properties. The round shape of the bar allows for easier machining and forming processes, making it suitable for creating shafts of various sizes and lengths. Additionally, steel round bars can be heat treated to enhance their hardness, strength, and wear resistance, further improving their suitability for shaft applications.

Q:How are steel round bars used in the manufacturing of machinery and equipment?: Due to their inherent strength, durability, and versatility, steel round bars find extensive use in the production of machinery and equipment. These bars, typically made from carbon steel or alloy steel, are available in various diameters and lengths. One of the common applications of steel round bars is in fabricating shafts and axles, which are crucial for transmitting rotational motion and torque in machinery. These bars offer the necessary strength and stiffness to withstand the forces and stresses experienced during operation. They are often machined precisely and subsequently heat-treated to enhance their mechanical properties, such as hardness and toughness. Another significant use of steel round bars is in the manufacture of gears and sprockets. These components are essential for transmitting power and motion between different machine parts. Steel round bars are machined to form teeth or cogs that interlock, ensuring smooth and efficient operation. The high strength and wear resistance of steel enable gears and sprockets to endure heavy loads and repetitive motion without distorting or failing. Steel round bars also find application in manufacturing various machine components like bearings, couplings, and fasteners. Bearings, for example, depend on the strength and hardness of steel to support rotating or sliding shafts while minimizing friction and wear. Couplings, on the other hand, utilize steel round bars to connect different machine parts, efficiently transmitting power and motion. Steel round bars also serve as fasteners, providing a secure and dependable connection between different machine elements. Furthermore, steel round bars are frequently used in constructing machine frames and structures. Their high strength-to-weight ratio makes them ideal for providing structural support and stability. By utilizing steel round bars, manufacturers can create robust and reliable machinery and equipment capable of withstanding heavy loads, vibrations, and other challenging operating conditions. In conclusion, steel round bars play a vital role in the manufacturing of machinery and equipment. Their exceptional strength, durability, and versatility make them a favored choice for a wide range of applications. Whether it is for shafts, gears, bearings, or machine frames, steel round bars provide the necessary mechanical properties to ensure the reliable and efficient operation of machinery and equipment.

Q:What is the carbon content in steel round bars?: The amount of carbon in steel round bars varies depending on the grade and type of steel utilized, causing the carbon content in carbon steel round bars to typically range from 0.08% to 1.5%. A higher carbon content grants greater strength and hardness, albeit at the expense of weldability and ductility. The customer can specify the precise carbon content during the manufacturing process, tailoring it to their desired mechanical properties and application needs.

Q:What are the chemical composition requirements for steel round bars?: The chemical composition requirements for steel round bars vary depending on the specific grade or type of steel being used. However, in general, steel round bars are typically made from carbon steel, alloy steel, or stainless steel. Carbon steel round bars typically have a chemical composition consisting of iron and carbon, with trace amounts of other elements such as manganese, phosphorus, sulfur, and silicon. The carbon content in carbon steel round bars can range from 0.08% to 2.1%, depending on the desired strength and hardness. These bars are commonly used in construction, manufacturing, and general-purpose applications. Alloy steel round bars contain additional alloying elements such as chromium, nickel, molybdenum, vanadium, and manganese. These elements are added to enhance the mechanical properties of the steel, such as improved strength, hardness, and resistance to wear and corrosion. The specific chemical composition requirements for alloy steel round bars can vary significantly depending on the desired properties and the specific alloy being used. Stainless steel round bars are composed primarily of iron, chromium, and nickel, along with smaller amounts of other elements such as carbon, manganese, and molybdenum. The high chromium content in stainless steel provides excellent corrosion resistance, while the nickel content enhances its strength and ductility. The chemical composition requirements for stainless steel round bars are typically specified by international standards such as ASTM or EN, which outline the minimum and maximum allowable percentages of each element. In summary, the chemical composition requirements for steel round bars depend on the specific grade or type of steel being used, with carbon steel, alloy steel, and stainless steel being the most common types. The composition of these bars is carefully controlled to achieve the desired mechanical properties and performance characteristics for various applications.

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