C40 Carbon Steel Round 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	S max	P max	B
0.37-0.44	0.17-0.37	0.35-0.90	0.035	0.035	0.0008-0.003

Yield strength(MPa)	Tensile strength(MPa)	Elongation(%)	Reduction of area(%)	AKV(J)	Hardness(HB)
335	570	219	45	47	217

Sizes detalis	diameter	10-310mm
Sizes detalis	length	3-12m(canbe customerized)
Sizes tolerance	length	+/-100mm(max)
Sizes tolerance	diameter	+/-2mm(max)
Sizes tolerance	Straightness	3mm/m(max)

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: What are the advantages of using nickel-chromium-aluminum alloy steel round bars?: Nickel-chromium-aluminum alloy steel round bars offer numerous benefits. Firstly, they possess exceptional corrosion resistance, making them ideal for use in harsh environments or industries where corrosion is a concern. This resistance to corrosion prolongs the lifespan of the round bars, reducing maintenance and replacement expenses. Secondly, these round bars are known for their high strength and durability, making them suitable for applications that involve heavy loads or high temperatures. Their strength also enhances structural stability, making them a dependable option for construction projects and industrial applications. Additionally, this alloy steel demonstrates excellent thermal stability, allowing it to maintain its shape and mechanical properties even under elevated temperatures. This attribute is particularly advantageous in industries such as aerospace, automotive, and power generation, where high temperatures are prevalent. Furthermore, nickel-chromium-aluminum alloy steel round bars offer good formability and machinability, facilitating easy fabrication and customization. This versatility allows for the production of intricate shapes and designs, making them adaptable for various manufacturing processes. Lastly, this alloy steel is recognized for its resistance to oxidation and scaling at high temperatures. This makes it suitable for applications involving exposure to extreme heat or rapid temperature changes, such as in furnaces or heat exchangers. In conclusion, the benefits of utilizing nickel-chromium-aluminum alloy steel round bars include exceptional corrosion resistance, high strength and durability, thermal stability, formability, and resistance to oxidation. These qualities make it a preferred choice for a wide range of industries, ensuring reliable performance and longevity in various applications.

Q: What is the maximum length of a steel round bar?: The length of a steel round bar can vary depending on several factors, including the bar's diameter, the manufacturing capabilities of the steel supplier, and transportation restrictions. Typically, steel round bars are made in standard lengths ranging from 6 to 12 meters (20 to 40 feet). However, it is possible to create longer bars through specialized processes or by combining multiple bars using welding techniques. In certain cases, it is possible to order custom-made steel round bars that exceed standard lengths, but this would necessitate making specific arrangements with the supplier and considering logistical and handling aspects during transportation. Ultimately, the maximum length of a steel round bar is determined by practical limitations and the specific requirements of the project or application.

Q: Can steel round bars be used for making drill bits?: No, steel round bars cannot be used for making drill bits. Drill bits require specific materials and manufacturing processes to ensure their durability and effectiveness. Drill bits are typically made from high-speed steel (HSS), cobalt steel, or carbide. These materials are chosen for their hardness, heat resistance, and ability to withstand the high forces and temperatures generated during drilling. Steel round bars, on the other hand, are not specifically designed or manufactured to meet the requirements of drill bits. Using steel round bars for making drill bits would result in inferior performance, increased wear, and potential breakage during drilling operations. It is important to use drill bits that are specifically designed and manufactured for the purpose to ensure efficient and safe drilling operations.

Q: Can steel round bars be hardened or tempered?: Steel round bars have the capability to be hardened or tempered. To harden them, the steel is heated to a specific temperature and then rapidly cooled, often by quenching it in water or oil. This treatment boosts the steel's hardness and strength, making it more resistant to wear and deformation. On the other hand, tempering involves reheating the hardened steel to a lower temperature and then cooling it gradually. This process decreases the steel's brittleness and enhances its toughness and ductility. Both hardening and tempering can be applied to steel round bars to achieve desired mechanical properties for different applications.

Q: Can steel round bars be used in the production of musical instruments?: Yes, steel round bars can be used in the production of musical instruments. Steel is a versatile material that offers a range of desirable properties such as strength, durability, and resonance. While wood is commonly used in the construction of musical instruments, steel can be employed in certain applications to enhance the instrument's sound and performance. Steel round bars can be utilized in the manufacturing of various components, such as keys or valves for wind instruments like saxophones or trumpets. These bars can also be used to create the internal support structures in instruments like guitars or cellos, providing stability and enhancing tonal qualities. Additionally, steel round bars can be used in the construction of percussion instruments such as steel drums or xylophones, where their strong and resonant properties are highly desirable. Overall, while steel is not as commonly used as wood in musical instrument production, it can certainly be employed in specific cases to achieve desired sound characteristics and structural integrity.

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 multiply its density by its volume. The volume of a round bar can be calculated using the formula V = πr^2h, where r is the radius and h is the height. Once you have the volume, simply multiply it by the density of the steel to get the weight.

Q: Can steel round bars be used in the manufacturing of bearings?: No, steel round bars are not typically used in the manufacturing of bearings. Bearings require materials that have specific characteristics such as high strength, hardness, and wear resistance. Steel round bars may not possess these properties in the required magnitude. Instead, bearings are typically made from high-quality steel alloys specifically designed for bearing applications, such as bearing steel or stainless steel. These materials undergo specialized heat treatment processes to achieve the desired properties necessary for bearing manufacturing, including high load-carrying capacity, low friction, and long-lasting durability.

Q: What is the difference between a solid round bar and a hollow round bar?: A cylindrical shape, known as a solid round bar, consists of a single material, typically metal or plastic. It maintains a consistent diameter throughout its length, without any empty space inside. In contrast, a hollow round bar also has a cylindrical shape but contains a hollow space within its center. This hollow space creates a tube-like structure within the bar. The outer diameter remains constant, but the inner diameter varies depending on the design and purpose of the hollow round bar. The primary distinction between a solid round bar and a hollow round bar lies in their structural characteristics and potential uses. The solid round bar offers strength and rigidity due to its solid core, making it suitable for applications requiring robust support or load-bearing capabilities. It finds common usage in construction, manufacturing, and engineering projects where strength and durability are vital. Conversely, the hollow round bar combines strength with a lightweight design. The presence of the hollow space reduces the overall weight while maintaining structural integrity. This makes hollow round bars ideal for applications prioritizing weight reduction, such as in the aerospace, automotive, and marine industries. Furthermore, the hollow space can serve various purposes, such as facilitating the passage of fluids, wires, or other components through the bar. In conclusion, while both solid and hollow round bars possess a cylindrical shape, the presence or absence of a hollow space distinguishes them. Solid round bars offer strength and rigidity, while hollow round bars strike a balance between strength and reduced weight, with the potential for additional functionality. The choice between the two depends on the specific requirements and intended application of the bar.

Q: Are steel round bars suitable for food processing applications?: Steel round bars are commonly used in food processing applications due to their many desirable properties. Firstly, steel is highly durable and can withstand heavy usage and frequent cleaning in food processing environments. This makes it an ideal choice for equipment such as conveyor belts, mixers, and cutting tools. Additionally, steel round bars are resistant to corrosion, which is crucial in food processing applications where exposure to moisture and various chemicals is common. This resistance ensures that the equipment remains hygienic and safe for food production. Furthermore, steel round bars can be easily machined and fabricated into different shapes and sizes, making them versatile for various food processing needs. They can be used to create custom equipment or parts that meet specific requirements, ensuring efficient and effective food processing operations. Lastly, steel is a cost-effective material for food processing applications. It offers excellent value for money, as it provides long-lasting performance, requires minimal maintenance, and can be readily available in the market. However, it is important to note that not all steel round bars are suitable for food processing applications. Stainless steel is the most commonly used type of steel in this industry due to its enhanced corrosion resistance and hygienic properties. Therefore, when choosing steel round bars for food processing applications, it is crucial to ensure that they meet the necessary standards and regulations for food safety.

Q: Can steel round bars be recycled?: Yes, steel round bars can be recycled. Steel is a highly recyclable material, and the recycling process involves melting the steel bars down to be used in the production of new steel products.

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