AISI 1008 Carbon Steel Round Bars System 1

AISI 1008 Carbon Steel Round Bars System 2

AISI 1008 Carbon Steel Round Bars System 3

AISI 1008 Carbon Steel Round Bars System 4

AISI 1008 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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Description	1008 steel rould bar
Material	ASTM /AISI	1005,1006,1008,1010,1015,1020,1025,1030,1035, 1040,1045,1050,1055,1060,1065,1070,1080,1084
DIN	Ck10,Ck15,Ck22,Ck25,Ck30,Ck35,Ck40,Ck45,Ck50, 30Mn4,40Mn4
Standard	GB/T799,ASTM A29,A36,A108,A321,A575,BS970,DIN1652,JIS G4051
Section shape	Round Other shape such as square,hexagonal,flat,angle
Surface	Black, galvanized,grinded,
Specifications	Round bar	Diameter: 12mm~650mm
Angle bar	Size: 3mm20mm20mm~12mm800mm800mm
Square/ bar	Size: 4mm4mm~100mm100mm
Flat bar	Thickness: 2mm~100mm
Width:10mm~500mm
Hexagonal	Size: 4mm~800mm
Length	Standard 6m,9m,12m or as required.
Trade terms	Payment terms	T/T,L/C,Western Union
Price terms	FOB,CIF,CFR,EXW
Applications	Steel round bar is widely used for all general fabrication and repairs in industrial maintenance, agricultural implements, transportation equipment, ornamental work frame work, braces, supports, shafts,axels,etc. Hot rolled Steel round bars have a slightly grain textured finish.

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 is the maximum hardness achievable for steel round bars?: The maximum hardness achievable for steel round bars depends on various factors such as the specific type of steel used, the heat treatment process applied, and the desired properties. However, in general, the maximum hardness achievable for steel round bars is typically around 60-65 HRC (Rockwell hardness scale) for high carbon steels, and can be even higher for certain specialty alloys or through additional surface treatments.

Q:Can steel round bars be used in marine environments?: Steel round bars can indeed be utilized in marine settings. Nonetheless, it is crucial to select the appropriate steel variant that is specifically engineered for marine purposes. Among the various options, stainless steel stands out as the most frequently utilized due to its ability to resist corrosion. This is primarily due to its high chromium content, which facilitates the formation of a protective oxide layer on the steel's surface, thereby safeguarding it against corrosion caused by saltwater and other harsh elements. Moreover, stainless steel round bars are renowned for their robustness and durability, making them well-suited for an array of marine applications such as ship construction, offshore structures, and marine equipment. To ensure the enduring performance of steel round bars in marine environments, regular maintenance and proper care are imperative.

Q:What are the advantages of using steel round bars over other materials?: There are several advantages of using steel round bars over other materials. Firstly, steel round bars offer exceptional strength and durability, making them ideal for high-stress applications. Secondly, steel has excellent heat resistance, making it suitable for use in extreme temperature environments. Additionally, steel round bars exhibit excellent machinability, allowing for easy fabrication and customization. Moreover, steel is highly resistant to corrosion, ensuring longevity and reduced maintenance costs. Lastly, steel round bars are readily available in various sizes and grades, offering versatility for a wide range of construction and industrial projects.

Q:Can steel round bars be used in structural applications?: Yes, steel round bars can be used in structural applications. They are commonly used in construction projects for their strength and durability. Steel round bars provide structural support and reinforcement in various applications such as beams, columns, and braces.

Q:Can steel round bars be coated?: Yes, steel round bars can be coated. Coating steel round bars provides several benefits, including improved corrosion resistance, enhanced durability, and increased aesthetic appeal. The most common types of coatings for steel round bars include galvanized coatings, epoxy coatings, and powder coatings. Galvanized coatings involve the application of a layer of zinc to the surface of the steel, which provides excellent corrosion protection. Epoxy coatings are typically used for industrial applications as they offer superior chemical resistance and can withstand harsh environments. Powder coatings involve the application of a dry powder electrostatically, which is then cured under heat to form a hard, protective layer. These coatings can be applied to steel round bars to protect them from rust and other forms of corrosion, making them suitable for a wide range of applications in various industries such as construction, manufacturing, and automotive.

Q:What are the different bending methods for steel round bars?: There are several different bending methods that can be used for steel round bars, depending on the desired outcome and the specific application. Some of the most common bending methods for steel round bars include: 1. Cold Bending: This method involves bending the steel round bars at room temperature without the use of heat. Cold bending is typically performed using specialized bending machines or tools that apply force to the bar to achieve the desired shape. 2. Heat Bending: Heat bending involves heating the steel round bar to a specific temperature to make it more malleable and easier to bend. Once heated, the bar is bent using specialized tools or fixtures. Heat bending is often used for more intricate or precise bends that cannot be achieved through cold bending alone. 3. Induction Bending: Induction bending is a process that uses an induction coil to heat the steel round bar locally, allowing it to be bent gradually and smoothly. This method is commonly used for large diameter or thick-walled round bars, as it provides greater control over the bending process and minimizes distortion or damage to the material. 4. Roll Bending: Roll bending involves passing the steel round bar between a set of rollers that gradually bend it into the desired shape. This method is often used for larger diameter or longer round bars, as the rollers provide continuous support and ensure consistent bending across the entire length of the bar. 5. Mandrel Bending: Mandrel bending is a technique that uses a mandrel, or a rod inserted inside the steel round bar, to support the inner walls during the bending process. By using a mandrel, the bar maintains its shape and prevents the formation of wrinkles or deformations on the inside of the bend. Each bending method has its own advantages and limitations, and the choice of method will depend on factors such as the size and thickness of the round bar, the required bend radius, and the desired quality of the final product. It is important to consult with experts or professionals in the field to determine the most suitable bending method for a specific steel round bar application.

Q:Can steel round bars be used in the production of agricultural machinery?: Yes, steel round bars can be used in the production of agricultural machinery. Steel round bars are commonly used in the manufacturing of various components and parts for agricultural machinery due to their strength, durability, and versatility. These bars can be used to construct essential parts such as axles, shafts, gears, and brackets that are required for the operation of agricultural machinery. Additionally, steel round bars can be easily machined and welded to meet specific design requirements, making them a suitable choice for agricultural machinery manufacturers.

Q:What is the difference between carbon steel and alloy steel round bars?: Carbon steel and alloy steel round bars are both widely used in various industries, but they differ in their composition and properties. Carbon steel round bars are primarily made up of iron and carbon, with trace amounts of other elements. The carbon content typically ranges from 0.05% to 2.0%, depending on the grade. These bars are known for their strength and hardness, making them suitable for applications that require high durability and wear resistance. Carbon steel round bars also have good machinability, meaning they can be easily shaped and formed into desired configurations. However, they may have limited corrosion resistance and may require additional protective coatings in corrosive environments. On the other hand, alloy steel round bars are made by adding various alloying elements to carbon steel. These alloying elements can include elements such as manganese, chromium, nickel, and molybdenum, among others. The addition of these elements enhances the properties of the steel, such as increased strength, toughness, and resistance to wear and corrosion. Alloy steel round bars are often chosen for applications that require specific properties, such as high temperature resistance, high strength-to-weight ratio, or improved machinability. In summary, the main difference between carbon steel and alloy steel round bars lies in their composition and resulting properties. Carbon steel round bars are primarily made up of iron and carbon, offering good strength and hardness, but may have limited corrosion resistance. Alloy steel round bars, on the other hand, have added alloying elements that enhance specific properties, such as increased strength, toughness, and corrosion resistance. The choice between carbon steel and alloy steel round bars will depend on the specific requirements of the application.

Q:What is the difference between a polished and a hot rolled steel round bar?: The manufacturing processes and resulting surface finishes distinguish polished steel round bars from hot rolled ones. To produce hot rolled steel round bars, a steel billet or ingot is heated to high temperatures and then shaped into a round bar through rolling. This method yields a surface finish that is rough and uneven, with mill scale and imperfections. Hot rolled bars are typically utilized in applications where surface finish is not crucial, such as structural components, machinery parts, and construction materials. In contrast, polished steel round bars undergo additional steps to achieve a smooth and glossy surface finish. Following the hot rolling process, these bars undergo various grinding and polishing techniques to eliminate mill scale, surface imperfections, and achieve a consistent finish. The result is a refined and visually appealing surface, suitable for applications where appearance matters, such as decorative items, furniture, and architectural components. Aside from surface finish, the mechanical properties of the two types of steel round bars can also differ. Hot rolled bars tend to possess a rougher surface and may exhibit residual stresses, while polished bars feature a smoother surface and reduced internal stresses. However, the overall mechanical properties, including strength and hardness, are predominantly determined by the grade and composition of the steel used, rather than the manufacturing process or surface finish. In conclusion, the discrepancy between polished and hot rolled steel round bars lies in their surface finish. Hot rolled bars have a rough and uneven surface with mill scale and imperfections, while polished bars undergo further processing for a smooth and glossy finish. The choice between the two depends on the specific application and desired appearance of the final product.

Q:Can steel round bars be hardened through heat treatment?: Yes, steel round bars can be hardened through heat treatment. Heat treatment is a process that involves heating the steel to a specific temperature and then rapidly cooling it to achieve the desired hardness and strength. There are different heat treatment methods, such as quenching and tempering, which can be used to harden steel round bars. Quenching involves heating the steel to a critical temperature and then rapidly cooling it in a liquid medium, such as oil or water, to achieve maximum hardness. Tempering, on the other hand, involves reheating the quenched steel to a lower temperature to reduce brittleness and improve toughness while maintaining a desirable hardness level. Heat treatment can significantly improve the mechanical properties of steel round bars, making them suitable for various applications that require high strength and hardness.

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