ASTM 1080 Carbon Steel Round Bars System 1

ASTM 1080 Carbon Steel Round Bars System 2

ASTM 1080 Carbon Steel Round Bars System 3

ASTM 1080 Carbon Steel Round Bars System 4

ASTM 1080 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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Standard	C	Si	Mn	Cr	Ni	P/S ≤
DIN	≤0.15	≤1.0	≤2.0	18	9	0.03
GB	≤0.15	≤1.0	≤2.0	18	9	0.03

Material	Grade	Material	Grade
8#-10#	φ16-290	65Mn	φ40-300
15#	φ14-150	45Mn2	φ18-75
20#	φ8-480	60Si2Mn	φ16-150
35#	φ8-480	20CrMnTi	φ10-480
45#	φ6.5-480	20CrMnTiB	φ16-75
Q235B	φ6.5-180	GCr15	φ16-400
40Cr	φ8-480	ML35	φ8-150
20Cr	φ10-480	T8-T13	φ8-480
42CrMo	φ12-480	Cr12	φ16-300
35CrMo	φ12-480	Cr12MoV	φ16-300
20CrMo	φ12-300	3Cr2W8V	φ16-300
38CrMoAL	φ20-300	45Cr50Cr	φ20-300
5CrMnMo	φ20-450	20CrMnMo	φ20-300
16Mn(Q345B)	φ14-365	40Mn2	φ28-60
50Mn	φ40-200	35Cr	φ55
15CrMo	φ21 φ24 φ75	15Mn	φ32φ170
25#	φ16-280	40CrMnMo	φ80φ160
YF45MnV	φ28-80	20CrMnMo	φ20-300
30#	φ6.5-480	27SiMn	φ20-350
30CrMo	φ28	Crwmn	φ20-300
30CrMnTi	φ16-300	H13(4Cr5MoSiVi)	φ20-300
60#	φ210 φ260	40CrNiMo	φ20-400

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:Can steel round bars be welded to other materials?: Yes, steel round bars can be welded to other materials. The process typically involves using compatible welding techniques and materials, such as specific filler metals, to achieve a strong and durable bond between the steel round bar and the other material.

Q:How do you calculate the strength of a steel round bar?: To calculate the strength of a steel round bar, several factors need to be considered. The primary factor is the material's yield strength, which represents the stress level at which the steel begins to deform permanently. This value is typically provided by the manufacturer or can be found in engineering handbooks. Next, the cross-sectional area of the round bar needs to be determined. This can be done by measuring the diameter of the bar and using it to calculate the area using the formula A = πr^2, where A is the cross-sectional area and r is the radius. Once the cross-sectional area is known, the ultimate tensile strength (UTS) can be calculated using the formula UTS = Yield Strength / Safety Factor. The safety factor is a numerical value that accounts for uncertainties and potential variations in the material's strength. It is typically specified by the design requirements or industry standards. Finally, the maximum load that the steel round bar can withstand before failure can be determined by multiplying the ultimate tensile strength by the cross-sectional area. This value represents the strength of the round bar and can be used to assess its suitability for a particular application. It is important to note that other factors such as the bar's length, shape, and any additional treatments or modifications can also affect its strength. Therefore, consulting with a structural engineer or referring to relevant design codes and standards is recommended to ensure accurate calculations and safe application of steel round bars.

Q:Can steel round bars be used in high temperature applications?: Yes, steel round bars can be used in high temperature applications. Steel is known for its excellent strength and durability, even at high temperatures. However, the specific type of steel and its composition should be considered to ensure it is suitable for the particular high temperature environment and application. Additionally, proper heat treatment and other measures may be necessary to enhance the steel's resistance to high temperatures and prevent any potential degradation or failure.

Q:What is the typical hardness of a steel round bar?: The typical hardness of a steel round bar can vary depending on the specific grade and heat treatment it has undergone. However, in general, steel round bars have a hardness ranging from 100 to 300 on the Brinell hardness scale. This scale measures the resistance of a material to indentation and is commonly used to assess the hardness of metals. It is important to note that different applications may require different levels of hardness, and steel round bars can be customized to meet specific requirements through various heat treatment processes such as quenching and tempering.

Q:How do you calculate the maximum allowable stress for a steel round bar?: To calculate the maximum stress that a steel round bar can bear without deforming or failing, several considerations must be made. 1. Material properties must be determined: Steel round bars have various grades, each with its own distinct material properties. These properties, such as ultimate tensile strength (UTS), yield strength, and elongation percentage, can usually be found in material specification documents or reference books. 2. The design factor should be identified: The design factor, also referred to as the safety factor or factor of safety, is a multiplier applied to the maximum stress to ensure the safety and capacity of the structure or component when subjected to unexpected or dynamic loads. The design factor can differ depending on the application and industry standards, typically ranging between 1.5 and 4. 3. The allowable stress needs to be calculated: The allowable stress is determined by dividing the yield strength of the material by the design factor. This calculation ensures that the structure or component remains within a safe stress range. The formula can be expressed as: Allowable Stress = Yield Strength / Design Factor. For instance, if a steel round bar has a yield strength of 300 MPa and a design factor of 2, the maximum allowable stress would be 150 MPa (300 MPa / 2). This implies that the steel round bar can safely endure a maximum stress of 150 MPa before the risk of deformation or failure arises. It is vital to note that the maximum allowable stress is just one aspect of designing a structure or component. Other factors, including fatigue, environmental conditions, and load distribution, should also be considered to ensure a secure and dependable design. Seeking guidance from relevant engineering codes, standards, and professionals is highly recommended when calculating the maximum allowable stress for a specific application.

Q:What is the difference between a smooth and a precision ground steel round bar?: A smooth steel round bar has a surface that is free from any roughness or irregularities, providing a polished and sleek appearance. On the other hand, a precision ground steel round bar undergoes a specialized grinding process to achieve tight tolerances and a high degree of accuracy in its dimensions. This precision grinding ensures that the bar has consistent diameter and smoothness throughout its length, making it suitable for applications that require precise measurements and tight fits.

Q:Three - grade thread Phi 10 steel can replace a grade Phi 12 round bar? Which elder knows, trouble pointing.: According to the substitution of steel bars, one method, equal strength substitution, equal area substitution and equal root substitution can be obtained by substitution. Three grades of thread Phi 10, steel replaced by a grade Phi 12 of the round steel, I think it may appear: does not meet the minimum reinforcement ratio requirements and reinforcement construction regulations. Don't change it for the best. But must change, must pass the design.

Q:What are the different types of steel round bars used in the manufacturing of bearings?: There are several different types of steel round bars used in the manufacturing of bearings. The specific type of steel used will depend on various factors, such as the application, load capacity, and desired performance characteristics of the bearing. One commonly used type of steel for manufacturing bearings is through-hardened steel. This type of steel is heat-treated to achieve a uniform hardness throughout the entire bar. Through-hardened steel round bars provide excellent strength and wear resistance, making them suitable for high-load bearing applications. Another type of steel that is frequently used in bearing manufacturing is case-hardened steel. This steel is hardened only on the surface, while the core remains relatively soft. Case-hardened steel round bars offer a combination of high surface hardness for wear resistance and a softer core for improved toughness and impact resistance. Stainless steel is also utilized in the production of bearings, particularly in applications that require corrosion resistance or operate in harsh environments. Stainless steel round bars have excellent resistance to rust and corrosion, making them ideal for use in marine or chemical industries. Furthermore, alloy steel round bars are commonly employed in bearing manufacturing. These steels are made by adding various alloying elements, such as chromium, molybdenum, or nickel, to enhance specific properties like hardness, toughness, or heat resistance. Alloy steel round bars are often used in specialized bearing applications that require exceptional performance under high temperatures or extreme conditions. In summary, the different types of steel round bars used in bearing manufacturing include through-hardened steel, case-hardened steel, stainless steel, and alloy steel. Each type offers unique properties and characteristics that make them suitable for specific bearing applications.

Q:What are the advantages of using cobalt-alloy steel round bars?: There are several advantages to using cobalt-alloy steel round bars in various industries and applications. Firstly, cobalt-alloy steel has exceptional strength and hardness, making it highly resistant to wear, corrosion, and high temperatures. This makes it suitable for demanding environments where other materials would fail or degrade quickly. Secondly, cobalt-alloy steel has excellent dimensional stability, meaning it maintains its shape and size even under extreme conditions. This makes it ideal for applications that require precise tolerances and minimal deformation, such as in the aerospace and automotive industries. Additionally, cobalt-alloy steel has excellent heat resistance, allowing it to retain its mechanical properties even at elevated temperatures. This makes it valuable in applications that involve high-speed machining, cutting tools, and turbine components. Moreover, cobalt-alloy steel round bars can be easily machined and fabricated, allowing for customization and versatility in various applications. Their high machinability and weldability make them suitable for use in manufacturing processes, such as forging, casting, and machining. Furthermore, cobalt-alloy steel round bars have excellent fatigue resistance, ensuring long-lasting performance and durability. This makes them suitable for applications that involve repetitive stress or cyclic loading, such as shafts, springs, and fasteners. Lastly, cobalt-alloy steel is known for its biocompatibility, making it suitable for medical and dental applications. It is commonly used in orthopedic implants, surgical tools, and dental instruments due to its corrosion resistance and biocompatibility properties. In summary, the advantages of using cobalt-alloy steel round bars include exceptional strength, hardness, and dimensional stability, as well as heat resistance, machinability, fatigue resistance, and biocompatibility. These qualities make them valuable in a wide range of industries and applications, offering reliability, durability, and performance.

Q:Can steel round bars be machined?: Yes, steel round bars can be machined. Machining is a process that involves the removal of material from a workpiece to create the desired shape, size, or finish. Steel round bars are commonly machined to create various components, such as shafts, bolts, and fasteners. Machining processes such as turning, milling, drilling, and grinding can be used to shape and cut the steel round bars. However, the machinability of steel can vary depending on factors such as the composition and hardness of the steel, cutting tools, and machining parameters. It is important to use appropriate machining techniques and tools to ensure accurate and efficient results while machining steel round bars.

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