12L14 Steel Free Cutting Steel Round Bar

12L14 Steel Free Cutting Steel Round Bar System 1

12L14 Steel Free Cutting Steel Round Bar System 2

12L14 Steel Free Cutting Steel Round Bar System 3

12L14 Steel Free Cutting Steel Round Bar System 4

12L14 Steel Free Cutting Steel Round Bar

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 100000 m.t./month

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Specifications

1. Material:12L14
2. Size: 0.2mm-16mm
3. Stable quality
4. Competitive price

We own the eight profassion engineers of high strength steel wire,and five QC to keep the products good quality so that in oversea marketing .we have been getting good reputation for over 10 years.

Next we introduce the products as follows:

1. Steel grade: 12L14; SUM24L.

2. Diameter: 0.2mm-16mm.

3. Application: machinery, mechanical parts, instruments, auto parts and so on.

4. Tolerance standard: h8; h9, h10; h11.

Chemical composition& Tolerance

Grade	JIS	C	Si	Mn	P	S	Pb
12L14	SUM24L	0.15max	0.15-0.35	0.85-1.15	0.04-0.09	0.26-0.35	0.10-0.35
	S25CL	0.22-0.28	0.15-0.35	0.30-0.6	0.03max	0.035max	0.10-0.35
	S45CL	0.42-0.48	0.15-0.35	0.60-0.9	0.03max	0.035max	0.10-0.35
1215	SUM23	0.09max		0.75-1.05	0.04-0.09	0.26-0.35
	SUN25	0.15max		0.90-1.40	0.07-0.12	0.30-0.40
Tolerance
Range	H8	H9(Round bar)	H10(Hexagonal bar)	H11	H12
<3mm	0-0.014	0-0.025	0-0.040	0-0.060	0-0.10
3-6mm	0-0.018	0-0.030	0-0.048	0-0.075	0-0.12
6-10mm	0-0.022	0-0.036	0-0.058	0-0.090	0-0.15
10-18mm	0-0.022	0-0.043	0-0.070	0-0.11	0-0.18
18-30mm	0-0.033	0-0.052	0-0.084	0-0.13	0-0.21
30-50mm	0-0.039	0-0.062	0-0.100	0-0.16	0-0.25

12L14 Steel Free Cutting Steel Round Bar

Q:How do steel round bars compare to ceramic round bars?: Steel round bars are generally stronger and more durable compared to ceramic round bars. Steel has a higher tensile strength and can withstand higher temperatures, making it suitable for heavy-duty applications. On the other hand, ceramic round bars are generally lighter, offer better corrosion resistance, and have higher electrical insulation properties. The choice between steel and ceramic round bars depends on the specific application requirements and desired properties.

Q:Are steel round bars suitable for use in the oil and gas industry?: Yes, steel round bars are suitable for use in the oil and gas industry. Steel round bars are known for their strength, durability, and high resistance to corrosion, which makes them well-suited for the challenging and harsh environments encountered in the oil and gas industry. These bars are commonly used in various applications such as drilling tools, valves, pipelines, and offshore structures. The oil and gas industry involves operations in offshore rigs, refining facilities, and pipelines that are exposed to extreme temperatures, pressures, and corrosive substances. Steel round bars are capable of withstanding these conditions and maintaining their structural integrity, making them a reliable choice for critical components. Another advantage of steel round bars is their versatility. They can be easily machined, welded, and fabricated into different shapes and sizes, allowing for customization to meet specific project requirements. This flexibility is crucial in the oil and gas industry, which often demands unique and complex equipment. Furthermore, steel round bars offer excellent mechanical properties, including high tensile strength and impact resistance, which are essential for withstanding heavy loads and dynamic forces associated with oil and gas operations. Their ability to handle these loads ensures the safety and reliability of equipment and structures in the industry. In addition to their mechanical properties, steel round bars have a high resistance to corrosion, which is critical in the oil and gas industry due to the presence of corrosive substances such as hydrogen sulfide and saltwater. Corrosion resistance ensures the longevity and reliability of equipment, reducing maintenance costs and downtime. Overall, steel round bars are a suitable choice for use in the oil and gas industry due to their strength, durability, corrosion resistance, and versatility. These properties make them ideal for various applications, ensuring the safe and efficient operation of equipment and structures in this demanding industry.

Q:What is the difference between a bright and a black steel round bar?: The appearance and surface finish are the main factors that differentiate a bright steel round bar from a black steel round bar. A bright steel round bar, also referred to as a bright drawn or turned bar, possesses a sleek and glossy surface. This is accomplished through a process known as cold drawing, wherein the steel bar is pulled through a die to eliminate any flaws and create a consistent shape. The outcome is a highly polished and reflective surface that is aesthetically pleasing. Conversely, a black steel round bar features a dark, rough, and non-reflective surface. This is due to the fact that it does not undergo the same cold drawing process as a bright steel bar. The black surface is typically a result of the scale that forms on the steel during the manufacturing process, which remains intact. In terms of properties, both bright and black steel round bars are composed of the same material, typically carbon steel. Thus, their mechanical properties such as strength, hardness, and toughness are generally similar. However, the manufacturing process of the bright steel bar aids in enhancing its surface quality and dimensional accuracy in comparison to the black steel bar. Ultimately, the choice between a bright and a black steel round bar depends on the desired aesthetic appearance and the specific requirements of the application. Bright steel bars are commonly used in decorative applications where a polished and visually appealing finish is desired. On the other hand, black steel bars are often utilized in structural applications where surface appearance is less important but strength and durability are crucial.

Q:What is the maximum weight that can be lifted using a steel round bar as a lifting rod?: The lifting capacity of a steel round bar depends on several factors, including its diameter, length, material composition, and lifting technique. Different steel round bars have different load-bearing capacities based on their dimensions and grade. Engineering principles and specific formulas can be used to calculate the load-bearing capacity of a steel bar based on its material and geometry. To determine the maximum weight that can be lifted with a particular steel round bar, it is important to consider its ultimate tensile strength, yield strength, and factor of safety. The ultimate tensile strength represents the maximum stress the material can handle before failure, while the yield strength is the stress at which permanent deformation occurs. The factor of safety is a design parameter that takes uncertainties into account and ensures structural integrity. To obtain accurate and reliable information about the load-bearing capacity of a specific steel round bar, it is crucial to consult engineering references, standards, or professionals. They can provide the necessary calculations, considering the bar's diameter, length, material properties, intended lifting application, and safety requirements. In conclusion, the maximum weight that can be lifted using a steel round bar as a lifting rod depends on various factors and cannot be determined without considering the specific characteristics of the bar and the lifting scenario. Consulting engineering resources or experts is essential to ensure safe and accurate calculations.

Q:What are the limitations of using steel round bars?: There are several limitations associated with using steel round bars in various applications. One limitation is their susceptibility to corrosion. Steel round bars, especially those made of carbon steel, are prone to rusting when exposed to moisture or certain harsh environments. This can significantly impact their structural integrity and lifespan. Another limitation is their weight. Steel is a heavy material, and round bars can be particularly cumbersome to handle and transport, especially in large quantities. This can make the installation process more challenging and increase the overall cost of a project. Additionally, steel round bars may not be suitable for applications requiring high levels of flexibility or bending. Due to their rigid nature, they can be difficult to shape or mold into intricate designs. This limitation may restrict their use in certain industries or architectural designs that demand more versatile materials. Another factor to consider is the cost of steel round bars. Depending on the grade and quality of the steel, as well as market conditions, the price of steel round bars can fluctuate significantly. This can pose a financial limitation for projects with tight budgets or when the cost of raw materials is a critical factor. Lastly, steel round bars may not be suitable for applications requiring high resistance to extreme temperatures. While steel has good thermal conductivity, certain temperature ranges can affect its structural properties, leading to potential weaknesses or deformations. Overall, while steel round bars are widely used and offer many advantages, it is essential to consider their limitations such as susceptibility to corrosion, weight, limited flexibility, cost, and temperature sensitivity when selecting materials for specific applications.

Q:What are the different grades of alloy steel round bars?: There are several different grades of alloy steel round bars, including but not limited to, 4140, 4340, 8620, and 52100. Each grade offers specific properties and characteristics that make them suitable for different applications and industries.

Q:Which is stronger, steel pipe or round steel? Which is good at bending?: Of resistance to shearing, of course, of high round steel, generally used with steel tubes (light weight and material saving) for transmitting torque

Q:What are the advantages of using boron-alloy steel round bars?: Using boron-alloy steel round bars in various applications offers several advantages. Firstly, compared to traditional carbon steel, boron-alloy steel has significantly higher strength. This increased strength enables the construction of lightweight and durable structures, reducing material costs and improving overall efficiency. Additionally, boron-alloy steel round bars exhibit excellent hardenability. This means they can be heat-treated to achieve desired properties such as increased hardness and wear resistance. This makes them ideal for demanding applications in industries like automotive and construction, where high strength and durability are necessary. Another advantage of boron-alloy steel round bars is their enhanced weldability. They can be easily welded without sacrificing their mechanical properties, allowing for seamless integration into various fabrication processes. This saves time and effort during assembly and ensures the structural integrity of the final product. Furthermore, boron-alloy steel round bars offer excellent resistance to abrasion and corrosion. This makes them suitable for use in harsh environments or applications where exposure to chemicals or moisture is common. The extended lifespan of the material reduces the need for frequent repairs or replacements, resulting in cost savings and improved productivity. Lastly, boron-alloy steel round bars are readily available and cost-effective compared to other high-strength steel alternatives. Their wide availability makes them a viable option for a range of applications, from manufacturing machinery to constructing infrastructure. In summary, the benefits of using boron-alloy steel round bars include higher strength and durability, improved hardenability, enhanced weldability, resistance to abrasion and corrosion, and cost-effectiveness. These advantages make them an excellent choice for various industries that require lightweight, strong, and long-lasting materials.

Q:What are the different types of steel round bar surface finishes used in the marine industry?: In the marine industry, there are various types of steel round bar surface finishes used. These include polished, satin, brushed, and blasted finishes. Each finish offers different levels of smoothness, texture, and corrosion resistance, allowing for suitable applications in marine environments.

Q:Can steel round bars be hardened through heat treatment?: Steel round bars can indeed be hardened by undergoing heat treatment. This process entails heating the steel to a specific temperature and then swiftly cooling it to achieve the desired level of hardness and strength. Various heat treatment techniques, such as quenching and tempering, can be employed to harden steel round bars. In quenching, the steel is heated to a critical temperature and then rapidly cooled in a liquid medium, such as oil or water, to attain maximum hardness. On the other hand, tempering involves reheating the quenched steel to a lower temperature in order to reduce brittleness and enhance toughness, while still maintaining the desired hardness level. By subjecting steel round bars to heat treatment, their mechanical properties can be significantly improved, making them suitable for a wide range of applications that demand high levels of strength and hardness.

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