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:What are the different types of steel round bar alloys used in aerospace applications?: The different types of steel round bar alloys used in aerospace applications include stainless steel, nickel-based alloys, and titanium alloys. These alloys are chosen for their high strength-to-weight ratios, corrosion resistance, and ability to withstand extreme temperatures and pressures encountered in aerospace environments.

Q:What are the different surface defects that can occur in steel round bars?: Steel round bars can experience various surface defects, which can be categorized based on their appearance and severity. Some common defects include: 1. Scale: During the manufacturing process, a thin layer of oxide, known as scale, can form on the steel's surface. It appears rough and flaky and can be easily removed mechanically. 2. Pits: Small depressions or craters, caused by corrosion or mechanical damage, can occur on the steel's surface. Pits weaken the steel's structural integrity and may require repair or replacement. 3. Scratches: Shallow grooves or cuts, resulting from handling, transportation, or machining, can be found on the steel's surface. While minor scratches may not impact performance, deep scratches can cause stress concentration and potential failure. 4. Roll marks: Raised or depressed lines or patterns, formed during the rolling process, can be seen on the steel's surface. Uneven pressure distribution between rolls causes these marks, affecting dimensional accuracy and surface quality. 5. Laminations: Thin layers or bands of non-metallic inclusions parallel to the steel's surface, caused by inadequate refining or improper casting techniques, are known as laminations. They reduce strength and toughness, requiring further processing or rejection. 6. Decarburization: The loss of carbon content on the steel's surface, occurring during heating, annealing, or hot working, is referred to as decarburization. It decreases hardness and strength, potentially leading to premature failure. 7. Surface cracks: Visible cracks on the steel's surface, caused by excessive cooling rates, improper heat treatment, or mechanical stress, are surface cracks. They compromise structural integrity and may necessitate repairs or rejection. These examples cover just a few of the possible surface defects in steel round bars. It is crucial to inspect and address these defects to ensure the steel's quality and performance in various applications.

Q:Can steel round bars be threaded?: Yes, steel round bars can be threaded. Threading is a common process used to create a helical ridge on the surface of a round bar, allowing it to be securely fastened to other components or fittings.

Q:Can steel round bars be used in the manufacturing of heat exchangers?: Yes, steel round bars can be used in the manufacturing of heat exchangers. Steel round bars are commonly used as a material for heat exchanger tubes due to their high strength, durability, and excellent heat transfer properties. The bars can be formed and welded into various shapes and sizes, making them suitable for constructing the heat exchanger tubes.

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 are the advantages of using phosphorus-alloy steel round bars?: There are several advantages of using phosphorus-alloy steel round bars: 1. Increased strength: Phosphorus-alloy steel round bars have a higher tensile strength compared to standard steel bars. This increased strength makes them suitable for applications that require greater load-bearing capacity, such as construction and automotive industries. 2. Enhanced corrosion resistance: Phosphorus-alloy steel has a higher resistance to corrosion compared to regular steel. This makes it more durable and long-lasting, especially in environments with high moisture or exposure to chemicals. 3. Improved machinability: Phosphorus-alloy steel has excellent machinability, which means it can be easily shaped, cut, and formed into various designs or structures. This characteristic makes it a preferred choice for industries that require precise shaping, such as manufacturing and engineering. 4. Reduced brittleness: Phosphorus-alloy steel has a lower brittleness factor compared to other types of steel. This means it is less likely to break or fracture under sudden impact or stress, making it a safer option for applications where structural integrity is crucial. 5. Cost-effective: Despite its enhanced properties, phosphorus-alloy steel round bars are still cost-effective compared to other specialty alloys. This makes them a more affordable choice for industries that require high-performance materials without breaking the budget. 6. Improved weldability: Phosphorus-alloy steel round bars have excellent weldability, allowing for easy and secure welding connections. This characteristic makes them suitable for applications that require strong and reliable welded joints, such as construction or fabrication projects. In summary, phosphorus-alloy steel round bars offer increased strength, enhanced corrosion resistance, improved machinability, reduced brittleness, cost-effectiveness, and improved weldability. These advantages make them a preferred choice for various industries where high-performance materials are required.

Q:Can steel round bars be used for making conveyor belts or rollers?: Certainly, conveyor belts or rollers can be made using steel round bars. Steel possesses remarkable tensile strength and durability, rendering it appropriate for tasks involving heavy loads or incessant motion. The round bars can be utilized to establish the conveyor belt or roller's structural framework or support system, ensuring stability and rigidity. Furthermore, steel exhibits resistance to wear and tear, as well as the capability to endure high temperatures, thereby making it perfect for industrial environments. Nevertheless, it is crucial to take into account other aspects such as the conveyor system's specific requirements, the type of material being transported, and any potential corrosion concerns that might arise.

Q:What is the difference between a cold-drawn and a polished steel round bar?: A cold-drawn steel round bar is typically produced by pulling a hot-rolled bar through a die, resulting in a smoother and more precise diameter. On the other hand, a polished steel round bar undergoes an additional process of grinding or buffing to achieve a smooth and shiny surface finish. While both bars offer improved surface quality, the cold-drawn bar primarily focuses on dimensional accuracy, while the polished bar enhances aesthetics and corrosion resistance.

Q:How do you store and handle steel round bars?: There are several important considerations when it comes to the storage and handling of steel round bars. Firstly, it is crucial to have a clean and dry storage area that is free from moisture and corrosive materials. This will help prevent damage to the bars, such as rust. To prevent deformation or sagging, the steel round bars should be stored horizontally on racks or a flat surface. It is advisable to stack them in a manner that avoids putting excessive pressure on any individual bar, as this can cause bending or warping. For safe handling, it is recommended to use appropriate lifting equipment like cranes, forklifts, or hoists. Manual handling should be minimized, as steel bars can be heavy and difficult to maneuver. When using lifting equipment, it is important to secure and balance the bars properly to prevent accidents or injuries. Furthermore, it is essential to use protective measures such as gloves and safety shoes when handling steel round bars, as they may have sharp edges or rough surfaces. Wearing proper personal protective equipment (PPE) is necessary to minimize the risk of cuts, abrasions, or other injuries. Regular inspections should be carried out to check for any signs of damage, such as dents, cracks, or corrosion. Damaged bars should be separated and either repaired or discarded, depending on the severity of the damage. By adhering to these storage and handling guidelines, you can ensure the durability and quality of steel round bars, while also creating a safe working environment for yourself and others.

Q:Can steel round bars be used in the manufacturing of valves?: Valves can indeed be manufactured using steel round bars. The utilization of steel round bars in valve production is widespread owing to their remarkable attributes of strength, durability, and resistance to corrosion. These round bars can be skillfully machined and forged into diverse valve components, including stems, bodies, and discs. Furthermore, steel round bars offer exceptional mechanical properties, thereby guaranteeing the ability of valves to endure extreme pressure and temperature conditions. Another advantage is that steel round bars can be effortlessly welded or threaded to connect different valve parts. In conclusion, steel round bars emerge as a dependable and highly favored material option for the manufacturing of valves.

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