Sea 9260 Spring Steel Bar

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 120000 m.t./month

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C	Si	Mn	S	P	Cr	Ni	Cu
0.52-0.60	1.50-2.00	0.60-0.90	≤0.035	≤0.035	≤0.35	≤0.35	≤0.20

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)

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 used for making bicycle frames?: Yes, steel round bars can be used for making bicycle frames. Steel is a popular material choice for bicycle frames due to its strength, durability, and ability to absorb vibrations. Steel round bars can be easily shaped and welded to create a sturdy and reliable frame for bicycles.

Q: What are the standard sizes for steel round bars?: The standard sizes for steel round bars vary depending on the specific industry and application. However, some common standard sizes include 1/4 inch, 3/8 inch, 1/2 inch, 5/8 inch, 3/4 inch, 7/8 inch, 1 inch, 1 1/4 inch, 1 1/2 inch, 1 3/4 inch, 2 inch, 2 1/2 inch, 3 inch, 3 1/2 inch, 4 inch, 4 1/2 inch, 5 inch, 5 1/2 inch, 6 inch, 7 inch, 8 inch, 9 inch, 10 inch, 11 inch, 12 inch, and so on. These sizes are commonly used in construction, manufacturing, and engineering industries, and they may vary slightly depending on the country or region. It is important to note that steel round bars can also be custom-made to specific sizes and lengths to meet the requirements of a particular project.

Q: What are the advantages of using nickel-tungsten alloy steel round bars?: There are several advantages of using nickel-tungsten alloy steel round bars: 1. High strength and durability: Nickel-tungsten alloy steel round bars have excellent strength and durability properties. This makes them suitable for applications that require resistance to wear, fatigue, and high-temperature environments. 2. Corrosion resistance: The addition of nickel in the alloy enhances its corrosion resistance properties. This makes nickel-tungsten alloy steel round bars highly resistant to various corrosive environments, including acids, alkalis, and seawater. 3. Excellent heat resistance: Nickel-tungsten alloy steel round bars exhibit excellent heat resistance, which allows them to maintain their mechanical properties even at elevated temperatures. This makes them ideal for applications that involve high-temperature environments, such as in the aerospace and automotive industries. 4. Good electrical conductivity: The inclusion of tungsten in the alloy enhances its electrical conductivity properties. This makes nickel-tungsten alloy steel round bars suitable for applications that require good electrical conductivity, such as in electrical connectors and electronic devices. 5. Machinability: Nickel-tungsten alloy steel round bars are relatively easy to machine, allowing for the production of complex shapes and designs. This makes them versatile and suitable for various manufacturing processes, including machining, forging, and welding. 6. Cost-effective: Despite their advantageous properties, nickel-tungsten alloy steel round bars are relatively cost-effective compared to other high-performance alloys. This makes them a cost-efficient choice for many industries, as they offer a balance between performance and affordability. Overall, the advantages of using nickel-tungsten alloy steel round bars make them a preferred material for a wide range of applications, including aerospace, automotive, electrical, and manufacturing industries.

Q: What is the difference between a hot-rolled and a peeled steel round bar?: The main difference between a hot-rolled and a peeled steel round bar lies in their manufacturing processes. A hot-rolled steel round bar is formed by heating a metal billet or ingot to a high temperature and then rolling it into its final shape and size. This process results in a rougher surface texture and a larger diameter tolerance. On the other hand, a peeled steel round bar undergoes an additional step called peeling after the hot-rolling process. In this step, the outer surface of the bar is removed by rotating it against a stationary cutting tool. This process improves the surface finish and dimensional accuracy of the round bar, resulting in a smoother and more precise product. In summary, while both hot-rolled and peeled steel round bars are commonly used in various industries, the peeled bar offers superior surface finish and dimensional accuracy due to the additional peeling step in its manufacturing process.

Q: Can steel round bars be used for making control arms?: Control arms, which are crucial elements of a vehicle's suspension system, necessitate the utilization of steel round bars. These bars serve as the link between the chassis and the wheel hub, enduring considerable forces like torsion, bending, and compression. Particularly, steel round bars made from high-strength steel alloys possess exceptional mechanical attributes, including high tensile strength, good ductility, and high fatigue resistance, rendering them suitable for control arm applications. Furthermore, the machinability and weldability of steel round bars facilitate the creation of intricate and precise control arm designs. However, it is imperative to ensure that the chosen steel round bars adhere to the required specifications and standards for control arm fabrication, encompassing dimensional accuracy, material composition, and quality control.

Q: Are steel round bars suitable for use in the aerospace industry?: Yes, steel round bars are suitable for use in the aerospace industry. Steel round bars offer excellent strength and durability, making them an ideal choice for various applications in aerospace engineering. They have a high tensile strength and can withstand extreme temperatures and pressures often encountered in aerospace operations. Steel round bars also have good corrosion resistance, which is crucial for maintaining structural integrity in aircraft exposed to different environmental conditions. Moreover, their machinability and weldability make them versatile for manufacturing components and structures in the aerospace industry. Overall, steel round bars are a reliable and cost-effective material choice for aerospace applications.

Q: What are the advantages of using high-strength steel round bars?: There are several advantages to using high-strength steel round bars in various applications. Firstly, high-strength steel round bars are known for their exceptional strength-to-weight ratio. This means that even though these bars are lighter in weight compared to other materials, they possess a significantly higher strength. This advantage allows for the construction of structures that are both sturdy and lightweight, making them ideal for applications where weight reduction is crucial, such as in the aerospace and automotive industries. Secondly, high-strength steel round bars offer excellent resistance to wear, fatigue, and impact. This characteristic makes them highly durable and able to withstand heavy loads and repeated stress, enhancing the overall lifespan and performance of structures or components made from these bars. This advantage is particularly beneficial in applications such as construction, where the materials are subjected to extreme conditions and must maintain their structural integrity over time. Furthermore, high-strength steel round bars provide improved design flexibility due to their versatility. They can be easily shaped, machined, and welded, allowing for the creation of complex and customized structures or components. This advantage enables engineers and designers to optimize their designs and achieve specific performance requirements, resulting in more efficient and innovative solutions. In addition, high-strength steel round bars offer enhanced resistance to corrosion, making them suitable for applications where exposure to harsh environmental conditions or corrosive substances is a concern. By utilizing high-strength steel round bars, structures or components can maintain their integrity and functionality for extended periods, reducing the need for frequent maintenance and replacement. Finally, using high-strength steel round bars can lead to cost savings in the long run. Although the initial cost of these bars might be higher compared to other materials, their superior strength and durability can significantly reduce maintenance, repair, and replacement costs over time. Additionally, the lightweight nature of high-strength steel round bars can contribute to fuel efficiency, resulting in cost savings in transportation and other industries. Overall, the advantages of using high-strength steel round bars include high strength-to-weight ratio, excellent resistance to wear and fatigue, improved design flexibility, enhanced corrosion resistance, and potential cost savings. These benefits make high-strength steel round bars a preferred choice for a wide range of applications, ranging from construction and manufacturing to transportation and infrastructure.

Q: Can steel round bars be used in the manufacturing of household appliances?: Household appliances can indeed make use of steel round bars. Steel, being a versatile and durable material, is widely employed in a variety of industries, including the manufacturing of appliances for homes. The construction of appliance frames, support structures, and even internal components can all benefit from the utilization of steel round bars. Its high strength and resistance to corrosion make steel an excellent choice for ensuring the longevity and durability of household appliances. Moreover, steel can be easily molded and shaped to precise dimensions, allowing for the creation of appliances with intricate designs. In summary, incorporating steel round bars into the manufacturing process of household appliances helps to produce products that are of superior quality, reliability, and longevity.

Q: What are the different types of steel round bar surface treatments for improved wear resistance?: To enhance wear resistance, one can apply various surface treatments to different types of steel round bars. These treatments aim to improve the steel's hardness, toughness, and overall durability, making it more resistant to wear and corrosion. The most common surface treatments for steel round bars include: 1. Nitriding: By subjecting the steel to a nitrogen-rich environment at high temperatures, a hard nitride layer forms on the surface, enhancing wear resistance and hardness. 2. Carburizing: This process involves introducing carbon into the steel's surface, creating a high-carbon layer that increases hardness and wear resistance, making it suitable for applications requiring strength and durability. 3. Induction hardening: By selectively heating the steel's surface using an induction coil and rapidly quenching it, the resulting hardened layer provides excellent wear resistance while maintaining core toughness. 4. Shot peening: This treatment entails bombarding the steel surface with small metal or ceramic particles at high velocity, inducing compressive stresses that improve fatigue life and wear resistance. 5. Thermal spraying: Using a flame or plasma torch, a coating material is melted and sprayed onto the steel surface, creating a protective layer with enhanced wear resistance and corrosion protection. 6. PVD/CVD coatings: These involve depositing a thin layer of material onto the steel surface through Physical Vapor Deposition (PVD) or Chemical Vapor Deposition (CVD). These coatings offer excellent wear resistance, low friction, and improved corrosion protection. 7. Hard chrome plating: By electroplating a layer of chromium onto the steel surface, this process provides high hardness, wear resistance, and corrosion protection. It's crucial to consider specific application requirements and the desired type of wear resistance when choosing a surface treatment. Each treatment has its own advantages and limitations, and factors such as cost, environmental impact, and performance characteristics should be taken into account when selecting the most suitable treatment for a given steel round bar.

Q: Are steel round bars suitable for architectural applications?: Yes, steel round bars are suitable for architectural applications. They offer strength, durability, and versatility, allowing them to be used in various architectural designs such as railings, sculptures, and decorative elements. Steel round bars can be easily fabricated and have a sleek and modern aesthetic, making them a popular choice in the architectural industry.

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