S20C-B/S45C-B 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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S20C-B/S45C-B Steel Round Bar

Specifications

S20C-B/S45C-B steel round bar
Dia 18-60mm
Grade 20,45#
Standard GB,JIS,ASTM,DIN,AISI,BS
LF & VD forge;ISO&TUV approved

S20C-B/S45C-B steel round bar

Round bar steel diameter 18-60mm,material 20#,45#,55#,40CrUP,40CrUC,40Mn2,20CrMnTi,42CrMo

Rolling tube blank diameter 50-130mm.material 20#,45#,10#,35#,37Mn5,Q345,20Mn2/30Mn2,45Mn2,27SiMn

Casting round tube blank diameter160-230mm,material 20#,45#,25Mn,Q345B,20Mn2/30Mn2,45Mn2,27SiMn,33Mn2V/36Mn2V,

Bearing steel diameter18-60mm,material GCr15,Flat spring steel material 60Si2Mn,55CrMnA,50CrVA

Grade	Dia(mm)	C	Si	Mn	P	S	Ni	Cu	Cr
20	18-60	0.17-0.23	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.30	≤0.25	≤0.25
45		0.42-0.50	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.30	≤0.25	≤0.25

Grade

Dia(mm)

18-60

0.17-0.23

0.17-0.37

0.35-0.65

≤0.035

≤0.30

≤0.25

0.42-0.50

0.17-0.37

0.35-0.65

≤0.035

≤0.30

≤0.25

Products

S20C-B/S45C-B Steel Round Bar

Q: Can steel round bars be bent or formed?: Steel round bars have the capability to be bent or formed, depending on several factors such as the type of steel, bar diameter and thickness, and the chosen bending or forming method. There are various techniques available for bending or forming steel round bars, including hot bending, cold bending, and mechanical bending. In hot bending, the steel round bar is heated to a specific temperature and then shaped according to the desired form. On the other hand, cold bending does not require any heating and can be accomplished using hydraulic or manual bending machines. Mechanical bending, however, involves the utilization of specialized machinery to apply force and bend the steel round bar. It is vital to note that excessive bending or forming may weaken the steel round bar and affect its structural integrity. Hence, it is crucial to adhere to proper bending and forming techniques and consider the manufacturer's limitations and industry standards.

Q: Can steel round bars be used in the automotive manufacturing?: Yes, steel round bars can be used in automotive manufacturing. Steel round bars are commonly used in the production of various automotive components such as axles, crankshafts, connecting rods, and suspension parts. They offer excellent strength, durability, and impact resistance, making them suitable for withstanding the rigorous demands of automotive applications. Additionally, steel round bars can be easily machined and fabricated to meet specific design requirements, ensuring precise and reliable performance in the automotive industry.

Q: What are the applications of steel round bars?: Steel round bars have a wide range of applications across various industries due to their inherent strength, durability, and versatility. Some of the key applications of steel round bars include: 1. Construction: Steel round bars are extensively used in the construction industry for various structural purposes. They are commonly used for building columns, beams, and frames due to their high strength-to-weight ratio, which ensures stability and safety in construction projects. 2. Manufacturing: Steel round bars are widely used in the manufacturing sector for fabricating various components and machinery. They are commonly employed in the production of gears, shafts, axles, and other machine parts that require high strength and precision. 3. Automotive industry: Steel round bars find significant applications in the automotive industry. They are used in the manufacturing of crankshafts, connecting rods, suspension components, and many other parts, providing strength and reliability to vehicles. 4. Oil and gas industry: In the oil and gas sector, steel round bars are used for manufacturing drill bits, valves, pipes, and other equipment that are exposed to harsh environmental conditions and require high strength and corrosion resistance. 5. Aerospace industry: Steel round bars are essential in the aerospace industry due to their high strength and lightweight properties. They are used in the production of aircraft components, such as landing gear, engine parts, and structural components. 6. Shipbuilding: Steel round bars are commonly used in shipbuilding due to their excellent strength and corrosion resistance. They are used in the construction of ship frames, hulls, and other critical components that require durability and resistance to harsh marine environments. 7. Infrastructure projects: Steel round bars are extensively used in infrastructure projects, such as bridges, tunnels, and railways. They provide the necessary strength and stability required for supporting heavy loads and ensuring the structural integrity of these projects. 8. Furniture and interior design: Steel round bars are also used in the furniture and interior design industry. They are commonly employed in the construction of chairs, tables, shelves, and other furniture pieces due to their sleek appearance, durability, and easy formability. Overall, steel round bars have a wide range of applications in various industries, contributing to the development of robust and reliable structures, machinery, and equipment.

Q: Can steel round bars be used in the manufacturing of agricultural equipment?: Yes, steel round bars can be used in the manufacturing of agricultural equipment. Steel is a strong and durable material that provides the necessary strength and structural integrity required for agricultural machinery. It is commonly used in the production of components such as axles, shafts, and supports, making it suitable for various types of farming equipment.

Q: What are the different grades of heat-treated steel round bars?: The different grades of heat-treated steel round bars include, but are not limited to, AISI 4140, AISI 4340, AISI 8620, and ASTM A105.

Q: What are the advantages of using corrosion-resistant steel round bars?: Using corrosion-resistant steel round bars offers several advantages. Firstly, these bars have a high resistance to corrosion, making them ideal for use in environments where rust and corrosion are a concern. This characteristic ensures the longevity and durability of the bars, reducing the need for frequent replacements and maintenance. Secondly, corrosion-resistant steel round bars are able to withstand exposure to harsh chemicals, moisture, and various weather conditions, making them suitable for outdoor applications and industries such as construction, marine, and oil and gas. Additionally, these bars have excellent strength and toughness properties, providing structural stability and reliability in critical applications. Overall, the use of corrosion-resistant steel round bars offers enhanced longevity, reduced maintenance costs, and improved performance, making them a valuable choice for numerous industries.

Q: Can steel round bars be used for making pipelines?: Yes, steel round bars can be used for making pipelines. They are often used as the main material for pipelines due to their high strength and durability, which enables them to withstand the pressure and environmental conditions that pipelines are exposed to. Additionally, steel round bars can be easily welded together to create a continuous pipeline, ensuring a reliable and efficient transportation system for various fluids or gases.

Q: What are the different grades of steel round bars?: There are several different grades of steel round bars, each with its own unique properties and characteristics. Some of the most common grades include: 1. Mild Steel: Also known as low carbon steel, this grade is the most widely used due to its affordability and versatility. It has a relatively low carbon content and is easy to weld and form. 2. Carbon Steel: This grade contains a higher carbon content than mild steel, making it stronger and more durable. It is commonly used in applications that require high strength and hardness, such as construction and machinery. 3. Alloy Steel: Alloy steel round bars are made by combining different elements, such as chromium, nickel, or molybdenum, with carbon steel. This creates a material with enhanced properties, such as increased corrosion resistance, improved toughness, and higher tensile strength. 4. Stainless Steel: Stainless steel round bars are made primarily from iron and contain a minimum of 10.5% chromium. This grade of steel is known for its excellent corrosion resistance and is commonly used in applications where hygiene and cleanliness are crucial, such as in the food and pharmaceutical industries. 5. Tool Steel: Tool steel round bars are specifically designed to withstand high temperatures, heavy loads, and repeated impacts. They have excellent hardness, wear resistance, and toughness, making them suitable for manufacturing tools and dies. 6. High-Speed Steel (HSS): HSS round bars are a type of tool steel that can withstand high cutting speeds without losing their hardness. They are commonly used in applications that involve cutting, drilling, or machining at high speeds, such as in the manufacturing of drills and milling cutters. These are just a few of the many grades of steel round bars available, each designed to meet specific requirements in various industries and applications. It is important to select the appropriate grade based on factors such as strength, corrosion resistance, and desired properties for a particular project or usage.

Q: How do you determine the strength and hardness of a steel round bar?: To assess the strength and hardness of a steel round bar, a variety of tests and techniques can be utilized. The tensile strength test is a frequently employed method. During this test, an increasing load is applied to a sample of the steel round bar until it reaches its breaking point. The maximum load it can endure before breaking is recorded, providing an indication of the bar's strength. Another essential measure of steel round bar quality is hardness testing. The Rockwell hardness test is commonly used, involving the pressing of a diamond or tungsten carbide ball into the bar's surface with a specific load. The depth of the resulting indentation is measured, and the hardness value is determined according to a standardized scale. Additionally, the Brinell hardness test can be employed, which entails pressing a hardened steel ball into the round bar's surface with a specific load. The diameter of the resulting indentation is measured, allowing for the calculation of hardness based on the applied load and indentation size. Furthermore, non-destructive techniques such as ultrasonic testing and magnetic particle inspection can offer insight into the steel round bar's internal structure, defects, and cracks, indirectly indicating its strength and hardness. It is crucial to acknowledge that various factors, including steel composition, heat treatment, and manufacturing processes, can influence the strength and hardness of a round bar. Therefore, consulting relevant standards and specifications that define the expected properties for the specific type of steel round bar being tested is advisable.

Q: Can steel round bars be used in high-pressure applications?: Yes, steel round bars can be used in high-pressure applications. Steel is known for its strength and durability, making it suitable for withstanding high-pressure environments. Additionally, steel round bars can be manufactured to specific tensile and yield strengths, allowing them to meet the requirements of various high-pressure applications.

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