Hot Rolled Carbon Steel Round Bars S30C
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 120000 m.t./month
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Hot Rolled Carbon Steel Round Bars S30C
Product Specification
1, Chemical Composition %
| Grade | C | Si | Mn | S | P | Cr | Ni | Cu |
| S30C | 0.27-0.34 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | ≤0.25 |
2, Diameter: 16mm - 300mm
Length: Max 12m
Application
1, Used as mending of drawing parts of automobile sheet metal die and large hard ware sheet metal die.
2, Used as base plate of cold working die.
3, Used as fix plate of drill jig.
Product Main Points
1, Heat Treatment: normalizing, annealing, tempering, quenching
2, Surface Treatment: black, grinding, bright, polish
3, Product Process: hot rolled, cold drawn, forged
FAQ
1, Payment Terms:
30% T/T deposit & 70% T/T before delivery.
Irrevocable L/C at sight
2, Trade Terms:
EXW, FOB, CIF, CNF
3, Delivery Time:
Normally 30-40 days. According to quantity.
4, Manufacture or Trading Company:
CNBM is a state-owned fortune global 500 trading company. We have intergrated supply system.
There are about 20 overseas locations in different countries.
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About Us
- Q: What are the different types of steel round bars used in the automotive chassis components?
- There are several different types of steel round bars that are commonly used in automotive chassis components. These types of steel are chosen based on their specific properties and performance requirements for different components of the chassis. 1. Mild Steel Round Bars: Mild steel is the most commonly used type of steel round bar in automotive chassis components. It offers a good balance between strength, durability, and cost-effectiveness. Mild steel round bars are used in various chassis components such as brackets, supports, and reinforcements. 2. High-Strength Low-Alloy (HSLA) Steel Round Bars: HSLA steel round bars are made with a combination of low carbon content and small amounts of alloying elements such as manganese, phosphorus, and chromium. This type of steel provides higher strength and improved formability compared to mild steel. HSLA steel round bars are often used in critical chassis components like control arms, suspension components, and steering linkages. 3. Boron Steel Round Bars: Boron steel round bars are known for their exceptional strength and resistance to deformation. These bars are alloyed with boron, which imparts high hardenability and toughness to the steel. Boron steel round bars are primarily used in safety-critical chassis components like reinforced door beams and crash structures. 4. Stainless Steel Round Bars: Stainless steel round bars are corrosion-resistant and offer excellent strength and durability. While not as commonly used in automotive chassis components, stainless steel round bars may be utilized in certain specialized components that require resistance to rust and corrosion, such as exhaust system components or parts exposed to harsh environmental conditions. 5. Alloy Steel Round Bars: Alloy steel round bars are made by adding various alloying elements such as nickel, chromium, and molybdenum to enhance specific properties like strength, hardness, and wear resistance. These bars are often used in high-performance chassis components like drive shafts, axles, and gears. In summary, the different types of steel round bars used in automotive chassis components include mild steel, high-strength low-alloy steel, boron steel, stainless steel, and alloy steel. The selection of the appropriate type depends on the specific requirements of each component, including strength, durability, formability, and corrosion resistance.
- Q: What are the different types of steel round bar surface finishes used in the construction industry?
- The different types of steel round bar surface finishes commonly used in the construction industry include mill finish, hot rolled, cold drawn, and polished finishes.
- Q: Can steel round bars be hardened or tempered?
- Yes, steel round bars can be hardened or tempered.
- Q: What is the difference between a cold finished and a hot rolled steel round bar?
- The manufacturing processes and resulting properties of a cold finished steel round bar and a hot rolled steel round bar are different. To manufacture cold finished steel round bars, a cold drawing process is used. This involves pulling the steel through a die at room temperature. As a result, the steel has a smooth, polished surface with tight dimensional tolerances. Additionally, the cold drawing process improves the strength, hardness, and overall mechanical properties of the steel. Cold finished steel round bars are commonly used in applications where precision and a smooth surface are important, such as in machinery, automotive parts, and tools. In contrast, hot rolled steel round bars are manufactured by heating the steel to a high temperature and then rolling it through a series of rollers. This allows for shaping and forming while the steel is pliable. Hot rolled steel round bars have a rough, scaled surface and looser dimensional tolerances compared to cold finished bars. They also tend to have slightly lower strength and hardness. Due to their lower cost and ease of production, hot rolled steel round bars are frequently used in construction, structural components, and general fabrication. In summary, the differences between cold finished and hot rolled steel round bars are found in their manufacturing processes and resulting properties. Cold finished bars offer improved strength, precision, and a smooth surface, making them suitable for applications requiring high precision and mechanical performance. On the other hand, hot rolled bars have a rougher surface and looser tolerances, but their affordability and ease of production make them a popular choice for general applications.
- Q: How are steel round bars used in the manufacturing of machinery and equipment?
- Due to their inherent strength, durability, and versatility, steel round bars find extensive use in the production of machinery and equipment. These bars, typically made from carbon steel or alloy steel, are available in various diameters and lengths. One of the common applications of steel round bars is in fabricating shafts and axles, which are crucial for transmitting rotational motion and torque in machinery. These bars offer the necessary strength and stiffness to withstand the forces and stresses experienced during operation. They are often machined precisely and subsequently heat-treated to enhance their mechanical properties, such as hardness and toughness. Another significant use of steel round bars is in the manufacture of gears and sprockets. These components are essential for transmitting power and motion between different machine parts. Steel round bars are machined to form teeth or cogs that interlock, ensuring smooth and efficient operation. The high strength and wear resistance of steel enable gears and sprockets to endure heavy loads and repetitive motion without distorting or failing. Steel round bars also find application in manufacturing various machine components like bearings, couplings, and fasteners. Bearings, for example, depend on the strength and hardness of steel to support rotating or sliding shafts while minimizing friction and wear. Couplings, on the other hand, utilize steel round bars to connect different machine parts, efficiently transmitting power and motion. Steel round bars also serve as fasteners, providing a secure and dependable connection between different machine elements. Furthermore, steel round bars are frequently used in constructing machine frames and structures. Their high strength-to-weight ratio makes them ideal for providing structural support and stability. By utilizing steel round bars, manufacturers can create robust and reliable machinery and equipment capable of withstanding heavy loads, vibrations, and other challenging operating conditions. In conclusion, steel round bars play a vital role in the manufacturing of machinery and equipment. Their exceptional strength, durability, and versatility make them a favored choice for a wide range of applications. Whether it is for shafts, gears, bearings, or machine frames, steel round bars provide the necessary mechanical properties to ensure the reliable and efficient operation of machinery and equipment.
- Q: What are the different types of steel round bar profiles?
- In the market, one can find various steel round bar profiles. Among the most commonly used profiles are: 1. Plain Round Bar: This profile is the most basic and widely used. It consists of a solid cylindrical bar with a smooth surface and a consistent diameter throughout its length. 2. Deformed Round Bar: This type of round bar features deformations or ribs on its surface. These deformations enhance the bond between the bar and concrete, making it ideal for construction applications requiring reinforced concrete structures. 3. Hollow Round Bar: As the name suggests, this profile has a hollow center. It is often utilized in industries where weight reduction is crucial or when the round bar needs to serve as a conduit for fluids or gases. 4. Threaded Round Bar: This profile is characterized by threads along its length, enabling easy screwing into other components. It is commonly employed in applications that require secure fastening or adjustability. 5. Half-Round Bar: With one flat side and one rounded side, this profile takes on a semi-circular shape. It is frequently used in decorative applications, such as handrails, where an aesthetically pleasing appearance is desired. 6. Square Bar: Although not strictly a round profile, square bars are often included in this category. They possess four equal sides and find common use in applications that demand higher torsional strength. 7. Hexagonal Bar: Similar to square bars, hexagonal bars have six equal sides. They are often employed in applications that require high torque resistance or when a distinctive appearance is desired. These represent just a few of the available steel round bar profiles. The selection of a profile depends on specific application requirements, such as structural strength, bonding capabilities, or aesthetic considerations.
- Q: What is the tolerance level for steel round bars?
- The tolerance level for steel round bars can vary depending on the specific industry standards and requirements, but commonly, it falls within a range of +/- a few millimeters or less.
- Q: Round bars and ribbed stirrups are much better
- Hot rolled ribbed steel bar with high strength, suitable for large component high-rise buildings under gravity loads, but also because of its surface shape can provide grip and end without hook, the corresponding anchorage length is short, the material.
- Q: Can steel round bars be used in the production of gears?
- Indeed, gears can be produced using steel round bars. The utilization of steel round bars as a primary material in the production of gears is quite common due to their remarkable strength, endurance, and capacity to endure substantial loads and extreme temperatures. These round bars can be either machined or forged into the desired gear configuration, guaranteeing precise measurements and precise tooth profiles. Additionally, steel round bars exhibit exceptional resistance to wear and can be subjected to heat treatment to further augment their mechanical qualities. Consequently, they are a suitable option for an array of gear types, encompassing spur gears, helical gears, bevel gears, and worm gears.
- Q: How are steel round bars tested for quality and strength?
- To ensure that steel round bars meet the necessary standards and specifications, various methods are employed to test their quality and strength. One commonly used test is the tensile test, which measures the bar's ability to withstand tension. In this test, a sample of the steel bar is gradually loaded until it reaches its breaking point, and the maximum load it can handle is recorded, along with the sample's elongation and reduction in area. These values offer valuable insights into the bar's strength and ductility. Another test employed is the hardness test, which assesses the steel bar's resistance to indentation or penetration. This test utilizes a hardness testing machine that applies a specific force to a small indenter, such as a diamond or a steel ball, and measures the resulting indentation's depth or size. The obtained hardness values can indicate the bar's strength and its ability to withstand wear and deformation. Apart from these mechanical tests, non-destructive testing methods are also used for steel round bars. Ultrasonic testing is a common technique employed to identify internal defects or inconsistencies in the bar's structure. This method involves transmitting high-frequency sound waves through the bar and analyzing the reflected waves to detect any irregularities. Magnetic particle inspection is another non-destructive test that relies on magnetic fields and particles to identify surface or near-surface defects in the steel bar. Chemical analysis plays a crucial role in determining the quality of steel round bars. This analysis involves testing the steel's composition to ensure it meets the required chemical specifications. It helps identify the presence of impurities or elements that could impact the bar's performance and durability. In summary, steel round bars undergo a combination of mechanical, non-destructive, and chemical tests to evaluate their quality and strength. These tests provide manufacturers with essential information, enabling them to ensure that the bars meet the necessary standards and are suitable for their intended applications.
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Hot Rolled Carbon Steel Round Bars S30C
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 120000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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