Q345B st52-3 Cr50 S355JR Steel Round Bar
- Ref Price:
-
- 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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Item specifice
Standard:
EN,DIN,BS,GB,JIS,ASTM,AISI,API
Technique:
Hot Rolled,EFW,Extruded,Saw,Forged,ERW,Cold Drawn,Cold Rolled,Spring
Shape:
LTZ,Oval,Rectangular,Round,Hexagonal,C Channel,Square,U Channel
Surface Treatment:
Polished,Bright,Black,PVDF Coated,Chromed Passivation,Dry,Oiled,Copper Coated,Coated,Galvanized,Color Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,CE
Thickness:
as required
Length:
as required
Net Weight:
as required
Q345B st52-3 Cr50 S355JR Steel Round Bar
1. Grade:Q345B, Q235B, SS400, HRB335, ST52-3
2. Hot-rolling
3. DIa:10-300mm
4. MOQ:20tons
5. Chemical and physical properties
Grade | C | Mn | Si | P | S | Yield Point(Mpa) | Tensile Stregth(Mpa) | Elongation (%) |
ST52-3 | ≤0.22 | ≤1.60 | ≤0.60 | ≤0.040 | ≤0.040 | ≥325 | 490 630 | ≥18 |
HRB335 | ≤0.25 | ≤1.60 | ≤0.80 | ≤0.045 | ≤0.045 | ≥335 | ≥490 | ≥16 |
6.Size Tolerance
Length tolerance: +100mm/-0mm
Side length tolerance: +/-2mm
Straightness: max 6mm/m
The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be within the limit stipulated in the contract.
We are engaged to offer wide range of steel products: steel round bar, square steel, such
as SS400B, S20C, S45C, Ck45, SAE1020B, SAE1045B, SAE4140, SAE4150, SAE4340,
SAE8620, 42CrMo4, 15B36Cr, S50C, S65C. 20Cr,40Cr.The diameter ranging from 20mm
to 300mm. Hot-rolled/forged/cold drawn.
- Q:How do steel round bars compare to aluminum or steel tubing?
- Steel round bars, aluminum tubing, and steel tubing all have their own unique properties and applications, so it is important to understand the characteristics of each material before making a comparison. Steel round bars are solid cylindrical bars made of steel. They are known for their high strength and durability, making them suitable for heavy-duty applications. Steel round bars have excellent tensile strength and can withstand high levels of stress and pressure. They are often used in construction, manufacturing, and engineering projects where strength and structural integrity are crucial. Steel round bars are also highly resistant to corrosion, making them suitable for outdoor and marine applications. Aluminum tubing, on the other hand, is made from aluminum, which is a lightweight and corrosion-resistant material. Aluminum tubing is known for its excellent thermal conductivity and electrical conductivity. It is often used in applications where weight reduction is important, such as in the aerospace and automotive industries. Aluminum tubing is also commonly used in the construction of heat exchangers and in electrical wiring systems due to its conductivity properties. Steel tubing, similar to steel round bars, is made of steel but is hollow in shape. Steel tubing is known for its versatility and wide range of applications. It is available in various shapes and sizes, including round, square, and rectangular, allowing for different structural designs. Steel tubing is often used in construction, automotive manufacturing, and industrial applications. It offers high strength and rigidity, making it suitable for applications that require structural support or the ability to withstand heavy loads. In comparison, steel round bars offer superior strength and durability compared to aluminum and steel tubing. They are ideal for heavy-duty applications that require high levels of strength and structural integrity. However, steel round bars can be heavier and more expensive than aluminum tubing, which is often preferred for lightweight applications. Steel tubing, on the other hand, provides versatility in terms of shape and size, allowing for more design options. Ultimately, the choice between steel round bars, aluminum tubing, and steel tubing depends on the specific requirements of the application, including factors such as strength, weight, cost, and corrosion resistance. It is important to carefully evaluate these factors and consult with experts to determine the most suitable material for a particular project.
- Q:Can steel round bars be used for making architectural or decorative elements?
- Yes, steel round bars can be used for making architectural or decorative elements. They are versatile and can be shaped, welded, and fabricated into various designs, giving them the potential to enhance the aesthetic appeal of architectural structures or serve as decorative elements.
- Q:Can steel round bars be used for making stabilizer bars?
- Stabilizer bars can indeed be made using steel round bars. The automotive industry commonly employs steel due to its exceptional durability, high strength, and resistance to deformation. Stabilizer bars, also referred to as sway bars, are crucial components in a vehicle's suspension system. Their purpose is to enhance stability while cornering and minimize body roll. These bars endure substantial forces and must possess the ability to withstand heavy loads. Steel round bars offer the essential strength and rigidity necessary for stabilizer bars to effectively fulfill their function. Moreover, steel is easily accessible and cost-effective, which contributes to its popularity as a preferred material for manufacturing stabilizer bars in the automotive industry.
- Q:Can steel round bars be hardened or tempered?
- Yes, steel round bars can be hardened or tempered. Hardening is a heat treatment process that involves heating the steel to a specific temperature and then rapidly cooling it, typically by quenching it in water or oil. This process increases the hardness and strength of the steel, making it more resistant to wear and deformation. Tempering, on the other hand, is a heat treatment process that involves reheating the hardened steel to a lower temperature and then cooling it slowly. This process reduces the brittleness of the steel and improves its toughness and ductility. Both hardening and tempering can be done on steel round bars to achieve specific mechanical properties desired for various applications.
- Q:How do you calculate the moment of inertia for a steel round bar?
- To determine the moment of inertia for a steel round bar, one can utilize the equation for the moment of inertia of a solid cylinder. Denoted as I, the moment of inertia signifies an object's resistance to rotational changes. The equation for the moment of inertia of a solid cylinder is as follows: I = (1/2) * m * r^2 Where: - I represents the moment of inertia - m denotes the mass of the cylinder - r signifies the radius of the cylinder To calculate the moment of inertia for a steel round bar, it is necessary to possess knowledge of both the bar's mass and radius. The mass can be determined by multiplying the steel's density by the cylinder's volume. The volume of a cylinder is given by the subsequent formula: V = π * r^2 * h Where: - V symbolizes the volume - r stands for the radius - h represents the height or length of the round bar After obtaining the mass and radius, one can then substitute these values into the formula for moment of inertia to compute it. It is crucial to ensure unit consistency during this process (e.g., converting centimeters to meters if the radius is initially given in centimeters). It is important to note that the aforementioned formula assumes that the steel round bar is a solid cylinder. Should the bar possess a different shape or contain hollow sections, these factors must be taken into consideration when conducting the calculation.
- Q:What is the weight of a steel round bar?
- The weight of a steel round bar can vary depending on its dimensions and the type of steel used. Generally, the weight of a steel round bar can be calculated by multiplying its volume (pi times the square of the radius times the length) by the density of the steel.
- Q:What are the advantages of using niobium-alloy steel round bars?
- Niobium-alloy steel round bars offer numerous benefits. Firstly, they possess exceptional strength and toughness. By incorporating niobium, the steel's strength increases while maintaining its ductility, making it ideal for applications requiring durability and high strength. Consequently, these round bars can withstand heavy loads and shocks without deforming or breaking easily. Secondly, niobium-alloy steel exhibits high resistance to corrosion. Consequently, it proves suitable for use in harsh environments where exposure to moisture, chemicals, or corrosive substances is common. The corrosion resistance ensures that the round bars remain intact and retain their structural integrity over time, reducing the need for frequent replacements and maintenance. Moreover, niobium-alloy steel demonstrates excellent weldability and formability. It can be effortlessly welded and fabricated into various shapes and sizes, making it adaptable to different manufacturing processes and applications. This adaptability enables the production of custom-designed round bars that meet specific project requirements. Additionally, niobium-alloy steel possesses superior heat resistance properties. It can endure high temperatures without losing strength or experiencing significant changes in its mechanical properties. Thus, it proves suitable for applications involving exposure to extreme heat or thermal cycling, such as in the aerospace or automotive industries. Furthermore, niobium-alloy steel is renowned for its exceptional fatigue resistance. It possesses a high endurance limit, enabling it to withstand repeated loading and unloading cycles without experiencing fatigue failure. This quality makes niobium-alloy steel round bars ideal for applications involving dynamic or cyclic loading, such as in structural components or machinery. In conclusion, the utilization of niobium-alloy steel round bars grants advantages such as high strength, corrosion resistance, weldability, formability, heat resistance, and fatigue resistance. These properties make niobium-alloy steel a reliable and cost-effective choice for numerous industries and applications.
- Q:Are steel round bars suitable for electrical conductivity?
- Steel round bars are not typically known for their electrical conductivity. Steel is a good conductor of heat but has relatively poor electrical conductivity compared to other metals such as copper or aluminum. This is because steel is primarily composed of iron, which is a poor conductor of electricity. However, the electrical conductivity of steel can be improved by adding certain alloying elements such as chromium or nickel. These alloying elements can enhance the electrical conductivity of steel, making it more suitable for specific applications where electrical conductivity is required. Nonetheless, if high electrical conductivity is a critical requirement, other materials like copper or aluminum are usually preferred over steel round bars.
- Q:What is the difference between a ground and a polished steel round bar?
- A ground steel round bar refers to a bar that has undergone a grinding process to achieve a smooth and precise outer surface. On the other hand, a polished steel round bar refers to a bar that has been polished to enhance its appearance, often resulting in a shiny and reflective surface. While both processes improve the surface quality of the bar, grinding focuses on accuracy and removing imperfections, while polishing is primarily done for aesthetic purposes.
- Q:Are steel round bars suitable for electrical applications?
- Steel round bars can be suitable for electrical applications depending on the specific requirements and conditions. Steel is known for its excellent conductivity, strength, and durability, making it a popular choice for various electrical applications. However, it is important to consider a few factors before using steel round bars in electrical applications. First, steel is a good conductor but not as good as other materials like copper or aluminum. Consequently, its use in electrical applications may result in higher resistance and energy loss compared to these more conductive materials. Additionally, steel round bars may be prone to corrosion, especially in humid or corrosive environments. This can affect the overall performance and longevity of the electrical system. In such cases, proper insulation or protective coatings may be necessary to prevent corrosion and ensure the reliability of the electrical application. In summary, while steel round bars can be suitable for electrical applications due to their conductivity, strength, and durability, it is essential to consider factors such as conductivity, corrosion resistance, and overall system requirements before utilizing them.
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Q345B st52-3 Cr50 S355JR Steel Round Bar
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 100000 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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