Carbon Structural Steel Round Bar ASTM1020/GB20/DINC22
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 500000 m.t./month
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Specification
Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF 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,BV,IBR,RoHS,CE,API,BSI,UL
Thickness:
16mm-360mm
Length:
6m
Net Weight:
2mt
Carbon Structural Steel Round Bar ASTM1020/GB20/DINC22
Product Description of Carbon Structural Steel Round Bar ASTM1020/GB20/DINC22
1. Steel grade: SAE1020, 20#, C22, S20C
2. Length: 6M-12M
3. Diameter: 16mm-300mm
4. Product range: round bar, flat bar, square bar
5. Technique: Hot rolled, forged, cold drawn
Specification of Carbon Structural Steel Round Bar ASTM1020/GB20/DINC22
Material | ASTM 1020 | Round bar | Dia(mm) | 16-300mm |
Process | EAF + LF + VD + Forged + Heat Treatment (optional) | Length (mm) | Max 12m | |
Heat treatment | Normalized / Annealed / Quenched / tempered | Flat bar | Thickness(mm) | 8-500mm |
Delivery condition | Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) | Width(mm) | 70-200mm | |
Test | Ultrasonic test according to SEP 1921-84 D/d | Length (mm) | Max 12m |
Chemical Composition of Carbon Structural Steel Round Bar ASTM1020/GB20/DINC22
C | Si | Mn | Cr | Ni | Cu |
0.17~0.23 | 0.17~0.37 | 0.35~0.65 | ≤0.25 | ≤0.30 | ≤0.25 |
Photo Show of Carbon Structural Steel Round Bar ASTM1020/GB20/DINC22
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of Carbon Structural Steel Round Bar ASTM1020/GB20/DINC22
1. Steel round bar is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Some special material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.
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.
F A Q
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.
- Q:What are the advantages of using vanadium-alloy steel round bars?
- There are several advantages of using vanadium-alloy steel round bars. Firstly, vanadium-alloy steel has significantly increased strength and toughness compared to regular steel. This makes it an ideal choice for applications where high strength and durability are required, such as in construction, manufacturing, and engineering projects. The addition of vanadium enhances the steel's ability to withstand heavy loads, impacts, and extreme temperatures, making it suitable for demanding environments. Secondly, vanadium-alloy steel round bars have excellent resistance to corrosion. Vanadium forms a protective oxide layer on the surface of the steel, preventing the metal from rusting or corroding. This makes the bars highly durable and long-lasting, even in harsh or corrosive environments. Additionally, vanadium-alloy steel has good weldability and machinability. It can be easily welded, allowing for efficient fabrication and construction processes. The steel's machinability allows for precise shaping and forming, making it adaptable to various design requirements. Furthermore, vanadium-alloy steel exhibits excellent wear resistance. This is particularly beneficial in applications where the bars are subjected to high levels of friction, abrasion, or wear, such as in mining or manufacturing equipment. The addition of vanadium enhances the steel's hardness and wear resistance, prolonging the lifespan of the bars and reducing maintenance costs. Lastly, vanadium-alloy steel has excellent heat resistance. It can withstand high temperatures without losing its strength or structural integrity. This makes it suitable for applications that involve exposure to extreme heat, such as in automotive engines, turbines, or power generation equipment. In conclusion, the advantages of using vanadium-alloy steel round bars include increased strength and toughness, resistance to corrosion, good weldability and machinability, excellent wear resistance, and high heat resistance. These qualities make vanadium-alloy steel round bars a reliable and versatile choice for a wide range of applications.
- Q:What are the different types of steel round bar alloys for improved strength?
- There are several types of steel round bar alloys that provide improved strength, including carbon steel, alloy steel, stainless steel, and tool steel. Each of these alloys has different properties and compositions, making them suitable for various applications where enhanced strength is required.
- Q:How are steel round bars heat treated?
- Steel round bars are heat treated to increase their strength and hardness while also improving their mechanical properties. The heat treatment process typically involves three main steps: heating, soaking, and cooling. Firstly, the steel round bars are heated to a specific temperature, known as the austenitizing temperature. This temperature is usually above the critical temperature of the steel, which allows the material to transform into its austenite phase. The austenitizing temperature varies depending on the type of steel and the desired properties. Once the steel round bars reach the austenitizing temperature, they are soaked at this temperature for a specific duration. The soaking time allows for the complete transformation of the microstructure, ensuring uniformity and avoiding any thermal gradients within the material. The soaking time is crucial in determining the final properties of the steel. After the soaking period, the steel round bars are rapidly cooled in a process called quenching. Quenching is typically done by immersing the bars in a quenching medium, such as oil, water, or air, depending on the desired hardness and properties. The quenching process rapidly cools the bars, causing a martensitic transformation in the steel's microstructure. This transformation results in increased hardness and strength. Following quenching, the steel round bars may undergo an additional step called tempering. Tempering involves reheating the bars to a lower temperature, typically below the austenitizing temperature. This step aims to reduce the brittleness caused by the quenching process while further improving the material's toughness and ductility. Overall, the heat treatment process for steel round bars involves heating to the austenitizing temperature, soaking for a specific duration, quenching to rapidly cool and harden the material, and potentially tempering to achieve the desired properties. This process allows for the customization and enhancement of the steel's mechanical properties, making it suitable for various applications.
- Q:How do you prevent warping of steel round bars during machining?
- To prevent warping of steel round bars during machining, several precautions can be taken. First, it is important to use a proper cutting tool with sharp edges and the right cutting speed to minimize heat generation. Additionally, using lubricants and coolants during the machining process can help dissipate heat and reduce friction. It is also crucial to ensure that the workpiece is properly secured to minimize vibration and movement during machining. Finally, allowing sufficient time for the steel round bars to cool down gradually after machining can help prevent warping.
- Q:What are the different types of connections used with steel round bars?
- Different types of connections are commonly used with steel round bars, depending on the specific application and structural requirements. Some examples of these connections include: 1. Welded Connections: Steel round bars can be fused together using heat and pressure in a process called welding. This method is widely used and results in a strong and durable connection. 2. Mechanical Connections: Bolts, nuts, or other mechanical fasteners can be employed to join steel round bars together. These connections are easy to install and can be disassembled if necessary, making them ideal for applications requiring frequent disassembly or reconfiguration. 3. Threaded Connections: By cutting threads into the ends of steel round bars, they can be screwed together using nuts. This type of connection offers good strength and can be easily tightened or loosened. 4. Adhesive Connections: High-strength adhesives or epoxies can be used to bond steel round bars together when welding or mechanical connections are not feasible or desirable. This method is commonly used in such situations. 5. Interlocking Connections: Specially designed couplers or connectors can be used to fit over the ends of steel round bars, creating a secure interlocking connection. These connections are often utilized in construction projects where quick and efficient installation is required. 6. Grouted Connections: The gaps between steel round bars can be filled with a cementitious grout material to enhance strength and stability. Grouted connections are commonly used in applications that require high load capacities. To ensure the correct type of connection is chosen for steel round bars, it is crucial to consider factors such as load capacity, installation ease, disassembly requirements, and structural integrity. Consulting with a structural engineer or a professional in the field is recommended.
- Q:What are the different types of steel round bars used in the manufacturing of cutting tools?
- There are several different types of steel round bars that are commonly used in the manufacturing of cutting tools. Some of the most commonly used types include: 1. High-Speed Steel (HSS): This type of steel is known for its excellent hardness, wear resistance, and ability to retain its cutting edge at high temperatures. HSS round bars are often used in the manufacturing of drills, end mills, and other cutting tools that are used for metalworking and high-speed applications. 2. Tool Steel: Tool steel round bars are widely used in the production of cutting tools due to their high strength, toughness, and resistance to wear and deformation. Different grades of tool steel, such as D2, A2, and O1, are chosen based on the specific application and requirements of the cutting tool. 3. Carbon Steel: Carbon steel round bars are commonly used in the manufacturing of cutting tools that are designed for softer materials, such as wood and plastics. Carbon steel offers good hardness and durability, making it suitable for a wide range of cutting applications. 4. Stainless Steel: Stainless steel round bars are often used in the manufacturing of cutting tools that require high corrosion resistance and strength. Stainless steel offers good durability, toughness, and edge retention, making it a popular choice for cutting tools used in the food industry, medical field, and other applications where cleanliness and hygiene are important. 5. Alloy Steel: Alloy steel round bars are made by adding various alloying elements, such as chromium, molybdenum, and vanadium, to improve the properties of the steel. Alloy steel offers enhanced hardness, strength, and wear resistance, making it suitable for cutting tools used in demanding applications, such as machining hardened materials and high-temperature cutting. It is important to choose the appropriate type of steel round bar based on the specific requirements of the cutting tool, including the material being cut, the desired cutting speed, and the expected operating conditions.
- Q:How do you straighten steel round bars?
- Steel round bars can be straightened by using a hydraulic straightening press or by applying heat and pressure to the bent section until it regains its original shape.
- Q:What are the different surface finishes for stainless steel round bars?
- Different surface finishes can be applied to stainless steel round bars depending on the desired aesthetic appeal and functional needs. Some common surface finishes for stainless steel round bars include the following: 1. Bright Annealed (BA): This finish is achieved by annealing the stainless steel round bar in a controlled atmosphere, resulting in a smooth and highly reflective surface. It is often used for decorative purposes due to its mirror-like appearance. 2. Mill Finish: Also known as hot rolled or hot-rolled annealed and pickled (HRAP), this surface finish is the untreated surface directly from the mill. It has a rough and pitted texture, making it suitable for industrial applications where appearance is not the main concern. 3. Satin Finish: Also referred to as brushed or dull polished finish, this surface finish is achieved by brushing the stainless steel round bar with a fine abrasive material. It creates a soft and matte appearance with visible parallel lines. 4. Polished Finish: This finish is achieved by progressively using finer abrasive materials to polish the surface of the stainless steel round bar. It results in a high-gloss, mirror-like finish that is commonly used for decorative purposes. 5. Ground Finish: This surface finish is achieved by grinding the surface of the stainless steel round bar using abrasive belts or wheels. It creates a uniform and smooth surface with a matte appearance. 6. Bead Blasted Finish: This finish is achieved by bombarding the surface of the stainless steel round bar with small glass beads at high pressure. It creates a uniform and matte appearance with a slightly textured feel. 7. Electropolished Finish: This finish is achieved by immersing the stainless steel round bar in an electrolytic bath and applying an electric current. It removes a thin layer of material, resulting in a smooth and shiny surface with improved corrosion resistance. Each surface finish possesses its own distinct characteristics and is selected based on the specific requirements of the application.
- Q:Can steel round bars be used for gear applications?
- Yes, steel round bars can be used for gear applications. Steel round bars are often used for manufacturing gears due to their high strength, durability, and ability to withstand heavy loads and wear. They can be machined and heat-treated to meet specific gear requirements, making them a suitable choice for various gear applications in industries such as automotive, machinery, and manufacturing.
- Q:Can steel round bars be used for making stabilizer bars?
- Yes, steel round bars can be used for making stabilizer bars. Steel round bars are commonly used in various industries, including automotive, for their high strength and durability. Stabilizer bars require materials that can withstand heavy loads and provide stability, making steel round bars an ideal choice for their construction.
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Carbon Structural Steel Round Bar ASTM1020/GB20/DINC22
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 500000 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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