Hot Rolled GB Standard Round Steel Bar Q235, SAE1020
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
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Product Description:
OKorder is offering Hot Rolled GB Standard Round Steel Bar Q235, SAE1020 at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Hot Rolled GB Standard Round Steel Bar Q235, SAE1020 are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries. Carbon steel round bar is the most common form of steel because its price is relatively low while it provides material properties that are acceptable for many applications, more so than iron. It is often used when large quantities of steel are needed, for example as structural steel. The density of this product is approximately 7.85g/cm³ and the young's modulus, like all steels.
Product Advantages:
OKorder's Hot Rolled GB Standard Round Steel Bar Q235, SAE1020 are durable, strong, and resist corrosion.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Specifications of Hot Rolled GB Standard Round Steel Bar Q235, SAE1020
1. Grade: Q235, SS400, S235JR, A36
2. Sizes: Diameter: 6mm-150mm; Length: 6m, 9m, 12m or as customer’s request
3. Type: Mild steel; Low carbon steel
4. Shape: Round bar, solid bar of steel with circular section
5. Technique: Hot rolled or cold drawn
6. Mass: Mass(kg/m) = Diameter(mm)×Diameter(mm)×0.00617
Steel Type | Maximum forging temperature (°F / °C) | Burning temperature (°F / °C) |
1.5% carbon | 1920 / 1049 | 2080 / 1138 |
1.1% carbon | 1980 / 1082 | 2140 / 1171 |
0.9% carbon | 2050 / 1121 | 2230 / 1221 |
0.5% carbon | 2280 / 1249 | 2460 / 1349 |
0.2% carbon | 2410 / 1321 | 2680 / 1471 |
3.0% nickel steel | 2280 / 1249 | 2500 / 1371 |
3.0% nickel–chromium steel | 2280 / 1249 | 2500 / 1371 |
5.0% nickel (case-hardening) steel | 2320 / 1271 | 2640 / 1449 |
Packaging & Delivery of Hot Rolled GB Standard Round Steel Bar Q235, SAE1020
Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: 45 days
Trade terms: FOB, CFR, CIF
MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.
Weight: The price invoicing on theoretical weight basis or actual weight basis depends on customer’s request.
Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.
Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.
Production Flow of Hot Rolled GB Standard Round Steel Bar Q235, SAE1020
1. The common processes are preheated forging quenching, dual refinement solution process, cooling quenching and isothermal quenching. We use heat treatment for dual refinement solution process. The main measures process is high temperature solution and refinement cycle. High temperature solution can improve the carbide morphology and particle size. The aim is to make the loop refinement ultrafine austenite grains.
2. EAF+LF+VD+ Forged+ Heat Treatment
FAQ:
Q1: How soon can we receive the product after purchase?
A1: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: Can fit in the containers of 20fts the steel beams of 6M?
A3: No proble, we can put them into the containers in the form sideling.
- Q:How do you measure the hardness of a steel round bar?
- There are various methods to measure the hardness of a steel round bar, with the Rockwell hardness test being the most commonly used. This test involves applying a specific load to an indenter and measuring the depth of the resulting indentation on the material's surface. To measure the hardness of a steel round bar using the Rockwell hardness test, follow these steps: 1. Choose the appropriate Rockwell scale for the steel being tested. The commonly used scales for steel are HRC (Rockwell C) and HRB (Rockwell B). 2. Clean the surface of the steel round bar to eliminate any dirt, oil, or contaminants that could affect the test's accuracy. 3. Place the steel round bar on a flat and stable surface, ensuring proper support to prevent any movement during testing. 4. Select the suitable indenter for the chosen Rockwell scale. For HRC, a diamond cone indenter is typically used, while for HRB, a hardened steel ball is used. 5. Apply a preliminary minor load to the indenter, usually 10 kgf for HRC and 3 kgf for HRB. This ensures proper contact between the indenter and the material's surface. 6. Apply the major load, specific to the chosen Rockwell scale. For HRC, it is typically 150 kgf, while for HRB, it is usually 100 kgf. 7. Allow the major load to dwell for a specific period, typically 15 seconds, to ensure proper indentation. 8. Release the major load while maintaining the minor load. This allows the indenter to partially recover, reducing the depth of the indentation. 9. Measure the depth of the remaining indentation using a microscope or a specialized Rockwell hardness testing machine. The measured value corresponds to the hardness value on the chosen Rockwell scale. It's worth noting that the Rockwell hardness test is just one of several methods available to measure the hardness of a steel round bar. Depending on the specific requirements of the application, other methods like the Brinell hardness test or the Vickers hardness test may also be utilized.
- Q:What is the difference between a smooth and a deformed steel round bar?
- A smooth steel round bar refers to a bar that has a consistently even surface without any visible imperfections or deformities. It is typically manufactured through a process called hot rolling, where a steel billet is heated and passed through a series of rolling mills to achieve the desired shape and surface finish. Smooth steel round bars are commonly used in applications where aesthetics and surface quality are important, such as architectural designs or decorative metalwork. On the other hand, a deformed steel round bar has intentional deformations or patterns on its surface. These deformations can take various forms, including ridges, ribs, or indentations. The purpose of adding deformations to the surface of a steel round bar is to enhance its bonding ability with concrete or other materials. The irregular surface of a deformed bar provides increased friction and better adhesion, improving the structural integrity of reinforced concrete structures. Deformed steel round bars are primarily used in construction projects, particularly in reinforced concrete structures like columns, beams, and slabs. The deformations on the surface of the bar help to prevent slippage between the steel and concrete, ensuring a stronger bond and improving the overall stability and durability of the structure. In summary, the main difference between a smooth and a deformed steel round bar lies in their surface characteristics and intended applications. Smooth bars have a uniform and smooth surface, ideal for applications where aesthetics and surface quality are important. Deformed bars, on the other hand, have intentional deformations to enhance bonding with concrete, making them suitable for construction projects requiring reinforced concrete structures.
- Q:Can steel round bars be bent or formed into different shapes?
- Steel round bars have the capability to undergo bending or shaping into diverse forms. Steel possesses a remarkably malleable nature, signifying that it can be easily molded sans any fracturing or cracking. To achieve the bending or shaping of steel round bars, multiple techniques can be employed, including the application of heat to enhance pliability or the utilization of specialized tools like hydraulic benders or presses. The extent to which steel round bars can be bent or shaped is contingent upon factors such as steel thickness, composition, and the desired specific form or angle. In a broader sense, steel round bars provide a versatile choice for fabricating a wide array of shapes and structures that are indispensable in various industries, encompassing construction, automotive, and manufacturing.
- Q:Can steel round bars be used in the manufacturing of fasteners?
- Yes, steel round bars can be used in the manufacturing of fasteners. Steel round bars are often used as raw materials to create fasteners such as screws, bolts, and nuts. The round shape of the bars allows for easy shaping and machining to meet the desired specifications of the fasteners. Additionally, steel is a strong and durable material that provides the necessary strength and resilience required for fasteners to withstand various applications and loads. Therefore, steel round bars are commonly utilized in the manufacturing of fasteners due to their mechanical properties and versatility.
- Q:What is the maximum aluminum content allowed for steel round bars?
- The maximum aluminum content allowed for steel round bars typically varies depending on the specific industry standards and specifications. However, a common maximum aluminum content limit for steel round bars is around 0.20-0.35%.
- Q:Can steel round bars be used for making power transmission systems?
- Yes, steel round bars can be used for making power transmission systems. Steel round bars are commonly used in various industries for their high strength and durability. They are suitable for power transmission systems due to their ability to withstand high torque and load capacities. Steel round bars can be machined and formed into various shapes and sizes, making them versatile for different power transmission applications. Additionally, steel has excellent wear resistance and can withstand harsh operating conditions, making it an ideal material for power transmission systems that require long-lasting performance.
- Q:Will the theoretical weight of thread steel and round steel be the same?
- The theoretical weight of threaded steel and round steel is the same. The middle part of the steel bar size ratio is small, the design time actually unit weight are the same, just screw steel crescent and transverse ribs prominent, resulting in heavy steel should be better than the illusion of formula is 0.00617 multiplied by the square of the diameter / m.
- Q:What is the difference between a circle and round steel continuous casting
- Round steel drawn from a continuous casting is called a round billet; the rolled round steel is called a bar.
- Q:What are the different types of steel round bar alloys?
- Some of the different types of steel round bar alloys include carbon steel, alloy steel, stainless steel, tool steel, and high-speed steel.
- Q:Are steel round bars suitable for electrical conductivity?
- No, steel round bars are not suitable for electrical conductivity.
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Hot Rolled GB Standard Round Steel Bar Q235, SAE1020
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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